X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/de806405d2934b629d67e2a6317ad7e826765a20..6b5eb7d4651c7333cc3f5df4bf7aa7a1f1ffb45b:/tests/test_black.py?ds=sidebyside diff --git a/tests/test_black.py b/tests/test_black.py index 896ad0c..e09feff 100644 --- a/tests/test_black.py +++ b/tests/test_black.py @@ -2,7 +2,7 @@ import asyncio import logging from concurrent.futures import ThreadPoolExecutor -from contextlib import contextmanager, redirect_stderr +from contextlib import contextmanager from functools import partial, wraps from io import BytesIO, TextIOWrapper import os @@ -111,6 +111,15 @@ def async_test(f: Callable[..., Coroutine[Any, None, R]]) -> Callable[..., None] return wrapper +@contextmanager +def skip_if_exception(e: str) -> Iterator[None]: + try: + yield + except Exception as exc: + if exc.__class__.__name__ == e: + unittest.skip(f"Encountered expected exception {exc}, skipping") + + class BlackRunner(CliRunner): """Modify CliRunner so that stderr is not merged with stdout. @@ -264,6 +273,14 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, black.FileMode()) + @patch("black.dump_to_file", dump_to_stderr) + def test_function_trailing_comma(self) -> None: + source, expected = read_data("function_trailing_comma") + actual = fs(source) + self.assertFormatEqual(expected, actual) + black.assert_equivalent(source, actual) + black.assert_stable(source, actual, black.FileMode()) + @patch("black.dump_to_file", dump_to_stderr) def test_expression(self) -> None: source, expected = read_data("expression") @@ -272,6 +289,23 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, black.FileMode()) + @patch("black.dump_to_file", dump_to_stderr) + def test_pep_572(self) -> None: + source, expected = read_data("pep_572") + actual = fs(source) + self.assertFormatEqual(expected, actual) + black.assert_stable(source, actual, black.FileMode()) + if sys.version_info >= (3, 8): + black.assert_equivalent(source, actual) + + def test_pep_572_version_detection(self) -> None: + source, _ = read_data("pep_572") + root = black.lib2to3_parse(source) + features = black.get_features_used(root) + self.assertIn(black.Feature.ASSIGNMENT_EXPRESSIONS, features) + versions = black.detect_target_versions(root) + self.assertIn(black.TargetVersion.PY38, versions) + def test_expression_ff(self) -> None: source, expected = read_data("expression") tmp_file = Path(black.dump_to_file(source)) @@ -319,6 +353,23 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, black.FileMode()) + @patch("black.dump_to_file", dump_to_stderr) + def test_pep_570(self) -> None: + source, expected = read_data("pep_570") + actual = fs(source) + self.assertFormatEqual(expected, actual) + black.assert_stable(source, actual, black.FileMode()) + if sys.version_info >= (3, 8): + black.assert_equivalent(source, actual) + + def test_detect_pos_only_arguments(self) -> None: + source, _ = read_data("pep_570") + root = black.lib2to3_parse(source) + features = black.get_features_used(root) + self.assertIn(black.Feature.POS_ONLY_ARGUMENTS, features) + versions = black.detect_target_versions(root) + self.assertIn(black.TargetVersion.PY38, versions) + @patch("black.dump_to_file", dump_to_stderr) def test_string_quotes(self) -> None: source, expected = read_data("string_quotes") @@ -396,6 +447,14 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, black.FileMode()) + @patch("black.dump_to_file", dump_to_stderr) + def test_comment_after_escaped_newline(self) -> None: + source, expected = read_data("comment_after_escaped_newline") + actual = fs(source) + self.assertFormatEqual(expected, actual) + black.assert_equivalent(source, actual) + black.assert_stable(source, actual, black.FileMode()) + @patch("black.dump_to_file", dump_to_stderr) def test_cantfit(self) -> None: source, expected = read_data("cantfit") @@ -428,6 +487,14 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, black.FileMode()) + @patch("black.dump_to_file", dump_to_stderr) + def test_remove_parens(self) -> None: + source, expected = read_data("remove_parens") + actual = fs(source) + self.assertFormatEqual(expected, actual) + black.assert_equivalent(source, actual) + black.assert_stable(source, actual, black.FileMode()) + @patch("black.dump_to_file", dump_to_stderr) def test_string_prefixes(self) -> None: source, expected = read_data("string_prefixes") @@ -466,7 +533,7 @@ class BlackTestCase(unittest.TestCase): source, expected = read_data("python2") actual = fs(source) self.assertFormatEqual(expected, actual) - # black.assert_equivalent(source, actual) + black.assert_equivalent(source, actual) black.assert_stable(source, actual, black.FileMode()) @patch("black.dump_to_file", dump_to_stderr) @@ -475,6 +542,7 @@ class BlackTestCase(unittest.TestCase): mode = black.FileMode(target_versions={TargetVersion.PY27}) actual = fs(source, mode=mode) self.assertFormatEqual(expected, actual) + black.assert_equivalent(source, actual) black.assert_stable(source, actual, mode) @patch("black.dump_to_file", dump_to_stderr) @@ -482,6 +550,7 @@ class BlackTestCase(unittest.TestCase): source, expected = read_data("python2_unicode_literals") actual = fs(source) self.assertFormatEqual(expected, actual) + black.assert_equivalent(source, actual) black.assert_stable(source, actual, black.FileMode()) @patch("black.dump_to_file", dump_to_stderr) @@ -492,8 +561,24 @@ class BlackTestCase(unittest.TestCase): self.assertFormatEqual(expected, actual) black.assert_stable(source, actual, mode) + @patch("black.dump_to_file", dump_to_stderr) + def test_async_as_identifier(self) -> None: + source_path = (THIS_DIR / "data" / "async_as_identifier.py").resolve() + source, expected = read_data("async_as_identifier") + actual = fs(source) + self.assertFormatEqual(expected, actual) + major, minor = sys.version_info[:2] + if major < 3 or (major <= 3 and minor < 7): + black.assert_equivalent(source, actual) + black.assert_stable(source, actual, black.FileMode()) + # ensure black can parse this when the target is 3.6 + self.invokeBlack([str(source_path), "--target-version", "py36"]) + # but not on 3.7, because async/await is no longer an identifier + self.invokeBlack([str(source_path), "--target-version", "py37"], exit_code=123) + @patch("black.dump_to_file", dump_to_stderr) def test_python37(self) -> None: + source_path = (THIS_DIR / "data" / "python37.py").resolve() source, expected = read_data("python37") actual = fs(source) self.assertFormatEqual(expected, actual) @@ -501,6 +586,10 @@ class BlackTestCase(unittest.TestCase): if major > 3 or (major == 3 and minor >= 7): black.assert_equivalent(source, actual) black.assert_stable(source, actual, black.FileMode()) + # ensure black can parse this when the target is 3.7 + self.invokeBlack([str(source_path), "--target-version", "py37"]) + # but not on 3.6, because we use async as a reserved keyword + self.invokeBlack([str(source_path), "--target-version", "py36"], exit_code=123) @patch("black.dump_to_file", dump_to_stderr) def test_fmtonoff(self) -> None: @@ -1434,6 +1523,9 @@ class BlackTestCase(unittest.TestCase): ): ff(THIS_FILE) + # TODO: remove these decorators once the below is released + # https://github.com/aio-libs/aiohttp/commit/bfb99eb92bbc4a7462bc51dda3e480feed43882d + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") @async_test async def test_blackd_request_needs_formatting(self) -> None: @@ -1444,6 +1536,7 @@ class BlackTestCase(unittest.TestCase): self.assertEqual(response.charset, "utf8") self.assertEqual(await response.read(), b'print("hello world")\n') + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") @async_test async def test_blackd_request_no_change(self) -> None: @@ -1453,6 +1546,7 @@ class BlackTestCase(unittest.TestCase): self.assertEqual(response.status, 204) self.assertEqual(await response.read(), b"") + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") @async_test async def test_blackd_request_syntax_error(self) -> None: @@ -1466,6 +1560,7 @@ class BlackTestCase(unittest.TestCase): msg=f"Expected error to start with 'Cannot parse', got {repr(content)}", ) + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") @async_test async def test_blackd_unsupported_version(self) -> None: @@ -1476,6 +1571,7 @@ class BlackTestCase(unittest.TestCase): ) self.assertEqual(response.status, 501) + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") @async_test async def test_blackd_supported_version(self) -> None: @@ -1486,6 +1582,7 @@ class BlackTestCase(unittest.TestCase): ) self.assertEqual(response.status, 200) + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") @async_test async def test_blackd_invalid_python_variant(self) -> None: @@ -1510,6 +1607,7 @@ class BlackTestCase(unittest.TestCase): await check("pypy3.0") await check("jython3.4") + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") @async_test async def test_blackd_pyi(self) -> None: @@ -1522,6 +1620,7 @@ class BlackTestCase(unittest.TestCase): self.assertEqual(response.status, 200) self.assertEqual(await response.text(), expected) + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") @async_test async def test_blackd_python_variant(self) -> None: @@ -1554,20 +1653,7 @@ class BlackTestCase(unittest.TestCase): await check("3.4", 204) await check("py3.4", 204) - @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @async_test - async def test_blackd_fast(self) -> None: - with open(os.devnull, "w") as dn, redirect_stderr(dn): - app = blackd.make_app() - async with TestClient(TestServer(app)) as client: - response = await client.post("/", data=b"ur'hello'") - self.assertEqual(response.status, 500) - self.assertIn("failed to parse source file", await response.text()) - response = await client.post( - "/", data=b"ur'hello'", headers={blackd.FAST_OR_SAFE_HEADER: "fast"} - ) - self.assertEqual(response.status, 200) - + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") @async_test async def test_blackd_line_length(self) -> None: @@ -1578,6 +1664,7 @@ class BlackTestCase(unittest.TestCase): ) self.assertEqual(response.status, 200) + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") @async_test async def test_blackd_invalid_line_length(self) -> None: