| from textual._text_backend import TextEditorBackend | |
| CONTENT = "Hello, world!" | |
| def test_set_content(): | |
| editor = TextEditorBackend() | |
| editor.set_content(CONTENT) | |
| assert editor.content == CONTENT | |
| def test_delete_back_cursor_at_start_is_noop(): | |
| editor = TextEditorBackend(CONTENT) | |
| assert not editor.delete_back() | |
| assert editor == TextEditorBackend(CONTENT, 0) | |
| def test_delete_back_cursor_at_end(): | |
| editor = TextEditorBackend(CONTENT) | |
| assert editor.cursor_text_end() | |
| assert editor.delete_back() | |
| assert editor == TextEditorBackend("Hello, world", 12) | |
| def test_delete_back_cursor_in_middle(): | |
| editor = TextEditorBackend(CONTENT, 5) | |
| assert editor.delete_back() | |
| assert editor == TextEditorBackend("Hell, world!", 4) | |
| def test_delete_forward_cursor_at_start(): | |
| editor = TextEditorBackend(CONTENT) | |
| assert editor.delete_forward() | |
| assert editor.content == "ello, world!" | |
| def test_delete_forward_cursor_at_end_is_noop(): | |
| editor = TextEditorBackend(CONTENT) | |
| assert editor.cursor_text_end() | |
| assert not editor.delete_forward() | |
| assert editor == TextEditorBackend(CONTENT, len(CONTENT)) | |
| def test_delete_forward_cursor_in_middle(): | |
| editor = TextEditorBackend(CONTENT, 5) | |
| editor.cursor_index = 5 | |
| assert editor.delete_forward() | |
| assert editor == TextEditorBackend("Hello world!", 5) | |
| def test_cursor_left_cursor_at_start_is_noop(): | |
| editor = TextEditorBackend(CONTENT) | |
| assert not editor.cursor_left() | |
| assert editor == TextEditorBackend(CONTENT) | |
| def test_cursor_left_cursor_in_middle(): | |
| editor = TextEditorBackend(CONTENT, 6) | |
| assert editor.cursor_left() | |
| assert editor == TextEditorBackend(CONTENT, 5) | |
| def test_cursor_left_cursor_at_end(): | |
| editor = TextEditorBackend(CONTENT, len(CONTENT)) | |
| assert editor.cursor_left() | |
| assert editor == TextEditorBackend(CONTENT, len(CONTENT) - 1) | |
| def test_cursor_right_cursor_at_start(): | |
| editor = TextEditorBackend(CONTENT) | |
| assert editor.cursor_right() | |
| assert editor == TextEditorBackend(CONTENT, 1) | |
| def test_cursor_right_cursor_in_middle(): | |
| editor = TextEditorBackend(CONTENT, 5) | |
| assert editor.cursor_right() | |
| assert editor == TextEditorBackend(CONTENT, 6) | |
| def test_cursor_right_cursor_at_end_is_noop(): | |
| editor = TextEditorBackend(CONTENT, len(CONTENT)) | |
| editor.cursor_right() | |
| assert editor == TextEditorBackend(CONTENT, len(CONTENT)) | |
| def test_query_cursor_left_cursor_at_start_returns_false(): | |
| editor = TextEditorBackend(CONTENT) | |
| assert not editor.query_cursor_left() | |
| def test_query_cursor_left_cursor_at_end_returns_true(): | |
| editor = TextEditorBackend(CONTENT, len(CONTENT)) | |
| assert editor.query_cursor_left() | |
| def test_query_cursor_left_cursor_in_middle_returns_true(): | |
| editor = TextEditorBackend(CONTENT, 6) | |
| assert editor.query_cursor_left() | |
| def test_query_cursor_right_cursor_at_start_returns_true(): | |
| editor = TextEditorBackend(CONTENT) | |
| assert editor.query_cursor_right() | |
| def test_query_cursor_right_cursor_in_middle_returns_true(): | |
| editor = TextEditorBackend(CONTENT, 6) | |
| assert editor.query_cursor_right() | |
| def test_query_cursor_right_cursor_at_end_returns_false(): | |
| editor = TextEditorBackend(CONTENT, len(CONTENT)) | |
| assert not editor.query_cursor_right() | |
| def test_cursor_text_start_cursor_already_at_start(): | |
| editor = TextEditorBackend(CONTENT) | |
| assert not editor.cursor_text_start() | |
| assert editor.cursor_index == 0 | |
| def test_cursor_text_start_cursor_in_middle(): | |
| editor = TextEditorBackend(CONTENT, 6) | |
| assert editor.cursor_text_start() | |
| assert editor.cursor_index == 0 | |
| def test_cursor_text_end_cursor_already_at_end(): | |
| editor = TextEditorBackend(CONTENT, len(CONTENT)) | |
| assert not editor.cursor_text_end() | |
| assert editor.cursor_index == len(CONTENT) | |
| def test_cursor_text_end_cursor_in_middle(): | |
| editor = TextEditorBackend(CONTENT, len(CONTENT)) | |
| assert not editor.cursor_text_end() | |
| assert editor.cursor_index == len(CONTENT) | |
| def test_insert_at_cursor_cursor_at_start(): | |
| editor = TextEditorBackend(CONTENT) | |
| assert editor.insert("ABC") | |
| assert editor.content == "ABC" + CONTENT | |
| assert editor.cursor_index == len("ABC") | |
| def test_insert_at_cursor_cursor_in_middle(): | |
| start_cursor_index = 6 | |
| editor = TextEditorBackend(CONTENT, start_cursor_index) | |
| assert editor.insert("ABC") | |
| assert editor.content == "Hello,ABC world!" | |
| assert editor.cursor_index == start_cursor_index + len("ABC") | |
| def test_insert_at_cursor_cursor_at_end(): | |
| editor = TextEditorBackend(CONTENT, len(CONTENT)) | |
| assert editor.insert("ABC") | |
| assert editor.content == CONTENT + "ABC" | |
| assert editor.cursor_index == len(editor.content) | |
| def test_get_range(): | |
| editor = TextEditorBackend(CONTENT) | |
| assert editor.get_range(0, 5) == "Hello" | |