Function iter_mut_break

libs/error-stack/tests/test_iter.rs:117–132

()

#[test]
fn iter_mut_break() {
    let mut report = build();

    let mut chars = Vec::new();
    let flow = report.frames_mut(|frame| {
        if let Some(ch) = frame.downcast_ref::<Char>() {
            chars.push(ch.0);
            if ch.0 == 'D' {
                return ControlFlow::Break(());
            }
        }
        ControlFlow::Continue(())
    });
    assert!(flow.is_break());
    assert_eq!(chars, ['A', 'B', 'C', 'D']);
}