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Teach codex to test itself (#11531)

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For fun and profit!
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pakrym-oai 2026-02-11 20:03:19 -08:00 • committed by GitHub
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commit b8e0d7594f
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14
.codex/skills/test-tui/SKILL.md Normal file
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@ -0,0 +1,14 @@
---
name: test-tui
description: Guide for testing Codex TUI interactively
---
You can start and use Codex TUI to verify changes.
Important notes:
Start interactively.
Always set RUST_LOG="trace" when starting the process.
Pass `-c log_dir=<some_temp_dir>` argument to have logs written to a specific directory to help with debugging.
When sending a test message programmatically, send text first, then send Enter in a separate write (do not send text + Enter in one burst).
Use `just codex` target to run - `just codex -c ...`

7
codex-rs/tui/src/custom_terminal.rs
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@ -147,7 +147,12 @@ where
/// Creates a new [`Terminal`] with the given [`Backend`] and [`TerminalOptions`].
pub fn with_options(mut backend: B) -> io::Result<Self> {
let screen_size = backend.size()?;
let cursor_pos = backend.get_cursor_position()?;
let cursor_pos = backend.get_cursor_position().unwrap_or_else(|err| {
// Some PTYs do not answer CPR (`ESC[6n`); continue with a safe default instead
// of failing TUI startup.
tracing::warn!("failed to read initial cursor position; defaulting to origin: {err}");
Position { x: 0, y: 0 }
});
Ok(Self {
backend,
buffers: [Buffer::empty(Rect::ZERO), Buffer::empty(Rect::ZERO)],