bezel-ui 0.1.20

use gpui::{EntityInputHandler, TestAppContext};
use ui::input::TextField;

#[gpui::test]
fn composition_selection_is_relative_to_replacement_text(cx: &mut TestAppContext) {
    cx.update(|cx| theme::Theme::install(theme::Appearance::Dark, cx));
    let window = cx.add_window(|_, cx| TextField::new(cx));
    window
        .update(cx, |field, window, cx| {
            field.set_content("中abc!", cx);
            // Replace ASCII after a Chinese prefix; select the emoji inside
            // the replacement. The old range has a different length.
            field.replace_and_mark_text_in_range(Some(1..4), "😀文", Some(0..2), window, cx);
            assert_eq!(field.content().as_ref(), "中😀文!");
            assert_eq!(field.marked_text_range(window, cx), Some(1..4));
            assert_eq!(
                field.selected_text_range(false, window, cx).unwrap().range,
                1..3
            );
            // Update the marked range, with no explicit replacement range.
            field.replace_and_mark_text_in_range(None, "中文", Some(1..1), window, cx);
            assert_eq!(field.content().as_ref(), "中中文!");
            assert_eq!(
                field.selected_text_range(false, window, cx).unwrap().range,
                2..2
            );
            field.replace_text_in_range(None, "文", window, cx);
            assert_eq!(field.content().as_ref(), "中文!");
            assert_eq!(field.marked_text_range(window, cx), None);
        })
        .unwrap();
}