Added tests for .delete_thread_subscriptions() (#620)

tests/notifications_threads_test.rs

@@ -0,0 +1,92 @@
+mod mock_error;
+
+use mock_error::setup_error_handler;
+use octocrab::Octocrab;
+use wiremock::{
+    matchers::{method, path},
+    Mock, MockServer, ResponseTemplate,
+};
+
+async fn setup_delete_thread_sub_api(template: ResponseTemplate) -> MockServer {
+    let thread_id = 123u64;
+
+    let mock_server = MockServer::start().await;
+
+    Mock::given(method("DELETE"))
+        .and(path(format!(
+            "/notifications/threads/{thread_id}/subscription"
+        )))
+        .respond_with(template.clone())
+        .mount(&mock_server)
+        .await;
+
+    setup_error_handler(
+        &mock_server,
+        &format!("DELETE on /notifications/threads/{thread_id}/subscription was not received"),
+    )
+    .await;
+    mock_server
+}
+
+fn setup_octocrab(uri: &str) -> Octocrab {
+    Octocrab::builder().base_uri(uri).unwrap().build().unwrap()
+}
+
+const THREAD_ID: u64 = 123u64;
+
+#[tokio::test]
+async fn delete_thread_subscription_204() {
+    let template = ResponseTemplate::new(204);
+    let mock_server = setup_delete_thread_sub_api(template).await;
+    let client = setup_octocrab(&mock_server.uri());
+
+    let result = client
+        .activity()
+        .notifications()
+        .delete_thread_subscription(THREAD_ID.into())
+        .await;
+
+    assert!(
+        result.is_ok(),
+        "expected successful result, got error: {:#?}",
+        result
+    );
+}
+
+#[tokio::test]
+async fn delete_thread_subscription_404() {
+    let template = ResponseTemplate::new(404);
+    let mock_server = setup_delete_thread_sub_api(template).await;
+    let client = setup_octocrab(&mock_server.uri());
+
+    let result = client
+        .activity()
+        .notifications()
+        .delete_thread_subscription(THREAD_ID.into())
+        .await;
+
+    assert!(
+        result.is_err(),
+        "expected error result, got success: {:#?}",
+        result
+    );
+}
+
+#[tokio::test]
+async fn delete_thread_subscription_500() {
+    let template = ResponseTemplate::new(500);
+    let mock_server = setup_delete_thread_sub_api(template).await;
+    let client = setup_octocrab(&mock_server.uri());
+
+    let result = client
+        .activity()
+        .notifications()
+        .delete_thread_subscription(THREAD_ID.into())
+        .await;
+
+    assert!(
+        result.is_err(),
+        "expected error result, got success: {:#?}",
+        result
+    );
+}