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improve performance of 'cargo test -p codex-tui' (#2593)

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before:

```
$ time cargo test -p codex-tui -q
[...]
cargo test -p codex-tui -q  39.89s user 10.77s system 98% cpu 51.328 total
```

after:

```
$ time cargo test -p codex-tui -q
[...]
cargo test -p codex-tui -q  1.37s user 0.64s system 29% cpu 6.699 total
```

the major offenders were the textarea fuzz test and the custom_terminal
doctests. (i think the doctests were being recompiled every time which
made them extra slow?)
This commit is contained in:
Jeremy Rose
2025-08-22 14:03:58 -07:00
committed by GitHub
parent 6f0b499594
commit bbf42f4e12
4 changed files with 16 additions and 157 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
codex-rs/tui/src/bottom_pane/mod.rs
View File

@@ -492,8 +492,6 @@ mod tests {
assert!(pane.active_view.is_some(), "active view should be present");
// Render and ensure the top row includes the Working header instead of the composer.
// Give the animation thread a moment to tick.
std::thread::sleep(std::time::Duration::from_millis(120));
let area = Rect::new(0, 0, 40, 3);
let mut buf = Buffer::empty(area);
(&pane).render_ref(area, &mut buf);
@@ -525,9 +523,6 @@ mod tests {
// Begin a task: show initial status.
pane.set_task_running(true);
// Allow some frames so the animation thread ticks.
std::thread::sleep(std::time::Duration::from_millis(120));
// Render and confirm the line contains the "Working" header.
let area = Rect::new(0, 0, 40, 3);
let mut buf = Buffer::empty(area);

4
codex-rs/tui/src/bottom_pane/textarea.rs
View File

@@ -1473,7 +1473,7 @@ mod tests {
.timestamp() as u64;
let mut rng = rand::rngs::StdRng::seed_from_u64(pst_today_seed);
for _case in 0..10_000 {
for _case in 0..500 {
let mut ta = TextArea::new();
let mut state = TextAreaState::default();
// Track element payloads we insert. Payloads use characters '[' and ']' which
@@ -1497,7 +1497,7 @@ mod tests {
let mut width: u16 = rng.random_range(1..=12);
let mut height: u16 = rng.random_range(1..=4);
for _step in 0..200 {
for _step in 0..60 {
// Mostly stable width/height, occasionally change
if rng.random_bool(0.1) {
width = rng.random_range(1..=12);

145
codex-rs/tui/src/custom_terminal.rs
View File

@@ -70,20 +70,6 @@ impl Frame<'_> {
/// Usually the area argument is the size of the current frame or a sub-area of the current
/// frame (which can be obtained using [`Layout`] to split the total area).
///
/// # Example
///
/// ```rust
/// # use ratatui::{backend::TestBackend, Terminal};
/// # let backend = TestBackend::new(5, 5);
/// # let mut terminal = Terminal::new(backend).unwrap();
/// # let mut frame = terminal.get_frame();
/// use ratatui::{layout::Rect, widgets::Block};
///
/// let block = Block::new();
/// let area = Rect::new(0, 0, 5, 5);
/// frame.render_widget(block, area);
/// ```
///
/// [`Layout`]: crate::layout::Layout
pub fn render_widget<W: Widget>(&mut self, widget: W, area: Rect) {
widget.render(area, self.buffer);
@@ -93,22 +79,6 @@ impl Frame<'_> {
///
/// Usually the area argument is the size of the current frame or a sub-area of the current
/// frame (which can be obtained using [`Layout`] to split the total area).
///
/// # Example
///
/// ```rust
/// # #[cfg(feature = "unstable-widget-ref")] {
/// # use ratatui::{backend::TestBackend, Terminal};
/// # let backend = TestBackend::new(5, 5);
/// # let mut terminal = Terminal::new(backend).unwrap();
/// # let mut frame = terminal.get_frame();
/// use ratatui::{layout::Rect, widgets::Block};
///
/// let block = Block::new();
/// let area = Rect::new(0, 0, 5, 5);
/// frame.render_widget_ref(block, area);
/// # }
/// ```
#[allow(clippy::needless_pass_by_value)]
pub fn render_widget_ref<W: WidgetRef>(&mut self, widget: W, area: Rect) {
widget.render_ref(area, self.buffer);
@@ -122,24 +92,6 @@ impl Frame<'_> {
/// The last argument should be an instance of the [`StatefulWidget::State`] associated to the
/// given [`StatefulWidget`].
///
/// # Example
///
/// ```rust
/// # use ratatui::{backend::TestBackend, Terminal};
/// # let backend = TestBackend::new(5, 5);
/// # let mut terminal = Terminal::new(backend).unwrap();
/// # let mut frame = terminal.get_frame();
/// use ratatui::{
/// layout::Rect,
/// widgets::{List, ListItem, ListState},
/// };
///
/// let mut state = ListState::default().with_selected(Some(1));
/// let list = List::new(vec![ListItem::new("Item 1"), ListItem::new("Item 2")]);
/// let area = Rect::new(0, 0, 5, 5);
/// frame.render_stateful_widget(list, area, &mut state);
/// ```
///
/// [`Layout`]: crate::layout::Layout
pub fn render_stateful_widget<W>(&mut self, widget: W, area: Rect, state: &mut W::State)
where
@@ -156,26 +108,6 @@ impl Frame<'_> {
///
/// The last argument should be an instance of the [`StatefulWidgetRef::State`] associated to
/// the given [`StatefulWidgetRef`].
///
/// # Example
///
/// ```rust
/// # #[cfg(feature = "unstable-widget-ref")] {
/// # use ratatui::{backend::TestBackend, Terminal};
/// # let backend = TestBackend::new(5, 5);
/// # let mut terminal = Terminal::new(backend).unwrap();
/// # let mut frame = terminal.get_frame();
/// use ratatui::{
/// layout::Rect,
/// widgets::{List, ListItem, ListState},
/// };
///
/// let mut state = ListState::default().with_selected(Some(1));
/// let list = List::new(vec![ListItem::new("Item 1"), ListItem::new("Item 2")]);
/// let area = Rect::new(0, 0, 5, 5);
/// frame.render_stateful_widget_ref(list, area, &mut state);
/// # }
/// ```
#[allow(clippy::needless_pass_by_value)]
pub fn render_stateful_widget_ref<W>(&mut self, widget: W, area: Rect, state: &mut W::State)
where
@@ -216,17 +148,6 @@ impl Frame<'_> {
/// This count is particularly useful when dealing with dynamic content or animations where the
/// state of the display changes over time. By tracking the frame count, developers can
/// synchronize updates or changes to the content with the rendering process.
///
/// # Examples
///
/// ```rust
/// # use ratatui::{backend::TestBackend, Terminal};
/// # let backend = TestBackend::new(5, 5);
/// # let mut terminal = Terminal::new(backend).unwrap();
/// # let mut frame = terminal.get_frame();
/// let current_count = frame.count();
/// println!("Current frame count: {}", current_count);
/// ```
pub const fn count(&self) -> usize {
self.count
}
@@ -277,19 +198,6 @@ where
B: Backend,
{
/// Creates a new [`Terminal`] with the given [`Backend`] and [`TerminalOptions`].
///
/// # Example
///
/// ```rust
/// use std::io::stdout;
///
/// use ratatui::{backend::CrosstermBackend, layout::Rect, Terminal, TerminalOptions, Viewport};
///
/// let backend = CrosstermBackend::new(stdout());
/// let viewport = Viewport::Fixed(Rect::new(0, 0, 10, 10));
/// let terminal = Terminal::with_options(backend, TerminalOptions { viewport })?;
/// # std::io::Result::Ok(())
/// ```
pub fn with_options(mut backend: B) -> io::Result<Self> {
let screen_size = backend.size()?;
let cursor_pos = backend.get_cursor_position()?;
@@ -394,29 +302,6 @@ where
/// previous frame to determine what has changed, and only the changes are written to the
/// terminal. If the render callback does not fully render the frame, the terminal will not be
/// in a consistent state.
///
/// # Examples
///
/// ```
/// # let backend = ratatui::backend::TestBackend::new(10, 10);
/// # let mut terminal = ratatui::Terminal::new(backend)?;
/// use ratatui::{layout::Position, widgets::Paragraph};
///
/// // with a closure
/// terminal.draw(|frame| {
/// let area = frame.area();
/// frame.render_widget(Paragraph::new("Hello World!"), area);
/// frame.set_cursor_position(Position { x: 0, y: 0 });
/// })?;
///
/// // or with a function
/// terminal.draw(render)?;
///
/// fn render(frame: &mut ratatui::Frame) {
/// frame.render_widget(Paragraph::new("Hello World!"), frame.area());
/// }
/// # std::io::Result::Ok(())
/// ```
pub fn draw<F>(&mut self, render_callback: F) -> io::Result<()>
where
F: FnOnce(&mut Frame),
@@ -462,36 +347,6 @@ where
/// previous frame to determine what has changed, and only the changes are written to the
/// terminal. If the render function does not fully render the frame, the terminal will not be
/// in a consistent state.
///
/// # Examples
///
/// ```should_panic
/// # use ratatui::layout::Position;;
/// # let backend = ratatui::backend::TestBackend::new(10, 10);
/// # let mut terminal = ratatui::Terminal::new(backend)?;
/// use std::io;
///
/// use ratatui::widgets::Paragraph;
///
/// // with a closure
/// terminal.try_draw(|frame| {
/// let value: u8 = "not a number".parse().map_err(io::Error::other)?;
/// let area = frame.area();
/// frame.render_widget(Paragraph::new("Hello World!"), area);
/// frame.set_cursor_position(Position { x: 0, y: 0 });
/// io::Result::Ok(())
/// })?;
///
/// // or with a function
/// terminal.try_draw(render)?;
///
/// fn render(frame: &mut ratatui::Frame) -> io::Result<()> {
/// let value: u8 = "not a number".parse().map_err(io::Error::other)?;
/// frame.render_widget(Paragraph::new("Hello World!"), frame.area());
/// Ok(())
/// }
/// # io::Result::Ok(())
/// ```
pub fn try_draw<F, E>(&mut self, render_callback: F) -> io::Result<()>
where
F: FnOnce(&mut Frame) -> Result<(), E>,

19
codex-rs/tui/src/status_indicator_widget.rs
View File

@@ -146,6 +146,15 @@ impl StatusIndicatorWidget {
let since_start = self.start_time.elapsed();
(since_start.as_millis() / 100) as usize
}
/// Test-only helper to fast-forward the internal clock so animations
/// advance without sleeping.
#[cfg(test)]
pub(crate) fn test_fast_forward_frames(&mut self, frames: usize) {
let advance_ms = (frames as u64).saturating_mul(100);
// Move the start time into the past so `current_frame()` advances.
self.start_time = std::time::Instant::now() - std::time::Duration::from_millis(advance_ms);
}
}
impl WidgetRef for StatusIndicatorWidget {
@@ -236,8 +245,8 @@ mod tests {
w.restart_with_text("Hello".to_string());
let area = ratatui::layout::Rect::new(0, 0, 30, 1);
// Allow a short delay so the typewriter reveals the first character.
std::thread::sleep(std::time::Duration::from_millis(120));
// Advance animation without sleeping.
w.test_fast_forward_frames(2);
let mut buf = ratatui::buffer::Buffer::empty(area);
w.render_ref(area, &mut buf);
@@ -252,8 +261,8 @@ mod tests {
let tx = AppEventSender::new(tx_raw);
let mut w = StatusIndicatorWidget::new(tx, crate::tui::FrameRequester::test_dummy());
w.restart_with_text("Hi".to_string());
// Ensure some frames elapse so we get a stable state.
std::thread::sleep(std::time::Duration::from_millis(120));
// Advance animation without sleeping.
w.test_fast_forward_frames(2);
let area = ratatui::layout::Rect::new(0, 0, 30, 1);
let mut buf = ratatui::buffer::Buffer::empty(area);
@@ -273,7 +282,7 @@ mod tests {
let tx = AppEventSender::new(tx_raw);
let mut w = StatusIndicatorWidget::new(tx, crate::tui::FrameRequester::test_dummy());
w.restart_with_text("Hello".to_string());
std::thread::sleep(std::time::Duration::from_millis(120));
w.test_fast_forward_frames(2);
let area = ratatui::layout::Rect::new(0, 0, 30, 1);
let mut buf = ratatui::buffer::Buffer::empty(area);