refactor: tests: expand test given modules

crates/config/src/branch_name.rs

@@ -5,4 +5,7 @@ impl BranchName {
     pub fn new(str: impl Into<String>) -> Self {
         Self(str.into())
     }
+    pub fn into_string(self) -> String {
+        self.0
+    }
 }

crates/config/src/git_dir.rs

@@ -20,6 +20,10 @@ impl GitDir {
     pub const fn pathbuf(&self) -> &PathBuf {
         &self.0
     }
+
+    pub fn into_string(self) -> String {
+        self.to_string()
+    }
 }
 impl std::fmt::Display for GitDir {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {

crates/forge-forgejo/src/tests.rs

@@ -6,18 +6,14 @@ mod forgejo {
     use super::*;
 
     use assert2::let_assert;
-    use std::collections::BTreeMap;
 
     use crate::ForgeJo;
-    use config::{
-        webhook::message::Body, ForgeAlias, ForgeConfig, ForgeType, GitDir, RepoAlias,
-        RepoBranches, ServerRepoConfig, WebhookAuth, WebhookMessage,
-    };
     use git::ForgeLike as _;
 
     #[test]
     fn should_return_name() {
-        let forge = given::a_forgejo_forge(&given::repo_details(), given::a_network());
+        let fs = given::a_filesystem();
+        let forge = given::a_forgejo_forge(&given::repo_details(&fs), given::a_network());
         assert_eq!(forge.name(), "forgejo");
     }
 
@@ -27,35 +23,40 @@ mod forgejo {
 
         #[test]
         fn should_return_true_with_valid_header() {
-            let forge = given::a_forgejo_forge(&given::repo_details(), given::a_network());
+            let fs = given::a_filesystem();
+            let forge = given::a_forgejo_forge(&given::repo_details(&fs), given::a_network());
             let auth = given::a_webhook_auth();
             let message = given::a_webhook_message(given::Header::Valid(auth.clone()));
             assert!(forge.is_message_authorised(&message, &auth));
         }
         #[test]
         fn should_return_false_with_missing_header() {
-            let forge = given::a_forgejo_forge(&given::repo_details(), given::a_network());
+            let fs = given::a_filesystem();
+            let forge = given::a_forgejo_forge(&given::repo_details(&fs), given::a_network());
             let auth = given::a_webhook_auth();
             let message = given::a_webhook_message(given::Header::Missing);
             assert!(!forge.is_message_authorised(&message, &auth));
         }
         #[test]
         fn should_return_false_with_non_basic_prefix() {
-            let forge = given::a_forgejo_forge(&given::repo_details(), given::a_network());
+            let fs = given::a_filesystem();
+            let forge = given::a_forgejo_forge(&given::repo_details(&fs), given::a_network());
             let auth = given::a_webhook_auth();
             let message = given::a_webhook_message(given::Header::NonBasic);
             assert!(!forge.is_message_authorised(&message, &auth));
         }
         #[test]
         fn should_return_false_with_non_ulid_value() {
-            let forge = given::a_forgejo_forge(&given::repo_details(), given::a_network());
+            let fs = given::a_filesystem();
+            let forge = given::a_forgejo_forge(&given::repo_details(&fs), given::a_network());
             let auth = given::a_webhook_auth();
             let message = given::a_webhook_message(given::Header::NonUlid);
             assert!(!forge.is_message_authorised(&message, &auth));
         }
         #[test]
         fn should_return_false_with_wrong_ulid_value() {
-            let forge = given::a_forgejo_forge(&given::repo_details(), given::a_network());
+            let fs = given::a_filesystem();
+            let forge = given::a_forgejo_forge(&given::repo_details(&fs), given::a_network());
             let auth = given::a_webhook_auth();
             let message = given::a_webhook_message(given::Header::WrongUlid);
             assert!(!forge.is_message_authorised(&message, &auth));
@@ -70,12 +71,13 @@ mod forgejo {
 
         #[test]
         fn should_parse_valid_body() {
-            let forge = given::a_forgejo_forge(&given::repo_details(), given::a_network());
+            let fs = given::a_filesystem();
+            let forge = given::a_forgejo_forge(&given::repo_details(&fs), given::a_network());
             let repo_branches = given::repo_branches();
             let next = repo_branches.next();
             let sha = given::a_name();
             let message = given::a_name();
-            let body = Body::new(
+            let body = config::webhook::message::Body::new(
                 json!({"ref":format!("refs/heads/{next}"),"after":sha,"head_commit":{"message":message}})
                     .to_string(),
             );
@@ -90,8 +92,9 @@ mod forgejo {
 
         #[test]
         fn should_error_invalid_body() {
-            let forge = given::a_forgejo_forge(&given::repo_details(), given::a_network());
+            let fs = given::a_filesystem();
-            let body = Body::new(r#"{"type":"invalid"}"#.to_string());
+            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_assert!(Err(_) = forge.parse_webhook_body(&body));
         }
     }
@@ -104,7 +107,8 @@ mod forgejo {
 
         #[tokio::test]
         async fn should_return_pass_for_success() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             let commit = given::a_commit();
             let mut net = given::a_network();
             given::a_commit_state("success", &mut net, &repo_details, &commit);
@@ -113,7 +117,8 @@ mod forgejo {
         }
         #[tokio::test]
         async fn should_return_pending_for_pending() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             let commit = given::a_commit();
             let mut net = given::a_network();
             given::a_commit_state("pending", &mut net, &repo_details, &commit);
@@ -122,7 +127,8 @@ mod forgejo {
         }
         #[tokio::test]
         async fn should_return_fail_for_failure() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             let commit = given::a_commit();
             let mut net = given::a_network();
             given::a_commit_state("failure", &mut net, &repo_details, &commit);
@@ -131,7 +137,8 @@ mod forgejo {
         }
         #[tokio::test]
         async fn should_return_fail_for_error() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             let commit = given::a_commit();
             let mut net = given::a_network();
             given::a_commit_state("error", &mut net, &repo_details, &commit);
@@ -140,7 +147,8 @@ mod forgejo {
         }
         #[tokio::test]
         async fn should_return_pending_for_blank() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             let commit = given::a_commit();
             let mut net = given::a_network();
             given::a_commit_state("", &mut net, &repo_details, &commit);
@@ -149,7 +157,8 @@ mod forgejo {
         }
         #[tokio::test]
         async fn should_return_pending_for_no_statuses() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             let commit = given::a_commit();
             let mut net = given::a_network();
             net.add_get_response(
@@ -162,14 +171,15 @@ mod forgejo {
         }
         #[tokio::test]
         async fn should_return_pending_for_network_error() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             let commit = given::a_commit();
             let mut net = given::a_network();
             net.add_get_error(
                 &given::a_commit_status_url(&repo_details, &commit),
                 "boom today",
             );
-            let forge = given::a_forgejo_forge(&given::repo_details(), net);
+            let forge = given::a_forgejo_forge(&repo_details, net);
             assert_eq!(forge.commit_status(&commit).await, Status::Pending);
         }
     }
@@ -184,7 +194,8 @@ mod forgejo {
 
         #[tokio::test]
         async fn should_return_a_list_of_matching_webhooks() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             let webhook_url = given::any_webhook_url();
             let hostname = repo_details.forge.hostname();
             let repo_path = &repo_details.repo_path;
@@ -228,7 +239,8 @@ mod forgejo {
 
         #[tokio::test]
         async fn should_return_any_network_error() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             let webhook_url = given::a_webhook_url(&given::a_forge_alias(), &given::a_repo_alias());
             let hostname = repo_details.forge.hostname();
             let repo_path = &repo_details.repo_path;
@@ -255,7 +267,8 @@ mod forgejo {
 
         #[tokio::test]
         async fn should_delete_webhook() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             let hostname = repo_details.forge.hostname();
             let repo_path = &repo_details.repo_path;
             use secrecy::ExposeSecret;
@@ -279,7 +292,8 @@ mod forgejo {
 
         #[tokio::test]
         async fn should_return_error_on_network_error() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             let hostname = repo_details.forge.hostname();
             let repo_path = &repo_details.repo_path;
             use secrecy::ExposeSecret;
@@ -316,7 +330,8 @@ mod forgejo {
 
         #[tokio::test]
         async fn should_register_a_new_webhook() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             assert!(
                 repo_details.repo_config.is_some(),
                 "repo_details needs to have repo_config for this test"
@@ -357,7 +372,8 @@ mod forgejo {
 
         #[tokio::test]
         async fn should_abort_if_repo_config_missing() {
-            let mut repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let mut repo_details = given::repo_details(&fs);
             repo_details.repo_config.take();
             assert!(
                 repo_details.repo_config.is_none(),
@@ -376,7 +392,8 @@ mod forgejo {
 
         #[tokio::test]
         async fn should_unregister_existing_webhooks_before_registering() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             assert!(
                 repo_details.repo_config.is_some(),
                 "repo_details needs to have repo_config for this test"
@@ -428,7 +445,8 @@ mod forgejo {
 
         #[tokio::test]
         async fn should_return_error_if_empty_network_response() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             assert!(
                 repo_details.repo_config.is_some(),
                 "repo_details needs to have repo_config for this test"
@@ -468,7 +486,8 @@ mod forgejo {
 
         #[tokio::test]
         async fn should_return_error_on_network_error() {
-            let repo_details = given::repo_details();
+            let fs = given::a_filesystem();
+            let repo_details = given::repo_details(&fs);
             assert!(
                 repo_details.repo_config.is_some(),
                 "repo_details needs to have repo_config for this test"
@@ -568,11 +587,11 @@ mod forgejo {
         }
     }
     mod given {
+        #![allow(dead_code)]
+
         use std::collections::HashMap;
 
-        use git_next_config::{server::Webhook, WebhookId};
         use kxio::network::{MockNetwork, StatusCode};
-        use rand::RngCore;
         use serde_json::json;
 
         use super::*;
@@ -604,25 +623,23 @@ mod forgejo {
             )
         }
 
-        pub fn a_webhook_auth() -> WebhookAuth {
-            WebhookAuth::generate()
-        }
-
         pub enum Header {
-            Valid(WebhookAuth),
+            Valid(config::WebhookAuth),
             Missing,
             NonBasic,
             NonUlid,
             WrongUlid,
         }
-        pub fn a_webhook_message(header: Header) -> WebhookMessage {
+
-            WebhookMessage::new(
+        pub fn a_webhook_message(header: Header) -> config::WebhookMessage {
+            config::WebhookMessage::new(
                 given::a_forge_alias(),
                 given::a_repo_alias(),
                 given::webhook_headers(header),
                 given::a_webhook_message_body(),
             )
         }
+
         pub fn webhook_headers(header: Header) -> HashMap<String, String> {
             let mut headers = HashMap::new();
             match header {
@@ -639,25 +656,12 @@ mod forgejo {
                 Header::WrongUlid => {
                     headers.insert(
                         "authorization".to_string(),
-                        format!("Basic {}", WebhookAuth::generate()),
+                        format!("Basic {}", config::WebhookAuth::generate()),
                     );
                 }
             }
             headers
         }
-        pub fn a_webhook_message_body() -> Body {
-            Body::new(a_name())
-        }
-        pub fn a_commit() -> git::Commit {
-            git::Commit::new(
-                git::commit::Sha::new(a_name()),
-                git::commit::Message::new(a_name()),
-            )
-        }
-
-        pub fn repo_branches() -> RepoBranches {
-            RepoBranches::new(a_name(), a_name(), a_name())
-        }
 
         pub fn a_forgejo_forge(
             repo_details: &git::RepoDetails,
@@ -665,49 +669,45 @@ mod forgejo {
         ) -> ForgeJo {
             ForgeJo::new(repo_details.clone(), net.into())
         }
-        pub fn repo_details() -> git::RepoDetails {
+
-            git::RepoDetails::new(
+        pub fn a_forgejo_webhook_id() -> i64 {
-                git::Generation::new(),
+            use rand::RngCore as _;
-                &a_repo_alias(),
+            rand::thread_rng().next_u32().into()
-                &ServerRepoConfig::new(
-                    format!("{}/{}", a_name(), a_name()), // repo path: owner/repo
-                    a_name(),
-                    None,
-                    Some(a_name()),
-                    Some(a_name()),
-                    Some(a_name()),
-                ),
-                &a_forge_alias(),
-                &ForgeConfig::new(
-                    ForgeType::ForgeJo,
-                    a_name(),
-                    a_name(),
-                    a_name(),
-                    BTreeMap::default(),
-                ),
-                GitDir::default(),
-            )
         }
 
-        pub fn a_forge_alias() -> ForgeAlias {
+        pub fn a_webhook_auth() -> config::WebhookAuth {
-            ForgeAlias::new(a_name())
+            config::WebhookAuth::generate()
         }
 
-        pub fn a_repo_alias() -> RepoAlias {
+        pub fn a_webhook_message_body() -> config::webhook::message::Body {
-            RepoAlias::new(a_name())
+            config::webhook::message::Body::new(a_name())
         }
+
+        pub fn repo_branches() -> config::RepoBranches {
+            config::RepoBranches::new(a_name(), a_name(), a_name())
+        }
+
+        pub fn a_forge_alias() -> config::ForgeAlias {
+            config::ForgeAlias::new(a_name())
+        }
+
+        pub fn a_repo_alias() -> config::RepoAlias {
+            config::RepoAlias::new(a_name())
+        }
+
         pub fn a_network() -> kxio::network::MockNetwork {
             kxio::network::MockNetwork::new()
         }
 
         pub fn a_webhook_url(
-            forge_alias: &ForgeAlias,
+            forge_alias: &config::ForgeAlias,
-            repo_alias: &RepoAlias,
+            repo_alias: &config::RepoAlias,
         ) -> git_next_config::server::WebhookUrl {
-            Webhook::new(a_name()).url(forge_alias, repo_alias)
+            config::server::Webhook::new(a_name()).url(forge_alias, repo_alias)
         }
+
         pub fn any_webhook_url() -> git_next_config::server::WebhookUrl {
-            given::a_webhook_url(&given::a_forge_alias(), &given::a_repo_alias())
+            a_webhook_url(&a_forge_alias(), &a_repo_alias())
         }
 
         pub fn a_name() -> String {
@@ -723,12 +723,103 @@ mod forgejo {
             generate(5)
         }
 
-        pub fn a_webhook_id() -> WebhookId {
+        pub fn a_webhook_id() -> config::WebhookId {
-            WebhookId::new(given::a_name())
+            config::WebhookId::new(a_name())
         }
 
-        pub fn a_forgejo_webhook_id() -> i64 {
+        pub fn a_github_webhook_id() -> i64 {
+            use rand::RngCore as _;
             rand::thread_rng().next_u32().into()
         }
+
+        pub fn a_branch_name() -> config::BranchName {
+            config::BranchName::new(a_name())
+        }
+
+        pub fn a_git_dir(fs: &kxio::fs::FileSystem) -> config::GitDir {
+            let dir_name = a_name();
+            let dir = fs.base().join(dir_name);
+            config::GitDir::new(&dir)
+        }
+
+        pub fn a_forge_config() -> config::ForgeConfig {
+            config::ForgeConfig::new(
+                config::ForgeType::MockForge,
+                a_name(),
+                a_name(),
+                a_name(),
+                Default::default(), // no repos
+            )
+        }
+
+        pub fn a_server_repo_config() -> config::ServerRepoConfig {
+            let main = a_branch_name().into_string();
+            let next = a_branch_name().into_string();
+            let dev = a_branch_name().into_string();
+            config::ServerRepoConfig::new(
+                format!("{}/{}", a_name(), a_name()),
+                main.clone(),
+                None,
+                Some(main),
+                Some(next),
+                Some(dev),
+            )
+        }
+
+        pub fn a_commit() -> git::Commit {
+            git::Commit::new(a_commit_sha(), a_commit_message())
+        }
+
+        pub fn a_commit_with_message(message: &git::commit::Message) -> git::Commit {
+            git::Commit::new(a_commit_sha(), message.to_owned())
+        }
+
+        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_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();
+            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::new();
+            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);
+            git::RepoDetails::new(
+                generation,
+                &repo_alias,
+                &server_repo_config,
+                &forge_alias,
+                &forge_config,
+                gitdir,
+            )
+        }
     }
 }

crates/git/Cargo.toml

@@ -54,6 +54,7 @@ actix = { workspace = true }
 [dev-dependencies]
 # Testing
 assert2 = { workspace = true }
+rand = { workspace = true }
 
 [lints.clippy]
 nursery = { level = "warn", priority = -1 }

crates/git/src/commit.rs

@@ -52,6 +52,7 @@ pub mod log {
     }
 
     impl From<String> for Error {
+        #[cfg(not(tarpaulin_include))]
         fn from(e: String) -> Self {
             Self::Gix(e)
         }

crates/git/src/file.rs

@@ -52,26 +52,30 @@ pub enum Error {
     TryId,
 }
 
-impl From<gix::reference::find::existing::Error> for Error {
+mod gix_errors {
-    fn from(value: gix::reference::find::existing::Error) -> Self {
+    #![cfg(not(tarpaulin_include))] // third-party library errors
-        Self::FindReference(value.to_string())
+    use super::Error;
+    impl From<gix::reference::find::existing::Error> for Error {
+        fn from(value: gix::reference::find::existing::Error) -> Self {
+            Self::FindReference(value.to_string())
+        }
     }
-}
 
-impl From<gix::object::commit::Error> for Error {
+    impl From<gix::object::commit::Error> for Error {
-    fn from(value: gix::object::commit::Error) -> Self {
+        fn from(value: gix::object::commit::Error) -> Self {
-        Self::NoTreeInCommit(value.to_string())
+            Self::NoTreeInCommit(value.to_string())
+        }
     }
-}
 
-impl From<gix::object::find::existing::Error> for Error {
+    impl From<gix::object::find::existing::Error> for Error {
-    fn from(value: gix::object::find::existing::Error) -> Self {
+        fn from(value: gix::object::find::existing::Error) -> Self {
-        Self::FindObject(value.to_string())
+            Self::FindObject(value.to_string())
+        }
     }
-}
 
-impl From<std::string::FromUtf8Error> for Error {
+    impl From<std::string::FromUtf8Error> for Error {
-    fn from(value: std::string::FromUtf8Error) -> Self {
+        fn from(value: std::string::FromUtf8Error) -> Self {
-        Self::NonUtf8Blob(value.to_string())
+            Self::NonUtf8Blob(value.to_string())
+        }
     }
 }

crates/git/src/tests.rs

@@ -1,22 +1,36 @@
+use crate as git;
+
 mod commit {
-    use crate::{commit, Commit};
+    use super::*;
 
     #[test]
     fn should_return_sha() {
-        let sha = commit::Sha::new("sha".to_string());
+        let sha = given::a_commit_sha();
-        let message = commit::Message::new("message".to_string());
+        let commit = given::a_commit_with_sha(&sha);
-        let commit = Commit::new(sha.clone(), message);
 
         assert_eq!(commit.sha(), &sha);
     }
     #[test]
     fn should_return_message() {
-        let sha = commit::Sha::new("sha".to_string());
+        let message = given::a_commit_message();
-        let message = commit::Message::new("message".to_string());
+        let commit = given::a_commit_with_message(&message);
-        let commit = Commit::new(sha, message.clone());
 
         assert_eq!(commit.message(), &message);
     }
+    #[test]
+    fn should_convert_from_push() {
+        let sha = given::a_commit_sha();
+        let message = given::a_commit_message();
+        let push = given::a_webhook_push(&sha, &message);
+        let commit = git::Commit::from(push);
+
+        let expected = git::Commit::new(
+            git::commit::Sha::new(sha.to_string()),
+            git::commit::Message::new(message.to_string()),
+        );
+
+        assert_eq!(commit, expected);
+    }
 }
 mod generation {
     use crate::Generation;
@@ -160,3 +174,186 @@ mod repo_details {
         );
     }
 }
+// mod branch {
+//     use super::*;
+//     use assert2::let_assert;
+//     #[test]
+//     fn reset_should_fetch_then_push() {
+//         // let repository = given::a_mock_open_repository();
+//         let fs = given::a_filesystem();
+//         let repo_detauls = given::repo_details(&fs);
+//         let repository = given::a_mock_open_repository();
+//         let_assert!(
+//             Ok(result) = git::branch::reset(
+//                 repository,
+//                 &repo_details,
+//                 &repo_details.branch,
+//                 git_ref,
+//                 force
+//             )
+//         );
+//     }
+// }
+mod given {
+    #![allow(dead_code)]
+    //
+    use crate as git;
+    use config::{
+        BranchName, ForgeAlias, ForgeConfig, ForgeType, GitDir, RepoAlias, RepoBranches,
+        ServerRepoConfig, WebhookAuth, WebhookId,
+    };
+    use git_next_config as config;
+
+    use rand::RngCore;
+
+    use crate::RepoDetails;
+
+    pub fn a_webhook_auth() -> WebhookAuth {
+        WebhookAuth::generate()
+    }
+
+    pub enum Header {
+        Valid(WebhookAuth, config::webhook::message::Body),
+        Missing,
+        Invalid,
+    }
+
+    pub fn a_webhook_message_body() -> config::webhook::message::Body {
+        config::webhook::message::Body::new(a_name())
+    }
+
+    pub fn repo_branches() -> RepoBranches {
+        RepoBranches::new(a_name(), a_name(), 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_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() -> BranchName {
+        BranchName::new(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().into_string();
+        let next = a_branch_name().into_string();
+        let dev = a_branch_name().into_string();
+        ServerRepoConfig::new(
+            format!("{}/{}", a_name(), a_name()),
+            main.clone(),
+            None,
+            Some(main),
+            Some(next),
+            Some(dev),
+        )
+    }
+
+    pub fn a_commit() -> git::Commit {
+        git::Commit::new(a_commit_sha(), a_commit_message())
+    }
+
+    pub fn a_commit_with_message(message: &git::commit::Message) -> git::Commit {
+        git::Commit::new(a_commit_sha(), message.to_owned())
+    }
+
+    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_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();
+        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::new();
+        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,
+        )
+    }
+}