add test for write-quit happy path

helix-term/tests/test/commands.rs

@@ -25,6 +25,7 @@ async fn test_write_quit_fail() -> anyhow::Result<()> {
         Some(&|app| {
             assert_eq!(&Severity::Error, app.editor.get_status().unwrap().1);
         }),
+        false,
     )
     .await?;
 
@@ -59,6 +60,7 @@ async fn test_buffer_close_concurrent() -> anyhow::Result<()> {
                 }),
             ),
         ],
+        false,
     )
     .await?;
 
@@ -89,6 +91,7 @@ async fn test_buffer_close_concurrent() -> anyhow::Result<()> {
             let doc = app.editor.document_by_path(file.path());
             assert!(doc.is_none(), "found doc: {:?}", doc);
         }),
+        false,
     )
     .await?;
 

helix-term/tests/test/helpers.rs

@@ -37,41 +37,56 @@ pub async fn test_key_sequence(
     app: &mut Application,
     in_keys: Option<&str>,
     test_fn: Option<&dyn Fn(&Application)>,
+    should_exit: bool,
 ) -> anyhow::Result<()> {
-    test_key_sequences(app, vec![(in_keys, test_fn)]).await
+    test_key_sequences(app, vec![(in_keys, test_fn)], should_exit).await
 }
 
 #[allow(clippy::type_complexity)]
 pub async fn test_key_sequences(
     app: &mut Application,
     inputs: Vec<(Option<&str>, Option<&dyn Fn(&Application)>)>,
+    should_exit: bool,
 ) -> anyhow::Result<()> {
     const TIMEOUT: Duration = Duration::from_millis(500);
     let (tx, rx) = tokio::sync::mpsc::unbounded_channel();
     let mut rx_stream = UnboundedReceiverStream::new(rx);
+    let num_inputs = inputs.len();
 
-    for (in_keys, test_fn) in inputs {
+    for (i, (in_keys, test_fn)) in inputs.into_iter().enumerate() {
         if let Some(in_keys) = in_keys {
             for key_event in parse_macro(in_keys)?.into_iter() {
                 tx.send(Ok(Event::Key(KeyEvent::from(key_event))))?;
             }
         }
 
-        if !app.event_loop_until_idle(&mut rx_stream).await {
+        let app_exited = !app.event_loop_until_idle(&mut rx_stream).await;
+
+        // the app should not exit from any test until the last one
+        if i < num_inputs - 1 && app_exited {
             bail!("application exited before test function could run");
         }
 
+        // verify if it exited on the last iteration if it should have and
+        // the inverse
+        if i == num_inputs - 1 && app_exited != should_exit {
+            bail!("expected app to exit: {} != {}", app_exited, should_exit);
+        }
+
         if let Some(test) = test_fn {
             test(app);
         };
     }
 
+    if !should_exit {
         for key_event in parse_macro("<esc>:q!<ret>")?.into_iter() {
             tx.send(Ok(Event::Key(KeyEvent::from(key_event))))?;
         }
 
         let event_loop = app.event_loop(&mut rx_stream);
         tokio::time::timeout(TIMEOUT, event_loop).await?;
+    }
+
     app.close().await?;
 
     Ok(())
@@ -81,6 +96,7 @@ pub async fn test_key_sequence_with_input_text<T: Into<TestCase>>(
     app: Option<Application>,
     test_case: T,
     test_fn: &dyn Fn(&Application),
+    should_exit: bool,
 ) -> anyhow::Result<()> {
     let test_case = test_case.into();
     let mut app = match app {
@@ -100,7 +116,13 @@ pub async fn test_key_sequence_with_input_text<T: Into<TestCase>>(
         view.id,
     );
 
-    test_key_sequence(&mut app, Some(&test_case.in_keys), Some(test_fn)).await
+    test_key_sequence(
+        &mut app,
+        Some(&test_case.in_keys),
+        Some(test_fn),
+        should_exit,
+    )
+    .await
 }
 
 /// Use this for very simple test cases where there is one input
@@ -114,7 +136,10 @@ pub async fn test_with_config<T: Into<TestCase>>(
     let test_case = test_case.into();
     let app = Application::new(args, config)?;
 
-    test_key_sequence_with_input_text(Some(app), test_case.clone(), &|app| {
+    test_key_sequence_with_input_text(
+        Some(app),
+        test_case.clone(),
+        &|app| {
             let doc = doc!(app.editor);
             assert_eq!(&test_case.out_text, doc.text());
 
@@ -123,7 +148,9 @@ pub async fn test_with_config<T: Into<TestCase>>(
 
             let sel = selections.pop().unwrap();
             assert_eq!(test_case.out_selection, sel);
-    })
+        },
+        false,
+    )
     .await
 }
 

helix-term/tests/test/write.rs

@@ -23,6 +23,7 @@ async fn test_write() -> anyhow::Result<()> {
         )?,
         Some("ii can eat glass, it will not hurt me<ret><esc>:w<ret>"),
         None,
+        false,
     )
     .await?;
 
@@ -31,6 +32,39 @@ async fn test_write() -> anyhow::Result<()> {
 
     let mut file_content = String::new();
     file.as_file_mut().read_to_string(&mut file_content)?;
+
+    assert_eq!(
+        helpers::platform_line("i can eat glass, it will not hurt me"),
+        file_content
+    );
+
+    Ok(())
+}
+
+#[tokio::test]
+async fn test_write_quit() -> anyhow::Result<()> {
+    let mut file = tempfile::NamedTempFile::new()?;
+
+    test_key_sequence(
+        &mut Application::new(
+            Args {
+                files: vec![(file.path().to_path_buf(), Position::default())],
+                ..Default::default()
+            },
+            Config::default(),
+        )?,
+        Some("ii can eat glass, it will not hurt me<ret><esc>:wq<ret>"),
+        None,
+        true,
+    )
+    .await?;
+
+    file.as_file_mut().flush()?;
+    file.as_file_mut().sync_all()?;
+
+    let mut file_content = String::new();
+    file.as_file_mut().read_to_string(&mut file_content)?;
+
     assert_eq!(
         helpers::platform_line("i can eat glass, it will not hurt me"),
         file_content
@@ -61,6 +95,7 @@ async fn test_write_concurrent() -> anyhow::Result<()> {
         )?,
         Some(&command),
         None,
+        false,
     )
     .await?;
 
@@ -112,6 +147,7 @@ async fn test_write_fail_mod_flag() -> anyhow::Result<()> {
                 }),
             ),
         ],
+        false,
     )
     .await?;
 
@@ -149,6 +185,7 @@ async fn test_write_fail_new_path() -> anyhow::Result<()> {
                 }),
             ),
         ],
+        false,
     )
     .await?;