Resolving issue with deleting reactions from issues. (#555)

* Resolving issue with deleting reactions from issues.
Issue: manchicken#182

* Reverting changes to CHANGELOG.md since that's automated.

src/api/issues.rs

@@ -1061,7 +1061,9 @@ impl<'octo> IssueHandler<'octo> {
             reaction_id = reaction_id.into(),
         );
 
-        self.crab.delete(route, None::<&()>).await
+        self.crab._delete(route, None::<&()>).await?;
+
+        Ok(())
     }
 
     /// Deletes a reaction for an issue comment.

tests/issues_reactions_delete_test.rs

@@ -0,0 +1,60 @@
+mod mock_error;
+
+use mock_error::setup_error_handler;
+use octocrab::Octocrab;
+use wiremock::{
+    matchers::{method, path},
+    Mock, MockServer, ResponseTemplate,
+};
+
+async fn setup_remove_reaction_api(template: ResponseTemplate) -> MockServer {
+    let owner: &str = "org";
+    let repo: &str = "some-repo";
+    let issue_number: u64 = 123;
+    let reaction_id: u64 = 456;
+
+    let mock_server = MockServer::start().await;
+
+    Mock::given(method("DELETE"))
+        .and(path(format!(
+            "/repos/{owner}/{repo}/issues/{issue_number}/reactions/{reaction_id}"
+        )))
+        .respond_with(template.clone())
+        .mount(&mock_server)
+        .await;
+
+    setup_error_handler(
+        &mock_server,
+        &format!("DELETE on /repos/{owner}/{repo}/issues/{issue_number}/reactions/{reaction_id} was not received"),
+    )
+    .await;
+    mock_server
+}
+
+fn setup_octocrab(uri: &str) -> Octocrab {
+    Octocrab::builder().base_uri(uri).unwrap().build().unwrap()
+}
+
+const OWNER: &str = "org";
+const REPO: &str = "some-repo";
+const ISSUE_NUMBER: u64 = 123;
+const REACTION_ID: u64 = 456;
+
+#[tokio::test]
+async fn should_delete_reaction() {
+    let template = ResponseTemplate::new(204);
+    let mock_server = setup_remove_reaction_api(template).await;
+    let client = setup_octocrab(&mock_server.uri());
+
+    let issues = client.issues(OWNER.to_owned(), REPO.to_owned());
+
+    let result = issues
+        .delete_reaction(ISSUE_NUMBER.to_owned(), REACTION_ID.to_owned())
+        .await;
+
+    assert!(
+        result.is_ok(),
+        "expected successful result, got error: {:#?}",
+        result
+    );
+}