fix(net)!: remove Drop assertions for any unused plans

Tests should use the existing `assert_no_unused_plans` method available
on both `Net` and `MockNet`.

This removes the problem of assetions being applied early when there are
multiple clones of the `Net` or `MockNet` and one of them is dropped.

feat(net): add `MockNet:;plans_left`

tests(net): add tests for MockNet::try_from

src/net/system.rs

@@ -553,6 +553,7 @@ fn basic_auth_header_value(
 pub struct MockNet {
     plans: Rc<RefCell<Plans>>,
 }
+
 impl MockNet {
     /// Helper to create a default [Client].
     ///
@@ -617,6 +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 {
@@ -628,47 +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() {

tests/net.rs

@@ -642,3 +642,57 @@ 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());
+}