refactor: repo-actor: rewrite tests using mockall

.cargo/config.toml

@@ -13,5 +13,5 @@ debug = 0
 strip = "debuginfo"
 
 [env]
-RUSTLOG = "hyper=warn"
+RUST_LOG = "hyper=warn,debug"
 RUSTFLAGS = "--cfg tokio_unstable"

Cargo.toml

@@ -97,3 +97,4 @@ assert2 = "0.3"
 pretty_assertions = "1.4"
 rand = "0.8"
 mockall = "0.12"
+test-log = "0.2"

bacon.toml

@@ -4,7 +4,7 @@
 # Complete help on configuration: https://dystroy.org/bacon/config/
 
 default_job = "check"
-reverse = true
+# reverse = true
 
 [jobs.check]
 command = ["cargo", "check", "--color", "always"]
@@ -57,7 +57,7 @@ on_success = "back" # so that we don't open the browser at each change
 # If you want to pass options to your program, a `--` separator
 # will be needed.
 [jobs.run]
-command = [ "cargo", "run", "--color", "always" ]
+command = ["cargo", "run", "--color", "always"]
 need_stdout = true
 allow_warnings = true
 

crates/cli/src/main.rs

@@ -42,7 +42,8 @@ async fn main() {
                 git_next_server::init(fs);
             }
             Server::Start => {
-                git_next_server::start(fs, net, repo).await;
+                let sleep_duration = std::time::Duration::from_secs(10);
+                git_next_server::start(fs, net, repo, sleep_duration).await;
             }
         },
     }

crates/config/Cargo.toml

@@ -10,17 +10,7 @@ github = []
 
 [dependencies]
 # logging
-# console-subscriber = { workspace = true }
 tracing = { workspace = true }
-# tracing-subscriber = { workspace = true }
-
-# # base64 decoding
-# base64 = { workspace = true }
-#
-# # git
-# # gix = { workspace = true }
-# gix = { workspace = true }
-# async-trait = { workspace = true }
 
 # fs/network
 kxio = { workspace = true }
@@ -33,26 +23,13 @@ toml = { workspace = true }
 # Secrets and Password
 secrecy = { workspace = true }
 
-# # Conventional Commit check
-# git-conventional = { workspace = true }
-#
 # Webhooks
-# bytes = { workspace = true }
 ulid = { workspace = true }
-# warp = { workspace = true }
 
 # boilerplate
 derive_more = { workspace = true }
 derive-with = { workspace = true }
 thiserror = { workspace = true }
-#
-# # file watcher
-# inotify = { workspace = true }
-
-# Actors
-actix = { workspace = true }
-# actix-rt = { workspace = true }
-# tokio = { workspace = true }
 
 [dev-dependencies]
 # # Testing

crates/config/src/forge_alias.rs

@@ -1,5 +1,5 @@
 // The name of a Forge to connect to
-crate::newtype!(ForgeAlias is a String, derive_more::Display, Default);
+crate::newtype!(ForgeAlias is a String, Hash, derive_more::Display, Default);
 impl From<&ForgeAlias> for std::path::PathBuf {
     fn from(value: &ForgeAlias) -> Self {
         Self::from(&value.0)

crates/config/src/forge_config.rs

@@ -5,7 +5,16 @@ use crate::{ApiToken, ForgeType, Hostname, RepoAlias, ServerRepoConfig, User};
 /// Defines a Forge to connect to
 /// Maps from `git-next-server.toml` at `forge.{forge}`
 #[derive(
-    Clone, Debug, PartialEq, Eq, serde::Deserialize, derive_more::Constructor, derive_more::Display,
+    Clone,
+    Debug,
+    derive_more::From,
+    PartialEq,
+    Eq,
+    PartialOrd,
+    Ord,
+    serde::Deserialize,
+    derive_more::Constructor,
+    derive_more::Display,
 )]
 #[display("{}:{}@{}", forge_type.to_string().to_lowercase(), user, hostname)]
 pub struct ForgeConfig {

crates/config/src/forge_type.rs

@@ -1,5 +1,16 @@
 /// Identifier for the type of Forge
-#[derive(Clone, Default, Copy, Debug, PartialEq, Eq, serde::Deserialize)]
+#[derive(
+    Clone,
+    Default,
+    Debug,
+    derive_more::From,
+    PartialEq,
+    Eq,
+    PartialOrd,
+    Ord,
+    serde::Deserialize,
+    Copy,
+)]
 pub enum ForgeType {
     #[cfg(feature = "forgejo")]
     ForgeJo,

crates/config/src/lib.rs

@@ -41,5 +41,6 @@ pub use repo_path::RepoPath;
 pub use server_repo_config::ServerRepoConfig;
 pub use user::User;
 pub use webhook::auth::WebhookAuth;
+pub use webhook::forge_notification::ForgeNotification;
 pub use webhook::id::WebhookId;
-pub use webhook::message::WebhookMessage;
+

crates/config/src/newtype.rs

@@ -32,7 +32,6 @@ macro_rules! newtype {
             Eq,
             PartialOrd,
             Ord,
-            Hash,
             derive_more::AsRef,
             derive_more::Deref,
             $($derive),*

crates/config/src/repo_alias.rs

@@ -1,9 +1,7 @@
-/// The alias of a repo
-/// This is the alias for the repo within `git-next-server.toml`
-#[derive(Clone, Default, Debug, PartialEq, Eq, Hash, derive_more::Display)]
-pub struct RepoAlias(String);
-impl RepoAlias {
-    pub fn new(str: impl Into<String>) -> Self {
-        Self(str.into())
-    }
-}
+use derive_more::Display;
+
+use crate::newtype;
+
+// The alias of a repo
+// This is the alias for the repo within `git-next-server.toml`
+newtype!(RepoAlias is a String, Display, Default);

crates/config/src/repo_config.rs

@@ -16,6 +16,7 @@ use crate::RepoConfigSource;
     serde::Serialize,
     derive_more::Constructor,
     derive_more::Display,
+    derive_with::With,
 )]
 #[display("{}", branches)]
 pub struct RepoConfig {

crates/config/src/server.rs

@@ -1,8 +1,7 @@
 //
-use actix::prelude::*;
 
 use std::{
-    collections::HashMap,
+    collections::BTreeMap,
     net::SocketAddr,
     path::{Path, PathBuf},
     str::FromStr,
@@ -28,13 +27,23 @@ pub enum Error {
 type Result<T> = core::result::Result<T, Error>;
 
 /// Mapped from the `git-next-server.toml` file
-#[derive(Debug, PartialEq, Eq, serde::Deserialize, Message, derive_more::Constructor)]
-#[rtype(result = "()")]
+#[derive(
+    Clone,
+    Debug,
+    derive_more::From,
+    PartialEq,
+    Eq,
+    PartialOrd,
+    Ord,
+    derive_more::AsRef,
+    serde::Deserialize,
+    derive_more::Constructor,
+)]
 pub struct ServerConfig {
     http: Http,
     webhook: Webhook,
     storage: ServerStorage,
-    pub forge: HashMap<String, ForgeConfig>,
+    pub forge: BTreeMap<String, ForgeConfig>,
 }
 impl ServerConfig {
     #[tracing::instrument(skip_all)]
@@ -65,7 +74,18 @@ impl ServerConfig {
 }
 
 /// Defines the port the server will listen to for incoming webhooks messages
-#[derive(Clone, Debug, PartialEq, Eq, serde::Deserialize, derive_more::Constructor)]
+#[derive(
+    Clone,
+    Debug,
+    derive_more::From,
+    PartialEq,
+    Eq,
+    PartialOrd,
+    Ord,
+    derive_more::AsRef,
+    serde::Deserialize,
+    derive_more::Constructor,
+)]
 pub struct Http {
     addr: String,
     port: u16,
@@ -81,7 +101,18 @@ impl Http {
 
 /// Defines the Webhook Forges should send updates to
 /// Must be an address that is accessible from the remote forge
-#[derive(Clone, Debug, PartialEq, Eq, serde::Deserialize, derive_more::Constructor)]
+#[derive(
+    Clone,
+    Debug,
+    derive_more::From,
+    PartialEq,
+    Eq,
+    PartialOrd,
+    Ord,
+    derive_more::AsRef,
+    serde::Deserialize,
+    derive_more::Constructor,
+)]
 pub struct Webhook {
     url: String,
 }
@@ -99,7 +130,18 @@ impl Webhook {
 newtype!(WebhookUrl is a String, serde::Serialize);
 
 /// The directory to store server data, such as cloned repos
-#[derive(Clone, Debug, PartialEq, Eq, serde::Deserialize, derive_more::Constructor)]
+#[derive(
+    Clone,
+    Debug,
+    derive_more::From,
+    PartialEq,
+    Eq,
+    PartialOrd,
+    Ord,
+    derive_more::AsRef,
+    serde::Deserialize,
+    derive_more::Constructor,
+)]
 pub struct ServerStorage {
     path: PathBuf,
 }

crates/config/src/server_repo_config.rs

@@ -5,7 +5,16 @@ use crate::{BranchName, GitDir, RepoBranches, RepoConfig, RepoConfigSource, Repo
 /// Defines a Repo within a ForgeConfig to be monitored by the server
 /// Maps from `git-next-server.toml` at `forge.{forge}.repos.{name}`
 #[derive(
-    Clone, Debug, PartialEq, Eq, serde::Deserialize, derive_more::Constructor, derive_more::Display,
+    Clone,
+    Debug,
+    derive_more::From,
+    PartialEq,
+    Eq,
+    PartialOrd,
+    Ord,
+    serde::Deserialize,
+    derive_more::Display,
+    derive_more::Constructor,
 )]
 #[display("{}@{}", repo, branch)]
 pub struct ServerRepoConfig {

crates/config/src/tests.rs

@@ -575,12 +575,11 @@ mod webhook {
     use super::*;
     mod message {
         use super::*;
-        use std::collections::HashMap;
 
         #[test]
         fn should_return_forge_alias() {
             let forge_alias = given::a_forge_alias();
-            let message = WebhookMessage::new(
+            let message = ForgeNotification::new(
                 forge_alias.clone(),
                 given::a_repo_alias(),
                 Default::default(),
@@ -591,7 +590,7 @@ mod webhook {
         #[test]
         fn should_return_repo_alias() {
             let repo_alias = given::a_repo_alias();
-            let message = WebhookMessage::new(
+            let message = ForgeNotification::new(
                 given::a_forge_alias(),
                 repo_alias.clone(),
                 Default::default(),
@@ -602,7 +601,7 @@ mod webhook {
         #[test]
         fn should_return_body() {
             let body = given::a_webhook_message_body();
-            let message = WebhookMessage::new(
+            let message = ForgeNotification::new(
                 given::a_forge_alias(),
                 given::a_repo_alias(),
                 Default::default(),
@@ -614,9 +613,9 @@ mod webhook {
         fn should_return_header() {
             let key = given::a_name();
             let value = given::a_name();
-            let mut headers: HashMap<String, String> = Default::default();
+            let mut headers: BTreeMap<String, String> = Default::default();
             headers.insert(key.clone(), value.clone());
-            let message = WebhookMessage::new(
+            let message = ForgeNotification::new(
                 given::a_forge_alias(),
                 given::a_repo_alias(),
                 headers,
@@ -704,7 +703,7 @@ mod given {
     use super::*;
     use rand::Rng as _;
     use std::{
-        collections::{BTreeMap, HashMap},
+        collections::BTreeMap,
         path::{Path, PathBuf},
     };
 
@@ -750,7 +749,7 @@ mod given {
     pub fn a_server_storage() -> ServerStorage {
         ServerStorage::new(a_name().into())
     }
-    pub fn some_forge_configs() -> HashMap<String, ForgeConfig> {
+    pub fn some_forge_configs() -> BTreeMap<String, ForgeConfig> {
         [(a_name(), a_forge_config())].into()
     }
     pub fn a_forge_config() -> ForgeConfig {
@@ -792,8 +791,8 @@ mod given {
         RepoAlias::new(a_name())
     }
 
-    pub fn a_webhook_message_body() -> crate::webhook::message::Body {
-        crate::webhook::message::Body::new(a_name())
+    pub fn a_webhook_message_body() -> crate::webhook::forge_notification::Body {
+        crate::webhook::forge_notification::Body::new(a_name())
     }
 
     pub fn some_repo_branches() -> RepoBranches {

crates/config/src/webhook.rs

@@ -1,6 +1,6 @@
 pub mod auth;
+pub mod forge_notification;
 pub mod id;
-pub mod message;
 pub mod push;
 
 #[cfg(test)]

crates/config/src/webhook/forge_notification.rs

@@ -1,19 +1,17 @@
 //
-use actix::prelude::*;
-
 use crate as config;
 
-use std::collections::HashMap;
+use std::collections::BTreeMap;
 
-#[derive(Message, Debug, Clone, derive_more::Constructor)]
-#[rtype(result = "()")]
-pub struct WebhookMessage {
+/// A notification receive from a Forge, typically via a Webhook.
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, derive_more::Constructor)]
+pub struct ForgeNotification {
     forge_alias: config::ForgeAlias,
     repo_alias: config::RepoAlias,
-    headers: HashMap<String, String>,
+    headers: BTreeMap<String, String>,
     body: Body,
 }
-impl WebhookMessage {
+impl ForgeNotification {
     pub const fn forge_alias(&self) -> &config::ForgeAlias {
         &self.forge_alias
     }
@@ -28,7 +26,7 @@ impl WebhookMessage {
     }
 }
 
-#[derive(Clone, Debug, derive_more::Constructor)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, derive_more::Constructor)]
 pub struct Body(String);
 impl Body {
     pub fn as_str(&self) -> &str {

crates/forge-forgejo/src/lib.rs

@@ -23,13 +23,16 @@ impl ForgeJo {
 }
 #[async_trait::async_trait]
 impl git::ForgeLike for ForgeJo {
+    fn duplicate(&self) -> Box<dyn git::ForgeLike> {
+        Box::new(self.clone())
+    }
     fn name(&self) -> String {
         "forgejo".to_string()
     }
 
     fn is_message_authorised(
         &self,
-        msg: &config::WebhookMessage,
+        msg: &config::ForgeNotification,
         expected: &config::WebhookAuth,
     ) -> bool {
         let authorization = msg.header("authorization");
@@ -43,7 +46,7 @@ impl git::ForgeLike for ForgeJo {
 
     fn parse_webhook_body(
         &self,
-        body: &config::webhook::message::Body,
+        body: &config::webhook::forge_notification::Body,
     ) -> git::forge::webhook::Result<config::webhook::Push> {
         webhook::parse_body(body)
     }

crates/forge-forgejo/src/tests.rs

@@ -77,7 +77,7 @@ mod forgejo {
             let next = repo_branches.next();
             let sha = given::a_name();
             let message = given::a_name();
-            let body = config::webhook::message::Body::new(
+            let body = config::webhook::forge_notification::Body::new(
                 json!({"ref":format!("refs/heads/{next}"),"after":sha,"head_commit":{"message":message}})
                     .to_string(),
             );
@@ -94,7 +94,8 @@ mod forgejo {
         fn should_error_invalid_body() {
             let fs = given::a_filesystem();
             let forge = given::a_forgejo_forge(&given::repo_details(&fs), given::a_network());
-            let body = config::webhook::message::Body::new(r#"{"type":"invalid"}"#.to_string());
+            let body =
+                config::webhook::forge_notification::Body::new(r#"{"type":"invalid"}"#.to_string());
             let_assert!(Err(_) = forge.parse_webhook_body(&body));
         }
     }
@@ -588,7 +589,7 @@ mod forgejo {
     }
     mod given {
 
-        use std::collections::HashMap;
+        use std::collections::BTreeMap;
 
         use kxio::network::{MockNetwork, StatusCode};
         use serde_json::json;
@@ -630,8 +631,8 @@ mod forgejo {
             WrongUlid,
         }
 
-        pub fn a_webhook_message(header: Header) -> config::WebhookMessage {
-            config::WebhookMessage::new(
+        pub fn a_webhook_message(header: Header) -> config::ForgeNotification {
+            config::ForgeNotification::new(
                 given::a_forge_alias(),
                 given::a_repo_alias(),
                 given::webhook_headers(header),
@@ -639,8 +640,8 @@ mod forgejo {
             )
         }
 
-        pub fn webhook_headers(header: Header) -> HashMap<String, String> {
-            let mut headers = HashMap::new();
+        pub fn webhook_headers(header: Header) -> BTreeMap<String, String> {
+            let mut headers = BTreeMap::new();
             match header {
                 Header::Valid(auth) => {
                     headers.insert("authorization".to_string(), format!("Basic {auth}"));
@@ -678,8 +679,8 @@ mod forgejo {
             config::WebhookAuth::generate()
         }
 
-        pub fn a_webhook_message_body() -> config::webhook::message::Body {
-            config::webhook::message::Body::new(a_name())
+        pub fn a_webhook_message_body() -> config::webhook::forge_notification::Body {
+            config::webhook::forge_notification::Body::new(a_name())
         }
 
         pub fn repo_branches() -> config::RepoBranches {

crates/forge-forgejo/src/webhook/parse.rs

@@ -4,7 +4,7 @@ use git_next_config as config;
 use git_next_git as git;
 
 pub fn parse_body(
-    body: &config::webhook::message::Body,
+    body: &config::webhook::forge_notification::Body,
 ) -> git::forge::webhook::Result<config::webhook::Push> {
     serde_json::from_str::<forgejo::webhook::Push>(body.as_str())?.try_into()
 }

crates/forge-github/src/lib.rs

@@ -19,13 +19,16 @@ pub struct Github {
 }
 #[async_trait::async_trait]
 impl git::ForgeLike for Github {
+    fn duplicate(&self) -> Box<dyn git::ForgeLike> {
+        Box::new(self.clone())
+    }
     fn name(&self) -> String {
         "github".to_string()
     }
 
     fn is_message_authorised(
         &self,
-        msg: &config::WebhookMessage,
+        msg: &config::ForgeNotification,
         webhook_auth: &config::WebhookAuth,
     ) -> bool {
         github::webhook::is_authorised(msg, webhook_auth)
@@ -33,7 +36,7 @@ impl git::ForgeLike for Github {
 
     fn parse_webhook_body(
         &self,
-        body: &config::webhook::message::Body,
+        body: &config::webhook::forge_notification::Body,
     ) -> git::forge::webhook::Result<config::webhook::push::Push> {
         github::webhook::parse_body(body)
     }

crates/forge-github/src/tests/mod.rs

@@ -10,8 +10,8 @@ mod github {
 
     use crate::Github;
     use config::{
-        webhook::message::Body, ForgeAlias, ForgeConfig, ForgeType, GitDir, RepoAlias,
-        RepoBranches, ServerRepoConfig, WebhookAuth, WebhookMessage,
+        webhook::forge_notification::Body, ForgeAlias, ForgeConfig, ForgeNotification, ForgeType,
+        GitDir, RepoAlias, RepoBranches, ServerRepoConfig, WebhookAuth,
     };
     use git::ForgeLike as _;
 
@@ -536,7 +536,6 @@ mod github {
     }
 
     mod given {
-        use std::collections::HashMap;
 
         use git_next_config::{server::Webhook, WebhookId};
         use kxio::network::{MockNetwork, StatusCode};
@@ -584,20 +583,20 @@ mod github {
             Missing,
             Invalid,
         }
-        pub fn a_webhook_message(header: Header) -> WebhookMessage {
+        pub fn a_webhook_message(header: Header) -> ForgeNotification {
             let body = match &header {
                 Header::Valid(_, body) => body.clone(),
                 _ => given::a_webhook_message_body(),
             };
-            WebhookMessage::new(
+            ForgeNotification::new(
                 given::a_forge_alias(),
                 given::a_repo_alias(),
                 given::webhook_headers(header),
                 body,
             )
         }
-        pub fn webhook_headers(header: Header) -> HashMap<String, String> {
-            let mut headers = HashMap::new();
+        pub fn webhook_headers(header: Header) -> BTreeMap<String, String> {
+            let mut headers = BTreeMap::new();
             match header {
                 Header::Valid(auth, body) => {
                     if let Some(sig) = crate::webhook::sign_body(&auth, &body) {

crates/forge-github/src/webhook/authorised.rs

@@ -1,7 +1,7 @@
 //
 use git_next_config as config;
 
-pub fn is_authorised(msg: &config::WebhookMessage, webhook_auth: &config::WebhookAuth) -> bool {
+pub fn is_authorised(msg: &config::ForgeNotification, webhook_auth: &config::WebhookAuth) -> bool {
     msg.header("x-hub-signature-256")
         .map(|x| x.trim_matches('"').to_string())
         .and_then(|sha| sha.strip_prefix("sha256=").map(|k| k.to_string()))
@@ -21,7 +21,7 @@ pub fn is_authorised(msg: &config::WebhookMessage, webhook_auth: &config::Webhoo
 #[cfg(test)]
 pub fn sign_body(
     webhook_auth: &config::WebhookAuth,
-    body: &config::webhook::message::Body,
+    body: &config::webhook::forge_notification::Body,
 ) -> std::option::Option<String> {
     let payload = body.as_str();
     use hmac::Mac;

crates/forge-github/src/webhook/parse.rs

@@ -4,7 +4,7 @@ use git_next_config as config;
 use git_next_git as git;
 
 pub fn parse_body(
-    body: &config::webhook::message::Body,
+    body: &config::webhook::forge_notification::Body,
 ) -> git::forge::webhook::Result<config::webhook::push::Push> {
     serde_json::from_str::<github::webhook::Push>(body.as_str())?.try_into()
 }

crates/forge/src/lib.rs

@@ -4,11 +4,9 @@ use git_next_forge_github as github;
 use git_next_git as git;
 use kxio::network::Network;
 
-mod mock_forge;
-
 #[derive(Clone, Debug)]
 pub enum Forge {
-    Mock(mock_forge::MockForge),
+    Mock,
 
     #[cfg(feature = "forgejo")]
     ForgeJo(git_next_forge_forgejo::ForgeJo),
@@ -17,17 +15,15 @@ pub enum Forge {
     Github(git_next_forge_github::Github),
 }
 impl Forge {
-    pub fn new(repo_details: git::RepoDetails, net: Network) -> Self {
+    pub fn create(repo_details: git::RepoDetails, net: Network) -> Box<dyn git::ForgeLike> {
         match repo_details.forge.forge_type() {
             #[cfg(feature = "forgejo")]
             git_next_config::ForgeType::ForgeJo => {
-                Self::ForgeJo(forgejo::ForgeJo::new(repo_details, net))
+                Box::new(forgejo::ForgeJo::new(repo_details, net))
             }
             #[cfg(feature = "github")]
-            git_next_config::ForgeType::GitHub => {
-                Self::Github(github::Github::new(repo_details, net))
-            }
-            git_next_config::ForgeType::MockForge => Self::Mock(mock_forge::MockForge::new()),
+            git_next_config::ForgeType::GitHub => Box::new(github::Github::new(repo_details, net)),
+            git_next_config::ForgeType::MockForge => unreachable!(),
         }
     }
 }
@@ -35,7 +31,7 @@ impl std::ops::Deref for Forge {
     type Target = dyn git::ForgeLike;
     fn deref(&self) -> &Self::Target {
         match self {
-            Self::Mock(env) => env,
+            Self::Mock => unreachable!(),
             #[cfg(feature = "forgejo")]
             Self::ForgeJo(env) => env,
             #[cfg(feature = "github")]

crates/forge/src/mock_forge.rs

@@ -1,59 +0,0 @@
-//
-#![cfg(not(tarpaulin_include))]
-
-use derive_more::Constructor;
-use git_next_config as config;
-use git_next_git as git;
-
-#[derive(Clone, Debug, Constructor)]
-pub struct MockForge;
-
-#[async_trait::async_trait]
-impl git::ForgeLike for MockForge {
-    fn name(&self) -> String {
-        "mock".to_string()
-    }
-
-    fn is_message_authorised(
-        &self,
-        _msg: &config::WebhookMessage,
-        _expected: &config::WebhookAuth,
-    ) -> bool {
-        todo!("MockForge::is_message_authorised")
-    }
-
-    fn parse_webhook_body(
-        &self,
-        _body: &config::webhook::message::Body,
-    ) -> git::forge::webhook::Result<config::webhook::push::Push> {
-        todo!("MockForge::parse_webhook_body")
-    }
-
-    async fn commit_status(&self, _commit: &git::Commit) -> git::forge::commit::Status {
-        todo!("MockForge::commit_status")
-    }
-
-    async fn list_webhooks(
-        &self,
-        _webhook_url: &config::server::WebhookUrl,
-    ) -> git::forge::webhook::Result<Vec<config::WebhookId>> {
-        todo!("MockForge::list_webhooks")
-    }
-
-    async fn unregister_webhook(
-        &self,
-        _webhook_id: &config::WebhookId,
-    ) -> git::forge::webhook::Result<()> {
-        todo!("MockForge::unregister_webhook")
-    }
-
-    async fn register_webhook(
-        &self,
-        _webhook_url: &config::server::WebhookUrl,
-    ) -> git::forge::webhook::Result<config::RegisteredWebhook> {
-        Ok(config::RegisteredWebhook::new(
-            config::WebhookId::new(""),
-            config::WebhookAuth::new(ulid::Ulid::new()),
-        ))
-    }
-}

crates/forge/src/tests.rs

@@ -4,19 +4,11 @@ use super::*;
 use git_next_config as config;
 use git_next_git::{self as git, RepoDetails};
 
-#[test]
-fn test_mock_name() {
-    let net = Network::new_mock();
-    let repo_details = given_repo_details(config::ForgeType::MockForge);
-    let forge = Forge::new(repo_details, net);
-    assert_eq!(forge.name(), "mock");
-}
-
 #[test]
 fn test_forgejo_name() {
     let net = Network::new_mock();
     let repo_details = given_repo_details(config::ForgeType::ForgeJo);
-    let forge = Forge::new(repo_details, net);
+    let forge = Forge::create(repo_details, net);
     assert_eq!(forge.name(), "forgejo");
 }
 
@@ -24,7 +16,7 @@ fn test_forgejo_name() {
 fn test_github_name() {
     let net = Network::new_mock();
     let repo_details = given_repo_details(config::ForgeType::GitHub);
-    let forge = Forge::new(repo_details, net);
+    let forge = Forge::create(repo_details, net);
     assert_eq!(forge.name(), "github");
 }
 

crates/git/src/commit.rs

@@ -37,8 +37,8 @@ impl From<config::webhook::Push> for Commit {
     }
 }
 
-newtype!(Sha is a String, Display);
-newtype!(Message is a String);
+newtype!(Sha is a String, Display, Hash);
+newtype!(Message is a String, Hash);
 
 #[derive(Clone, Debug)]
 pub struct Histories {

crates/git/src/forge/commit.rs

@@ -1,4 +1,4 @@
-#[derive(Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq, PartialOrd, Ord)]
 pub enum Status {
     Pass,
     Fail,

crates/git/src/forge/like.rs

@@ -1,21 +1,23 @@
 use crate as git;
 use git_next_config as config;
 
+#[mockall::automock]
 #[async_trait::async_trait]
-pub trait ForgeLike {
+pub trait ForgeLike: std::fmt::Debug + Send + Sync {
+    fn duplicate(&self) -> Box<dyn ForgeLike>;
     fn name(&self) -> String;
 
     /// Checks that the message has a valid authorisation
     fn is_message_authorised(
         &self,
-        message: &config::WebhookMessage,
+        message: &config::ForgeNotification,
         expected: &config::WebhookAuth,
     ) -> bool;
 
     /// Parses the webhook body into Some(Push) struct if appropriate, or None if not.
     fn parse_webhook_body(
         &self,
-        body: &config::webhook::message::Body,
+        body: &config::webhook::forge_notification::Body,
     ) -> git::forge::webhook::Result<config::webhook::push::Push>;
 
     /// Checks the results of any (e.g. CI) status checks for the commit.

crates/git/src/lib.rs

@@ -17,6 +17,7 @@ mod tests;
 
 pub use commit::Commit;
 pub use forge::like::ForgeLike;
+pub use forge::like::MockForgeLike;
 pub use generation::Generation;
 pub use git_ref::GitRef;
 pub use git_remote::GitRemote;

crates/git/src/push.rs

@@ -47,12 +47,12 @@ pub enum Error {
 }
 
 pub fn reset(
-    repository: &dyn git::repository::OpenRepositoryLike,
+    open_repository: &dyn git::repository::OpenRepositoryLike,
     repo_details: &git::RepoDetails,
     branch_name: &config::BranchName,
     to_commit: &git::GitRef,
     force: &git::push::Force,
 ) -> Result<()> {
-    repository.fetch()?;
-    repository.push(repo_details, branch_name, to_commit, force)
+    open_repository.fetch()?;
+    open_repository.push(repo_details, branch_name, to_commit, force)
 }

crates/git/src/repo_details.rs

@@ -1,7 +1,8 @@
-use git_next_config::{
+use config::{
     BranchName, ForgeAlias, ForgeConfig, ForgeDetails, GitDir, RepoAlias, RepoConfig, RepoPath,
     ServerRepoConfig,
 };
+use git_next_config as config;
 
 use super::{Generation, GitRemote};
 
@@ -57,4 +58,10 @@ impl RepoDetails {
     pub fn git_remote(&self) -> GitRemote {
         GitRemote::new(self.forge.hostname().clone(), self.repo_path.clone())
     }
+
+    pub fn with_hostname(mut self, hostname: config::Hostname) -> Self {
+        let forge = self.forge;
+        self.forge = forge.with_hostname(hostname);
+        self
+    }
 }

crates/git/src/repository/mod.rs

@@ -23,7 +23,7 @@ pub use real::RealRepository;
 use tracing::info;
 
 use crate::repository::test::TestRepository;
-use crate::validation::repo::validate_repo;
+use crate::validation::remotes::validate_default_remotes;
 
 use super::RepoDetails;
 
@@ -52,19 +52,20 @@ pub const fn test(fs: kxio::fs::FileSystem) -> TestRepository {
 #[tracing::instrument(skip_all)]
 #[cfg(not(tarpaulin_include))] // requires network access to either clone new and/or fetch.
 pub fn open(
-    repository: &dyn RepositoryFactory,
+    repository_factory: &dyn RepositoryFactory,
     repo_details: &RepoDetails,
     gitdir: config::GitDir,
 ) -> Result<Box<dyn OpenRepositoryLike>> {
     let open_repository = if !gitdir.exists() {
         info!("Local copy not found - cloning...");
-        repository.git_clone(repo_details)?
+        repository_factory.git_clone(repo_details)?
     } else {
         info!("Local copy found - opening...");
-        repository.open(&gitdir)?
+        repository_factory.open(&gitdir)?
     };
     info!("Validating...");
-    validate_repo(&*open_repository, repo_details).map_err(|e| Error::Validation(e.to_string()))?;
+    validate_default_remotes(&*open_repository, repo_details)
+        .map_err(|e| Error::Validation(e.to_string()))?;
     Ok(open_repository)
 }
 
@@ -125,7 +126,7 @@ impl std::ops::Deref for Repository {
     }
 }
 
-#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 pub enum Direction {
     /// Push local changes to the remote.
     Push,

crates/git/src/repository/tests.rs

@@ -1,7 +1,7 @@
 use crate as git;
 
 mod validate {
-    use crate::{tests::given, validation::repo::validate_repo};
+    use crate::{tests::given, validation::remotes::validate_default_remotes};
 
     use super::*;
     use git::repository::Direction;
@@ -17,7 +17,7 @@ mod validate {
             .expect_find_default_remote()
             .returning(move |_direction| Some(repo_details_mock.git_remote()));
 
-        let result = validate_repo(&*open_repository, &repo_details);
+        let result = validate_default_remotes(&*open_repository, &repo_details);
         println!("{result:?}");
         assert!(result.is_ok());
     }
@@ -36,7 +36,7 @@ mod validate {
                 Direction::Fetch => Some(repo_details_mock.git_remote()),
             });
 
-        let result = validate_repo(&*open_repository, &repo_details);
+        let result = validate_default_remotes(&*open_repository, &repo_details);
         println!("{result:?}");
         assert!(result.is_err());
     }
@@ -55,7 +55,7 @@ mod validate {
                 Direction::Fetch => None,
             });
 
-        let result = validate_repo(&*open_repository, &repo_details);
+        let result = validate_default_remotes(&*open_repository, &repo_details);
         println!("{result:?}");
         assert!(result.is_err());
     }
@@ -74,7 +74,7 @@ mod validate {
                 Direction::Fetch => Some(repo_details_mock.git_remote()),
             });
 
-        let result = validate_repo(&*open_repository, &repo_details);
+        let result = validate_default_remotes(&*open_repository, &repo_details);
         println!("{result:?}");
         assert!(result.is_err());
     }
@@ -93,7 +93,7 @@ mod validate {
                 Direction::Fetch => Some(given::a_git_remote()),
             });
 
-        let result = validate_repo(&*open_repository, &repo_details);
+        let result = validate_default_remotes(&*open_repository, &repo_details);
         println!("{result:?}");
         assert!(result.is_err());
     }

crates/git/src/validation/mod.rs

@@ -1,5 +1,5 @@
 pub mod positions;
-pub mod repo;
+pub mod remotes;
 
 #[cfg(test)]
 mod tests;

crates/git/src/validation/positions.rs

@@ -2,8 +2,6 @@
 use crate as git;
 use git_next_config as config;
 
-use tracing::{error, info, warn};
-
 pub type Result<T> = core::result::Result<T, Error>;
 
 #[derive(Debug)]
@@ -14,7 +12,7 @@ pub struct Positions {
     pub dev_commit_history: Vec<git::Commit>,
 }
 
-#[allow(clippy::cognitive_complexity)] // TODO: (#83) reduce complexity
+// #[allow(clippy::cognitive_complexity)] // TODO: (#83) reduce complexity
 pub fn validate_positions(
     open_repository: &dyn git::repository::OpenRepositoryLike,
     repo_details: &git::RepoDetails,
@@ -46,7 +44,7 @@ pub fn validate_positions(
     // Validations:
     // Dev must be on main branch, else the USER must rebase it
     if is_not_based_on(&commit_histories.dev, &main) {
-        warn!("Dev '{dev_branch}' not based on main '{main_branch}' - user must rebase",);
+        tracing::warn!("Dev '{dev_branch}' not based on main '{main_branch}' - user must rebase",);
         return Err(Error::DevBranchNotBasedOn {
             dev: dev_branch,
             other: main_branch,
@@ -54,12 +52,12 @@ pub fn validate_positions(
     }
     // verify that next is on main or at most one commit on top of main, else reset it back to main
     if is_not_based_on(&commit_histories.next[0..=1], &main) {
-        info!("Main not on same commit as next, or it's parent - resetting next to main",);
+        tracing::info!("Main not on same commit as next, or it's parent - resetting next to main",);
         return reset_next_to_main(open_repository, repo_details, &main, &next, &next_branch);
     }
     // verify that next is an ancestor of dev, else reset it back to main
     if is_not_based_on(&commit_histories.dev, &next) {
-        info!("Next is not an ancestor of dev - resetting next to main");
+        tracing::info!("Next is not an ancestor of dev - resetting next to main");
         return reset_next_to_main(open_repository, repo_details, &main, &next, &next_branch);
     }
 
@@ -72,21 +70,21 @@ pub fn validate_positions(
 }
 
 fn reset_next_to_main(
-    repository: &dyn crate::repository::OpenRepositoryLike,
+    open_repository: &dyn crate::repository::OpenRepositoryLike,
     repo_details: &crate::RepoDetails,
     main: &crate::Commit,
     next: &crate::Commit,
     next_branch: &config::BranchName,
 ) -> Result<Positions> {
     git::push::reset(
-        repository,
+        open_repository,
         repo_details,
         next_branch,
         &main.clone().into(),
         &git::push::Force::From(next.clone().into()),
     )
     .map_err(|err| {
-        warn!(?err, "Failed to reset next to main");
+        tracing::warn!(?err, "Failed to reset next to main");
         Error::FailedToResetBranch {
             branch: next_branch.clone(),
             commit: next.clone(),
@@ -100,13 +98,13 @@ fn is_not_based_on(commits: &[crate::commit::Commit], needle: &crate::Commit) ->
 }
 
 fn get_commit_histories(
-    repository: &dyn git::repository::OpenRepositoryLike,
+    open_repository: &dyn git::repository::OpenRepositoryLike,
     repo_config: &config::RepoConfig,
 ) -> git::commit::log::Result<git::commit::Histories> {
-    let main = (repository.commit_log(&repo_config.branches().main(), &[]))?;
+    let main = (open_repository.commit_log(&repo_config.branches().main(), &[]))?;
     let main_head = [main[0].clone()];
-    let next = repository.commit_log(&repo_config.branches().next(), &main_head)?;
-    let dev = repository.commit_log(&repo_config.branches().dev(), &main_head)?;
+    let next = open_repository.commit_log(&repo_config.branches().next(), &main_head)?;
+    let dev = open_repository.commit_log(&repo_config.branches().dev(), &main_head)?;
     let histories = git::commit::Histories { main, next, dev };
     Ok(histories)
 }

crates/git/src/validation/remotes.rs

@@ -3,7 +3,7 @@ use tracing::info;
 use crate as git;
 
 #[tracing::instrument(skip_all)]
-pub fn validate_repo(
+pub fn validate_default_remotes(
     open_repository: &dyn git::repository::OpenRepositoryLike,
     repo_details: &git::RepoDetails,
 ) -> Result<()> {

crates/git/src/validation/tests.rs

@@ -33,12 +33,13 @@ mod repos {
             "open repo"
         );
 
-        let result = git::validation::repo::validate_repo(&*open_repository, &repo_details);
+        let result =
+            git::validation::remotes::validate_default_remotes(&*open_repository, &repo_details);
         print!("{result:?}");
         let_assert!(Err(err) = result);
         assert!(matches!(
             err,
-            git::validation::repo::Error::NoDefaultPushRemote
+            git::validation::remotes::Error::NoDefaultPushRemote
         ));
     }
 }

crates/repo-actor/Cargo.toml

@@ -42,12 +42,21 @@ ulid = { workspace = true }
 
 # boilerplate
 derive_more = { workspace = true }
+thiserror = { workspace = true }
 
 # Actors
 actix = { workspace = true }
 actix-rt = { workspace = true }
 tokio = { workspace = true }
 
+[dev-dependencies]
+# Testing
+assert2 = { workspace = true }
+rand = { workspace = true }
+pretty_assertions = { workspace = true }
+mockall = { workspace = true }
+test-log = { workspace = true }
+
 [lints.clippy]
 nursery = { level = "warn", priority = -1 }
 # pedantic = "warn"

crates/repo-actor/README.md

@@ -0,0 +1,35 @@
+```mermaid
+stateDiagram-v2
+[*] --> CloneRepo :Start
+
+CloneRepo --> LoadConfigFromRepo
+CloneRepo --> ValidateRepo
+
+LoadConfigFromRepo --> ReceiveRepoConfig
+
+ValidateRepo --> CheckCIStatus
+ValidateRepo --> AdvanceNext
+ValidateRepo --> ValidateRepo :invalid
+
+CheckCIStatus --> ReceiveCIStatus
+
+ReceiveCIStatus --> AdvanceMain :Pass
+ReceiveCIStatus --> ValidateRepo :Pending
+ReceiveCIStatus --> [*] :Fail
+
+AdvanceNext --> ValidateRepo
+
+ReceiveRepoConfig --> ValidateRepo
+ReceiveRepoConfig --> RegisterWebhook
+
+RegisterWebhook --> WebhookRegistered
+
+WebhookRegistered --> [*]
+
+AdvanceMain --> LoadConfigFromRepo :on repo config - reload
+AdvanceMain --> ValidateRepo :on server config
+
+[*] --> WebhookNotification :WEBHOOK
+
+WebhookNotification --> ValidateRepo
+```

crates/repo-actor/src/branch.rs

@@ -1,96 +1,100 @@
 //
-use actix::prelude::*;
-
+use crate::messages::MessageToken;
 use git_next_config as config;
 use git_next_git as git;
+
+use derive_more::Display;
 use tracing::{info, warn};
 
-use crate::{MessageToken, ValidateRepo};
-
-use std::time::Duration;
-
 // advance next to the next commit towards the head of the dev branch
 #[tracing::instrument(fields(next), skip_all)]
-pub async fn advance_next(
-    next: git::Commit,
-    dev_commit_history: Vec<git::Commit>,
+pub fn advance_next(
+    next: &git::Commit,
+    dev_commit_history: &[git::Commit],
     repo_details: git::RepoDetails,
     repo_config: config::RepoConfig,
     open_repository: &dyn git::repository::OpenRepositoryLike,
-    addr: Addr<super::RepoActor>,
     message_token: MessageToken,
-) {
-    let next_commit = find_next_commit_on_dev(next, dev_commit_history);
-    let Some(commit) = next_commit else {
-        warn!("No commits to advance next to");
-        return;
-    };
-    if let Some(problem) = validate_commit_message(commit.message()) {
-        warn!("Can't advance next to commit '{}': {}", commit, problem);
-        return;
-    }
+) -> Result<MessageToken> {
+    let commit =
+        find_next_commit_on_dev(next, dev_commit_history).ok_or_else(|| Error::NextAtDev)?;
+    validate_commit_message(commit.message())?;
     info!("Advancing next to commit '{}'", commit);
-    if let Err(err) = git::push::reset(
+    git::push::reset(
         open_repository,
         &repo_details,
         &repo_config.branches().next(),
         &commit.into(),
         &git::push::Force::No,
-    ) {
-        warn!(?err, "Failed")
-    }
-    tokio::time::sleep(Duration::from_secs(10)).await;
-    addr.do_send(ValidateRepo { message_token })
+    )?;
+    Ok(message_token)
 }
 
 #[tracing::instrument]
-fn validate_commit_message(message: &git::commit::Message) -> Option<String> {
+fn validate_commit_message(message: &git::commit::Message) -> Result<()> {
     let message = &message.to_string();
     if message.to_ascii_lowercase().starts_with("wip") {
-        return Some("Is Work-In-Progress".to_string());
+        return Err(Error::IsWorkInProgress);
     }
     match git_conventional::Commit::parse(message) {
         Ok(commit) => {
             info!(?commit, "Pass");
-            None
+            Ok(())
         }
         Err(err) => {
             warn!(?err, "Fail");
-            Some(err.kind().to_string())
+            Err(Error::InvalidCommitMessage {
+                reason: err.kind().to_string(),
+            })
         }
     }
 }
 
 pub fn find_next_commit_on_dev(
-    next: git::Commit,
-    dev_commit_history: Vec<git::Commit>,
+    next: &git::Commit,
+    dev_commit_history: &[git::Commit],
 ) -> Option<git::Commit> {
-    let mut next_commit: Option<git::Commit> = None;
-    for commit in dev_commit_history.into_iter() {
+    let mut next_commit: Option<&git::Commit> = None;
+    for commit in dev_commit_history.iter() {
         if commit == next {
             break;
         };
         next_commit.replace(commit);
     }
-    next_commit
+    next_commit.cloned()
 }
 
 // advance main branch to the commit 'next'
 #[tracing::instrument(fields(next), skip_all)]
-pub async fn advance_main(
+pub fn advance_main(
     next: git::Commit,
     repo_details: &git::RepoDetails,
     repo_config: &config::RepoConfig,
     open_repository: &dyn git::repository::OpenRepositoryLike,
-) {
+) -> Result<()> {
     info!("Advancing main to next");
-    if let Err(err) = git::push::reset(
+    git::push::reset(
         open_repository,
         repo_details,
         &repo_config.branches().main(),
         &next.into(),
         &git::push::Force::No,
-    ) {
-        warn!(?err, "Failed")
-    };
+    )?;
+    Ok(())
+}
+
+pub type Result<T> = core::result::Result<T, Error>;
+#[derive(Debug, thiserror::Error, Display)]
+pub enum Error {
+    #[display("push: {}", 0)]
+    Push(#[from] git::push::Error),
+
+    #[display("no commits to advance next to")]
+    NextAtDev,
+
+    #[display("commit is a Work-in-progress")]
+    IsWorkInProgress,
+
+    #[display("commit message is not in conventional commit format: {reason}")]
+    InvalidCommitMessage { reason: String },
 }

crates/repo-actor/src/handlers.rs

@@ -0,0 +1,11 @@
+pub mod advance_main;
+pub mod advance_next;
+pub mod check_ci_status;
+pub mod clone_repo;
+pub mod load_config_from_repo;
+pub mod receive_ci_status;
+pub mod receive_repo_config;
+pub mod register_webhook;
+pub mod validate_repo;
+pub mod webhook_notification;
+pub mod webhook_registered;

crates/repo-actor/src/handlers/advance_main.rs

@@ -0,0 +1,50 @@
+//
+use crate as actor;
+use actix::prelude::*;
+
+impl Handler<actor::messages::AdvanceMain> for actor::RepoActor {
+    type Result = ();
+    #[tracing::instrument(name = "RepoActor::AdvanceMainTo", skip_all, fields(repo = %self.repo_details, commit = ?msg))]
+    fn handle(
+        &mut self,
+        msg: actor::messages::AdvanceMain,
+        ctx: &mut Self::Context,
+    ) -> Self::Result {
+        let Some(repo_config) = self.repo_details.repo_config.clone() else {
+            tracing::warn!("No config loaded");
+            return;
+        };
+        let Some(open_repository) = &self.open_repository else {
+            return;
+        };
+        let repo_details = self.repo_details.clone();
+        let addr = ctx.address();
+        let message_token = self.message_token;
+
+        match actor::branch::advance_main(
+            msg.unwrap(),
+            &repo_details,
+            &repo_config,
+            &**open_repository,
+        ) {
+            Err(err) => {
+                tracing::warn!("advance main: {err}");
+            }
+            Ok(_) => {
+                let log = self.log.clone();
+                match repo_config.source() {
+                    git_next_config::RepoConfigSource::Repo => {
+                        actor::do_send(addr, actor::messages::LoadConfigFromRepo, &log);
+                    }
+                    git_next_config::RepoConfigSource::Server => {
+                        actor::do_send(
+                            addr,
+                            actor::messages::ValidateRepo::new(message_token),
+                            &log,
+                        );
+                    }
+                }
+            }
+        }
+    }
+}

crates/repo-actor/src/handlers/advance_next.rs

@@ -0,0 +1,44 @@
+//
+use crate as actor;
+use actix::prelude::*;
+
+impl Handler<actor::messages::AdvanceNext> for actor::RepoActor {
+    type Result = ();
+
+    fn handle(
+        &mut self,
+        msg: actor::messages::AdvanceNext,
+        ctx: &mut Self::Context,
+    ) -> Self::Result {
+        let Some(repo_config) = &self.repo_details.repo_config else {
+            return;
+        };
+        let Some(open_repository) = &self.open_repository else {
+            return;
+        };
+        let (next_commit, dev_commit_history) = msg.unwrap();
+        let repo_details = self.repo_details.clone();
+        let repo_config = repo_config.clone();
+        let addr = ctx.address();
+
+        match actor::branch::advance_next(
+            &next_commit,
+            &dev_commit_history,
+            repo_details,
+            repo_config,
+            &**open_repository,
+            self.message_token,
+        ) {
+            Ok(message_token) => {
+                // pause to allow any CI checks to be started
+                std::thread::sleep(self.sleep_duration);
+                actor::do_send(
+                    addr,
+                    actor::messages::ValidateRepo::new(message_token),
+                    &self.log,
+                );
+            }
+            Err(err) => tracing::warn!("advance next: {err}"),
+        }
+    }
+}

crates/repo-actor/src/handlers/check_ci_status.rs

@@ -0,0 +1,34 @@
+//
+use crate as actor;
+use actix::prelude::*;
+use tracing::Instrument as _;
+
+impl Handler<actor::messages::CheckCIStatus> for actor::RepoActor {
+    type Result = ();
+
+    fn handle(
+        &mut self,
+        msg: actor::messages::CheckCIStatus,
+        ctx: &mut Self::Context,
+    ) -> Self::Result {
+        actor::logger(&self.log, "start: CheckCIStatus");
+        let addr = ctx.address();
+        let forge = self.forge.duplicate();
+        let next = msg.unwrap();
+        let log = self.log.clone();
+
+        // get the status - pass, fail, pending (all others map to fail, e.g. error)
+        async move {
+            let status = forge.commit_status(&next).await;
+            let _ = actor::send(
+                addr,
+                actor::messages::ReceiveCIStatus::new((next, status)),
+                &log,
+            )
+            .await;
+        }
+        .in_current_span()
+        .into_actor(self)
+        .wait(ctx);
+    }
+}

crates/repo-actor/src/handlers/clone_repo.rs

@@ -0,0 +1,45 @@
+//
+use actix::prelude::*;
+
+use crate as actor;
+use git_next_git as git;
+
+impl Handler<actor::messages::CloneRepo> for actor::RepoActor {
+    type Result = ();
+    #[tracing::instrument(name = "RepoActor::CloneRepo", skip_all, fields(repo = %self.repo_details /*, gitdir = %self.repo_details.gitdir */))]
+    fn handle(
+        &mut self,
+        _msg: actor::messages::CloneRepo,
+        ctx: &mut Self::Context,
+    ) -> Self::Result {
+        tracing::debug!("Handler: CloneRepo: start");
+        let gitdir = self.repo_details.gitdir.clone();
+        match git::repository::open(&*self.repository_factory, &self.repo_details, gitdir) {
+            Ok(repository) => {
+                actor::logger(&self.log, "open okay");
+                tracing::debug!("open okay");
+                self.open_repository.replace(repository);
+                if self.repo_details.repo_config.is_none() {
+                    tracing::debug!("Handler: CloneRepo: Sending: LoadConfigFromRepo");
+                    actor::logger(&self.log, "send: LoadConfigFromRepo");
+                    ctx.address().do_send(actor::messages::LoadConfigFromRepo);
+                } else {
+                    tracing::debug!("Handler: CloneRepo: Sending: ValidateRepo");
+                    actor::logger(&self.log, "send: ValidateRepo");
+                    if let Err(_e) = ctx
+                        .address()
+                        .try_send(actor::messages::ValidateRepo::new(self.message_token))
+                    {
+                        actor::logger(&self.log, format!("ValidateRepo: error: {_e:?}"));
+                    }
+                }
+            }
+            Err(err) => {
+                actor::logger(&self.log, "open failed");
+                tracing::debug!("err: {err:?}");
+                tracing::warn!("Could not open repo: {err}")
+            }
+        }
+        tracing::debug!("Handler: CloneRepo: finish");
+    }
+}

crates/repo-actor/src/handlers/load_config_from_repo.rs

@@ -0,0 +1,38 @@
+//
+use actix::prelude::*;
+use tracing::Instrument as _;
+
+use crate as actor;
+
+impl Handler<actor::messages::LoadConfigFromRepo> for actor::RepoActor {
+    type Result = ();
+    #[tracing::instrument(name = "RepoActor::LoadConfigFromRepo", skip_all, fields(repo = %self.repo_details))]
+    fn handle(
+        &mut self,
+        _msg: actor::messages::LoadConfigFromRepo,
+        ctx: &mut Self::Context,
+    ) -> Self::Result {
+        tracing::debug!("Handler: LoadConfigFromRepo: start");
+        let Some(open_repository) = &self.open_repository else {
+            return;
+        };
+        let open_repository = open_repository.duplicate();
+        let repo_details = self.repo_details.clone();
+        let addr = ctx.address();
+        let log = self.log.clone();
+        async move {
+            match actor::load::config_from_repository(repo_details, &*open_repository).await {
+                Ok(repo_config) => {
+                    actor::logger(&log, "send: LoadedConfig");
+                    addr.do_send(actor::messages::ReceiveRepoConfig::new(repo_config))
+                }
+                Err(err) => tracing::warn!(?err, "Failed to load config"),
+                // TODO: (#95) should notify user
+            }
+        }
+        .in_current_span()
+        .into_actor(self)
+        .wait(ctx);
+        tracing::debug!("Handler: LoadConfigFromRepo: finish");
+    }
+}

crates/repo-actor/src/handlers/receive_ci_status.rs

@@ -0,0 +1,42 @@
+//
+use crate as actor;
+use actix::prelude::*;
+use git_next_git as git;
+
+impl Handler<actor::messages::ReceiveCIStatus> for actor::RepoActor {
+    type Result = ();
+
+    fn handle(
+        &mut self,
+        msg: actor::messages::ReceiveCIStatus,
+        ctx: &mut Self::Context,
+    ) -> Self::Result {
+        let log = self.log.clone();
+        actor::logger(&log, "start: ReceiveCIStatus");
+        let addr = ctx.address();
+        let (next, status) = msg.unwrap();
+        let message_token = self.message_token;
+        let sleep_duration = self.sleep_duration;
+
+        tracing::debug!(?status, "");
+        match status {
+            git::forge::commit::Status::Pass => {
+                actor::do_send(addr, actor::messages::AdvanceMain::new(next), &self.log);
+            }
+            git::forge::commit::Status::Pending => {
+                std::thread::sleep(sleep_duration);
+                actor::do_send(
+                    addr,
+                    actor::messages::ValidateRepo::new(message_token),
+                    &self.log,
+                );
+            }
+            git::forge::commit::Status::Fail => {
+                tracing::warn!("Checks have failed");
+                // TODO: (#95) test: repo with next ahead of main and failing CI should notify user
+                // TODO: (#88) recheck after a longer than normal delay
+                actor::logger(&log, "send: nothing"); // replace with messages to send notification and revalidate later
+            }
+        }
+    }
+}

crates/repo-actor/src/handlers/receive_repo_config.rs

@@ -0,0 +1,29 @@
+//
+use actix::prelude::*;
+
+use crate as actor;
+
+impl Handler<actor::messages::ReceiveRepoConfig> for actor::RepoActor {
+    type Result = ();
+    #[tracing::instrument(name = "RepoActor::ReceiveRepoConfig", skip_all, fields(repo = %self.repo_details, branches = ?msg))]
+    fn handle(
+        &mut self,
+        msg: actor::messages::ReceiveRepoConfig,
+        ctx: &mut Self::Context,
+    ) -> Self::Result {
+        let repo_config = msg.unwrap();
+        self.repo_details.repo_config.replace(repo_config);
+
+        actor::do_send(
+            ctx.address(),
+            actor::messages::ValidateRepo::new(self.message_token),
+            &self.log,
+        );
+
+        actor::do_send(
+            ctx.address(),
+            actor::messages::RegisterWebhook::new(),
+            &self.log,
+        );
+    }
+}

crates/repo-actor/src/handlers/register_webhook.rs

@@ -0,0 +1,39 @@
+//
+use actix::prelude::*;
+use tracing::Instrument as _;
+
+use crate as actor;
+use actor::{messages::RegisterWebhook, RepoActor};
+
+impl Handler<RegisterWebhook> for RepoActor {
+    type Result = ();
+
+    fn handle(&mut self, _msg: RegisterWebhook, ctx: &mut Self::Context) -> Self::Result {
+        if self.webhook_id.is_none() {
+            let forge_alias = self.repo_details.forge.forge_alias();
+            let repo_alias = &self.repo_details.repo_alias;
+            let webhook_url = self.webhook.url(forge_alias, repo_alias);
+            let forge = self.forge.duplicate();
+            let addr = ctx.address();
+            let log = self.log.clone();
+            tracing::debug!("registering webhook");
+            async move {
+                match forge.register_webhook(&webhook_url).await {
+                    Ok(registered_webhook) => {
+                        tracing::debug!(?registered_webhook, "");
+                        actor::do_send(
+                            addr,
+                            actor::messages::WebhookRegistered::from(registered_webhook),
+                            &log,
+                        );
+                    }
+                    Err(err) => tracing::warn!(?err, "registering webhook"),
+                }
+            }
+            .in_current_span()
+            .into_actor(self)
+            .wait(ctx);
+            tracing::debug!("registering webhook done");
+        }
+    }
+}

crates/repo-actor/src/handlers/validate_repo.rs

@@ -0,0 +1,119 @@
+//
+use actix::prelude::*;
+use derive_more::Deref as _;
+use tracing::Instrument as _;
+
+use crate::{self as actor, messages::MessageToken};
+use git_next_git as git;
+
+impl Handler<actor::messages::ValidateRepo> for actor::RepoActor {
+    type Result = ();
+    #[tracing::instrument(name = "RepoActor::ValidateRepo", skip_all, fields(repo = %self.repo_details, token = %msg.deref()))]
+    fn handle(
+        &mut self,
+        msg: actor::messages::ValidateRepo,
+        ctx: &mut Self::Context,
+    ) -> Self::Result {
+        actor::logger(&self.log, "start: ValidateRepo");
+
+        // Message Token - make sure we are only triggered for the latest/current token
+        match self.token_status(msg.unwrap()) {
+            TokenStatus::Current => {} // do nothing
+            TokenStatus::Expired => {
+                actor::logger(
+                    &self.log,
+                    format!("discarded: old message token: {}", self.message_token),
+                );
+                return; // message is expired
+            }
+            TokenStatus::New(message_token) => {
+                self.message_token = message_token;
+                actor::logger(
+                    &self.log,
+                    format!("new message token: {}", self.message_token),
+                );
+            }
+        }
+        actor::logger(&self.log, format!("accepted token: {}", self.message_token));
+
+        // Repository positions
+        let Some(ref open_repository) = self.open_repository else {
+            return;
+        };
+        let Some(repo_config) = self.repo_details.repo_config.clone() else {
+            return;
+        };
+
+        match git::validation::positions::validate_positions(
+            &**open_repository,
+            &self.repo_details,
+            repo_config,
+        ) {
+            Ok(git::validation::positions::Positions {
+                main,
+                next,
+                dev,
+                dev_commit_history,
+            }) => {
+                if next != main {
+                    actor::do_send(
+                        ctx.address(),
+                        actor::messages::CheckCIStatus::new(next),
+                        &self.log,
+                    );
+                } else if next != dev {
+                    actor::do_send(
+                        ctx.address(),
+                        actor::messages::AdvanceNext::new((next, dev_commit_history)),
+                        &self.log,
+                    )
+                } else {
+                    // do nothing
+                }
+            }
+            Err(err) => {
+                actor::logger(
+                    &self.log,
+                    format!("invalid positions: {err:?} will sleep then retry"),
+                );
+                tracing::warn!("Error: {err:?}");
+                let addr = ctx.address();
+                let message_token = self.message_token;
+                let sleep_duration = self.sleep_duration;
+                let log = self.log.clone();
+                async move {
+                    tracing::debug!("sleeping before retrying...");
+                    tokio::time::sleep(sleep_duration).await;
+                    actor::do_send(
+                        addr,
+                        actor::messages::ValidateRepo::new(message_token),
+                        &log,
+                    );
+                }
+                .in_current_span()
+                .into_actor(self)
+                .wait(ctx);
+            }
+        }
+
+        tracing::debug!("Handler: ValidateRepo: finish");
+    }
+}
+
+enum TokenStatus {
+    Current,
+    Expired,
+    New(MessageToken),
+}
+impl actor::RepoActor {
+    fn token_status(&self, new: MessageToken) -> TokenStatus {
+        let current = &self.message_token;
+        if &new > current {
+            return TokenStatus::New(new);
+        }
+        if current > &new {
+            return TokenStatus::Expired;
+        }
+        TokenStatus::Current
+    }
+}

crates/repo-actor/src/handlers/webhook_notification.rs

@@ -1,18 +1,18 @@
 //
 use actix::prelude::*;
 
-use crate::{RepoActor, ValidateRepo};
+use crate::{self as actor, messages::WebhookNotification};
 use git_next_config as config;
 use git_next_git as git;
 
 use tracing::{info, warn};
 
-impl Handler<config::WebhookMessage> for RepoActor {
+impl Handler<WebhookNotification> for actor::RepoActor {
     type Result = ();
 
     #[allow(clippy::cognitive_complexity)] // TODO: (#49) reduce complexity
     #[tracing::instrument(name = "RepoActor::WebhookMessage", skip_all, fields(token = %self.message_token, repo = %self.repo_details))]
-    fn handle(&mut self, msg: config::WebhookMessage, ctx: &mut Self::Context) -> Self::Result {
+    fn handle(&mut self, msg: WebhookNotification, ctx: &mut Self::Context) -> Self::Result {
         let Some(expected_authorization) = &self.webhook_auth else {
             warn!("Don't know what authorization to expect");
             return;
@@ -88,6 +88,7 @@ impl Handler<config::WebhookMessage> for RepoActor {
             token = %message_token,
             "New commit"
         );
-        ctx.address().do_send(ValidateRepo { message_token });
+        ctx.address()
+            .do_send(actor::messages::ValidateRepo::new(message_token));
     }
 }

crates/repo-actor/src/handlers/webhook_registered.rs

@@ -0,0 +1,17 @@
+//
+use actix::prelude::*;
+
+use crate as actor;
+
+impl Handler<actor::messages::WebhookRegistered> for actor::RepoActor {
+    type Result = ();
+    #[tracing::instrument(name = "RepoActor::WebhookRegistered", skip_all, fields(repo = %self.repo_details, webhook_id = %msg.webhook_id()))]
+    fn handle(
+        &mut self,
+        msg: actor::messages::WebhookRegistered,
+        _ctx: &mut Self::Context,
+    ) -> Self::Result {
+        self.webhook_id.replace(msg.webhook_id().clone());
+        self.webhook_auth.replace(msg.webhook_auth().clone());
+    }
+}

crates/repo-actor/src/lib.rs

@@ -1,30 +1,59 @@
 mod branch;
+pub mod handlers;
 mod load;
-pub mod status;
-pub mod webhook;
+pub mod messages;
 
 #[cfg(test)]
 mod tests;
 
-use std::time::Duration;
-
 use actix::prelude::*;
-use config::RegisteredWebhook;
-use git::validation::positions::{validate_positions, Positions};
 
-use crate as repo_actor;
 use git_next_config as config;
-use git_next_forge as forge;
 use git_next_git as git;
 
 use kxio::network::Network;
-use tracing::{debug, info, warn, Instrument};
+use tracing::{info, warn, Instrument};
 
+pub type RepoActorLog = std::sync::Arc<std::sync::Mutex<Vec<String>>>;
+
+/// An actor that represents a Git Repository.
+///
+/// When this actor is started it is sent the [CloneRepo] message.
+///
+/// ```mermaid
+/// stateDiagram-v2
+/// [*] --> CloneRepo :START
+///
+/// CloneRepo --> LoadConfigFromRepo
+/// CloneRepo --> ValidateRepo
+///
+/// LoadConfigFromRepo --> LoadedConfig
+///
+/// ValidateRepo --> WebhookRegistered
+/// ValidateRepo --> StartMonitoring
+/// ValidateRepo --> ValidateRepo :SLEEP 10s
+///
+/// LoadedConfig --> ValidateRepo
+///
+/// WebhookRegistered --> [*]
+///
+/// StartMonitoring --> AdvanceMainTo
+/// StartMonitoring --> ValidateRepo :SLEEP 10s
+///
+/// AdvanceMainTo --> LoadConfigFromRepo
+/// AdvanceMainTo --> ValidateRepo
+///
+/// [*] --> WebhookMessage :WEBHOOK
+///
+/// WebhookMessage --> ValidateRepo
+/// ```
+///
 #[derive(Debug, derive_more::Display)]
 #[display("{}:{}:{}", generation, repo_details.forge.forge_alias(), repo_details.repo_alias)]
 pub struct RepoActor {
+    sleep_duration: std::time::Duration,
     generation: git::Generation,
-    message_token: MessageToken,
+    message_token: messages::MessageToken,
     repo_details: git::RepoDetails,
     webhook: config::server::Webhook,
     webhook_id: Option<config::WebhookId>, // INFO: if [None] then no webhook is configured
@@ -32,47 +61,74 @@ pub struct RepoActor {
     last_main_commit: Option<git::Commit>,
     last_next_commit: Option<git::Commit>,
     last_dev_commit: Option<git::Commit>,
-    repository: Box<dyn git::repository::RepositoryFactory>,
+    repository_factory: Box<dyn git::repository::RepositoryFactory>,
     open_repository: Option<Box<dyn git::repository::OpenRepositoryLike>>,
     net: Network,
-    forge: forge::Forge,
+    forge: Box<dyn git::ForgeLike>,
+    log: Option<RepoActorLog>,
 }
 impl RepoActor {
     pub fn new(
-        details: git::RepoDetails,
+        repo_details: git::RepoDetails,
+        forge: Box<dyn git::ForgeLike>,
         webhook: config::server::Webhook,
         generation: git::Generation,
         net: Network,
-        repository: Box<dyn git::repository::RepositoryFactory>,
+        repository_factory: Box<dyn git::repository::RepositoryFactory>,
+        sleep_duration: std::time::Duration,
     ) -> Self {
-        let forge = forge::Forge::new(details.clone(), net.clone());
-        debug!(?forge, "new");
+        let message_token = messages::MessageToken::default();
         Self {
             generation,
-            message_token: MessageToken::new(),
-            repo_details: details,
+            message_token,
+            repo_details,
             webhook,
             webhook_id: None,
             webhook_auth: None,
             last_main_commit: None,
             last_next_commit: None,
             last_dev_commit: None,
-            repository,
+            repository_factory,
             open_repository: None,
-            net,
             forge,
+            net,
+            sleep_duration,
+            log: None,
         }
     }
 }
+
+#[cfg(test)]
+impl RepoActor {
+    pub fn with_log(mut self, log: RepoActorLog) -> Self {
+        self.log = Some(log);
+        self
+    }
+
+    pub fn with_open_repository(
+        mut self,
+        open_repository: Box<dyn git::repository::OpenRepositoryLike>,
+    ) -> Self {
+        self.open_repository.replace(open_repository);
+        self
+    }
+
+    pub const fn with_message_token(mut self, message_token: messages::MessageToken) -> Self {
+        self.message_token = message_token;
+        self
+    }
+}
 impl Actor for RepoActor {
     type Context = Context<Self>;
     #[tracing::instrument(name = "RepoActor::stopping", skip_all, fields(repo = %self.repo_details))]
     fn stopping(&mut self, ctx: &mut Self::Context) -> Running {
+        tracing::debug!("stopping");
         info!("Checking webhook");
         match self.webhook_id.take() {
             Some(webhook_id) => {
+                tracing::warn!("stopping - unregistering webhook");
                 info!(%webhook_id, "Unregistring webhook");
-                let forge = self.forge.clone();
+                let forge = self.forge.duplicate();
                 async move {
                     if let Err(err) = forge.unregister_webhook(&webhook_id).await {
                         warn!("unregistering webhook: {err}");
@@ -88,259 +144,38 @@ impl Actor for RepoActor {
     }
 }
 
-#[derive(Message)]
-#[rtype(result = "()")]
-pub struct CloneRepo;
-impl Handler<CloneRepo> for RepoActor {
-    type Result = ();
-    #[tracing::instrument(name = "RepoActor::CloneRepo", skip_all, fields(repo = %self.repo_details /*, gitdir = %self.repo_details.gitdir */))]
-    fn handle(&mut self, _msg: CloneRepo, ctx: &mut Self::Context) -> Self::Result {
-        let gitdir = self.repo_details.gitdir.clone();
-        match git::repository::open(&*self.repository, &self.repo_details, gitdir) {
-            Ok(repository) => {
-                self.open_repository.replace(repository);
-                if self.repo_details.repo_config.is_none() {
-                    ctx.address().do_send(LoadConfigFromRepo);
-                } else {
-                    ctx.address().do_send(ValidateRepo {
-                        message_token: self.message_token,
-                    });
-                }
-            }
-            Err(err) => warn!("Could not open repo: {err}"),
-        }
-    }
+pub fn do_send<M>(_addr: Addr<RepoActor>, msg: M, log: &Option<crate::RepoActorLog>)
+where
+    M: actix::Message + Send + 'static + std::fmt::Debug,
+    RepoActor: actix::Handler<M>,
+    <M as actix::Message>::Result: Send,
+{
+    let log_message = format!("send: {:?}", msg);
+    tracing::debug!(log_message);
+    logger(log, log_message);
+    #[cfg(not(test))]
+    _addr.do_send(msg)
 }
 
-#[derive(Message)]
-#[rtype(result = "()")]
-pub struct LoadConfigFromRepo;
-impl Handler<LoadConfigFromRepo> for RepoActor {
-    type Result = ();
-    #[tracing::instrument(name = "RepoActor::LoadConfigFromRepo", skip_all, fields(repo = %self.repo_details))]
-    fn handle(&mut self, _msg: LoadConfigFromRepo, ctx: &mut Self::Context) -> Self::Result {
-        let details = self.repo_details.clone();
-        let addr = ctx.address();
-        let Some(open_repository) = &self.open_repository else {
-            warn!("missing open repository - can't load configuration");
-            return;
-        };
-        let open_repository = open_repository.duplicate();
-        async move { repo_actor::load::load_file(details, addr, &*open_repository).await }
-            .in_current_span()
-            .into_actor(self)
-            .wait(ctx)
-    }
+pub async fn send<M>(
+    addr: Addr<RepoActor>,
+    msg: M,
+    log: &Option<crate::RepoActorLog>,
+) -> std::result::Result<<M as actix::Message>::Result, actix::MailboxError>
+where
+    M: actix::Message + Send + 'static + std::fmt::Debug,
+    RepoActor: actix::Handler<M>,
+    <M as actix::Message>::Result: Send,
+{
+    let log_message = format!("send: {:?}", msg);
+    logger(log, log_message);
+    addr.send(msg).await
 }
 
-#[derive(Message)]
-#[rtype(result = "()")]
-struct LoadedConfig(git_next_config::RepoConfig);
-impl Handler<LoadedConfig> for RepoActor {
-    type Result = ();
-    #[tracing::instrument(name = "RepoActor::LoadedConfig", skip_all, fields(repo = %self.repo_details, branches = %msg.0))]
-    fn handle(&mut self, msg: LoadedConfig, ctx: &mut Self::Context) -> Self::Result {
-        let repo_config = msg.0;
-        self.repo_details.repo_config.replace(repo_config);
-
-        ctx.address().do_send(ValidateRepo {
-            message_token: self.message_token,
-        });
-    }
-}
-
-#[derive(derive_more::Constructor, Message)]
-#[rtype(result = "()")]
-pub struct ValidateRepo {
-    message_token: MessageToken,
-}
-impl Handler<ValidateRepo> for RepoActor {
-    type Result = ();
-    #[tracing::instrument(name = "RepoActor::ValidateRepo", skip_all, fields(repo = %self.repo_details, token = %msg.message_token))]
-    fn handle(&mut self, msg: ValidateRepo, ctx: &mut Self::Context) -> Self::Result {
-        match msg.message_token {
-            message_token if self.message_token < message_token => {
-                info!(%message_token, "New message token");
-                self.message_token = msg.message_token;
-            }
-            message_token if self.message_token > message_token => {
-                info!("Dropping message from previous generation");
-                return; // message is expired
-            }
-            _ => {
-                // do nothing
-            }
-        }
-        if self.webhook_id.is_none() {
-            let forge_alias = self.repo_details.forge.forge_alias();
-            let repo_alias = &self.repo_details.repo_alias;
-            let webhook_url = self.webhook.url(forge_alias, repo_alias);
-            let forge = self.forge.clone();
-            let addr = ctx.address();
-            async move {
-                if let Err(err) =
-                    forge
-                        .register_webhook(&webhook_url)
-                        .await
-                        .and_then(|registered_webhook| {
-                            addr.try_send(WebhookRegistered::from(registered_webhook))
-                                .map_err(|e| {
-                                    git::forge::webhook::Error::FailedToNotifySelf(e.to_string())
-                                })
-                        })
-                {
-                    warn!("registering webhook: {err}");
-                }
-            }
-            .in_current_span()
-            .into_actor(self)
-            .wait(ctx);
-        }
-        if let (Some(open_repository), Some(repo_config)) =
-            (&self.open_repository, self.repo_details.repo_config.clone())
-        {
-            let repo_details = self.repo_details.clone();
-            let addr = ctx.address();
-            let message_token = self.message_token;
-            let open_repository = open_repository.duplicate();
-            async move {
-                match validate_positions(&*open_repository, &repo_details, repo_config) {
-                    Ok(Positions {
-                        main,
-                        next,
-                        dev,
-                        dev_commit_history,
-                    }) => {
-                        addr.do_send(StartMonitoring::new(main, next, dev, dev_commit_history));
-                    }
-                    Err(err) => {
-                        warn!("{:?}", err);
-                        tokio::time::sleep(Duration::from_secs(10)).await;
-                        addr.do_send(ValidateRepo::new(message_token));
-                    }
-                }
-            }
-            .in_current_span()
-            .into_actor(self)
-            .wait(ctx);
-        }
-    }
-}
-
-#[derive(Debug, derive_more::Constructor, Message)]
-#[rtype(result = "()")]
-pub struct StartMonitoring {
-    main: git::Commit,
-    next: git::Commit,
-    dev: git::Commit,
-    dev_commit_history: Vec<git::Commit>,
-}
-impl Handler<StartMonitoring> for RepoActor {
-    type Result = ();
-    #[tracing::instrument(name = "RepoActor::StartMonitoring", skip_all, 
-        fields(token = %self.message_token, repo = %self.repo_details, main = %msg.main, next= %msg.next, dev = %msg.dev))
-    ]
-    fn handle(&mut self, msg: StartMonitoring, ctx: &mut Self::Context) -> Self::Result {
-        let Some(repo_config) = self.repo_details.repo_config.clone() else {
-            warn!("No config loaded");
-            return;
-        };
-
-        let next_ahead_of_main = msg.main != msg.next;
-        let dev_ahead_of_next = msg.next != msg.dev;
-        info!(next_ahead_of_main, dev_ahead_of_next, "StartMonitoring");
-
-        let addr = ctx.address();
-        let forge = self.forge.clone();
-
-        if next_ahead_of_main {
-            status::check_next(msg.next, addr, forge, self.message_token)
-                .in_current_span()
-                .into_actor(self)
-                .wait(ctx);
-        } else if dev_ahead_of_next {
-            if let Some(open_repository) = &self.open_repository {
-                let open_repository = open_repository.duplicate();
-                let repo_details = self.repo_details.clone();
-                let message_token = self.message_token;
-                async move {
-                    branch::advance_next(
-                        msg.next,
-                        msg.dev_commit_history,
-                        repo_details,
-                        repo_config,
-                        &*open_repository,
-                        addr,
-                        message_token,
-                    )
-                    .await
-                }
-                .in_current_span()
-                .into_actor(self)
-                .wait(ctx);
-            }
-        }
-    }
-}
-
-#[derive(Message)]
-#[rtype(result = "()")]
-pub struct WebhookRegistered(config::WebhookId, config::WebhookAuth);
-impl From<RegisteredWebhook> for WebhookRegistered {
-    fn from(value: RegisteredWebhook) -> Self {
-        Self(value.id().clone(), value.auth().clone())
-    }
-}
-impl Handler<WebhookRegistered> for RepoActor {
-    type Result = ();
-    #[tracing::instrument(name = "RepoActor::WebhookRegistered", skip_all, fields(repo = %self.repo_details, webhook_id = %msg.0))]
-    fn handle(&mut self, msg: WebhookRegistered, _ctx: &mut Self::Context) -> Self::Result {
-        self.webhook_id.replace(msg.0);
-        self.webhook_auth.replace(msg.1);
-    }
-}
-
-#[derive(Message)]
-#[rtype(result = "()")]
-pub struct AdvanceMainTo(git::Commit);
-impl Handler<AdvanceMainTo> for RepoActor {
-    type Result = ();
-    #[tracing::instrument(name = "RepoActor::AdvanceMainTo", skip_all, fields(repo = %self.repo_details, commit = %msg.0))]
-    fn handle(&mut self, msg: AdvanceMainTo, ctx: &mut Self::Context) -> Self::Result {
-        let Some(repo_config) = self.repo_details.repo_config.clone() else {
-            warn!("No config loaded");
-            return;
-        };
-        let Some(open_repository) = &self.open_repository else {
-            warn!("No repository opened");
-            return;
-        };
-        let repo_details = self.repo_details.clone();
-        let addr = ctx.address();
-        let message_token = self.message_token;
-        let open_repository = open_repository.duplicate();
-        async move {
-            branch::advance_main(msg.0, &repo_details, &repo_config, &*open_repository).await;
-            match repo_config.source() {
-                git_next_config::RepoConfigSource::Repo => addr.do_send(LoadConfigFromRepo),
-                git_next_config::RepoConfigSource::Server => {
-                    addr.do_send(ValidateRepo { message_token })
-                }
-            }
-        }
-        .in_current_span()
-        .into_actor(self)
-        .wait(ctx);
-    }
-}
-
-#[derive(Copy, Clone, Default, Debug, PartialEq, Eq, PartialOrd, Ord, derive_more::Display)]
-pub struct MessageToken(u32);
-impl MessageToken {
-    pub fn new() -> Self {
-        Self::default()
-    }
-    pub const fn next(&self) -> Self {
-        Self(self.0 + 1)
+pub fn logger(log: &Option<crate::RepoActorLog>, message: impl Into<String>) {
+    if let Some(log) = log {
+        let message: String = message.into();
+        tracing::debug!(message);
+        let _ = log.lock().map(|mut l| l.push(message));
     }
 }

crates/repo-actor/src/load.rs

@@ -1,75 +1,54 @@
-use std::path::PathBuf;
-
 //
-use actix::prelude::*;
-
-use tracing::{error, info};
+use derive_more::Display;
+use std::path::PathBuf;
+use tracing::info;
 
 use git_next_config as config;
 use git_next_git as git;
 
-use super::{LoadedConfig, RepoActor};
-
 /// Loads the [RepoConfig] from the `.git-next.toml` file in the repository
 #[tracing::instrument(skip_all, fields(branch = %repo_details.branch))]
-pub async fn load_file(
+pub async fn config_from_repository(
     repo_details: git::RepoDetails,
-    addr: Addr<RepoActor>,
     open_repository: &dyn git::repository::OpenRepositoryLike,
-) {
+) -> Result<config::RepoConfig> {
     info!("Loading .git-next.toml from repo");
-    let repo_config = match load(&repo_details, open_repository).await {
-        Ok(repo_config) => repo_config,
-        Err(err) => {
-            error!(?err, "Failed to load config");
-            return;
-        }
-    };
-    info!("Loaded .git-next.toml from repo");
-    addr.do_send(LoadedConfig(repo_config));
-}
-
-async fn load(
-    details: &git::RepoDetails,
-    open_repository: &dyn git::repository::OpenRepositoryLike,
-) -> Result<config::RepoConfig, Error> {
-    let contents = open_repository.read_file(&details.branch, &PathBuf::from(".git-next.toml"))?;
+    let contents =
+        open_repository.read_file(&repo_details.branch, &PathBuf::from(".git-next.toml"))?;
     let config = config::RepoConfig::parse(&contents)?;
-    let config = validate(config, open_repository).await?;
+    let branches = open_repository.remote_branches()?;
+    required_branch(&config.branches().main(), &branches)?;
+    required_branch(&config.branches().next(), &branches)?;
+    required_branch(&config.branches().dev(), &branches)?;
     Ok(config)
 }
 
-#[derive(Debug, derive_more::From, derive_more::Display)]
+fn required_branch(
+    branch_name: &config::BranchName,
+    branches: &[config::BranchName],
+) -> Result<()> {
+    branches
+        .iter()
+        .find(|branch| *branch == branch_name)
+        .ok_or_else(|| Error::BranchNotFound(branch_name.clone()))?;
+    Ok(())
+}
+
+pub type Result<T> = core::result::Result<T, Error>;
+#[derive(Debug, thiserror::Error, Display)]
 pub enum Error {
-    File(git::file::Error),
-    Config(config::server::Error),
-    Toml(toml::de::Error),
-    Branch(git::push::Error),
+    #[display("file")]
+    File(#[from] git::file::Error),
+
+    #[display("config")]
+    Config(#[from] config::server::Error),
+
+    #[display("toml")]
+    Toml(#[from] toml::de::Error),
+
+    #[display("push")]
+    Push(#[from] git::push::Error),
+
+    #[display("branch not found: {}", 0)]
     BranchNotFound(config::BranchName),
 }
-
-pub async fn validate(
-    config: config::RepoConfig,
-    open_repository: &dyn git::repository::OpenRepositoryLike,
-) -> Result<config::RepoConfig, Error> {
-    let branches = open_repository.remote_branches()?;
-    if !branches
-        .iter()
-        .any(|branch| branch == &config.branches().main())
-    {
-        return Err(Error::BranchNotFound(config.branches().main()));
-    }
-    if !branches
-        .iter()
-        .any(|branch| branch == &config.branches().next())
-    {
-        return Err(Error::BranchNotFound(config.branches().next()));
-    }
-    if !branches
-        .iter()
-        .any(|branch| branch == &config.branches().dev())
-    {
-        return Err(Error::BranchNotFound(config.branches().dev()));
-    }
-    Ok(config)
-}

crates/repo-actor/src/messages.rs

@@ -0,0 +1,70 @@
+//
+use config::newtype;
+use derive_more::Display;
+
+use git_next_config as config;
+use git_next_git as git;
+
+#[macro_export]
+macro_rules! message {
+    ($name:ident wraps $value:ty) => {
+        git_next_config::newtype!($name is a $value);
+        impl actix::prelude::Message for $name {
+            type Result = ();
+        }
+    };
+    ($name:ident) => {
+        git_next_config::newtype!($name);
+        impl actix::prelude::Message for $name {
+            type Result = ();
+        }
+    };
+    ($name:ident wraps $value:ty => $result:ty) => {
+        git_next_config::newtype!($name is a $value);
+        impl actix::prelude::Message for $name {
+            type Result = $result;
+        }
+    };
+    ($name:ident => $result:ty) => {
+        git_next_config::newtype!($name);
+        impl actix::prelude::Message for $name {
+            type Result = $result;
+        }
+    };
+}
+
+message!(LoadConfigFromRepo);
+message!(CloneRepo);
+message!(ReceiveRepoConfig wraps config::RepoConfig);
+message!(ValidateRepo wraps MessageToken);
+
+message!(WebhookRegistered wraps (config::WebhookId, config::WebhookAuth));
+impl WebhookRegistered {
+    pub const fn webhook_id(&self) -> &config::WebhookId {
+        &self.0 .0
+    }
+    pub const fn webhook_auth(&self) -> &config::WebhookAuth {
+        &self.0 .1
+    }
+}
+impl From<config::RegisteredWebhook> for WebhookRegistered {
+    fn from(value: config::RegisteredWebhook) -> Self {
+        let webhook_id = value.id().clone();
+        let webhook_auth = value.auth().clone();
+        Self::from((webhook_id, webhook_auth))
+    }
+}
+
+newtype!(MessageToken is a u32, Copy, Default, Display);
+impl MessageToken {
+    pub const fn next(&self) -> Self {
+        Self(self.0 + 1)
+    }
+}
+
+message!(RegisterWebhook);
+message!(CheckCIStatus wraps git::Commit); // next commit
+message!(ReceiveCIStatus wraps (git::Commit, git::forge::commit::Status)); // commit and it's status
+message!(AdvanceNext wraps (git::Commit, Vec<git::Commit>)); // next commit and the dev commit history
+message!(AdvanceMain wraps git::Commit); // next commit
+message!(WebhookNotification wraps config::webhook::forge_notification::ForgeNotification);

crates/repo-actor/src/status.rs

@@ -1,33 +0,0 @@
-//
-use actix::prelude::*;
-
-use git_next_forge as forge;
-use git_next_git as git;
-use tracing::{info, warn};
-
-use crate::{MessageToken, ValidateRepo};
-
-use super::AdvanceMainTo;
-
-pub async fn check_next(
-    next: git::Commit,
-    addr: Addr<super::RepoActor>,
-    forge: forge::Forge,
-    message_token: MessageToken,
-) {
-    // get the status - pass, fail, pending (all others map to fail, e.g. error)
-    let status = forge.commit_status(&next).await;
-    info!(?status, "Checking next branch");
-    match status {
-        git::forge::commit::Status::Pass => {
-            addr.do_send(AdvanceMainTo(next));
-        }
-        git::forge::commit::Status::Pending => {
-            tokio::time::sleep(tokio::time::Duration::from_secs(10)).await;
-            addr.do_send(ValidateRepo { message_token });
-        }
-        git::forge::commit::Status::Fail => {
-            warn!("Checks have failed");
-        }
-    }
-}

crates/repo-actor/src/tests.rs

@@ -1,34 +1,40 @@
 //
-use super::*;
-mod branch {
-    use super::super::branch::*;
-    use super::*;
+#![allow(unused_imports)] // TODO remove this
 
-    #[actix_rt::test]
-    async fn test_find_next_commit_on_dev() {
-        let next = git::Commit::new(
-            git::commit::Sha::new("current-next".to_string()),
-            git::commit::Message::new("foo".to_string()),
-        );
-        let expected = git::Commit::new(
-            git::commit::Sha::new("dev-next".to_string()),
-            git::commit::Message::new("next-should-go-here".to_string()),
-        );
-        let dev_commit_history = vec![
-            git::Commit::new(
-                git::commit::Sha::new("dev".to_string()),
-                git::commit::Message::new("future".to_string()),
-            ),
-            expected.clone(),
-            next.clone(),
-            git::Commit::new(
-                git::commit::Sha::new("current-main".to_string()),
-                git::commit::Message::new("history".to_string()),
-            ),
-        ];
+use crate as actor;
+use actix::prelude::*;
+use actor::{
+    messages::{CloneRepo, MessageToken, WebhookRegistered},
+    RepoActor, RepoActorLog,
+};
+use assert2::let_assert;
+use config::{BranchName, RegisteredWebhook, RepoBranches, RepoConfig};
+use git::{
+    repository::{
+        open::MockOpenRepositoryLike, Direction, MockRepositoryFactory, RepositoryFactory,
+    },
+    validation::remotes,
+    GitRemote, RepoDetails,
+};
+use git_next_config as config;
+use git_next_forge as forge;
+use git_next_git as git;
+use mockall::predicate::eq;
+use std::{
+    borrow::{Borrow, BorrowMut},
+    cell::{Cell, RefCell},
+    collections::HashMap,
+    path::PathBuf,
+    rc::Rc,
+    sync::{atomic::AtomicBool, Arc, Mutex},
+};
 
-        let next_commit = find_next_commit_on_dev(next, dev_commit_history);
+type TestResult = Result<(), Box<dyn std::error::Error>>;
 
-        assert_eq!(next_commit, Some(expected), "Found the wrong commit");
-    }
-}
+mod branch;
+mod expect;
+pub mod given;
+mod handlers;
+mod load;
+pub mod then;
+mod when;

crates/repo-actor/src/tests/branch.rs

@@ -0,0 +1,21 @@
+//
+use super::*;
+
+mod advance_main;
+mod advance_next;
+
+#[actix_rt::test]
+async fn test_find_next_commit_on_dev() {
+    let next = given::a_commit();
+    let expected = given::a_commit();
+    let dev_commit_history = vec![
+        given::a_commit(), // dev HEAD
+        expected.clone(),
+        next.clone(),      // next - advancing towards dev HEAD
+        given::a_commit(), // parent of next
+    ];
+
+    let next_commit = actor::branch::find_next_commit_on_dev(&next, &dev_commit_history);
+
+    assert_eq!(next_commit, Some(expected), "Found the wrong commit");
+}

crates/repo-actor/src/tests/branch/advance_main.rs

@@ -0,0 +1,35 @@
+//
+use git::repository::{OnFetch, OnPush, OpenRepositoryLike};
+
+use super::*;
+
+#[test]
+fn push_is_error_should_error() {
+    let commit = given::a_commit();
+    let fs = given::a_filesystem();
+    let repo_config = given::a_repo_config();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    expect::fetch_ok(&mut open_repository);
+    expect::push(&mut open_repository, Err(git::push::Error::Lock));
+    let_assert!(
+        Err(err) =
+            actor::branch::advance_main(commit, &repo_details, &repo_config, &open_repository)
+    );
+    assert!(matches!(
+        err,
+        actor::branch::Error::Push(git::push::Error::Lock)
+    ));
+}
+
+#[test]
+fn push_is_ok_should_ok() {
+    let commit = given::a_commit();
+    let fs = given::a_filesystem();
+    let repo_config = given::a_repo_config();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    expect::fetch_ok(&mut open_repository);
+    expect::push_ok(&mut open_repository);
+    assert!(
+        actor::branch::advance_main(commit, &repo_details, &repo_config, &open_repository).is_ok()
+    );
+}

crates/repo-actor/src/tests/branch/advance_next.rs

@@ -0,0 +1,165 @@
+//
+use super::*;
+mod when_at_dev {
+    // next and dev branches are the same
+    use super::*;
+    #[test]
+    fn should_not_push() -> TestResult {
+        let next = given::a_commit();
+        let dev_commit_history = &[next.clone()];
+        let fs = given::a_filesystem();
+        let repo_config = given::a_repo_config();
+        let (open_repository, repo_details) = given::an_open_repository(&fs);
+        // no on_push defined - so any call to push will cause an error
+        let message_token = given::a_message_token();
+        let_assert!(
+            Err(err) = actor::branch::advance_next(
+                &next,
+                dev_commit_history,
+                repo_details,
+                repo_config,
+                &open_repository,
+                message_token,
+            )
+        );
+        tracing::debug!("Got: {err}");
+        assert!(matches!(err, actor::branch::Error::NextAtDev));
+        Ok(())
+    }
+}
+mod can_advance {
+    // dev has at least one commit ahead of next
+    use super::*;
+    mod to_wip_commit {
+        // commit on dev is either invalid message or a WIP
+        use super::*;
+        #[test]
+        fn should_not_push() -> TestResult {
+            let next = given::a_commit();
+            let dev = given::a_commit_with_message("wip: test: message".to_string());
+            let dev_commit_history = &[dev, next.clone()];
+            let fs = given::a_filesystem();
+            let repo_config = given::a_repo_config();
+            let (open_repository, repo_details) = given::an_open_repository(&fs);
+            // no on_push defined - so any call to push will cause an error
+            let message_token = given::a_message_token();
+            let_assert!(
+                Err(err) = actor::branch::advance_next(
+                    &next,
+                    dev_commit_history,
+                    repo_details,
+                    repo_config,
+                    &open_repository,
+                    message_token,
+                )
+            );
+            tracing::debug!("Got: {err}");
+            assert!(matches!(err, actor::branch::Error::IsWorkInProgress));
+            Ok(())
+        }
+    }
+    mod to_invalid_commit {
+        // commit on dev is either invalid message or a WIP
+        use super::*;
+        #[test]
+        fn should_not_push_and_error() -> TestResult {
+            let next = given::a_commit();
+            let dev = given::a_commit();
+            let dev_commit_history = &[dev, next.clone()];
+            let fs = given::a_filesystem();
+            let repo_config = given::a_repo_config();
+            let (open_repository, repo_details) = given::an_open_repository(&fs);
+            // no on_push defined - so any call to push will cause an error
+            let message_token = given::a_message_token();
+            let_assert!(
+                Err(err) = actor::branch::advance_next(
+                    &next,
+                    dev_commit_history,
+                    repo_details,
+                    repo_config,
+                    &open_repository,
+                    message_token,
+                )
+            );
+            tracing::debug!("Got: {err}");
+            assert!(matches!(
+                err,
+                actor::branch::Error::InvalidCommitMessage{reason}
+                if reason == "Missing type in the commit summary, expected `type: description`"
+            ));
+            Ok(())
+        }
+    }
+    mod to_valid_commit {
+        // commit on dev is valid conventional commit message
+        use super::*;
+
+        mod push_is_err {
+            use git::repository::{OnFetch, OnPush};
+
+            // the git push command fails
+            use super::*;
+
+            #[test]
+            fn should_error() -> TestResult {
+                let next = given::a_commit();
+                let dev = given::a_commit_with_message("test: message".to_string());
+                let dev_commit_history = &[dev, next.clone()];
+                let fs = given::a_filesystem();
+                let repo_config = given::a_repo_config();
+                let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+                expect::fetch_ok(&mut open_repository);
+                expect::push(&mut open_repository, Err(git::push::Error::Lock));
+                let message_token = given::a_message_token();
+                let_assert!(
+                    Err(err) = actor::branch::advance_next(
+                        &next,
+                        dev_commit_history,
+                        repo_details,
+                        repo_config,
+                        &open_repository,
+                        message_token,
+                    )
+                );
+                tracing::debug!("Got: {err:?}");
+                assert!(matches!(
+                    err,
+                    actor::branch::Error::Push(git::push::Error::Lock)
+                ));
+                Ok(())
+            }
+        }
+        mod push_is_ok {
+            // the git push command succeeds
+            use git_next_git::repository::{OnFetch, OnPush};
+
+            // the git push command fails
+            use super::*;
+            #[test]
+            fn should_ok() -> TestResult {
+                let next = given::a_commit();
+                let dev = given::a_commit_with_message("test: message".to_string());
+                let dev_commit_history = &[dev, next.clone()];
+                let fs = given::a_filesystem();
+                let repo_config = given::a_repo_config();
+                let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+                expect::fetch_ok(&mut open_repository);
+                expect::push_ok(&mut open_repository);
+                let message_token = given::a_message_token();
+                let_assert!(
+                    Ok(mt) = actor::branch::advance_next(
+                        &next,
+                        dev_commit_history,
+                        repo_details,
+                        repo_config,
+                        &open_repository,
+                        message_token,
+                    )
+                );
+                tracing::debug!("Got: {mt:?}");
+                assert_eq!(mt, message_token);
+                Ok(())
+            }
+        }
+    }
+}

crates/repo-actor/src/tests/expect.rs

@@ -0,0 +1,58 @@
+//
+use super::*;
+
+use git::repository::MockRepositoryFactory;
+use git_next_git::repository::open::MockOpenRepositoryLike;
+
+pub fn fetch_ok(open_repository: &mut MockOpenRepositoryLike) {
+    expect::fetch(open_repository, Ok(()));
+}
+
+pub fn fetch(open_repository: &mut MockOpenRepositoryLike, result: Result<(), git::fetch::Error>) {
+    open_repository
+        .expect_fetch()
+        .times(1)
+        .return_once(|| result);
+}
+
+pub fn push_ok(open_repository: &mut MockOpenRepositoryLike) {
+    expect::push(open_repository, Ok(()))
+}
+
+pub fn push(open_repository: &mut MockOpenRepositoryLike, result: Result<(), git::push::Error>) {
+    open_repository
+        .expect_push()
+        .times(1)
+        .return_once(move |_, _, _, _| result);
+}
+
+pub fn duplicate(open_repository: &mut MockOpenRepositoryLike, result: MockOpenRepositoryLike) {
+    open_repository
+        .expect_duplicate()
+        .times(1)
+        .return_once(move || Box::new(result));
+}
+
+pub fn open_repository(
+    repository_factory: &mut MockRepositoryFactory,
+    open_repository: MockOpenRepositoryLike,
+) {
+    repository_factory
+        .expect_open()
+        .times(1)
+        .return_once(move |_| Ok(Box::new(open_repository)));
+}
+
+pub fn main_commit_log(
+    validation_repo: &mut MockOpenRepositoryLike,
+    main_branch: config::BranchName,
+) -> git::Commit {
+    let main_commit = given::a_commit();
+    let main_branch_log = vec![main_commit.clone()];
+    validation_repo
+        .expect_commit_log()
+        .times(1)
+        .with(eq(main_branch), eq([]))
+        .return_once(move |_, _| Ok(main_branch_log));
+    main_commit
+}

crates/repo-actor/src/tests/given.rs

@@ -0,0 +1,366 @@
+//
+#![allow(dead_code)] // TODO: remove this
+#![allow(unused_imports)] // TODO: remove this
+
+use git_next_git::repository::RepositoryLike as _;
+use mockall::predicate::eq;
+use rand::RngCore;
+use std::{
+    collections::HashMap,
+    path::PathBuf,
+    sync::{Arc, Mutex},
+};
+
+use super::*;
+use config::{
+    server::{Webhook, WebhookUrl},
+    BranchName, ForgeAlias, ForgeConfig, ForgeType, GitDir, RepoAlias, RepoBranches, RepoConfig,
+    ServerRepoConfig, WebhookAuth, WebhookId,
+};
+use git::{
+    repository::{open::MockOpenRepositoryLike, Direction},
+    Generation, GitRemote, MockForgeLike, RepoDetails,
+};
+
+pub fn has_all_valid_remote_defaults(
+    open_repository: &mut MockOpenRepositoryLike,
+    repo_details: &RepoDetails,
+) {
+    has_remote_defaults(
+        open_repository,
+        HashMap::from([
+            (Direction::Push, Some(repo_details.git_remote())),
+            (Direction::Fetch, Some(repo_details.git_remote())),
+        ]),
+    );
+}
+
+pub fn has_remote_defaults(
+    open_repository: &mut MockOpenRepositoryLike,
+    remotes: HashMap<Direction, Option<GitRemote>>,
+) {
+    remotes.into_iter().for_each(|(direction, remote)| {
+        open_repository
+            .expect_find_default_remote()
+            .with(eq(direction))
+            .return_once(|_| remote);
+    });
+}
+
+pub fn handles_validate_repo_message(
+    open_repository: &mut MockOpenRepositoryLike,
+    repo_branches: &RepoBranches,
+) {
+    let validate_positions_open_repository = open_repository_for_validate_positions(repo_branches);
+    expect::duplicate(open_repository, validate_positions_open_repository);
+}
+
+#[allow(clippy::type_complexity)]
+pub fn open_repository_for_loading_config_from_repo(
+    repo_config: &RepoConfig,
+) -> (
+    MockOpenRepositoryLike,
+    Arc<Mutex<Vec<(BranchName, PathBuf)>>>,
+) {
+    let mut load_config_from_repo_open_repository = MockOpenRepositoryLike::new();
+    let read_files = Arc::new(Mutex::new(vec![]));
+    let read_files_ref = read_files.clone();
+    let branches = repo_config.branches().clone();
+    load_config_from_repo_open_repository
+        .expect_read_file()
+        .return_once(move |branch_name, file_name| {
+            let branch_name = branch_name.clone();
+            let file_name = file_name.to_path_buf();
+            let _ = read_files_ref
+                .lock()
+                .map(move |mut l| l.push((branch_name, file_name)));
+            let contents = format!(
+                r#"
+                        [branches]
+                        main = "{}"
+                        next = "{}"
+                        dev = "{}"
+                        "#,
+                branches.main(),
+                branches.next(),
+                branches.dev()
+            );
+            Ok(contents)
+        });
+    let branches = repo_config.branches().clone();
+    let remote_branches = vec![branches.main(), branches.next(), branches.dev()];
+    load_config_from_repo_open_repository
+        .expect_remote_branches()
+        .return_once(move || Ok(remote_branches));
+    (load_config_from_repo_open_repository, read_files)
+}
+
+pub fn open_repository_for_validate_positions(branches: &RepoBranches) -> MockOpenRepositoryLike {
+    let mut open_repository = MockOpenRepositoryLike::new();
+    expect::fetch_ok(&mut open_repository);
+    let main_log = vec![given::a_commit()];
+    let next_commit_log_filter = main_log.clone();
+    let mut next_log: Vec<git::Commit> = main_log.clone();
+    next_log.extend(vec![given::a_commit()]);
+    let mut dev_log: Vec<git::Commit> = next_log.clone();
+    dev_log.extend(vec![given::a_commit()]);
+
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.main()), eq([]))
+        .return_once(move |_, _| Ok(main_log));
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.next()), eq(next_commit_log_filter.clone()))
+        .return_once(move |_, _| Ok(next_log));
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.dev()), eq(next_commit_log_filter))
+        .return_once(move |_, _| Ok(dev_log));
+    open_repository
+}
+
+pub fn a_webhook_auth() -> WebhookAuth {
+    WebhookAuth::generate()
+}
+
+pub enum Header {
+    Valid(WebhookAuth, config::webhook::forge_notification::Body),
+    Missing,
+    Invalid,
+}
+
+pub fn a_webhook_message_body() -> config::webhook::forge_notification::Body {
+    config::webhook::forge_notification::Body::new(a_name())
+}
+
+pub fn repo_branches() -> RepoBranches {
+    RepoBranches::new(
+        format!("main-{}", a_name()),
+        format!("next-{}", a_name()),
+        format!("dev-{}", a_name()),
+    )
+}
+
+pub fn a_forge_alias() -> ForgeAlias {
+    ForgeAlias::new(a_name())
+}
+
+pub fn a_repo_alias() -> RepoAlias {
+    RepoAlias::new(a_name())
+}
+
+pub fn a_network() -> kxio::network::MockNetwork {
+    kxio::network::MockNetwork::new()
+}
+
+pub fn a_webhook_url(
+    forge_alias: &ForgeAlias,
+    repo_alias: &RepoAlias,
+) -> git_next_config::server::WebhookUrl {
+    config::server::Webhook::new(a_name()).url(forge_alias, repo_alias)
+}
+
+pub fn any_webhook_url() -> git_next_config::server::WebhookUrl {
+    a_webhook_url(&a_forge_alias(), &a_repo_alias())
+}
+
+pub fn a_pathbuf() -> PathBuf {
+    PathBuf::from(given::a_name())
+}
+
+pub fn a_name() -> String {
+    use rand::Rng;
+    use std::iter;
+
+    fn generate(len: usize) -> String {
+        const CHARSET: &[u8] = b"ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+        let mut rng = rand::thread_rng();
+        let one_char = || CHARSET[rng.gen_range(0..CHARSET.len())] as char;
+        iter::repeat_with(one_char).take(len).collect()
+    }
+    generate(5)
+}
+
+pub fn a_webhook_id() -> WebhookId {
+    WebhookId::new(a_name())
+}
+
+pub fn a_github_webhook_id() -> i64 {
+    rand::thread_rng().next_u32().into()
+}
+
+pub fn a_branch_name(prefix: impl Into<String>) -> BranchName {
+    BranchName::new(format!("{}-{}", prefix.into(), a_name()))
+}
+
+pub fn a_git_dir(fs: &kxio::fs::FileSystem) -> GitDir {
+    let dir_name = a_name();
+    let dir = fs.base().join(dir_name);
+    GitDir::new(dir)
+}
+
+pub fn a_forge_config() -> ForgeConfig {
+    ForgeConfig::new(
+        ForgeType::MockForge,
+        a_name(),
+        a_name(),
+        a_name(),
+        Default::default(), // no repos
+    )
+}
+
+pub fn a_server_repo_config() -> ServerRepoConfig {
+    let main = a_branch_name("main").to_string();
+    let next = a_branch_name("next").to_string();
+    let dev = a_branch_name("dev").to_string();
+    ServerRepoConfig::new(
+        format!("{}/{}", a_name(), a_name()),
+        main.clone(),
+        None,
+        Some(main),
+        Some(next),
+        Some(dev),
+    )
+}
+
+pub fn a_repo_config() -> RepoConfig {
+    RepoConfig::new(given::repo_branches(), config::RepoConfigSource::Repo)
+}
+
+pub fn a_named_commit(name: impl Into<String>) -> git::Commit {
+    git::Commit::new(a_named_commit_sha(name), a_commit_message())
+}
+
+pub fn a_commit() -> git::Commit {
+    git::Commit::new(a_commit_sha(), a_commit_message())
+}
+
+pub fn a_commit_with_message(message: impl Into<git::commit::Message>) -> git::Commit {
+    git::Commit::new(a_commit_sha(), message.into())
+}
+
+pub fn a_commit_with_sha(sha: &git::commit::Sha) -> git::Commit {
+    git::Commit::new(sha.to_owned(), a_commit_message())
+}
+
+pub fn a_commit_with(sha: &git::commit::Sha, message: &git::commit::Message) -> git::Commit {
+    git::Commit::new(sha.to_owned(), message.to_owned())
+}
+
+pub fn a_commit_message() -> git::commit::Message {
+    git::commit::Message::new(a_name())
+}
+
+pub fn a_named_commit_sha(name: impl Into<String>) -> git::commit::Sha {
+    git::commit::Sha::new(format!("{}-{}", name.into(), a_name()))
+}
+
+pub fn a_commit_sha() -> git::commit::Sha {
+    git::commit::Sha::new(a_name())
+}
+
+pub fn a_webhook_push(
+    sha: &git::commit::Sha,
+    message: &git::commit::Message,
+) -> config::webhook::Push {
+    let branch = a_branch_name("webhook");
+    config::webhook::Push::new(branch, sha.to_string(), message.to_string())
+}
+
+pub fn a_filesystem() -> kxio::fs::FileSystem {
+    kxio::fs::temp().unwrap_or_else(|e| panic!("{}", e))
+}
+
+pub fn repo_details(fs: &kxio::fs::FileSystem) -> git::RepoDetails {
+    let generation = git::Generation::default();
+    let repo_alias = a_repo_alias();
+    let server_repo_config = a_server_repo_config();
+    let forge_alias = a_forge_alias();
+    let forge_config = a_forge_config();
+    let gitdir = a_git_dir(fs);
+    RepoDetails::new(
+        generation,
+        &repo_alias,
+        &server_repo_config,
+        &forge_alias,
+        &forge_config,
+        gitdir,
+    )
+}
+
+pub fn an_open_repository(
+    fs: &kxio::fs::FileSystem,
+) -> (
+    git::repository::open::MockOpenRepositoryLike,
+    git::RepoDetails,
+) {
+    let open_repository = MockOpenRepositoryLike::new();
+    let gitdir = given::a_git_dir(fs);
+    let hostname = given::a_hostname();
+    let repo_details = given::repo_details(fs)
+        .with_gitdir(gitdir)
+        .with_hostname(hostname);
+    (open_repository, repo_details)
+}
+
+pub fn a_message_token() -> MessageToken {
+    MessageToken::default()
+}
+
+pub fn a_webhook(url: &WebhookUrl) -> Webhook {
+    Webhook::new(url.clone().into())
+}
+
+pub fn a_forge() -> Box<MockForgeLike> {
+    Box::new(MockForgeLike::new())
+}
+
+pub fn a_repo_actor(
+    repo_details: git::RepoDetails,
+    repository_factory: Box<dyn git::repository::RepositoryFactory>,
+    forge: Box<dyn git::ForgeLike>,
+    net: kxio::network::Network,
+) -> (actor::RepoActor, RepoActorLog) {
+    let forge_alias = repo_details.forge.forge_alias();
+    let repo_alias = &repo_details.repo_alias;
+    let webhook_url = given::a_webhook_url(forge_alias, repo_alias);
+    let webhook = given::a_webhook(&webhook_url);
+    let generation = Generation::default();
+    let log = Arc::new(Mutex::new(vec![]));
+    let actors_log = log.clone();
+    (
+        actor::RepoActor::new(
+            repo_details,
+            forge,
+            webhook,
+            generation,
+            net,
+            repository_factory,
+            std::time::Duration::from_nanos(1),
+        )
+        .with_log(actors_log),
+        log,
+    )
+}
+
+pub fn a_git_remote(repo_details: &git::RepoDetails) -> git::GitRemote {
+    let hostname = repo_details.forge.hostname().clone();
+    let repo_path = repo_details.repo_path.clone();
+    git::GitRemote::new(hostname, repo_path)
+}
+
+pub fn a_hostname() -> config::Hostname {
+    config::Hostname::new(given::a_name())
+}
+
+pub fn a_repo_path() -> config::RepoPath {
+    config::RepoPath::new(given::a_name())
+}
+
+pub fn a_registered_webhook() -> RegisteredWebhook {
+    RegisteredWebhook::new(given::a_webhook_id(), given::a_webhook_auth())
+}

crates/repo-actor/src/tests/handlers.rs

@@ -0,0 +1,13 @@
+//
+use super::*;
+use actix::prelude::*;
+
+mod advance_main;
+mod advance_next;
+mod check_ci_status;
+mod clone_repo;
+mod load_config_from_repo;
+mod loaded_config;
+mod receive_ci_status;
+mod register_webhook;
+mod validate_repo;

crates/repo-actor/src/tests/handlers/advance_main.rs

@@ -0,0 +1,86 @@
+//
+use super::*;
+
+#[actix::test]
+async fn when_repo_config_should_fetch_then_push_then_revalidate() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, mut repo_details) = given::an_open_repository(&fs);
+
+    // config from repo
+    #[allow(clippy::unwrap_used)]
+    let repo_config = repo_details.repo_config.take().unwrap();
+    repo_details.repo_config = Some(repo_config.with_source(config::RepoConfigSource::Repo));
+
+    let next_commit = given::a_commit_with_message("feat: next".to_string());
+
+    let mut seq = mockall::Sequence::new();
+    open_repository
+        .expect_fetch()
+        .times(1)
+        .in_sequence(&mut seq)
+        .return_once(|| Ok(()));
+    open_repository
+        .expect_push()
+        .times(1)
+        .in_sequence(&mut seq)
+        .return_once(|_, _, _, _| Ok(()));
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(actor::messages::AdvanceMain::new(next_commit.clone()))
+        .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l
+            .iter()
+            .any(|message| message.contains("send: LoadConfigFromRepo")))
+    })?;
+    Ok(())
+}
+
+#[actix::test]
+async fn when_server_config_should_fetch_then_push_then_revalidate() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, mut repo_details) = given::an_open_repository(&fs);
+
+    // config from server
+    #[allow(clippy::unwrap_used)]
+    let repo_config = repo_details.repo_config.take().unwrap();
+    repo_details.repo_config = Some(repo_config.with_source(config::RepoConfigSource::Server));
+
+    let next_commit = given::a_commit_with_message("feat: next".to_string());
+
+    let mut seq = mockall::Sequence::new();
+    open_repository
+        .expect_fetch()
+        .times(1)
+        .in_sequence(&mut seq)
+        .return_once(|| Ok(()));
+    open_repository
+        .expect_push()
+        .times(1)
+        .in_sequence(&mut seq)
+        .return_once(|_, _, _, _| Ok(()));
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(actor::messages::AdvanceMain::new(next_commit.clone()))
+        .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l
+            .iter()
+            .any(|message| message.contains("send: ValidateRepo")))
+    })?;
+    Ok(())
+}

crates/repo-actor/src/tests/handlers/advance_next.rs

@@ -0,0 +1,46 @@
+//
+use super::*;
+
+#[actix::test]
+async fn should_fetch_then_push_then_revalidate() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    let next_commit = given::a_commit_with_message("feat: next".to_string());
+    let dev_commit_log = vec![
+        given::a_commit_with_message("feat: dev".to_string()),
+        given::a_commit_with_message("feat: target".to_string()),
+        next_commit.clone(),
+    ];
+
+    let mut seq = mockall::Sequence::new();
+    open_repository
+        .expect_fetch()
+        .times(1)
+        .in_sequence(&mut seq)
+        .return_once(|| Ok(()));
+    open_repository
+        .expect_push()
+        .times(1)
+        .in_sequence(&mut seq)
+        .return_once(|_, _, _, _| Ok(()));
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(actor::messages::AdvanceNext::new((
+        next_commit.clone(),
+        dev_commit_log,
+    )))
+    .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l
+            .iter()
+            .any(|message| message.contains("send: ValidateRepo")))
+    })?;
+    Ok(())
+}

crates/repo-actor/src/tests/handlers/check_ci_status.rs

@@ -0,0 +1,32 @@
+//
+use super::*;
+
+#[actix::test]
+async fn should_passthrough_to_receive_ci_status() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (open_repository, repo_details) = given::an_open_repository(&fs);
+    let next_commit = given::a_named_commit("next");
+    let mut forge = git::MockForgeLike::new();
+    when::commit_status(
+        &mut forge,
+        next_commit.clone(),
+        git::forge::commit::Status::Pass,
+    );
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, Box::new(forge));
+    addr.send(actor::messages::CheckCIStatus::new(next_commit.clone()))
+        .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l
+            .iter()
+            .any(|message| message.contains("send: ReceiveCIStatus")))
+    })?;
+    Ok(())
+}

crates/repo-actor/src/tests/handlers/clone_repo.rs

@@ -0,0 +1,208 @@
+//
+
+use super::*;
+
+#[actix::test]
+async fn should_clone() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, /* mut */ repo_details) = given::an_open_repository(&fs);
+    // #[allow(clippy::unwrap_used)]
+    // let repo_config = repo_details.repo_config.take().unwrap();
+
+    given::has_all_valid_remote_defaults(&mut open_repository, &repo_details);
+    // handles_validate_repo_message(&mut open_repository, repo_config.branches());
+
+    // factory clones an open repository
+    let mut repository_factory = MockRepositoryFactory::new();
+    let cloned = Arc::new(Mutex::new(vec![]));
+    let cloned_ref = cloned.clone();
+    repository_factory
+        .expect_git_clone()
+        .times(2)
+        .return_once(move |_| {
+            let _ = cloned_ref.lock().map(|mut l| l.push(()));
+            Ok(Box::new(open_repository))
+        });
+
+    //when
+    let (addr, _log) = when::start_actor(repository_factory, repo_details, given::a_forge());
+    addr.send(CloneRepo::new()).await?;
+    System::current().stop();
+
+    //then
+    cloned
+        .lock()
+        .map_err(|e| e.to_string())
+        .map(|o| assert_eq!(o.len(), 1))?;
+
+    Ok(())
+}
+
+#[actix::test]
+async fn should_open() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, /* mut */ repo_details) = given::an_open_repository(&fs);
+    // #[allow(clippy::unwrap_used)]
+    // let repo_config = repo_details.repo_config.take().unwrap();
+
+    given::has_all_valid_remote_defaults(&mut open_repository, &repo_details);
+    // handles_validate_repo_message(&mut open_repository, repo_config.branches());
+
+    // factory opens a repository
+    let mut repository_factory = MockRepositoryFactory::new();
+    let opened = Arc::new(Mutex::new(vec![]));
+    let opened_ref = opened.clone();
+    repository_factory
+        .expect_open()
+        .times(1)
+        .return_once(move |_| {
+            let _ = opened_ref.lock().map(|mut l| l.push(()));
+            Ok(Box::new(open_repository))
+        });
+    fs.dir_create(&repo_details.gitdir)?;
+
+    //when
+    let (addr, _log) = when::start_actor(repository_factory, repo_details, given::a_forge());
+    addr.send(CloneRepo::new()).await?;
+    System::current().stop();
+
+    //then
+    opened
+        .lock()
+        .map_err(|e| e.to_string())
+        .map(|o| assert_eq!(o.len(), 1))?;
+
+    Ok(())
+}
+
+/// The server config can optionally include the names of the main, next and dev
+/// branches. When it doesn't we should load the .git-next.yaml from from the
+/// repo and get the branch names from there.
+#[actix::test]
+async fn when_server_has_no_repo_config_load_from_repo_and_validate() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, mut repo_details) = given::an_open_repository(&fs);
+    #[allow(clippy::unwrap_used)]
+    let repo_config = repo_details.repo_config.take().unwrap();
+
+    given::has_all_valid_remote_defaults(&mut open_repository, &repo_details);
+
+    // load config from repo
+    let (load_config_from_repo_open_repository, read_files) =
+        given::open_repository_for_loading_config_from_repo(&repo_config);
+    expect::duplicate(&mut open_repository, load_config_from_repo_open_repository);
+
+    // handles_validate_repo_message(&mut open_repository, repo_config.branches());
+
+    let mut repository_factory = MockRepositoryFactory::new();
+    expect::open_repository(&mut repository_factory, open_repository);
+    fs.dir_create(&repo_details.gitdir)?;
+    let branch = repo_details.branch.clone();
+
+    //when
+    let (addr, _log) = when::start_actor(repository_factory, repo_details, given::a_forge());
+    addr.send(CloneRepo::new()).await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!("{read_files:#?}");
+    let file_name = PathBuf::from(".git-next.toml".to_string());
+    read_files
+        .lock()
+        .map_err(|e| e.to_string())
+        .map(|files| assert_eq!(files.clone(), vec![(branch, file_name)]))?;
+
+    Ok(())
+}
+
+#[test_log::test(actix::test)]
+async fn opened_repo_with_no_default_push_should_not_proceed() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+
+    given::has_remote_defaults(
+        &mut open_repository,
+        HashMap::from([
+            (Direction::Push, None),
+            (Direction::Fetch, Some(repo_details.git_remote())),
+        ]),
+    );
+
+    let mut repository_factory = MockRepositoryFactory::new();
+    expect::open_repository(&mut repository_factory, open_repository);
+    fs.dir_create(&repo_details.gitdir)?;
+
+    //when
+    let (addr, log) = when::start_actor(repository_factory, repo_details, given::a_forge());
+    addr.send(CloneRepo::new()).await?;
+    System::current().stop();
+
+    //then
+    log.lock()
+        .map_err(|e| e.to_string())
+        // doesn't log that it sent any messages to load config or validate the repo
+        .map(|l| assert_eq!(l.clone(), vec!["open failed"]))?;
+
+    Ok(())
+}
+
+#[test_log::test(actix::test)]
+async fn opened_repo_with_no_default_fetch_should_not_proceed() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+
+    given::has_remote_defaults(
+        &mut open_repository,
+        HashMap::from([
+            (Direction::Push, Some(repo_details.git_remote())),
+            (Direction::Fetch, None),
+        ]),
+    );
+
+    let mut repository_factory = MockRepositoryFactory::new();
+    expect::open_repository(&mut repository_factory, open_repository);
+    fs.dir_create(&repo_details.gitdir)?;
+
+    //when
+    let (addr, log) = when::start_actor(repository_factory, repo_details, given::a_forge());
+    addr.send(CloneRepo::new()).await?;
+    System::current().stop();
+
+    //then
+    log.lock()
+        .map_err(|e| e.to_string())
+        // doesn't log that it sent any messages to load config or validate the repo
+        .map(|l| assert_eq!(l.clone(), vec!["open failed"]))?;
+
+    Ok(())
+}
+
+#[test_log::test(actix::test)]
+async fn valid_repo_with_default_remotes_should_assess_branch_positions() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+
+    given::has_all_valid_remote_defaults(&mut open_repository, &repo_details);
+
+    let mut repository_factory = MockRepositoryFactory::new();
+    expect::open_repository(&mut repository_factory, open_repository);
+    fs.dir_create(&repo_details.gitdir)?;
+
+    //when
+    let (addr, log) = when::start_actor(repository_factory, repo_details, given::a_forge());
+    addr.send(CloneRepo::new()).await?;
+    System::current().stop();
+
+    //then
+    log.lock()
+        .map_err(|e| e.to_string())
+        .map(|l| assert!(l.iter().any(|l| l.contains("send: ValidateRepo"))))?;
+
+    Ok(())
+}

crates/repo-actor/src/tests/handlers/load_config_from_repo.rs

@@ -0,0 +1,86 @@
+//
+use super::*;
+
+#[actix::test]
+async fn when_read_file_ok_should_send_config_loaded() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    let mut load_config_open_repo = MockOpenRepositoryLike::new();
+    let branches = given::repo_branches();
+    let remote_branches = vec![branches.main(), branches.next(), branches.dev()];
+    load_config_open_repo
+        .expect_read_file()
+        .return_once(move |_, _| {
+            Ok(format!(
+                r#"
+        [branches]
+        main = "{}"
+        next = "{}"
+        dev = "{}"
+        "#,
+                branches.main(),
+                branches.next(),
+                branches.dev()
+            ))
+        });
+
+    load_config_open_repo
+        .expect_remote_branches()
+        .return_once(|| Ok(remote_branches));
+
+    open_repository
+        .expect_duplicate()
+        .return_once(|| Box::new(load_config_open_repo));
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(actor::messages::LoadConfigFromRepo::new())
+        .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l
+            .iter()
+            .any(|message| message.contains("send: LoadedConfig")))
+    })?;
+    Ok(())
+}
+
+#[actix::test]
+#[ignore] //TODO: (#95) should notify user
+async fn when_read_file_err_should_notify_user() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    let mut load_config_open_repo = MockOpenRepositoryLike::new();
+    load_config_open_repo
+        .expect_read_file()
+        .return_once(move |_, _| Err(git::file::Error::FileNotFound));
+
+    open_repository
+        .expect_duplicate()
+        .return_once(|| Box::new(load_config_open_repo));
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(actor::messages::LoadConfigFromRepo::new())
+        .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l.iter().any(|message| message.contains("send: NotifyUser")));
+        assert!(
+            !l.iter()
+                .any(|message| message.contains("send: LoadedConfig")),
+            "not send LoadedConfig"
+        );
+    })?;
+    Ok(())
+}

crates/repo-actor/src/tests/handlers/loaded_config.rs

@@ -0,0 +1,95 @@
+//
+use super::*;
+use actix::prelude::*;
+
+#[actix::test]
+async fn should_store_repo_config_in_actor() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (open_repository, repo_details) = given::an_open_repository(&fs);
+
+    let new_repo_config = given::a_repo_config();
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(actor::messages::ReceiveRepoConfig::new(
+        new_repo_config.clone(),
+    ))
+    .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+
+    let repo_config = addr.send(TakeRepoConfig).await?;
+    assert_eq!(repo_config, Some(new_repo_config));
+    Ok(())
+}
+
+#[actix::test]
+async fn should_validate_repo() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (open_repository, repo_details) = given::an_open_repository(&fs);
+
+    let new_repo_config = given::a_repo_config();
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(actor::messages::ReceiveRepoConfig::new(
+        new_repo_config.clone(),
+    ))
+    .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l
+            .iter()
+            .any(|message| message.contains("send: ValidateRepo")))
+    })?;
+    Ok(())
+}
+
+#[actix::test]
+async fn should_register_webhook() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (open_repository, repo_details) = given::an_open_repository(&fs);
+
+    let new_repo_config = given::a_repo_config();
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(actor::messages::ReceiveRepoConfig::new(
+        new_repo_config.clone(),
+    ))
+    .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l
+            .iter()
+            .any(|message| message.contains("send: RegisterWebhook")))
+    })?;
+    Ok(())
+}
+
+actor::message!(TakeRepoConfig => Option<RepoConfig>);
+
+impl Handler<TakeRepoConfig> for actor::RepoActor {
+    type Result = Option<RepoConfig>;
+
+    fn handle(&mut self, _msg: TakeRepoConfig, _ctx: &mut Self::Context) -> Self::Result {
+        tracing::debug!("TakeRepoConfig >>");
+        let repo_config = self.repo_details.repo_config.take();
+        tracing::debug!(?repo_config, "TakeRepoConfig <<");
+        repo_config
+    }
+}

crates/repo-actor/src/tests/handlers/receive_ci_status.rs

@@ -0,0 +1,82 @@
+//
+use super::*;
+
+#[actix::test]
+async fn when_pass_should_advance_main_to_next() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (open_repository, repo_details) = given::an_open_repository(&fs);
+    let next_commit = given::a_named_commit("next");
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(actor::messages::ReceiveCIStatus::new((
+        next_commit.clone(),
+        git::forge::commit::Status::Pass,
+    )))
+    .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        let expected = format!("send: AdvanceMain({:?})", next_commit);
+        tracing::debug!(%expected,"");
+        assert!(l.iter().any(|message| message.contains(&expected)))
+    })?;
+    Ok(())
+}
+
+#[actix::test]
+async fn when_pending_should_recheck_ci_status() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (open_repository, repo_details) = given::an_open_repository(&fs);
+    let next_commit = given::a_named_commit("next");
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(actor::messages::ReceiveCIStatus::new((
+        next_commit.clone(),
+        git::forge::commit::Status::Pending,
+    )))
+    .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l
+            .iter()
+            .any(|message| message.contains("send: ValidateRepo")))
+    })?;
+    Ok(())
+}
+
+#[actix::test]
+#[ignore] //TODO: (#95) should notify user
+async fn when_fail_should_notify_user() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (open_repository, repo_details) = given::an_open_repository(&fs);
+    let next_commit = given::a_named_commit("next");
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(actor::messages::ReceiveCIStatus::new((
+        next_commit.clone(),
+        git::forge::commit::Status::Fail,
+    )))
+    .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock()
+        .map_err(|e| e.to_string())
+        .map(|l| assert!(l.iter().any(|message| message.contains("send: NotifyUser"))))?;
+    Ok(())
+}

crates/repo-actor/src/tests/handlers/register_webhook.rs

@@ -0,0 +1,64 @@
+//
+use super::*;
+
+#[actix::test]
+async fn when_registered_ok_should_send_webhook_registered() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (open_repository, repo_details) = given::an_open_repository(&fs);
+
+    let registered_webhook = given::a_registered_webhook();
+    let mut my_forge = git::MockForgeLike::new();
+    my_forge
+        .expect_register_webhook()
+        .return_once(move |_| Ok(registered_webhook));
+
+    let mut forge = git::MockForgeLike::new();
+    forge.expect_duplicate().return_once(|| Box::new(my_forge));
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, Box::new(forge));
+    addr.send(actor::messages::RegisterWebhook::new()).await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l
+            .iter()
+            .any(|message| message.contains("send: WebhookRegistered")))
+    })?;
+    Ok(())
+}
+
+#[actix::test]
+#[ignore] //TODO: (#95) should notify user
+async fn when_registered_error_should_send_notify_user() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (open_repository, repo_details) = given::an_open_repository(&fs);
+
+    let mut my_forge = git::MockForgeLike::new();
+    my_forge.expect_register_webhook().return_once(move |_| {
+        Err(git::forge::webhook::Error::FailedToRegister(
+            "foo".to_string(),
+        ))
+    });
+
+    let mut forge = git::MockForgeLike::new();
+    forge.expect_duplicate().return_once(|| Box::new(my_forge));
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, Box::new(forge));
+    addr.send(actor::messages::RegisterWebhook::new()).await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock()
+        .map_err(|e| e.to_string())
+        .map(|l| assert!(l.iter().any(|message| message.contains("send: NotifyUser"))))?;
+    Ok(())
+}

crates/repo-actor/src/tests/handlers/validate_repo.rs

@@ -0,0 +1,375 @@
+//
+use crate::messages::{MessageToken, ValidateRepo};
+
+use super::*;
+
+#[test_log::test(actix::test)]
+async fn repo_with_next_not_an_ancestor_of_dev_should_be_reset() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    #[allow(clippy::unwrap_used)]
+    let repo_config = repo_details.repo_config.clone().unwrap();
+    expect::fetch_ok(&mut open_repository);
+    let branches = repo_config.branches();
+    // commit_log main
+    let main_commit = expect::main_commit_log(&mut open_repository, branches.main());
+    // next - based on main
+    let next_branch_log = vec![given::a_commit(), main_commit.clone()];
+    // dev - based on main, but not on next
+    let dev_branch_log = vec![given::a_commit(), main_commit.clone()];
+    // commit_log next - based on main, but not a parent of dev
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.next()), eq([main_commit.clone()]))
+        .return_once(move |_, _| Ok(next_branch_log));
+    // commit_log dev
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.dev()), eq([main_commit]))
+        .return_once(|_, _| Ok(dev_branch_log));
+    // expect to reset the branch
+    expect::fetch_ok(&mut open_repository);
+    expect::push_ok(&mut open_repository);
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(crate::messages::ValidateRepo::new(MessageToken::default()))
+        .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l
+            .iter()
+            .any(|message| message.contains("NextBranchResetRequired")))
+    })?;
+    Ok(())
+}
+
+#[test_log::test(actix::test)]
+async fn repo_with_next_not_on_or_near_main_should_be_reset() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    #[allow(clippy::unwrap_used)]
+    let repo_config = repo_details.repo_config.clone().unwrap();
+    expect::fetch_ok(&mut open_repository);
+    let branches = repo_config.branches();
+    // commit_log main
+    let main_commit = expect::main_commit_log(&mut open_repository, branches.main());
+    // next - based on main, but too far in advance
+    let next_branch_log = vec![given::a_commit(), given::a_commit(), main_commit.clone()];
+    // dev - based on next
+    let mut dev_branch_log = vec![given::a_commit()];
+    dev_branch_log.extend(next_branch_log.clone());
+    // commit_log next
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.next()), eq([main_commit.clone()]))
+        .return_once(move |_, _| Ok(next_branch_log));
+    // commit_log dev
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.dev()), eq([main_commit]))
+        .return_once(|_, _| Ok(dev_branch_log));
+    expect::fetch_ok(&mut open_repository);
+    expect::push_ok(&mut open_repository);
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(crate::messages::ValidateRepo::new(MessageToken::default()))
+        .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l
+            .iter()
+            .any(|message| message.contains("NextBranchResetRequired")))
+    })?;
+    Ok(())
+}
+
+#[test_log::test(actix::test)]
+async fn repo_with_next_not_based_on_main_should_be_reset() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    #[allow(clippy::unwrap_used)]
+    let repo_config = repo_details.repo_config.clone().unwrap();
+    // given::has_all_valid_remote_defaults(&mut open_repository, &repo_details);
+    expect::fetch_ok(&mut open_repository);
+    let branches = repo_config.branches();
+    // commit_log main
+    let main_commit = expect::main_commit_log(&mut open_repository, branches.main());
+    // next - not based on main
+    let next_branch_log = vec![given::a_commit(), given::a_commit(), given::a_commit()];
+    // dev - based on main
+    let dev_branch_log = vec![given::a_commit(), main_commit.clone()];
+    // commit_log next
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.next()), eq([main_commit.clone()]))
+        .return_once(move |_, _| Ok(next_branch_log));
+    // commit_log dev
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.dev()), eq([main_commit]))
+        .return_once(|_, _| Ok(dev_branch_log));
+    expect::fetch_ok(&mut open_repository);
+    expect::push_ok(&mut open_repository);
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(crate::messages::ValidateRepo::new(MessageToken::default()))
+        .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l
+            .iter()
+            .any(|message| message.contains("NextBranchResetRequired")))
+    })?;
+    Ok(())
+}
+
+#[test_log::test(actix::test)]
+async fn repo_with_next_ahead_of_main_should_check_ci_status() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    #[allow(clippy::unwrap_used)]
+    let repo_config = repo_details.repo_config.clone().unwrap();
+    // Validate repo branches
+    expect::fetch_ok(&mut open_repository);
+    let branches = repo_config.branches();
+    // commit_log main
+    let main_commit = expect::main_commit_log(&mut open_repository, branches.main());
+    // next - ahead of main
+    let next_commit = given::a_named_commit("next");
+    let next_branch_log = vec![next_commit.clone(), main_commit.clone()];
+    // dev - on next
+    let dev_branch_log = next_branch_log.clone();
+    // commit_log next
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.next()), eq([main_commit.clone()]))
+        .return_once(move |_, _| Ok(next_branch_log));
+    // commit_log dev
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.dev()), eq([main_commit]))
+        .return_once(|_, _| Ok(dev_branch_log));
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(crate::messages::ValidateRepo::new(MessageToken::default()))
+        .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        let expected = format!("send: CheckCIStatus({next_commit:?})");
+        assert!(l.iter().any(|message| message.contains(&expected)))
+    })?;
+    Ok(())
+}
+
+#[test_log::test(actix::test)]
+async fn repo_with_dev_and_next_on_main_should_do_nothing() -> TestResult {
+    // Do nothing, when the situation changes we will hear about it via a webhook
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    #[allow(clippy::unwrap_used)]
+    let repo_config = repo_details.repo_config.clone().unwrap();
+    // Validate repo branches
+    expect::fetch_ok(&mut open_repository);
+    let branches = repo_config.branches();
+    // commit_log main
+    let main_commit = expect::main_commit_log(&mut open_repository, branches.main());
+    // next - on main
+    let next_branch_log = vec![main_commit.clone(), given::a_commit()];
+    // dev - on next
+    let dev_branch_log = next_branch_log.clone();
+    // commit_log next
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.next()), eq([main_commit.clone()]))
+        .return_once(move |_, _| Ok(next_branch_log));
+    // commit_log dev
+    let dev_commit_log = dev_branch_log.clone();
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.dev()), eq([main_commit]))
+        .return_once(move |_, _| Ok(dev_commit_log));
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(crate::messages::ValidateRepo::new(MessageToken::default()))
+        .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock()
+        .map_err(|e| e.to_string())
+        .map(|l| assert!(!l.iter().any(|message| message.contains("send:"))))?;
+    Ok(())
+}
+
+#[test_log::test(actix::test)]
+async fn repo_with_dev_ahead_of_next_should_advance_next() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    #[allow(clippy::unwrap_used)]
+    let repo_config = repo_details.repo_config.clone().unwrap();
+    // Validate repo branches
+    expect::fetch_ok(&mut open_repository);
+    let branches = repo_config.branches();
+    // commit_log main
+    let main_commit = expect::main_commit_log(&mut open_repository, branches.main());
+    // next - on main
+    let next_commit = main_commit.clone();
+    let next_branch_log = vec![main_commit.clone(), given::a_commit()];
+    // dev - ahead of next
+    let dev_commit = given::a_named_commit("dev");
+    let dev_branch_log = vec![dev_commit, main_commit.clone()];
+    // commit_log next
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.next()), eq([main_commit.clone()]))
+        .return_once(move |_, _| Ok(next_branch_log));
+    // commit_log dev
+    let dev_commit_log = dev_branch_log.clone();
+    open_repository
+        .expect_commit_log()
+        .times(1)
+        .with(eq(branches.dev()), eq([main_commit]))
+        .return_once(move |_, _| Ok(dev_commit_log));
+
+    //when
+    let (addr, log) =
+        when::start_actor_with_open_repository(open_repository, repo_details, given::a_forge());
+    addr.send(crate::messages::ValidateRepo::new(MessageToken::default()))
+        .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        let expected = format!("send: AdvanceNext(({next_commit:?}, {dev_branch_log:?}))");
+        assert!(l.iter().any(|message| message.contains(&expected)))
+    })?;
+    Ok(())
+}
+
+// TODO: (#95) test: repo with dev not a child of main should notify user
+
+#[test_log::test(actix::test)]
+async fn should_accept_message_with_current_token() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let repo_details = given::repo_details(&fs);
+
+    //when
+    let (actor, log) = given::a_repo_actor(
+        repo_details,
+        git::repository::mock(),
+        given::a_forge(),
+        given::a_network().into(),
+    );
+    let actor = actor.with_message_token(MessageToken::new(2_u32));
+    let addr = actor.start();
+    addr.send(crate::messages::ValidateRepo::new(MessageToken::new(2_u32)))
+        .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l
+            .iter()
+            .any(|message| message.contains("accepted token: 2")))
+    })?;
+    Ok(())
+}
+
+#[test_log::test(actix::test)]
+async fn should_accept_message_with_new_token() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let repo_details = given::repo_details(&fs);
+
+    //when
+    let (actor, log) = given::a_repo_actor(
+        repo_details,
+        git::repository::mock(),
+        given::a_forge(),
+        given::a_network().into(),
+    );
+    let actor = actor.with_message_token(MessageToken::new(2_u32));
+    let addr = actor.start();
+    addr.send(crate::messages::ValidateRepo::new(MessageToken::new(3_u32)))
+        .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock().map_err(|e| e.to_string()).map(|l| {
+        assert!(l
+            .iter()
+            .any(|message| message.contains("accepted token: 3")))
+    })?;
+    Ok(())
+}
+
+#[test_log::test(actix::test)]
+async fn should_reject_message_with_expired_token() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let repo_details = given::repo_details(&fs);
+
+    //when
+    let (actor, log) = given::a_repo_actor(
+        repo_details,
+        git::repository::mock(),
+        given::a_forge(),
+        given::a_network().into(),
+    );
+    let actor = actor.with_message_token(MessageToken::new(4_u32));
+    let addr = actor.start();
+    addr.send(crate::messages::ValidateRepo::new(MessageToken::new(3_u32)))
+        .await?;
+    System::current().stop();
+
+    //then
+    tracing::debug!(?log, "");
+    log.lock()
+        .map_err(|e| e.to_string())
+        .map(|l| assert!(!l.iter().any(|message| message.contains("accepted token"))))?;
+    Ok(())
+}

crates/repo-actor/src/tests/load.rs

@@ -0,0 +1,183 @@
+//
+use std::path::PathBuf;
+
+use git_next_git::common::repo_details;
+
+use super::*;
+
+#[tokio::test]
+async fn when_file_not_found_should_error() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    open_repository
+        .expect_read_file()
+        .returning(|_, _| Err(git::file::Error::FileNotFound));
+    //when
+    let_assert!(
+        Err(err) = actor::load::config_from_repository(repo_details, &open_repository).await
+    );
+    //then
+    tracing::debug!("Got: {err:?}");
+    assert!(matches!(
+        err,
+        actor::load::Error::File(git::file::Error::FileNotFound)
+    ));
+    Ok(())
+}
+
+#[tokio::test]
+async fn when_file_format_invalid_should_error() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    let contents = given::a_name(); // not a valid file content
+    open_repository
+        .expect_read_file()
+        .return_once(move |_, _| Ok(contents));
+    //when
+    let_assert!(
+        Err(err) = actor::load::config_from_repository(repo_details, &open_repository).await
+    );
+    //then
+    tracing::debug!("Got: {err:?}");
+    assert!(matches!(err, actor::load::Error::Toml(_)));
+    Ok(())
+}
+
+#[tokio::test]
+async fn when_main_branch_is_missing_should_error() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    let branches = given::repo_branches();
+    let main = branches.main();
+    let next = branches.next();
+    let dev = branches.dev();
+    let contents = format!(
+        r#"
+        [branches]
+        main = "{main}"
+        next = "{next}"
+        dev = "{dev}"
+        "#
+    );
+    open_repository
+        .expect_read_file()
+        .return_once(|_, _| Ok(contents));
+    let branches = vec![next, dev];
+    open_repository
+        .expect_remote_branches()
+        .return_once(move || Ok(branches));
+    //when
+    let_assert!(
+        Err(err) = actor::load::config_from_repository(repo_details, &open_repository).await
+    );
+    //then
+    tracing::debug!("Got: {err:?}");
+    assert!(matches!(err, actor::load::Error::BranchNotFound(branch) if branch == main));
+    Ok(())
+}
+
+#[tokio::test]
+async fn when_next_branch_is_missing_should_error() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    let branches = given::repo_branches();
+    let main = branches.main();
+    let next = branches.next();
+    let dev = branches.dev();
+    let contents = format!(
+        r#"
+        [branches]
+        main = "{main}"
+        next = "{next}"
+        dev = "{dev}"
+        "#
+    );
+    open_repository
+        .expect_read_file()
+        .return_once(|_, _| Ok(contents));
+    let branches = vec![main, dev];
+    open_repository
+        .expect_remote_branches()
+        .return_once(move || Ok(branches));
+    //when
+    let_assert!(
+        Err(err) = actor::load::config_from_repository(repo_details, &open_repository).await
+    );
+    //then
+    tracing::debug!("Got: {err:?}");
+    assert!(matches!(err, actor::load::Error::BranchNotFound(branch) if branch == next));
+    Ok(())
+}
+
+#[tokio::test]
+async fn when_dev_branch_is_missing_should_error() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    let branches = given::repo_branches();
+    let main = branches.main();
+    let next = branches.next();
+    let dev = branches.dev();
+    let contents = format!(
+        r#"
+        [branches]
+        main = "{main}"
+        next = "{next}"
+        dev = "{dev}"
+        "#
+    );
+    open_repository
+        .expect_read_file()
+        .return_once(move |_, _| Ok(contents));
+    let branches = vec![main, next];
+    open_repository
+        .expect_remote_branches()
+        .return_once(move || Ok(branches));
+    //when
+    let_assert!(
+        Err(err) = actor::load::config_from_repository(repo_details, &open_repository).await
+    );
+    //then
+    tracing::debug!("Got: {err:?}");
+    assert!(matches!(err, actor::load::Error::BranchNotFound(branch) if branch == dev));
+    Ok(())
+}
+
+#[tokio::test]
+async fn when_valid_file_should_return_repo_config() -> TestResult {
+    //given
+    let fs = given::a_filesystem();
+    let (mut open_repository, repo_details) = given::an_open_repository(&fs);
+    let repo_config = given::a_repo_config();
+    let branches = repo_config.branches();
+    let main = branches.main();
+    let next = branches.next();
+    let dev = branches.dev();
+    let contents = format!(
+        r#"
+        [branches]
+        main = "{main}"
+        next = "{next}"
+        dev = "{dev}"
+        "#
+    );
+    open_repository
+        .expect_read_file()
+        .return_once(move |_, _| Ok(contents));
+    let branches = vec![main, next, dev];
+    open_repository
+        .expect_remote_branches()
+        .return_once(move || Ok(branches));
+    //when
+    let_assert!(
+        Ok(result) = actor::load::config_from_repository(repo_details, &open_repository).await
+    );
+    //then
+    tracing::debug!("Got: {result:?}");
+    assert_eq!(result, repo_config);
+    Ok(())
+}

crates/repo-actor/src/tests/then.rs

@@ -0,0 +1,168 @@
+//
+#![allow(dead_code)] // TODO: remove this
+#![allow(unused_imports)] // TODO: remove this
+
+use std::path::{Path, PathBuf};
+
+type TestResult = Result<(), Box<dyn std::error::Error>>;
+
+use super::*;
+
+pub fn commit_named_file_to_branch(
+    file_name: &Path,
+    contents: &str,
+    fs: &kxio::fs::FileSystem,
+    gitdir: &config::GitDir,
+    branch_name: &config::BranchName,
+) -> TestResult {
+    // git checkout ${branch_name}
+    git_checkout_new_branch(branch_name, gitdir)?;
+    // echo ${word} > file-${word}
+    let pathbuf = PathBuf::from(gitdir);
+    let file = fs.base().join(pathbuf).join(file_name);
+    #[allow(clippy::expect_used)]
+    fs.file_write(&file, contents)?;
+    // git add ${file}
+    git_add_file(gitdir, &file)?;
+    // git commit -m"Added ${file}"
+    git_commit(gitdir, &file)?;
+
+    then::push_branch(fs, gitdir, branch_name)?;
+
+    Ok(())
+}
+
+pub fn create_a_commit_on_branch(
+    fs: &kxio::fs::FileSystem,
+    gitdir: &config::GitDir,
+    branch_name: &config::BranchName,
+) -> TestResult {
+    // git checkout ${branch_name}
+    git_checkout_new_branch(branch_name, gitdir)?;
+    // echo ${word} > file-${word}
+    let word = given::a_name();
+    let pathbuf = PathBuf::from(gitdir);
+    let file = fs.base().join(pathbuf).join(&word);
+    fs.file_write(&file, &word)?;
+    // git add ${file}
+    git_add_file(gitdir, &file)?;
+    // git commit -m"Added ${file}"
+    git_commit(gitdir, &file)?;
+
+    then::push_branch(fs, gitdir, branch_name)?;
+
+    Ok(())
+}
+
+fn push_branch(
+    fs: &kxio::fs::FileSystem,
+    gitdir: &config::GitDir,
+    branch_name: &config::BranchName,
+) -> TestResult {
+    let gitrefs = fs
+        .base()
+        .join(gitdir.to_path_buf())
+        .join(".git")
+        .join("refs");
+    let local_branch = gitrefs.join("heads").join(branch_name.to_string().as_str());
+    let origin_heads = gitrefs.join("remotes").join("origin");
+    let remote_branch = origin_heads.join(branch_name.to_string().as_str());
+    let contents = fs.file_read_to_string(&local_branch)?;
+    fs.dir_create_all(&origin_heads)?;
+    fs.file_write(&remote_branch, &contents)?;
+    Ok(())
+}
+
+pub fn git_checkout_new_branch(
+    branch_name: &git_next_config::BranchName,
+    gitdir: &git_next_config::GitDir,
+) -> TestResult {
+    exec(
+        format!("git checkout -b {}", branch_name),
+        std::process::Command::new("/usr/bin/git")
+            .current_dir(gitdir.to_path_buf())
+            .args(["checkout", "-b", branch_name.to_string().as_str()])
+            .output(),
+    )?;
+    Ok(())
+}
+
+pub fn git_switch(
+    branch_name: &git_next_config::BranchName,
+    gitdir: &git_next_config::GitDir,
+) -> TestResult {
+    exec(
+        format!("git switch {}", branch_name),
+        std::process::Command::new("/usr/bin/git")
+            .current_dir(gitdir.to_path_buf())
+            .args(["switch", branch_name.to_string().as_str()])
+            .output(),
+    )
+}
+
+fn exec(label: String, output: Result<std::process::Output, std::io::Error>) -> TestResult {
+    tracing::debug!("== {label}");
+    match output {
+        Ok(output) => {
+            tracing::debug!(
+                "\nstdout:\n{}\nstderr:\n{}",
+                String::from_utf8_lossy(output.stdout.as_slice()),
+                String::from_utf8_lossy(output.stderr.as_slice())
+            );
+            Ok(())
+        }
+        Err(err) => {
+            tracing::debug!("ERROR: {err:#?}");
+            Ok(Err(err)?)
+        }
+    }
+}
+
+fn git_add_file(gitdir: &git_next_config::GitDir, file: &Path) -> TestResult {
+    exec(
+        format!("git add {file:?}"),
+        std::process::Command::new("/usr/bin/git")
+            .current_dir(gitdir.to_path_buf())
+            .args(["add", file.display().to_string().as_str()])
+            .output(),
+    )
+}
+
+fn git_commit(gitdir: &git_next_config::GitDir, file: &Path) -> TestResult {
+    exec(
+        format!(r#"git commit -m"Added {file:?}""#),
+        std::process::Command::new("/usr/bin/git")
+            .current_dir(gitdir.to_path_buf())
+            .args([
+                "commit",
+                format!(r#"-m"Added {}"#, file.display().to_string().as_str()).as_str(),
+            ])
+            .output(),
+    )
+}
+
+pub fn git_log_all(gitdir: &config::GitDir) -> TestResult {
+    exec(
+        "git log --all --oneline --decorate --graph".to_string(),
+        std::process::Command::new("/usr/bin/git")
+            .current_dir(gitdir.to_path_buf())
+            .args(["log", "--all", "--oneline", "--decorate", "--graph"])
+            .output(),
+    )
+}
+
+pub fn get_sha_for_branch(
+    fs: &kxio::fs::FileSystem,
+    gitdir: &git_next_config::GitDir,
+    branch_name: &git_next_config::BranchName,
+) -> Result<git::commit::Sha, Box<dyn std::error::Error>> {
+    let main_ref = fs
+        .base()
+        .join(gitdir.to_path_buf())
+        .join(".git")
+        .join("refs")
+        .join("heads")
+        .join(branch_name.to_string().as_str());
+    let sha = fs.file_read_to_string(&main_ref)?;
+    Ok(git::commit::Sha::new(sha.trim().to_string()))
+}

crates/repo-actor/src/tests/when.rs

@@ -0,0 +1,48 @@
+//
+use git::repository::OpenRepositoryLike;
+
+use super::*;
+
+pub fn start_actor(
+    repository_factory: git::repository::MockRepositoryFactory,
+    repo_details: git::RepoDetails,
+    forge: Box<dyn git::ForgeLike>,
+) -> (actix::Addr<RepoActor>, RepoActorLog) {
+    let (actor, log) = given::a_repo_actor(
+        repo_details,
+        Box::new(repository_factory),
+        forge,
+        given::a_network().into(),
+    );
+    (actor.start(), log)
+}
+
+pub fn start_actor_with_open_repository(
+    open_repository: MockOpenRepositoryLike,
+    repo_details: git::RepoDetails,
+    forge: Box<dyn git::ForgeLike>,
+) -> (actix::Addr<RepoActor>, RepoActorLog) {
+    let (actor, log) = given::a_repo_actor(
+        repo_details,
+        git::repository::mock(),
+        forge,
+        given::a_network().into(),
+    );
+    let actor = actor.with_open_repository(Box::new(open_repository));
+    (actor.start(), log)
+}
+
+pub fn commit_status(
+    forge: &mut git::MockForgeLike,
+    commit: git::Commit,
+    status: git::forge::commit::Status,
+) {
+    let mut commit_status_forge = git::MockForgeLike::new();
+    commit_status_forge
+        .expect_commit_status()
+        .with(mockall::predicate::eq(commit))
+        .return_once(|_| status);
+    forge
+        .expect_duplicate()
+        .return_once(move || Box::new(commit_status_forge));
+}

crates/server/src/actors/messages.rs

@@ -0,0 +1,4 @@
+use git_next_config::server::ServerConfig;
+use git_next_repo_actor::message;
+
+message!(ReceiveServerConfig wraps ServerConfig);

crates/server/src/actors/mod.rs

@@ -1,3 +1,4 @@
 pub mod file_watcher;
+pub mod messages;
 pub mod server;
 pub mod webhook;

crates/server/src/actors/server.rs

@@ -8,12 +8,14 @@ use git_next_config::{
     self as config, ForgeAlias, ForgeConfig, GitDir, RepoAlias, ServerRepoConfig,
 };
 use git_next_git::{repository::RepositoryFactory, Generation, RepoDetails};
-use git_next_repo_actor::{CloneRepo, RepoActor};
+use git_next_repo_actor::messages::CloneRepo;
+use git_next_repo_actor::RepoActor;
 use kxio::{fs::FileSystem, network::Network};
 use tracing::{error, info, warn};
 
 use crate::actors::{
     file_watcher::FileUpdated,
+    messages::ReceiveServerConfig,
     webhook::{AddWebhookRecipient, ShutdownWebhook, WebhookActor, WebhookRouter},
 };
 
@@ -39,6 +41,7 @@ pub struct Server {
     fs: FileSystem,
     net: Network,
     repository_factory: Box<dyn RepositoryFactory>,
+    sleep_duration: std::time::Duration,
 }
 impl Actor for Server {
     type Context = Context<Self>;
@@ -54,14 +57,14 @@ impl Handler<FileUpdated> for Server {
                 return;
             }
         };
-        ctx.notify(server_config);
+        ctx.notify(ReceiveServerConfig::new(server_config));
     }
 }
-impl Handler<ServerConfig> for Server {
+impl Handler<ReceiveServerConfig> for Server {
     type Result = ();
 
     #[allow(clippy::cognitive_complexity)] // TODO: (#75) reduce complexity
-    fn handle(&mut self, msg: ServerConfig, _ctx: &mut Self::Context) -> Self::Result {
+    fn handle(&mut self, msg: ReceiveServerConfig, _ctx: &mut Self::Context) -> Self::Result {
         let Ok(socket_addr) = msg.http() else {
             warn!("Unable to parse http.addr");
             return;
@@ -114,7 +117,12 @@ impl Handler<ServerConfig> for Server {
     }
 }
 impl Server {
-    pub fn new(fs: FileSystem, net: Network, repo: Box<dyn RepositoryFactory>) -> Self {
+    pub fn new(
+        fs: FileSystem,
+        net: Network,
+        repo: Box<dyn RepositoryFactory>,
+        sleep_duration: std::time::Duration,
+    ) -> Self {
         let generation = Generation::default();
         Self {
             generation,
@@ -122,6 +130,7 @@ impl Server {
             fs,
             net,
             repository_factory: repo,
+            sleep_duration,
         }
     }
     fn create_forge_data_directories(
@@ -182,6 +191,7 @@ impl Server {
         let net = self.net.clone();
         let repository_factory = self.repository_factory.duplicate();
         let generation = self.generation;
+        let sleep_duration = self.sleep_duration;
         move |(repo_alias, server_repo_config)| {
             let span = tracing::info_span!("create_actor", alias = %repo_alias, config = %server_repo_config);
             let _guard = span.enter();
@@ -207,13 +217,16 @@ impl Server {
                 &forge_config,
                 gitdir,
             );
+            let forge = git_next_forge::Forge::create(repo_details.clone(), net.clone());
             info!("Starting Repo Actor");
             let actor = RepoActor::new(
                 repo_details,
+                forge,
                 webhook.clone(),
                 generation,
                 net.clone(),
                 repository_factory.duplicate(),
+                sleep_duration,
             );
             (forge_name.clone(), repo_alias, actor)
         }

crates/server/src/actors/webhook/mod.rs

@@ -4,7 +4,7 @@ use actix::prelude::*;
 mod router;
 mod server;
 
-use git_next_config as config;
+use git_next_repo_actor::messages::WebhookNotification;
 
 use std::net::SocketAddr;
 
@@ -17,13 +17,10 @@ pub struct WebhookActor {
     socket_addr: SocketAddr,
     span: tracing::Span,
     spawn_handle: Option<actix::SpawnHandle>,
-    message_receiver: Recipient<config::WebhookMessage>,
+    message_receiver: Recipient<WebhookNotification>,
 }
 impl WebhookActor {
-    pub fn new(
-        socket_addr: SocketAddr,
-        message_receiver: Recipient<config::WebhookMessage>,
-    ) -> Self {
+    pub fn new(socket_addr: SocketAddr, message_receiver: Recipient<WebhookNotification>) -> Self {
         let span = tracing::info_span!("WebhookActor");
         Self {
             socket_addr,
@@ -37,7 +34,7 @@ impl Actor for WebhookActor {
     type Context = actix::Context<Self>;
     fn started(&mut self, ctx: &mut Self::Context) {
         let _gaurd = self.span.enter();
-        let address: Recipient<config::WebhookMessage> = self.message_receiver.clone();
+        let address: Recipient<WebhookNotification> = self.message_receiver.clone();
         let server = server::start(self.socket_addr, address);
         let spawn_handle = ctx.spawn(server.in_current_span().into_actor(self));
         self.spawn_handle.replace(spawn_handle);

crates/server/src/actors/webhook/router.rs

@@ -1,15 +1,15 @@
 //
-use std::collections::HashMap;
+use std::collections::BTreeMap;
 
 use actix::prelude::*;
 use derive_more::Constructor;
-use git_next_config::WebhookMessage;
 use git_next_config::{ForgeAlias, RepoAlias};
+use git_next_repo_actor::messages::WebhookNotification;
 use tracing::{debug, info};
 
 pub struct WebhookRouter {
     span: tracing::Span,
-    recipients: HashMap<ForgeAlias, HashMap<RepoAlias, Recipient<WebhookMessage>>>,
+    recipients: BTreeMap<ForgeAlias, BTreeMap<RepoAlias, Recipient<WebhookNotification>>>,
 }
 impl WebhookRouter {
     pub fn new() -> Self {
@@ -24,10 +24,10 @@ impl Actor for WebhookRouter {
     type Context = Context<Self>;
 }
 
-impl Handler<WebhookMessage> for WebhookRouter {
+impl Handler<WebhookNotification> for WebhookRouter {
     type Result = ();
 
-    fn handle(&mut self, msg: WebhookMessage, _ctx: &mut Self::Context) -> Self::Result {
+    fn handle(&mut self, msg: WebhookNotification, _ctx: &mut Self::Context) -> Self::Result {
         let _gaurd = self.span.enter();
         let forge_alias = msg.forge_alias();
         let repo_alias = msg.repo_alias();
@@ -48,7 +48,7 @@ impl Handler<WebhookMessage> for WebhookRouter {
 pub struct AddWebhookRecipient {
     pub forge_alias: ForgeAlias,
     pub repo_alias: RepoAlias,
-    pub recipient: Recipient<WebhookMessage>,
+    pub recipient: Recipient<WebhookNotification>,
 }
 impl Handler<AddWebhookRecipient> for WebhookRouter {
     type Result = ();
@@ -58,7 +58,7 @@ impl Handler<AddWebhookRecipient> for WebhookRouter {
         info!(forge = %msg.forge_alias, repo = %msg.repo_alias, "Register Recipient");
         if !self.recipients.contains_key(&msg.forge_alias) {
             self.recipients
-                .insert(msg.forge_alias.clone(), HashMap::new());
+                .insert(msg.forge_alias.clone(), BTreeMap::new());
         }
         self.recipients
             .get_mut(&msg.forge_alias)

crates/server/src/actors/webhook/server.rs

@@ -1,16 +1,17 @@
 //
-use std::{collections::HashMap, net::SocketAddr};
+use std::{collections::BTreeMap, net::SocketAddr};
 
 use actix::prelude::*;
 
 use config::{ForgeAlias, RepoAlias};
 use git_next_config as config;
 
+use git_next_repo_actor::messages::WebhookNotification;
 use tracing::{info, warn};
 
 pub async fn start(
     socket_addr: SocketAddr,
-    address: actix::prelude::Recipient<config::WebhookMessage>,
+    address: actix::prelude::Recipient<WebhookNotification>,
 ) {
     // start webhook server
     use warp::Filter;
@@ -22,7 +23,7 @@ pub async fn start(
         .and(warp::header::headers_cloned())
         .and(warp::body::bytes())
         .and_then(
-            |recipient: Recipient<config::WebhookMessage>,
+            |recipient: Recipient<WebhookNotification>,
              forge_alias: String,
              repo_alias: String,
              // query: String,
@@ -32,7 +33,7 @@ pub async fn start(
                 let forge_alias = ForgeAlias::new(forge_alias);
                 let repo_alias = RepoAlias::new(repo_alias);
                 let bytes = body.to_vec();
-                let body = config::webhook::message::Body::new(
+                let body = config::webhook::forge_notification::Body::new(
                     String::from_utf8_lossy(&bytes).to_string(),
                 );
                 let headers = headers
@@ -40,8 +41,13 @@ pub async fn start(
                     .filter_map(|(k, v)| {
                         k.map(|k| (k.to_string(), v.to_str().unwrap_or_default().to_string()))
                     })
-                    .collect::<HashMap<String, String>>();
-                let message = config::WebhookMessage::new(forge_alias, repo_alias, headers, body);
+                    .collect::<BTreeMap<String, String>>();
+                let message = WebhookNotification::new(config::ForgeNotification::new(
+                    forge_alias,
+                    repo_alias,
+                    headers,
+                    body,
+                ));
                 recipient
                     .try_send(message)
                     .map(|_| {

crates/server/src/config/tests.rs

@@ -1,6 +1,6 @@
 //
 use assert2::let_assert;
-use git::{repository::Direction, validation::repo::validate_repo};
+use git::{repository::Direction, validation::remotes::validate_default_remotes};
 use git_next_config::{
     self as config, ForgeType, GitDir, Hostname, RepoBranches, RepoConfig, RepoConfigSource,
     RepoPath,
@@ -46,7 +46,7 @@ fn gitdir_should_display_as_pathbuf() {
 // git.kemitix.net:kemitix/git-next
 // If the default push remote is something else, then this test will fail
 fn repo_details_find_default_push_remote_finds_correct_remote() -> Result<()> {
-    let cli_crate_dir = std::env::current_dir().map_err(git::validation::repo::Error::Io)?;
+    let cli_crate_dir = std::env::current_dir().map_err(git::validation::remotes::Error::Io)?;
     let_assert!(Some(Some(root)) = cli_crate_dir.parent().map(|p| p.parent()));
     let mut repo_details = git::common::repo_details(
         1,
@@ -77,7 +77,7 @@ fn repo_details_find_default_push_remote_finds_correct_remote() -> Result<()> {
 
 #[test]
 fn gitdir_validate_should_pass_a_valid_git_repo() -> Result<()> {
-    let cli_crate_dir = std::env::current_dir().map_err(git::validation::repo::Error::Io)?;
+    let cli_crate_dir = std::env::current_dir().map_err(git::validation::remotes::Error::Io)?;
     let_assert!(Some(Some(root)) = cli_crate_dir.parent().map(|p| p.parent()));
     let mut repo_details = git::common::repo_details(
         1,
@@ -92,7 +92,7 @@ fn gitdir_validate_should_pass_a_valid_git_repo() -> Result<()> {
         .with_hostname(Hostname::new("git.kemitix.net"));
     let gitdir = &repo_details.gitdir;
     let repository = git::repository::real().open(gitdir)?;
-    validate_repo(&*repository, &repo_details)?;
+    validate_default_remotes(&*repository, &repo_details)?;
 
     Ok(())
 }
@@ -100,7 +100,7 @@ fn gitdir_validate_should_pass_a_valid_git_repo() -> Result<()> {
 #[test]
 fn gitdir_validate_should_fail_a_git_repo_with_wrong_remote() -> Result<()> {
     let_assert!(
-        Ok(cli_crate_dir) = std::env::current_dir().map_err(git::validation::repo::Error::Io)
+        Ok(cli_crate_dir) = std::env::current_dir().map_err(git::validation::remotes::Error::Io)
     );
     let_assert!(Some(Some(root)) = cli_crate_dir.parent().map(|p| p.parent()));
     let repo_details = git::common::repo_details(
@@ -113,7 +113,7 @@ fn gitdir_validate_should_fail_a_git_repo_with_wrong_remote() -> Result<()> {
     .with_repo_path(RepoPath::new("hello/world".to_string()));
     let gitdir = &repo_details.gitdir;
     let repository = git::repository::real().open(gitdir)?;
-    let_assert!(Err(_) = validate_repo(&*repository, &repo_details));
+    let_assert!(Err(_) = validate_default_remotes(&*repository, &repo_details));
 
     Ok(())
 }

crates/server/src/lib.rs

@@ -37,11 +37,16 @@ pub fn init(fs: FileSystem) {
     }
 }
 
-pub async fn start(fs: FileSystem, net: Network, repo: Box<dyn RepositoryFactory>) {
+pub async fn start(
+    fs: FileSystem,
+    net: Network,
+    repo: Box<dyn RepositoryFactory>,
+    sleep_duration: std::time::Duration,
+) {
     init_logging();
 
     info!("Starting Server...");
-    let server = Server::new(fs.clone(), net.clone(), repo).start();
+    let server = Server::new(fs.clone(), net.clone(), repo, sleep_duration).start();
     server.do_send(FileUpdated);
 
     info!("Starting File Watcher...");