X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/117891878e5be4d6b771ae5de299e51b679cea27..73cb6e7734370108742d992d4fe1fa2829f100fd:/tests/test_black.py diff --git a/tests/test_black.py b/tests/test_black.py index 3d5d398..8d691d2 100644 --- a/tests/test_black.py +++ b/tests/test_black.py @@ -31,7 +31,7 @@ from unittest.mock import MagicMock, patch import click import pytest -import regex as re +import re from click import unstyle from click.testing import CliRunner from pathspec import PathSpec @@ -40,7 +40,7 @@ import black import black.files from black import Feature, TargetVersion from black import re_compile_maybe_verbose as compile_pattern -from black.cache import get_cache_file +from black.cache import get_cache_dir, get_cache_file from black.debug import DebugVisitor from black.output import color_diff, diff from black.report import Report @@ -70,7 +70,7 @@ T = TypeVar("T") R = TypeVar("R") # Match the time output in a diff, but nothing else -DIFF_TIME = re.compile(r"\t[\d-:+\. ]+") +DIFF_TIME = re.compile(r"\t[\d\-:+\. ]+") @contextmanager @@ -100,6 +100,8 @@ class FakeContext(click.Context): def __init__(self) -> None: self.default_map: Dict[str, Any] = {} + # Dummy root, since most of the tests don't care about it + self.obj: Dict[str, Any] = {"root": PROJECT_ROOT} class FakeParameter(click.Parameter): @@ -148,6 +150,11 @@ class BlackTestCase(BlackBaseTestCase): os.unlink(tmp_file) self.assertFormatEqual(expected, actual) + def test_experimental_string_processing_warns(self) -> None: + self.assertWarns( + black.mode.Deprecated, black.Mode, experimental_string_processing=True + ) + def test_piping(self) -> None: source, expected = read_data("src/black/__init__", data=False) result = BlackRunner().invoke( @@ -200,7 +207,7 @@ class BlackTestCase(BlackBaseTestCase): ) actual = result.output # Again, the contents are checked in a different test, so only look for colors. - self.assertIn("\033[1;37m", actual) + self.assertIn("\033[1m", actual) self.assertIn("\033[36m", actual) self.assertIn("\033[32m", actual) self.assertIn("\033[31m", actual) @@ -323,7 +330,7 @@ class BlackTestCase(BlackBaseTestCase): actual = result.output # We check the contents of the diff in `test_expression_diff`. All # we need to check here is that color codes exist in the result. - self.assertIn("\033[1;37m", actual) + self.assertIn("\033[1m", actual) self.assertIn("\033[36m", actual) self.assertIn("\033[32m", actual) self.assertIn("\033[31m", actual) @@ -340,7 +347,7 @@ class BlackTestCase(BlackBaseTestCase): @patch("black.dump_to_file", dump_to_stderr) def test_string_quotes(self) -> None: source, expected = read_data("string_quotes") - mode = black.Mode(experimental_string_processing=True) + mode = black.Mode(preview=True) assert_format(source, expected, mode) mode = replace(mode, string_normalization=False) not_normalized = fs(source, mode=mode) @@ -724,24 +731,15 @@ class BlackTestCase(BlackBaseTestCase): straddling = "x + y" black.lib2to3_parse(straddling) - black.lib2to3_parse(straddling, {TargetVersion.PY27}) black.lib2to3_parse(straddling, {TargetVersion.PY36}) - black.lib2to3_parse(straddling, {TargetVersion.PY27, TargetVersion.PY36}) py2_only = "print x" - black.lib2to3_parse(py2_only) - black.lib2to3_parse(py2_only, {TargetVersion.PY27}) with self.assertRaises(black.InvalidInput): black.lib2to3_parse(py2_only, {TargetVersion.PY36}) - with self.assertRaises(black.InvalidInput): - black.lib2to3_parse(py2_only, {TargetVersion.PY27, TargetVersion.PY36}) py3_only = "exec(x, end=y)" black.lib2to3_parse(py3_only) - with self.assertRaises(black.InvalidInput): - black.lib2to3_parse(py3_only, {TargetVersion.PY27}) black.lib2to3_parse(py3_only, {TargetVersion.PY36}) - black.lib2to3_parse(py3_only, {TargetVersion.PY27, TargetVersion.PY36}) def test_get_features_used_decorator(self) -> None: # Test the feature detection of new decorator syntax @@ -810,6 +808,44 @@ class BlackTestCase(BlackBaseTestCase): self.assertEqual(black.get_features_used(node), {Feature.POS_ONLY_ARGUMENTS}) node = black.lib2to3_parse("def fn(a, /, b): ...") self.assertEqual(black.get_features_used(node), {Feature.POS_ONLY_ARGUMENTS}) + node = black.lib2to3_parse("def fn(): yield a, b") + self.assertEqual(black.get_features_used(node), set()) + node = black.lib2to3_parse("def fn(): return a, b") + self.assertEqual(black.get_features_used(node), set()) + node = black.lib2to3_parse("def fn(): yield *b, c") + self.assertEqual(black.get_features_used(node), {Feature.UNPACKING_ON_FLOW}) + node = black.lib2to3_parse("def fn(): return a, *b, c") + self.assertEqual(black.get_features_used(node), {Feature.UNPACKING_ON_FLOW}) + node = black.lib2to3_parse("x = a, *b, c") + self.assertEqual(black.get_features_used(node), set()) + node = black.lib2to3_parse("x: Any = regular") + self.assertEqual(black.get_features_used(node), set()) + node = black.lib2to3_parse("x: Any = (regular, regular)") + self.assertEqual(black.get_features_used(node), set()) + node = black.lib2to3_parse("x: Any = Complex(Type(1))[something]") + self.assertEqual(black.get_features_used(node), set()) + node = black.lib2to3_parse("x: Tuple[int, ...] = a, b, c") + self.assertEqual( + black.get_features_used(node), {Feature.ANN_ASSIGN_EXTENDED_RHS} + ) + + def test_get_features_used_for_future_flags(self) -> None: + for src, features in [ + ("from __future__ import annotations", {Feature.FUTURE_ANNOTATIONS}), + ( + "from __future__ import (other, annotations)", + {Feature.FUTURE_ANNOTATIONS}, + ), + ("a = 1 + 2\nfrom something import annotations", set()), + ("from __future__ import x, y", set()), + ]: + with self.subTest(src=src, features=features): + node = black.lib2to3_parse(src) + future_imports = black.get_future_imports(node) + self.assertEqual( + black.get_features_used(node, future_imports=future_imports), + features, + ) def test_get_future_imports(self) -> None: node = black.lib2to3_parse("\n") @@ -909,8 +945,8 @@ class BlackTestCase(BlackBaseTestCase): self.assertFormatEqual("j = [1, 2, 3]", "j = [1, 2, 3,]") out_str = "".join(out_lines) - self.assertTrue("Expected tree:" in out_str) - self.assertTrue("Actual tree:" in out_str) + self.assertIn("Expected tree:", out_str) + self.assertIn("Actual tree:", out_str) self.assertEqual("".join(err_lines), "") @event_loop() @@ -936,10 +972,13 @@ class BlackTestCase(BlackBaseTestCase): # Multi file command. self.invokeBlack([str(src1), str(src2), "--diff", "--check"], exit_code=1) - def test_no_files(self) -> None: + def test_no_src_fails(self) -> None: with cache_dir(): - # Without an argument, black exits with error code 0. - self.invokeBlack([]) + self.invokeBlack([], exit_code=1) + + def test_src_and_code_fails(self) -> None: + with cache_dir(): + self.invokeBlack([".", "-c", "0"], exit_code=1) def test_broken_symlink(self) -> None: with cache_dir() as workspace: @@ -1193,13 +1232,18 @@ class BlackTestCase(BlackBaseTestCase): def test_required_version_matches_version(self) -> None: self.invokeBlack( - ["--required-version", black.__version__], exit_code=0, ignore_config=True + ["--required-version", black.__version__, "-c", "0"], + exit_code=0, + ignore_config=True, ) def test_required_version_does_not_match_version(self) -> None: - self.invokeBlack( - ["--required-version", "20.99b"], exit_code=1, ignore_config=True + result = BlackRunner().invoke( + black.main, + ["--required-version", "20.99b", "-c", "0"], ) + self.assertEqual(result.exit_code, 1) + self.assertIn("required version", result.stderr) def test_preserves_line_endings(self) -> None: with TemporaryDirectory() as workspace: @@ -1286,6 +1330,7 @@ class BlackTestCase(BlackBaseTestCase): self.assertEqual(config["color"], True) self.assertEqual(config["line_length"], 79) self.assertEqual(config["target_version"], ["py36", "py37", "py38"]) + self.assertEqual(config["python_cell_magics"], ["custom1", "custom2"]) self.assertEqual(config["exclude"], r"\.pyi?$") self.assertEqual(config["include"], r"\.py?$") @@ -1321,10 +1366,17 @@ class BlackTestCase(BlackBaseTestCase): src_python.touch() self.assertEqual( - black.find_project_root((src_dir, test_dir)), root.resolve() + black.find_project_root((src_dir, test_dir)), + (root.resolve(), "pyproject.toml"), + ) + self.assertEqual( + black.find_project_root((src_dir,)), + (src_dir.resolve(), "pyproject.toml"), + ) + self.assertEqual( + black.find_project_root((src_python,)), + (src_dir.resolve(), "pyproject.toml"), ) - self.assertEqual(black.find_project_root((src_dir,)), src_dir.resolve()) - self.assertEqual(black.find_project_root((src_python,)), src_dir.resolve()) @patch( "black.files.find_user_pyproject_toml", @@ -1398,27 +1450,6 @@ class BlackTestCase(BlackBaseTestCase): actual = diff_header.sub(DETERMINISTIC_HEADER, actual) self.assertEqual(actual, expected) - @pytest.mark.python2 - def test_docstring_reformat_for_py27(self) -> None: - """ - Check that stripping trailing whitespace from Python 2 docstrings - doesn't trigger a "not equivalent to source" error - """ - source = ( - b'def foo():\r\n """Testing\r\n Testing """\r\n print "Foo"\r\n' - ) - expected = 'def foo():\n """Testing\n Testing"""\n print "Foo"\n' - - result = BlackRunner().invoke( - black.main, - ["-", "-q", "--target-version=py27"], - input=BytesIO(source), - ) - - self.assertEqual(result.exit_code, 0) - actual = result.stdout - self.assertFormatEqual(actual, expected) - @staticmethod def compare_results( result: click.testing.Result, expected_value: str, expected_exit_code: int @@ -1557,8 +1588,54 @@ class BlackTestCase(BlackBaseTestCase): call_args[0].lower() == str(pyproject_path).lower() ), "Incorrect config loaded." + def test_for_handled_unexpected_eof_error(self) -> None: + """ + Test that an unexpected EOF SyntaxError is nicely presented. + """ + with pytest.raises(black.parsing.InvalidInput) as exc_info: + black.lib2to3_parse("print(", {}) + + exc_info.match("Cannot parse: 2:0: EOF in multi-line statement") + + def test_equivalency_ast_parse_failure_includes_error(self) -> None: + with pytest.raises(AssertionError) as err: + black.assert_equivalent("a«»a = 1", "a«»a = 1") + + err.match("--safe") + # Unfortunately the SyntaxError message has changed in newer versions so we + # can't match it directly. + err.match("invalid character") + err.match(r"\(, line 1\)") + class TestCaching: + def test_get_cache_dir( + self, + tmp_path: Path, + monkeypatch: pytest.MonkeyPatch, + ) -> None: + # Create multiple cache directories + workspace1 = tmp_path / "ws1" + workspace1.mkdir() + workspace2 = tmp_path / "ws2" + workspace2.mkdir() + + # Force user_cache_dir to use the temporary directory for easier assertions + patch_user_cache_dir = patch( + target="black.cache.user_cache_dir", + autospec=True, + return_value=str(workspace1), + ) + + # If BLACK_CACHE_DIR is not set, use user_cache_dir + monkeypatch.delenv("BLACK_CACHE_DIR", raising=False) + with patch_user_cache_dir: + assert get_cache_dir() == workspace1 + + # If it is set, use the path provided in the env var. + monkeypatch.setenv("BLACK_CACHE_DIR", str(workspace2)) + assert get_cache_dir() == workspace2 + def test_cache_broken_file(self) -> None: mode = DEFAULT_MODE with cache_dir() as workspace: @@ -1729,6 +1806,7 @@ def assert_collected_sources( src: Sequence[Union[str, Path]], expected: Sequence[Union[str, Path]], *, + ctx: Optional[FakeContext] = None, exclude: Optional[str] = None, include: Optional[str] = None, extend_exclude: Optional[str] = None, @@ -1744,7 +1822,7 @@ def assert_collected_sources( ) gs_force_exclude = None if force_exclude is None else compile_pattern(force_exclude) collected = black.get_sources( - ctx=FakeContext(), + ctx=ctx or FakeContext(), src=gs_src, quiet=False, verbose=False, @@ -1755,7 +1833,7 @@ def assert_collected_sources( report=black.Report(), stdin_filename=stdin_filename, ) - assert sorted(list(collected)) == sorted(gs_expected) + assert sorted(collected) == sorted(gs_expected) class TestFileCollection: @@ -1780,9 +1858,11 @@ class TestFileCollection: base / "b/.definitely_exclude/a.pyi", ] src = [base / "b/"] - assert_collected_sources(src, expected, extend_exclude=r"/exclude/") + ctx = FakeContext() + ctx.obj["root"] = base + assert_collected_sources(src, expected, ctx=ctx, extend_exclude=r"/exclude/") - @patch("black.find_project_root", lambda *args: THIS_DIR.resolve()) + @patch("black.find_project_root", lambda *args: (THIS_DIR.resolve(), None)) def test_exclude_for_issue_1572(self) -> None: # Exclude shouldn't touch files that were explicitly given to Black through the # CLI. Exclude is supposed to only apply to the recursive discovery of files. @@ -1965,13 +2045,13 @@ class TestFileCollection: child.is_symlink.assert_called() assert child.is_symlink.call_count == 2 - @patch("black.find_project_root", lambda *args: THIS_DIR.resolve()) + @patch("black.find_project_root", lambda *args: (THIS_DIR.resolve(), None)) def test_get_sources_with_stdin(self) -> None: src = ["-"] expected = ["-"] assert_collected_sources(src, expected, include="", exclude=r"/exclude/|a\.py") - @patch("black.find_project_root", lambda *args: THIS_DIR.resolve()) + @patch("black.find_project_root", lambda *args: (THIS_DIR.resolve(), None)) def test_get_sources_with_stdin_filename(self) -> None: src = ["-"] stdin_filename = str(THIS_DIR / "data/collections.py") @@ -1983,7 +2063,7 @@ class TestFileCollection: stdin_filename=stdin_filename, ) - @patch("black.find_project_root", lambda *args: THIS_DIR.resolve()) + @patch("black.find_project_root", lambda *args: (THIS_DIR.resolve(), None)) def test_get_sources_with_stdin_filename_and_exclude(self) -> None: # Exclude shouldn't exclude stdin_filename since it is mimicking the # file being passed directly. This is the same as @@ -1999,7 +2079,7 @@ class TestFileCollection: stdin_filename=stdin_filename, ) - @patch("black.find_project_root", lambda *args: THIS_DIR.resolve()) + @patch("black.find_project_root", lambda *args: (THIS_DIR.resolve(), None)) def test_get_sources_with_stdin_filename_and_extend_exclude(self) -> None: # Extend exclude shouldn't exclude stdin_filename since it is mimicking the # file being passed directly. This is the same as @@ -2015,7 +2095,7 @@ class TestFileCollection: stdin_filename=stdin_filename, ) - @patch("black.find_project_root", lambda *args: THIS_DIR.resolve()) + @patch("black.find_project_root", lambda *args: (THIS_DIR.resolve(), None)) def test_get_sources_with_stdin_filename_and_force_exclude(self) -> None: # Force exclude should exclude the file when passing it through # stdin_filename @@ -2029,36 +2109,6 @@ class TestFileCollection: ) -@pytest.mark.python2 -@pytest.mark.parametrize("explicit", [True, False], ids=["explicit", "autodetection"]) -def test_python_2_deprecation_with_target_version(explicit: bool) -> None: - args = [ - "--config", - str(THIS_DIR / "empty.toml"), - str(DATA_DIR / "python2.py"), - "--check", - ] - if explicit: - args.append("--target-version=py27") - with cache_dir(): - result = BlackRunner().invoke(black.main, args) - assert "DEPRECATION: Python 2 support will be removed" in result.stderr - - -@pytest.mark.python2 -def test_python_2_deprecation_autodetection_extended() -> None: - # this test has a similar construction to test_get_features_used_decorator - python2, non_python2 = read_data("python2_detection") - for python2_case in python2.split("###"): - node = black.lib2to3_parse(python2_case) - assert black.detect_target_versions(node) == {TargetVersion.PY27}, python2_case - for non_python2_case in non_python2.split("###"): - node = black.lib2to3_parse(non_python2_case) - assert black.detect_target_versions(node) != { - TargetVersion.PY27 - }, non_python2_case - - try: with open(black.__file__, "r", encoding="utf-8") as _bf: black_source_lines = _bf.readlines()