2b7139859e
We wait until we have an entire newline, then format it with markdown and stream in to the UI. This reduces time to first token but is the right thing to do with our current rendering model IMO. Also lets us add word wrapping!
78 lines
2.1 KiB
Rust
78 lines
2.1 KiB
Rust
#![cfg(feature = "vt100-tests")]
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use ratatui::backend::TestBackend;
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use ratatui::layout::Rect;
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use ratatui::text::Line;
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fn term(viewport: Rect) -> codex_tui::custom_terminal::Terminal<TestBackend> {
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let backend = TestBackend::new(20, 6);
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let mut term = codex_tui::custom_terminal::Terminal::with_options(backend)
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.unwrap_or_else(|e| panic!("failed to construct terminal: {e}"));
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term.set_viewport_area(viewport);
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term
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}
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#[test]
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fn stream_commit_trickle_no_duplication() {
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// Viewport is the last row (height=1 at y=5)
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let area = Rect::new(0, 5, 20, 1);
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let mut t = term(area);
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// Step 1: commit first row
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let mut out1 = Vec::new();
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codex_tui::insert_history::insert_history_lines_to_writer(
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&mut t,
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&mut out1,
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vec![Line::from("one")],
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);
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// Step 2: later commit next row
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let mut out2 = Vec::new();
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codex_tui::insert_history::insert_history_lines_to_writer(
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&mut t,
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&mut out2,
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vec![Line::from("two")],
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);
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let combined = [out1, out2].concat();
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let s = String::from_utf8_lossy(&combined);
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assert_eq!(
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s.matches("one").count(),
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1,
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"history line duplicated: {s:?}"
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);
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assert_eq!(
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s.matches("two").count(),
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1,
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"history line duplicated: {s:?}"
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);
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assert!(
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!s.contains("three"),
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"live-only content leaked into history: {s:?}"
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);
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}
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#[test]
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fn live_ring_rows_not_inserted_into_history() {
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let area = Rect::new(0, 5, 20, 1);
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let mut t = term(area);
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// Commit two rows to history.
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let mut buf = Vec::new();
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codex_tui::insert_history::insert_history_lines_to_writer(
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&mut t,
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&mut buf,
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vec![Line::from("one"), Line::from("two")],
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);
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// The live ring might display tail+head rows like ["two", "three"],
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// but only committed rows should be present in the history ANSI stream.
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let s = String::from_utf8_lossy(&buf);
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assert!(s.contains("one"));
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assert!(s.contains("two"));
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assert!(
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!s.contains("three"),
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"uncommitted live-ring content should not be inserted into history: {s:?}"
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);
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}
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