X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/c6a031e623c7991ac9129f578dc21dffe2d7ede3..9b82120ddb81373377b58da5de7caa9495a1551e:/tests/test_black.py diff --git a/tests/test_black.py b/tests/test_black.py index 8ae9217..c665eee 100644 --- a/tests/test_black.py +++ b/tests/test_black.py @@ -9,7 +9,6 @@ import os import re import sys import types -import unittest from concurrent.futures import ThreadPoolExecutor from contextlib import contextmanager, redirect_stderr from dataclasses import replace @@ -492,9 +491,7 @@ class BlackTestCase(BlackBaseTestCase): project_root = Path(THIS_DIR / "data" / "nested_gitignore_tests") working_directory = project_root / "root" target_abspath = working_directory / "child" - target_contents = ( - src.relative_to(working_directory) for src in target_abspath.iterdir() - ) + target_contents = list(target_abspath.iterdir()) def mock_n_calls(responses: List[bool]) -> Callable[[], bool]: def _mocked_calls() -> bool: @@ -507,13 +504,11 @@ class BlackTestCase(BlackBaseTestCase): with patch("pathlib.Path.iterdir", return_value=target_contents), patch( "pathlib.Path.cwd", return_value=working_directory ), patch("pathlib.Path.is_dir", side_effect=mock_n_calls([True])): - ctx = FakeContext() # Note that the root folder (project_root) isn't the folder # named "root" (aka working_directory) - ctx.obj["root"] = project_root report = MagicMock(verbose=True) black.get_sources( - ctx=ctx, + root=project_root, src=("./child",), quiet=False, verbose=True, @@ -1051,9 +1046,10 @@ class BlackTestCase(BlackBaseTestCase): self.assertEqual(len(n.children), 1) self.assertEqual(n.children[0].type, black.token.ENDMARKER) + @patch("tests.conftest.PRINT_FULL_TREE", True) + @patch("tests.conftest.PRINT_TREE_DIFF", False) @pytest.mark.incompatible_with_mypyc - @unittest.skipIf(os.environ.get("SKIP_AST_PRINT"), "user set SKIP_AST_PRINT") - def test_assertFormatEqual(self) -> None: + def test_assertFormatEqual_print_full_tree(self) -> None: out_lines = [] err_lines = [] @@ -1072,6 +1068,29 @@ class BlackTestCase(BlackBaseTestCase): self.assertIn("Actual tree:", out_str) self.assertEqual("".join(err_lines), "") + @patch("tests.conftest.PRINT_FULL_TREE", False) + @patch("tests.conftest.PRINT_TREE_DIFF", True) + @pytest.mark.incompatible_with_mypyc + def test_assertFormatEqual_print_tree_diff(self) -> None: + out_lines = [] + err_lines = [] + + def out(msg: str, **kwargs: Any) -> None: + out_lines.append(msg) + + def err(msg: str, **kwargs: Any) -> None: + err_lines.append(msg) + + with patch("black.output._out", out), patch("black.output._err", err): + with self.assertRaises(AssertionError): + self.assertFormatEqual("j = [1, 2, 3]\n", "j = [1, 2, 3,]\n") + + out_str = "".join(out_lines) + self.assertIn("Tree Diff:", out_str) + self.assertIn("+ COMMA", out_str) + self.assertIn("+ ','", out_str) + self.assertEqual("".join(err_lines), "") + @event_loop() @patch("concurrent.futures.ProcessPoolExecutor", MagicMock(side_effect=OSError)) def test_works_in_mono_process_only_environment(self) -> None: @@ -1989,6 +2008,7 @@ class TestCaching: assert not cache.is_changed(one) assert not cache.is_changed(two) + @pytest.mark.incompatible_with_mypyc @pytest.mark.parametrize("color", [False, True], ids=["no-color", "with-color"]) def test_no_cache_when_writeback_diff(self, color: bool) -> None: mode = DEFAULT_MODE @@ -2050,6 +2070,7 @@ class TestCaching: read_cache = black.Cache.read(mode) assert not read_cache.is_changed(src) + @pytest.mark.incompatible_with_mypyc def test_filter_cached(self) -> None: with TemporaryDirectory() as workspace: path = Path(workspace) @@ -2163,7 +2184,7 @@ def assert_collected_sources( src: Sequence[Union[str, Path]], expected: Sequence[Union[str, Path]], *, - ctx: Optional[FakeContext] = None, + root: Optional[Path] = None, exclude: Optional[str] = None, include: Optional[str] = None, extend_exclude: Optional[str] = None, @@ -2179,7 +2200,7 @@ def assert_collected_sources( ) gs_force_exclude = None if force_exclude is None else compile_pattern(force_exclude) collected = black.get_sources( - ctx=ctx or FakeContext(), + root=root or THIS_DIR, src=gs_src, quiet=False, verbose=False, @@ -2215,9 +2236,7 @@ class TestFileCollection: base / "b/.definitely_exclude/a.pyi", ] src = [base / "b/"] - ctx = FakeContext() - ctx.obj["root"] = base - assert_collected_sources(src, expected, ctx=ctx, extend_exclude=r"/exclude/") + assert_collected_sources(src, expected, root=base, extend_exclude=r"/exclude/") def test_gitignore_used_on_multiple_sources(self) -> None: root = Path(DATA_DIR / "gitignore_used_on_multiple_sources") @@ -2225,10 +2244,8 @@ class TestFileCollection: root / "dir1" / "b.py", root / "dir2" / "b.py", ] - ctx = FakeContext() - ctx.obj["root"] = root src = [root / "dir1", root / "dir2"] - assert_collected_sources(src, expected, ctx=ctx) + assert_collected_sources(src, expected, root=root) @patch("black.find_project_root", lambda *args: (THIS_DIR.resolve(), None)) def test_exclude_for_issue_1572(self) -> None: @@ -2334,9 +2351,7 @@ class TestFileCollection: # If gitignore with */* is in root root = Path(DATA_DIR / "ignore_subfolders_gitignore_tests" / "subdir") expected = [root / "b.py"] - ctx = FakeContext() - ctx.obj["root"] = root - assert_collected_sources([root], expected, ctx=ctx) + assert_collected_sources([root], expected, root=root) # If .gitignore with */* is nested root = Path(DATA_DIR / "ignore_subfolders_gitignore_tests") @@ -2344,17 +2359,13 @@ class TestFileCollection: root / "a.py", root / "subdir" / "b.py", ] - ctx = FakeContext() - ctx.obj["root"] = root - assert_collected_sources([root], expected, ctx=ctx) + assert_collected_sources([root], expected, root=root) # If command is executed from outer dir root = Path(DATA_DIR / "ignore_subfolders_gitignore_tests") target = root / "subdir" expected = [target / "b.py"] - ctx = FakeContext() - ctx.obj["root"] = root - assert_collected_sources([target], expected, ctx=ctx) + assert_collected_sources([target], expected, root=root) def test_empty_include(self) -> None: path = DATA_DIR / "include_exclude_tests" @@ -2387,38 +2398,48 @@ class TestFileCollection: ) @pytest.mark.incompatible_with_mypyc - def test_symlink_out_of_root_directory(self) -> None: + def test_symlinks(self) -> None: path = MagicMock() root = THIS_DIR.resolve() - child = MagicMock() include = re.compile(black.DEFAULT_INCLUDES) exclude = re.compile(black.DEFAULT_EXCLUDES) report = black.Report() gitignore = PathSpec.from_lines("gitwildmatch", []) - # `child` should behave like a symlink which resolved path is clearly - # outside of the `root` directory. - path.iterdir.return_value = [child] - child.resolve.return_value = Path("/a/b/c") - child.as_posix.return_value = "/a/b/c" - try: - list( - black.gen_python_files( - path.iterdir(), - root, - include, - exclude, - None, - None, - report, - {path: gitignore}, - verbose=False, - quiet=False, - ) + + regular = MagicMock() + outside_root_symlink = MagicMock() + ignored_symlink = MagicMock() + + path.iterdir.return_value = [regular, outside_root_symlink, ignored_symlink] + + regular.absolute.return_value = root / "regular.py" + regular.resolve.return_value = root / "regular.py" + regular.is_dir.return_value = False + + outside_root_symlink.absolute.return_value = root / "symlink.py" + outside_root_symlink.resolve.return_value = Path("/nowhere") + + ignored_symlink.absolute.return_value = root / ".mypy_cache" / "symlink.py" + + files = list( + black.gen_python_files( + path.iterdir(), + root, + include, + exclude, + None, + None, + report, + {path: gitignore}, + verbose=False, + quiet=False, ) - except ValueError as ve: - pytest.fail(f"`get_python_files_in_dir()` failed: {ve}") + ) + assert files == [regular] + path.iterdir.assert_called_once() - child.resolve.assert_called_once() + outside_root_symlink.resolve.assert_called_once() + ignored_symlink.resolve.assert_not_called() @patch("black.find_project_root", lambda *args: (THIS_DIR.resolve(), None)) def test_get_sources_with_stdin(self) -> None: @@ -2484,6 +2505,41 @@ class TestFileCollection: ) +class TestDeFactoAPI: + """Test that certain symbols that are commonly used externally keep working. + + We don't (yet) formally expose an API (see issue #779), but we should endeavor to + keep certain functions that external users commonly rely on working. + + """ + + def test_format_str(self) -> None: + # format_str and Mode should keep working + assert ( + black.format_str("print('hello')", mode=black.Mode()) == 'print("hello")\n' + ) + + # you can pass line length + assert ( + black.format_str("print('hello')", mode=black.Mode(line_length=42)) + == 'print("hello")\n' + ) + + # invalid input raises InvalidInput + with pytest.raises(black.InvalidInput): + black.format_str("syntax error", mode=black.Mode()) + + def test_format_file_contents(self) -> None: + # You probably should be using format_str() instead, but let's keep + # this one around since people do use it + assert ( + black.format_file_contents("x=1", fast=True, mode=black.Mode()) == "x = 1\n" + ) + + with pytest.raises(black.NothingChanged): + black.format_file_contents("x = 1\n", fast=True, mode=black.Mode()) + + try: with open(black.__file__, "r", encoding="utf-8") as _bf: black_source_lines = _bf.readlines()