Merge pull request #2267 from dead10ck/fix-write-fail

Write path fixes

8 files changed, 410 insertions, 57 deletions

diff --git a/helix-term/tests/test/auto_indent.rs b/helix-term/tests/test/auto_indent.rs
index 2f638893..5c093a5d 100644
--- a/helix-term/tests/test/auto_indent.rs
+++ b/helix-term/tests/test/auto_indent.rs
@@ -8,6 +8,7 @@ async fn auto_indent_c() -> anyhow::Result<()> {
             ..Default::default()
         },
         Config::default(),
+        helpers::test_syntax_conf(None),
         // switches to append mode?
         (
             helpers::platform_line("void foo() {#[|}]#").as_ref(),
diff --git a/helix-term/tests/test/auto_pairs.rs b/helix-term/tests/test/auto_pairs.rs
index ec47a5b4..caf80bd4 100644
--- a/helix-term/tests/test/auto_pairs.rs
+++ b/helix-term/tests/test/auto_pairs.rs
@@ -13,6 +13,7 @@ async fn auto_pairs_basic() -> anyhow::Result<()> {
             },
             ..Default::default()
         },
+        helpers::test_syntax_conf(None),
         ("#[\n|]#", "i(<esc>", "(#[|\n]#"),
     )
     .await?;
diff --git a/helix-term/tests/test/commands.rs b/helix-term/tests/test/commands.rs
index f7ce9af0..5238cc69 100644
--- a/helix-term/tests/test/commands.rs
+++ b/helix-term/tests/test/commands.rs
@@ -1,21 +1,25 @@
-use std::{
-    io::{Read, Write},
-    ops::RangeInclusive,
-};
+use std::ops::RangeInclusive;
 
 use helix_core::diagnostic::Severity;
-use helix_term::application::Application;
 
 use super::*;
 
-#[tokio::test]
+#[tokio::test(flavor = "multi_thread")]
 async fn test_write_quit_fail() -> anyhow::Result<()> {
     let file = helpers::new_readonly_tempfile()?;
+    let mut app = helpers::AppBuilder::new()
+        .with_file(file.path(), None)
+        .build()?;
 
     test_key_sequence(
-        &mut helpers::app_with_file(file.path())?,
+        &mut app,
         Some("ihello<esc>:wq<ret>"),
         Some(&|app| {
+            let mut docs: Vec<_> = app.editor.documents().collect();
+            assert_eq!(1, docs.len());
+
+            let doc = docs.pop().unwrap();
+            assert_eq!(Some(file.path()), doc.path().map(PathBuf::as_path));
             assert_eq!(&Severity::Error, app.editor.get_status().unwrap().1);
         }),
         false,
@@ -25,11 +29,10 @@ async fn test_write_quit_fail() -> anyhow::Result<()> {
     Ok(())
 }
 
-#[tokio::test]
-#[ignore]
+#[tokio::test(flavor = "multi_thread")]
 async fn test_buffer_close_concurrent() -> anyhow::Result<()> {
     test_key_sequences(
-        &mut Application::new(Args::default(), Config::default())?,
+        &mut helpers::AppBuilder::new().build()?,
         vec![
             (
                 None,
@@ -69,8 +72,12 @@ async fn test_buffer_close_concurrent() -> anyhow::Result<()> {
 
     command.push_str(":buffer<minus>close<ret>");
 
+    let mut app = helpers::AppBuilder::new()
+        .with_file(file.path(), None)
+        .build()?;
+
     test_key_sequence(
-        &mut helpers::app_with_file(file.path())?,
+        &mut app,
         Some(&command),
         Some(&|app| {
             assert!(!app.editor.is_err(), "error: {:?}", app.editor.get_status());
@@ -82,12 +89,7 @@ async fn test_buffer_close_concurrent() -> anyhow::Result<()> {
     )
     .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!(RANGE.end().to_string(), file_content);
+    helpers::assert_file_has_content(file.as_file_mut(), &RANGE.end().to_string())?;
 
     Ok(())
 }
diff --git a/helix-term/tests/test/helpers.rs b/helix-term/tests/test/helpers.rs
index 8f2501e6..5adc3354 100644
--- a/helix-term/tests/test/helpers.rs
+++ b/helix-term/tests/test/helpers.rs
@@ -1,10 +1,15 @@
-use std::{io::Write, path::PathBuf, time::Duration};
+use std::{
+    fs::File,
+    io::{Read, Write},
+    path::PathBuf,
+    time::Duration,
+};
 
 use anyhow::bail;
 use crossterm::event::{Event, KeyEvent};
-use helix_core::{test, Selection, Transaction};
+use helix_core::{diagnostic::Severity, test, Selection, Transaction};
 use helix_term::{application::Application, args::Args, config::Config};
-use helix_view::{doc, input::parse_macro};
+use helix_view::{doc, input::parse_macro, Editor};
 use tempfile::NamedTempFile;
 use tokio_stream::wrappers::UnboundedReceiverStream;
 
@@ -56,7 +61,9 @@ pub async fn test_key_sequences(
     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))))?;
+                let key = Event::Key(KeyEvent::from(key_event));
+                log::trace!("sending key: {:?}", key);
+                tx.send(Ok(key))?;
             }
         }
 
@@ -70,7 +77,7 @@ pub async fn test_key_sequences(
         // 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);
+            bail!("expected app to exit: {} != {}", should_exit, app_exited);
         }
 
         if let Some(test) = test_fn {
@@ -87,7 +94,17 @@ pub async fn test_key_sequences(
         tokio::time::timeout(TIMEOUT, event_loop).await?;
     }
 
-    app.close().await?;
+    let errs = app.close().await;
+
+    if !errs.is_empty() {
+        log::error!("Errors closing app");
+
+        for err in errs {
+            log::error!("{}", err);
+        }
+
+        bail!("Error closing app");
+    }
 
     Ok(())
 }
@@ -101,7 +118,7 @@ pub async fn test_key_sequence_with_input_text<T: Into<TestCase>>(
     let test_case = test_case.into();
     let mut app = match app {
         Some(app) => app,
-        None => Application::new(Args::default(), Config::default())?,
+        None => Application::new(Args::default(), Config::default(), test_syntax_conf(None))?,
     };
 
     let (view, doc) = helix_view::current!(app.editor);
@@ -125,16 +142,30 @@ pub async fn test_key_sequence_with_input_text<T: Into<TestCase>>(
     .await
 }
 
+/// Generates language configs that merge in overrides, like a user language
+/// config. The argument string must be a raw TOML document.
+pub fn test_syntax_conf(overrides: Option<String>) -> helix_core::syntax::Configuration {
+    let mut lang = helix_loader::config::default_lang_config();
+
+    if let Some(overrides) = overrides {
+        let override_toml = toml::from_str(&overrides).unwrap();
+        lang = helix_loader::merge_toml_values(lang, override_toml, 3);
+    }
+
+    lang.try_into().unwrap()
+}
+
 /// Use this for very simple test cases where there is one input
 /// document, selection, and sequence of key presses, and you just
 /// want to verify the resulting document and selection.
 pub async fn test_with_config<T: Into<TestCase>>(
     args: Args,
     config: Config,
+    syn_conf: helix_core::syntax::Configuration,
     test_case: T,
 ) -> anyhow::Result<()> {
     let test_case = test_case.into();
-    let app = Application::new(args, config)?;
+    let app = Application::new(args, config, syn_conf)?;
 
     test_key_sequence_with_input_text(
         Some(app),
@@ -155,7 +186,13 @@ pub async fn test_with_config<T: Into<TestCase>>(
 }
 
 pub async fn test<T: Into<TestCase>>(test_case: T) -> anyhow::Result<()> {
-    test_with_config(Args::default(), Config::default(), test_case).await
+    test_with_config(
+        Args::default(),
+        Config::default(),
+        test_syntax_conf(None),
+        test_case,
+    )
+    .await
 }
 
 pub fn temp_file_with_contents<S: AsRef<str>>(
@@ -200,14 +237,75 @@ pub fn new_readonly_tempfile() -> anyhow::Result<NamedTempFile> {
     Ok(file)
 }
 
-/// Creates a new Application with default config that opens the given file
-/// path
-pub fn app_with_file<P: Into<PathBuf>>(path: P) -> anyhow::Result<Application> {
-    Application::new(
-        Args {
-            files: vec![(path.into(), helix_core::Position::default())],
-            ..Default::default()
-        },
-        Config::default(),
-    )
+#[derive(Default)]
+pub struct AppBuilder {
+    args: Args,
+    config: Config,
+    syn_conf: helix_core::syntax::Configuration,
+    input: Option<(String, Selection)>,
+}
+
+impl AppBuilder {
+    pub fn new() -> Self {
+        AppBuilder::default()
+    }
+
+    pub fn with_file<P: Into<PathBuf>>(
+        mut self,
+        path: P,
+        pos: Option<helix_core::Position>,
+    ) -> Self {
+        self.args.files.push((path.into(), pos.unwrap_or_default()));
+        self
+    }
+
+    pub fn with_config(mut self, config: Config) -> Self {
+        self.config = config;
+        self
+    }
+
+    pub fn with_input_text<S: Into<String>>(mut self, input_text: S) -> Self {
+        self.input = Some(test::print(&input_text.into()));
+        self
+    }
+
+    pub fn with_lang_config(mut self, syn_conf: helix_core::syntax::Configuration) -> Self {
+        self.syn_conf = syn_conf;
+        self
+    }
+
+    pub fn build(self) -> anyhow::Result<Application> {
+        let mut app = Application::new(self.args, self.config, self.syn_conf)?;
+
+        if let Some((text, selection)) = self.input {
+            let (view, doc) = helix_view::current!(app.editor);
+            let sel = doc.selection(view.id).clone();
+            let trans = Transaction::change_by_selection(doc.text(), &sel, |_| {
+                (0, doc.text().len_chars(), Some((text.clone()).into()))
+            })
+            .with_selection(selection);
+
+            // replace the initial text with the input text
+            doc.apply(&trans, view.id);
+        }
+
+        Ok(app)
+    }
+}
+
+pub fn assert_file_has_content(file: &mut File, content: &str) -> anyhow::Result<()> {
+    file.flush()?;
+    file.sync_all()?;
+
+    let mut file_content = String::new();
+    file.read_to_string(&mut file_content)?;
+    assert_eq!(content, file_content);
+
+    Ok(())
+}
+
+pub fn assert_status_not_error(editor: &Editor) {
+    if let Some((_, sev)) = editor.get_status() {
+        assert_ne!(&Severity::Error, sev);
+    }
 }
diff --git a/helix-term/tests/test/movement.rs b/helix-term/tests/test/movement.rs
index 45aae39e..81c66e53 100644
--- a/helix-term/tests/test/movement.rs
+++ b/helix-term/tests/test/movement.rs
@@ -70,7 +70,9 @@ async fn insert_to_normal_mode_cursor_position() -> anyhow::Result<()> {
 async fn cursor_position_newly_opened_file() -> anyhow::Result<()> {
     let test = |content: &str, expected_sel: Selection| -> anyhow::Result<()> {
         let file = helpers::temp_file_with_contents(content)?;
-        let mut app = helpers::app_with_file(file.path())?;
+        let mut app = helpers::AppBuilder::new()
+            .with_file(file.path(), None)
+            .build()?;
 
         let (view, doc) = helix_view::current!(app.editor);
         let sel = doc.selection(view.id).clone();
@@ -115,6 +117,7 @@ async fn select_mode_tree_sitter_next_function_is_union_of_objects() -> anyhow::
             ..Default::default()
         },
         Config::default(),
+        helpers::test_syntax_conf(None),
         (
             helpers::platform_line(indoc! {"\
                 #[/|]#// Increments
@@ -146,6 +149,7 @@ async fn select_mode_tree_sitter_prev_function_unselects_object() -> anyhow::Res
             ..Default::default()
         },
         Config::default(),
+        helpers::test_syntax_conf(None),
         (
             helpers::platform_line(indoc! {"\
                 /// Increments
@@ -178,6 +182,7 @@ async fn select_mode_tree_sitter_prev_function_goes_backwards_to_object() -> any
             ..Default::default()
         },
         Config::default(),
+        helpers::test_syntax_conf(None),
         (
             helpers::platform_line(indoc! {"\
                 /// Increments
@@ -208,6 +213,7 @@ async fn select_mode_tree_sitter_prev_function_goes_backwards_to_object() -> any
             ..Default::default()
         },
         Config::default(),
+        helpers::test_syntax_conf(None),
         (
             helpers::platform_line(indoc! {"\
                 /// Increments
diff --git a/helix-term/tests/test/prompt.rs b/helix-term/tests/test/prompt.rs
index 2ab9604c..62ec03f1 100644
--- a/helix-term/tests/test/prompt.rs
+++ b/helix-term/tests/test/prompt.rs
@@ -1,11 +1,9 @@
 use super::*;
 
-use helix_term::application::Application;
-
 #[tokio::test]
 async fn test_history_completion() -> anyhow::Result<()> {
     test_key_sequence(
-        &mut Application::new(Args::default(), Config::default())?,
+        &mut AppBuilder::new().build()?,
         Some(":asdf<ret>:theme d<C-n><tab>"),
         Some(&|app| {
             assert!(!app.editor.is_err());
diff --git a/helix-term/tests/test/splits.rs b/helix-term/tests/test/splits.rs
new file mode 100644
index 00000000..5807413a
--- /dev/null
+++ b/helix-term/tests/test/splits.rs
@@ -0,0 +1,129 @@
+use super::*;
+
+#[tokio::test(flavor = "multi_thread")]
+async fn test_split_write_quit_all() -> anyhow::Result<()> {
+    let mut file1 = tempfile::NamedTempFile::new()?;
+    let mut file2 = tempfile::NamedTempFile::new()?;
+    let mut file3 = tempfile::NamedTempFile::new()?;
+
+    let mut app = helpers::AppBuilder::new()
+        .with_file(file1.path(), None)
+        .build()?;
+
+    test_key_sequences(
+        &mut app,
+        vec![
+            (
+                Some(&format!(
+                    "ihello1<esc>:sp<ret>:o {}<ret>ihello2<esc>:sp<ret>:o {}<ret>ihello3<esc>",
+                    file2.path().to_string_lossy(),
+                    file3.path().to_string_lossy()
+                )),
+                Some(&|app| {
+                    let docs: Vec<_> = app.editor.documents().collect();
+                    assert_eq!(3, docs.len());
+
+                    let doc1 = docs
+                        .iter()
+                        .find(|doc| doc.path().unwrap() == file1.path())
+                        .unwrap();
+
+                    assert_eq!("hello1", doc1.text().to_string());
+
+                    let doc2 = docs
+                        .iter()
+                        .find(|doc| doc.path().unwrap() == file2.path())
+                        .unwrap();
+
+                    assert_eq!("hello2", doc2.text().to_string());
+
+                    let doc3 = docs
+                        .iter()
+                        .find(|doc| doc.path().unwrap() == file3.path())
+                        .unwrap();
+
+                    assert_eq!("hello3", doc3.text().to_string());
+
+                    helpers::assert_status_not_error(&app.editor);
+                    assert_eq!(3, app.editor.tree.views().count());
+                }),
+            ),
+            (
+                Some(":wqa<ret>"),
+                Some(&|app| {
+                    helpers::assert_status_not_error(&app.editor);
+                    assert_eq!(0, app.editor.tree.views().count());
+                }),
+            ),
+        ],
+        true,
+    )
+    .await?;
+
+    helpers::assert_file_has_content(file1.as_file_mut(), "hello1")?;
+    helpers::assert_file_has_content(file2.as_file_mut(), "hello2")?;
+    helpers::assert_file_has_content(file3.as_file_mut(), "hello3")?;
+
+    Ok(())
+}
+
+#[tokio::test(flavor = "multi_thread")]
+async fn test_split_write_quit_same_file() -> anyhow::Result<()> {
+    let mut file = tempfile::NamedTempFile::new()?;
+    let mut app = helpers::AppBuilder::new()
+        .with_file(file.path(), None)
+        .build()?;
+
+    test_key_sequences(
+        &mut app,
+        vec![
+            (
+                Some("O<esc>ihello<esc>:sp<ret>ogoodbye<esc>"),
+                Some(&|app| {
+                    assert_eq!(2, app.editor.tree.views().count());
+                    helpers::assert_status_not_error(&app.editor);
+
+                    let mut docs: Vec<_> = app.editor.documents().collect();
+                    assert_eq!(1, docs.len());
+
+                    let doc = docs.pop().unwrap();
+
+                    assert_eq!(
+                        helpers::platform_line("hello\ngoodbye"),
+                        doc.text().to_string()
+                    );
+
+                    assert!(doc.is_modified());
+                }),
+            ),
+            (
+                Some(":wq<ret>"),
+                Some(&|app| {
+                    helpers::assert_status_not_error(&app.editor);
+                    assert_eq!(1, app.editor.tree.views().count());
+
+                    let mut docs: Vec<_> = app.editor.documents().collect();
+                    assert_eq!(1, docs.len());
+
+                    let doc = docs.pop().unwrap();
+
+                    assert_eq!(
+                        helpers::platform_line("hello\ngoodbye"),
+                        doc.text().to_string()
+                    );
+
+                    assert!(!doc.is_modified());
+                }),
+            ),
+        ],
+        false,
+    )
+    .await?;
+
+    helpers::assert_file_has_content(
+        file.as_file_mut(),
+        &helpers::platform_line("hello\ngoodbye"),
+    )?;
+
+    Ok(())
+}
diff --git a/helix-term/tests/test/write.rs b/helix-term/tests/test/write.rs
index 8869d881..6aa51a31 100644
--- a/helix-term/tests/test/write.rs
+++ b/helix-term/tests/test/write.rs
@@ -4,7 +4,6 @@ use std::{
 };
 
 use helix_core::diagnostic::Severity;
-use helix_term::application::Application;
 use helix_view::doc;
 
 use super::*;
@@ -12,9 +11,12 @@ use super::*;
 #[tokio::test]
 async fn test_write() -> anyhow::Result<()> {
     let mut file = tempfile::NamedTempFile::new()?;
+    let mut app = helpers::AppBuilder::new()
+        .with_file(file.path(), None)
+        .build()?;
 
     test_key_sequence(
-        &mut helpers::app_with_file(file.path())?,
+        &mut app,
         Some("ithe gostak distims the doshes<ret><esc>:w<ret>"),
         None,
         false,
@@ -35,12 +37,15 @@ async fn test_write() -> anyhow::Result<()> {
     Ok(())
 }
 
-#[tokio::test]
+#[tokio::test(flavor = "multi_thread")]
 async fn test_write_quit() -> anyhow::Result<()> {
     let mut file = tempfile::NamedTempFile::new()?;
+    let mut app = helpers::AppBuilder::new()
+        .with_file(file.path(), None)
+        .build()?;
 
     test_key_sequence(
-        &mut helpers::app_with_file(file.path())?,
+        &mut app,
         Some("ithe gostak distims the doshes<ret><esc>:wq<ret>"),
         None,
         true,
@@ -61,25 +66,21 @@ async fn test_write_quit() -> anyhow::Result<()> {
     Ok(())
 }
 
-#[tokio::test]
-#[ignore]
+#[tokio::test(flavor = "multi_thread")]
 async fn test_write_concurrent() -> anyhow::Result<()> {
     let mut file = tempfile::NamedTempFile::new()?;
     let mut command = String::new();
     const RANGE: RangeInclusive<i32> = 1..=5000;
+    let mut app = helpers::AppBuilder::new()
+        .with_file(file.path(), None)
+        .build()?;
 
     for i in RANGE {
         let cmd = format!("%c{}<esc>:w<ret>", i);
         command.push_str(&cmd);
     }
 
-    test_key_sequence(
-        &mut helpers::app_with_file(file.path())?,
-        Some(&command),
-        None,
-        false,
-    )
-    .await?;
+    test_key_sequence(&mut app, Some(&command), None, false).await?;
 
     file.as_file_mut().flush()?;
     file.as_file_mut().sync_all()?;
@@ -92,12 +93,14 @@ async fn test_write_concurrent() -> anyhow::Result<()> {
 }
 
 #[tokio::test]
-#[ignore]
 async fn test_write_fail_mod_flag() -> anyhow::Result<()> {
     let file = helpers::new_readonly_tempfile()?;
+    let mut app = helpers::AppBuilder::new()
+        .with_file(file.path(), None)
+        .build()?;
 
     test_key_sequences(
-        &mut helpers::app_with_file(file.path())?,
+        &mut app,
         vec![
             (
                 None,
@@ -131,12 +134,127 @@ async fn test_write_fail_mod_flag() -> anyhow::Result<()> {
 }
 
 #[tokio::test]
-#[ignore]
+async fn test_write_scratch_to_new_path() -> anyhow::Result<()> {
+    let mut file = tempfile::NamedTempFile::new()?;
+
+    test_key_sequence(
+        &mut AppBuilder::new().build()?,
+        Some(format!("ihello<esc>:w {}<ret>", file.path().to_string_lossy()).as_ref()),
+        Some(&|app| {
+            assert!(!app.editor.is_err());
+
+            let mut docs: Vec<_> = app.editor.documents().collect();
+            assert_eq!(1, docs.len());
+
+            let doc = docs.pop().unwrap();
+            assert_eq!(Some(&file.path().to_path_buf()), doc.path());
+        }),
+        false,
+    )
+    .await?;
+
+    helpers::assert_file_has_content(file.as_file_mut(), &helpers::platform_line("hello"))?;
+
+    Ok(())
+}
+
+#[tokio::test]
+async fn test_write_scratch_no_path_fails() -> anyhow::Result<()> {
+    helpers::test_key_sequence_with_input_text(
+        None,
+        ("#[\n|]#", "ihello<esc>:w<ret>", "hello#[\n|]#"),
+        &|app| {
+            assert!(app.editor.is_err());
+
+            let mut docs: Vec<_> = app.editor.documents().collect();
+            assert_eq!(1, docs.len());
+
+            let doc = docs.pop().unwrap();
+            assert_eq!(None, doc.path());
+        },
+        false,
+    )
+    .await?;
+
+    Ok(())
+}
+
+#[tokio::test]
+async fn test_write_auto_format_fails_still_writes() -> anyhow::Result<()> {
+    let mut file = tempfile::Builder::new().suffix(".rs").tempfile()?;
+
+    let lang_conf = indoc! {r#"
+            [[language]]
+            name = "rust"
+            formatter = { command = "bash", args = [ "-c", "exit 1" ] }
+        "#};
+
+    let mut app = helpers::AppBuilder::new()
+        .with_file(file.path(), None)
+        .with_input_text("#[l|]#et foo = 0;\n")
+        .with_lang_config(helpers::test_syntax_conf(Some(lang_conf.into())))
+        .build()?;
+
+    test_key_sequences(&mut app, vec![(Some(":w<ret>"), None)], false).await?;
+
+    // file still saves
+    helpers::assert_file_has_content(file.as_file_mut(), "let foo = 0;\n")?;
+
+    Ok(())
+}
+
+#[tokio::test]
+async fn test_write_new_path() -> anyhow::Result<()> {
+    let mut file1 = tempfile::NamedTempFile::new().unwrap();
+    let mut file2 = tempfile::NamedTempFile::new().unwrap();
+    let mut app = helpers::AppBuilder::new()
+        .with_file(file1.path(), None)
+        .build()?;
+
+    test_key_sequences(
+        &mut app,
+        vec![
+            (
+                Some("ii can eat glass, it will not hurt me<ret><esc>:w<ret>"),
+                Some(&|app| {
+                    let doc = doc!(app.editor);
+                    assert!(!app.editor.is_err());
+                    assert_eq!(file1.path(), doc.path().unwrap());
+                }),
+            ),
+            (
+                Some(&format!(":w {}<ret>", file2.path().to_string_lossy())),
+                Some(&|app| {
+                    let doc = doc!(app.editor);
+                    assert!(!app.editor.is_err());
+                    assert_eq!(file2.path(), doc.path().unwrap());
+                    assert!(app.editor.document_by_path(file1.path()).is_none());
+                }),
+            ),
+        ],
+        false,
+    )
+    .await?;
+
+    helpers::assert_file_has_content(
+        file1.as_file_mut(),
+        &helpers::platform_line("i can eat glass, it will not hurt me\n"),
+    )?;
+
+    helpers::assert_file_has_content(
+        file2.as_file_mut(),
+        &helpers::platform_line("i can eat glass, it will not hurt me\n"),
+    )?;
+
+    Ok(())
+}
+
+#[tokio::test]
 async fn test_write_fail_new_path() -> anyhow::Result<()> {
     let file = helpers::new_readonly_tempfile()?;
 
     test_key_sequences(
-        &mut Application::new(Args::default(), Config::default())?,
+        &mut AppBuilder::new().build()?,
         vec![
             (
                 None,