//! Regression test: ensure that `StatusIndicatorWidget` sanitises ANSI escape//! sequences so that no raw `\x1b` bytes are written into the backing//! buffer.  Rendering logic is tricky to unit‑test end‑to‑end, therefore we//! verify the *public* contract of `ansi_escape_line()` which the widget now//! relies on.use codex_ansi_escape::ansi_escape_line;#[test]fn ansi_escape_line_strips_escape_sequences() {    let text_in_ansi_red = "\x1b[31mRED\x1b[0m";    // The returned line must contain three printable glyphs and **no** raw    // escape bytes.    let line = ansi_escape_line(text_in_ansi_red);    let combined: String = line        .spans        .iter()        .map(|span| span.content.to_string())        .collect();    assert_eq!(combined, "RED");}