tests(net): add explicit tests for assert_no_unused_plans

Signed-off-by: ForgeJo Action. See: https://git.kemitix.net/kemitix/rust <action@git.kemitix.net>

CHANGELOG.md

@@ -7,6 +7,20 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [5.0.0](https://git.kemitix.net/kemitix/kxio/compare/v4.0.1...v5.0.0) - 2024-12-29
+
+### Added
+
+- *(net)* add tracing to matching each criteria for mock request
+
+### Fixed
+
+- *(net)* [**breaking**] remove Drop assertions for any unused plans
+
+### Other
+
+- *(print)* add details to readme and an example
+
 ## [4.0.1](https://git.kemitix.net/kemitix/kxio/compare/v4.0.0...v4.0.1) - 2024-12-25
 
 ### Fixed

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "kxio"
-version = "4.0.1"
+version = "5.0.0"
 edition = "2021"
 authors = ["Paul Campbell <pcampbell@kemitix.net>"]
 description = "Provides injectable Filesystem and Network resources to make code more testable"

README.md

@@ -1,14 +1,15 @@
 # kxio
 
-`kxio` is a Rust library that provides injectable `FileSystem` and `Network`
-resources to enhance the testability of your code. By abstracting system-level
-interactions, `kxio` enables easier mocking and testing of code that relies on
-file system and network operations.
+`kxio` is a Rust library that provides injectable `FileSystem`, `Network` and
+`Print` resources to enhance the testability of your code. By abstracting
+system-level interactions, `kxio` enables easier mocking and testing of code
+that relies on file system and network operations.
 
 ## Features
 
 - **Filesystem Abstraction**
 - **Network Abstraction**
+- **Print Abstraction**
 - **Enhanced Testability**
 
 ## Filesystem
@@ -30,6 +31,27 @@ The Network module offers a testable interface over the `reqwest` crate. For
 comprehensive documentation and usage examples, please refer to
 <https://docs.rs/kxio/latest/kxio/net/>
 
+## Print
+
+The Print module provides three implementations of the `Printer` trait:
+
+- `StandardPrint` - behaves as normal, printing to `STDOUT` and `STDERR`
+- `NullPrint` - swallows all prints, outputting nothing
+- `TestPrint` - captures all print output and makes it available for assertions in tests
+
+It also provides macros to use with each:
+
+- `kxprintln`
+- `kxprint`
+- `kxeprintln`
+- `kxeprint`
+
+They are analogous to the `std` macros: `println`, `print`, `eprintln` and `eprint` respectively.
+
+Each of the `kx{e}print{ln}` macros takes a reference to an instance of the `Printer` trait as the first parameter.
+
+For comprehensive documentation and usage examples, please refer to <https://docs.rs/kxio/latest/kxio/print/>
+
 ## Getting Started
 
 Add `kxio` to your `Cargo.toml`:

examples/get.rs

@@ -151,6 +151,8 @@ mod tests {
 
         assert_eq!(contents, "contents");
 
+        net.assert_no_unused_plans();
+
         // not needed for this test, but should it be needed, we can avoid checking for any
         // unconsumed request matches.
         // let mock_net = kxio::net::MockNet::try_from(net).expect("recover mock");

src/net/system.rs

@@ -32,15 +32,17 @@ struct Plan {
     response: reqwest::Response,
 }
 impl Plan {
-    #[tracing::instrument]
+    #[tracing::instrument(skip(self))]
     fn matches(&self, request: &Request) -> bool {
         let url = request.url();
         let is_match =
             self.match_request.iter().all(|criteria| match criteria {
                 MatchRequest::Body(body) => {
+                    tracing::trace!(body = ?request.body(), "BODY");
                     request.body().and_then(reqwest::Body::as_bytes) == Some(body)
                 }
                 MatchRequest::Header { name, value } => {
+                    tracing::trace!(%name, %value, "HEADER");
                     request
                         .headers()
                         .iter()
@@ -51,13 +53,29 @@ impl Plan {
                             request_header_name.as_str() == name && request_header_value == value
                         })
                 }
-                MatchRequest::Method(method) => request.method() == http::Method::from(method),
-                MatchRequest::Scheme(scheme) => url.scheme() == scheme,
-                MatchRequest::Host(host) => url.host_str() == Some(host),
-                MatchRequest::Path(path) => url.path() == path,
-                MatchRequest::Fragment(fragment) => url.fragment() == Some(fragment),
+                MatchRequest::Method(method) => {
+                    tracing::trace!(%method, "METHOD");
+                    request.method() == http::Method::from(method)
+                }
+                MatchRequest::Scheme(scheme) => {
+                    tracing::trace!(%scheme, "SCHEME");
+                    url.scheme() == scheme
+                }
+                MatchRequest::Host(host) => {
+                    tracing::trace!(%host,"HOST");
+                    url.host_str() == Some(host)
+                }
+                MatchRequest::Path(path) => {
+                    tracing::trace!(%path,"PATH");
+                    url.path() == path
+                }
+                MatchRequest::Fragment(fragment) => {
+                    tracing::trace!(%fragment,"FRAGMENT");
+                    url.fragment() == Some(fragment)
+                }
                 MatchRequest::Query { name, value } => url.query_pairs().into_iter().any(
                     |(request_query_name, request_query_value)| {
+                        tracing::trace!(%name, %value, "QUERY");
                         request_query_name.as_ref() == name && request_query_value.as_ref() == value
                     },
                 ),
@@ -384,7 +402,7 @@ impl<'net> ReqBuilder<'net> {
         let client = self.net.client();
         // URL
         let mut url = self.url;
-        tracing::trace!(?url);
+        tracing::trace!(%url);
         // Query Parameters
         if !self.query.is_empty() {
             url.push('?');
@@ -535,6 +553,7 @@ fn basic_auth_header_value(
 pub struct MockNet {
     plans: Rc<RefCell<Plans>>,
 }
+
 impl MockNet {
     /// Helper to create a default [Client].
     ///
@@ -599,6 +618,11 @@ impl MockNet {
         tracing::debug!("reset plans");
         self.plans.take();
     }
+
+    /// Returns the number of plans added and not yet matched against.
+    pub fn plans_left(&self) -> usize {
+        self.plans.borrow().len()
+    }
 }
 impl From<MockNet> for Net {
     fn from(mock_net: MockNet) -> Self {
@@ -610,47 +634,6 @@ impl From<MockNet> for Net {
     }
 }
 
-impl Drop for MockNet {
-    #[cfg_attr(test, mutants::skip)]
-    #[tracing::instrument]
-    fn drop(&mut self) {
-        // Don't assert during panic to avoid double panic
-        if std::thread::panicking() {
-            return;
-        }
-        let unused = self.plans.take();
-        if !unused.is_empty() {
-            log_unused_plans(&unused);
-            assert!(
-                unused.is_empty(),
-                "{} expected requests were not made",
-                unused.len()
-            );
-        }
-    }
-}
-impl Drop for Net {
-    #[cfg_attr(test, mutants::skip)]
-    #[tracing::instrument]
-    fn drop(&mut self) {
-        // Don't assert during panic to avoid double panic
-        if std::thread::panicking() {
-            return;
-        }
-        if let Some(plans) = &self.plans {
-            let unused = plans.try_lock().expect("lock plans").take();
-            if !unused.is_empty() {
-                log_unused_plans(&unused);
-                assert!(
-                    unused.is_empty(),
-                    "{} expected requests were not made",
-                    unused.len()
-                );
-            }
-        }
-    }
-}
-
 #[cfg_attr(test, mutants::skip)]
 fn log_unused_plans(unused: &[Plan]) {
     if !unused.is_empty() {

src/print/macros.rs

@@ -1,3 +1,5 @@
+/// Macro to print the expression to the `Printer` with a trailing newline.
+///
 #[macro_export]
 macro_rules! kxprintln {
     ($printer:expr, $($arg:tt)*) => {{

src/print/mod.rs

@@ -11,6 +11,7 @@
 //!
 //! ```
 //! use kxio::print::{Print, StandardPrint};
+//! use kxio::{kxeprintln, kxprintln};
 //!
 //! fn print_hello(printer: &impl Print) {
 //!     printer.println("Hello, World!");
@@ -18,6 +19,8 @@
 //!
 //! let printer = StandardPrint;
 //! print_hello(&printer);
+//! kxprintln!(&printer, "Hello, world!");
+//! kxeprintln!(&printer, "Terminating!");
 //! ```
 
 mod macros;

tests/net.rs

@@ -53,6 +53,52 @@ async fn test_get_url() {
     assert_eq!(response.bytes().await.expect("response body"), "Get OK");
 }
 
+#[tokio::test]
+async fn test_when_all_plans_match_assert_is_ok() {
+    //given
+    let mock_net = kxio::net::mock();
+
+    let url = "https://www.example.com";
+
+    mock_net
+        .on()
+        .get(url)
+        .respond(StatusCode::OK)
+        .body("Get OK")
+        .expect("mock");
+    let net = Net::from(mock_net);
+
+    //when
+    let _response = net.get(url).send().await.expect("response");
+
+    //then
+    net.assert_no_unused_plans();
+}
+
+#[tokio::test]
+#[should_panic]
+async fn test_when_not_all_plans_match_assert_fails() {
+    //given
+    let mock_net = kxio::net::mock();
+
+    let url = "https://www.example.com";
+
+    mock_net
+        .on()
+        .get(url)
+        .respond(StatusCode::OK)
+        .body("Get OK")
+        .expect("mock");
+    let net = Net::from(mock_net);
+
+    //when
+    // request is not made
+    // let _response = net.get(url).send().await.expect("response");
+
+    //then
+    net.assert_no_unused_plans();
+}
+
 #[tokio::test]
 async fn test_post_url() {
     //given
@@ -642,3 +688,57 @@ async fn test_get_with_user_agent() {
     assert_eq!(response.status(), StatusCode::FORBIDDEN);
     assert_eq!(valid.status(), StatusCode::OK);
 }
+
+#[test]
+fn test_reset_removes_all_plans() {
+    //given
+    let mock_net = kxio::net::mock();
+    let url = "https://www.example.com/path";
+
+    mock_net
+        .on()
+        .get(url)
+        .user_agent("007")
+        .respond(StatusCode::OK)
+        .mock()
+        .expect("mock");
+    mock_net
+        .on()
+        .get(url)
+        .user_agent("orange")
+        .respond(StatusCode::FORBIDDEN)
+        .mock()
+        .expect("mock");
+    assert_eq!(mock_net.plans_left(), 2);
+
+    //when
+    mock_net.reset();
+
+    //then
+    assert_eq!(mock_net.plans_left(), 0);
+}
+
+#[tokio::test]
+async fn try_from_with_net_from_a_mock_net() {
+    //given
+    let mock_net = kxio::net::mock();
+    let net = Net::from(mock_net);
+
+    //when
+    let result = MockNet::try_from(net).await;
+
+    //then
+    assert!(result.is_ok());
+}
+
+#[tokio::test]
+async fn try_from_with_net_not_from_a_mock_net() {
+    //given
+    let net = kxio::net::new();
+
+    //when
+    let result = MockNet::try_from(net).await;
+
+    //then
+    assert!(result.is_err());
+}