Function selection_extracts_rope_slice

src/editor/buffer.rs:453–460

()

    #[test]
    fn selection_extracts_rope_slice() {
        let mut buffer = EditorBuffer::from_str("one\ntwo\nthree");
        buffer.set_cursor(0, 1);
        buffer.start_selection();
        buffer.set_cursor(2, 2);

        assert_eq!(buffer.selected_text().as_deref(), Some("ne\ntwo\nth"));
    }

    #[test]
    fn undo_reverts_insert_delete_and_newline() {