78 lines
2.1 KiB
Rust
78 lines
2.1 KiB
Rust
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#![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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