X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/e9681a40dcb3d38b56b301d811bb1c55201fd97e..4da0851809e024760d3861ff43309125de34157a:/tests/test_black.py?ds=sidebyside diff --git a/tests/test_black.py b/tests/test_black.py index ce7bab2..5d0175d 100644 --- a/tests/test_black.py +++ b/tests/test_black.py @@ -6,6 +6,7 @@ import io import logging import multiprocessing import os +import re import sys import types import unittest @@ -31,7 +32,6 @@ from unittest.mock import MagicMock, patch import click import pytest -import re from click import unstyle from click.testing import CliRunner from pathspec import PathSpec @@ -59,7 +59,9 @@ from tests.util import ( dump_to_stderr, ff, fs, + get_case_path, read_data, + read_data_from_file, ) THIS_FILE = Path(__file__) @@ -157,7 +159,7 @@ class BlackTestCase(BlackBaseTestCase): ) def test_piping(self) -> None: - source, expected = read_data("src/black/__init__", data=False) + source, expected = read_data_from_file(PROJECT_ROOT / "src/black/__init__.py") result = BlackRunner().invoke( black.main, [ @@ -179,8 +181,8 @@ class BlackTestCase(BlackBaseTestCase): r"(STDIN|STDOUT)\t\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d\.\d\d\d\d\d\d " r"\+\d\d\d\d" ) - source, _ = read_data("expression.py") - expected, _ = read_data("expression.diff") + source, _ = read_data("simple_cases", "expression.py") + expected, _ = read_data("simple_cases", "expression.diff") args = [ "-", "--fast", @@ -197,7 +199,7 @@ class BlackTestCase(BlackBaseTestCase): self.assertEqual(expected, actual) def test_piping_diff_with_color(self) -> None: - source, _ = read_data("expression.py") + source, _ = read_data("simple_cases", "expression.py") args = [ "-", "--fast", @@ -219,7 +221,7 @@ class BlackTestCase(BlackBaseTestCase): @patch("black.dump_to_file", dump_to_stderr) def _test_wip(self) -> None: - source, expected = read_data("wip") + source, expected = read_data("miscellaneous", "wip") sys.settrace(tracefunc) mode = replace( DEFAULT_MODE, @@ -233,7 +235,7 @@ class BlackTestCase(BlackBaseTestCase): black.assert_stable(source, actual, black.FileMode()) def test_pep_572_version_detection(self) -> None: - source, _ = read_data("pep_572") + source, _ = read_data("py_38", "pep_572") root = black.lib2to3_parse(source) features = black.get_features_used(root) self.assertIn(black.Feature.ASSIGNMENT_EXPRESSIONS, features) @@ -241,7 +243,7 @@ class BlackTestCase(BlackBaseTestCase): self.assertIn(black.TargetVersion.PY38, versions) def test_expression_ff(self) -> None: - source, expected = read_data("expression") + source, expected = read_data("simple_cases", "expression.py") tmp_file = Path(black.dump_to_file(source)) try: self.assertTrue(ff(tmp_file, write_back=black.WriteBack.YES)) @@ -255,8 +257,8 @@ class BlackTestCase(BlackBaseTestCase): black.assert_stable(source, actual, DEFAULT_MODE) def test_expression_diff(self) -> None: - source, _ = read_data("expression.py") - expected, _ = read_data("expression.diff") + source, _ = read_data("simple_cases", "expression.py") + expected, _ = read_data("simple_cases", "expression.diff") tmp_file = Path(black.dump_to_file(source)) diff_header = re.compile( rf"{re.escape(str(tmp_file))}\t\d\d\d\d-\d\d-\d\d " @@ -281,8 +283,8 @@ class BlackTestCase(BlackBaseTestCase): self.assertEqual(expected, actual, msg) def test_expression_diff_with_color(self) -> None: - source, _ = read_data("expression.py") - expected, _ = read_data("expression.diff") + source, _ = read_data("simple_cases", "expression.py") + expected, _ = read_data("simple_cases", "expression.diff") tmp_file = Path(black.dump_to_file(source)) try: result = BlackRunner().invoke( @@ -301,16 +303,36 @@ class BlackTestCase(BlackBaseTestCase): self.assertIn("\033[0m", actual) def test_detect_pos_only_arguments(self) -> None: - source, _ = read_data("pep_570") + source, _ = read_data("py_38", "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) + def test_detect_debug_f_strings(self) -> None: + root = black.lib2to3_parse("""f"{x=}" """) + features = black.get_features_used(root) + self.assertIn(black.Feature.DEBUG_F_STRINGS, features) + versions = black.detect_target_versions(root) + self.assertIn(black.TargetVersion.PY38, versions) + + root = black.lib2to3_parse( + """f"{x}"\nf'{"="}'\nf'{(x:=5)}'\nf'{f(a="3=")}'\nf'{x:=10}'\n""" + ) + features = black.get_features_used(root) + self.assertNotIn(black.Feature.DEBUG_F_STRINGS, features) + + # We don't yet support feature version detection in nested f-strings + root = black.lib2to3_parse( + """f"heard a rumour that { f'{1+1=}' } ... seems like it could be true" """ + ) + features = black.get_features_used(root) + self.assertNotIn(black.Feature.DEBUG_F_STRINGS, features) + @patch("black.dump_to_file", dump_to_stderr) def test_string_quotes(self) -> None: - source, expected = read_data("string_quotes") + source, expected = read_data("miscellaneous", "string_quotes") mode = black.Mode(preview=True) assert_format(source, expected, mode) mode = replace(mode, string_normalization=False) @@ -319,9 +341,35 @@ class BlackTestCase(BlackBaseTestCase): black.assert_equivalent(source, not_normalized) black.assert_stable(source, not_normalized, mode=mode) + def test_skip_source_first_line(self) -> None: + source, _ = read_data("miscellaneous", "invalid_header") + tmp_file = Path(black.dump_to_file(source)) + # Full source should fail (invalid syntax at header) + self.invokeBlack([str(tmp_file), "--diff", "--check"], exit_code=123) + # So, skipping the first line should work + result = BlackRunner().invoke( + black.main, [str(tmp_file), "-x", f"--config={EMPTY_CONFIG}"] + ) + self.assertEqual(result.exit_code, 0) + with open(tmp_file, encoding="utf8") as f: + actual = f.read() + self.assertFormatEqual(source, actual) + + def test_skip_source_first_line_when_mixing_newlines(self) -> None: + code_mixing_newlines = b"Header will be skipped\r\ni = [1,2,3]\nj = [1,2,3]\n" + expected = b"Header will be skipped\r\ni = [1, 2, 3]\nj = [1, 2, 3]\n" + with TemporaryDirectory() as workspace: + test_file = Path(workspace) / "skip_header.py" + test_file.write_bytes(code_mixing_newlines) + mode = replace(DEFAULT_MODE, skip_source_first_line=True) + ff(test_file, mode=mode, write_back=black.WriteBack.YES) + self.assertEqual(test_file.read_bytes(), expected) + def test_skip_magic_trailing_comma(self) -> None: - source, _ = read_data("expression.py") - expected, _ = read_data("expression_skip_magic_trailing_comma.diff") + source, _ = read_data("simple_cases", "expression") + expected, _ = read_data( + "miscellaneous", "expression_skip_magic_trailing_comma.diff" + ) tmp_file = Path(black.dump_to_file(source)) diff_header = re.compile( rf"{re.escape(str(tmp_file))}\t\d\d\d\d-\d\d-\d\d " @@ -348,8 +396,8 @@ class BlackTestCase(BlackBaseTestCase): @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") + source_path = get_case_path("miscellaneous", "async_as_identifier") + source, expected = read_data_from_file(source_path) actual = fs(source) self.assertFormatEqual(expected, actual) major, minor = sys.version_info[:2] @@ -363,8 +411,8 @@ class BlackTestCase(BlackBaseTestCase): @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") + source_path = get_case_path("py_37", "python37") + source, expected = read_data_from_file(source_path) actual = fs(source) self.assertFormatEqual(expected, actual) major, minor = sys.version_info[:2] @@ -489,15 +537,15 @@ class BlackTestCase(BlackBaseTestCase): report.check = True self.assertEqual( unstyle(str(report)), - "2 files would be reformatted, 3 files would be left unchanged, 2 files" - " would fail to reformat.", + "2 files would be reformatted, 3 files would be left unchanged, 2" + " files would fail to reformat.", ) report.check = False report.diff = True self.assertEqual( unstyle(str(report)), - "2 files would be reformatted, 3 files would be left unchanged, 2 files" - " would fail to reformat.", + "2 files would be reformatted, 3 files would be left unchanged, 2" + " files would fail to reformat.", ) def test_report_quiet(self) -> None: @@ -583,15 +631,15 @@ class BlackTestCase(BlackBaseTestCase): report.check = True self.assertEqual( unstyle(str(report)), - "2 files would be reformatted, 3 files would be left unchanged, 2 files" - " would fail to reformat.", + "2 files would be reformatted, 3 files would be left unchanged, 2" + " files would fail to reformat.", ) report.check = False report.diff = True self.assertEqual( unstyle(str(report)), - "2 files would be reformatted, 3 files would be left unchanged, 2 files" - " would fail to reformat.", + "2 files would be reformatted, 3 files would be left unchanged, 2" + " files would fail to reformat.", ) def test_report_normal(self) -> None: @@ -680,15 +728,15 @@ class BlackTestCase(BlackBaseTestCase): report.check = True self.assertEqual( unstyle(str(report)), - "2 files would be reformatted, 3 files would be left unchanged, 2 files" - " would fail to reformat.", + "2 files would be reformatted, 3 files would be left unchanged, 2" + " files would fail to reformat.", ) report.check = False report.diff = True self.assertEqual( unstyle(str(report)), - "2 files would be reformatted, 3 files would be left unchanged, 2 files" - " would fail to reformat.", + "2 files would be reformatted, 3 files would be left unchanged, 2" + " files would fail to reformat.", ) def test_lib2to3_parse(self) -> None: @@ -712,7 +760,7 @@ class BlackTestCase(BlackBaseTestCase): # since this makes some test cases of test_get_features_used() # fails if it fails, this is tested first so that a useful case # is identified - simples, relaxed = read_data("decorators") + simples, relaxed = read_data("miscellaneous", "decorators") # skip explanation comments at the top of the file for simple_test in simples.split("##")[1:]: node = black.lib2to3_parse(simple_test) @@ -755,7 +803,7 @@ class BlackTestCase(BlackBaseTestCase): self.assertEqual(black.get_features_used(node), {Feature.NUMERIC_UNDERSCORES}) node = black.lib2to3_parse("123456\n") self.assertEqual(black.get_features_used(node), set()) - source, expected = read_data("function") + source, expected = read_data("simple_cases", "function") node = black.lib2to3_parse(source) expected_features = { Feature.TRAILING_COMMA_IN_CALL, @@ -765,7 +813,7 @@ class BlackTestCase(BlackBaseTestCase): self.assertEqual(black.get_features_used(node), expected_features) node = black.lib2to3_parse(expected) self.assertEqual(black.get_features_used(node), expected_features) - source, expected = read_data("expression") + source, expected = read_data("simple_cases", "expression") node = black.lib2to3_parse(source) self.assertEqual(black.get_features_used(node), set()) node = black.lib2to3_parse(expected) @@ -794,6 +842,18 @@ class BlackTestCase(BlackBaseTestCase): self.assertEqual( black.get_features_used(node), {Feature.ANN_ASSIGN_EXTENDED_RHS} ) + node = black.lib2to3_parse("try: pass\nexcept Something: pass") + self.assertEqual(black.get_features_used(node), set()) + node = black.lib2to3_parse("try: pass\nexcept (*Something,): pass") + self.assertEqual(black.get_features_used(node), set()) + node = black.lib2to3_parse("try: pass\nexcept *Group: pass") + self.assertEqual(black.get_features_used(node), {Feature.EXCEPT_STAR}) + node = black.lib2to3_parse("a[*b]") + self.assertEqual(black.get_features_used(node), {Feature.VARIADIC_GENERICS}) + node = black.lib2to3_parse("a[x, *y(), z] = t") + self.assertEqual(black.get_features_used(node), {Feature.VARIADIC_GENERICS}) + node = black.lib2to3_parse("def fn(*args: *T): pass") + self.assertEqual(black.get_features_used(node), {Feature.VARIADIC_GENERICS}) def test_get_features_used_for_future_flags(self) -> None: for src, features in [ @@ -845,8 +905,8 @@ class BlackTestCase(BlackBaseTestCase): @pytest.mark.incompatible_with_mypyc def test_debug_visitor(self) -> None: - source, _ = read_data("debug_visitor.py") - expected, _ = read_data("debug_visitor.out") + source, _ = read_data("miscellaneous", "debug_visitor") + expected, _ = read_data("miscellaneous", "debug_visitor.out") out_lines = [] err_lines = [] @@ -916,7 +976,7 @@ class BlackTestCase(BlackBaseTestCase): self.assertEqual("".join(err_lines), "") @event_loop() - @patch("black.ProcessPoolExecutor", MagicMock(side_effect=OSError)) + @patch("concurrent.futures.ProcessPoolExecutor", MagicMock(side_effect=OSError)) def test_works_in_mono_process_only_environment(self) -> None: with cache_dir() as workspace: for f in [ @@ -930,10 +990,10 @@ class BlackTestCase(BlackBaseTestCase): def test_check_diff_use_together(self) -> None: with cache_dir(): # Files which will be reformatted. - src1 = (THIS_DIR / "data" / "string_quotes.py").resolve() + src1 = get_case_path("miscellaneous", "string_quotes") self.invokeBlack([str(src1), "--diff", "--check"], exit_code=1) # Files which will not be reformatted. - src2 = (THIS_DIR / "data" / "composition.py").resolve() + src2 = get_case_path("simple_cases", "composition") self.invokeBlack([str(src2), "--diff", "--check"]) # Multi file command. self.invokeBlack([str(src1), str(src2), "--diff", "--check"], exit_code=1) @@ -957,7 +1017,7 @@ class BlackTestCase(BlackBaseTestCase): def test_single_file_force_pyi(self) -> None: pyi_mode = replace(DEFAULT_MODE, is_pyi=True) - contents, expected = read_data("force_pyi") + contents, expected = read_data("miscellaneous", "force_pyi") with cache_dir() as workspace: path = (workspace / "file.py").resolve() with open(path, "w") as fh: @@ -978,7 +1038,7 @@ class BlackTestCase(BlackBaseTestCase): def test_multi_file_force_pyi(self) -> None: reg_mode = DEFAULT_MODE pyi_mode = replace(DEFAULT_MODE, is_pyi=True) - contents, expected = read_data("force_pyi") + contents, expected = read_data("miscellaneous", "force_pyi") with cache_dir() as workspace: paths = [ (workspace / "file1.py").resolve(), @@ -1000,7 +1060,7 @@ class BlackTestCase(BlackBaseTestCase): self.assertNotIn(str(path), normal_cache) def test_pipe_force_pyi(self) -> None: - source, expected = read_data("force_pyi") + source, expected = read_data("miscellaneous", "force_pyi") result = CliRunner().invoke( black.main, ["-", "-q", "--pyi"], input=BytesIO(source.encode("utf8")) ) @@ -1011,7 +1071,7 @@ class BlackTestCase(BlackBaseTestCase): def test_single_file_force_py36(self) -> None: reg_mode = DEFAULT_MODE py36_mode = replace(DEFAULT_MODE, target_versions=PY36_VERSIONS) - source, expected = read_data("force_py36") + source, expected = read_data("miscellaneous", "force_py36") with cache_dir() as workspace: path = (workspace / "file.py").resolve() with open(path, "w") as fh: @@ -1030,7 +1090,7 @@ class BlackTestCase(BlackBaseTestCase): def test_multi_file_force_py36(self) -> None: reg_mode = DEFAULT_MODE py36_mode = replace(DEFAULT_MODE, target_versions=PY36_VERSIONS) - source, expected = read_data("force_py36") + source, expected = read_data("miscellaneous", "force_py36") with cache_dir() as workspace: paths = [ (workspace / "file1.py").resolve(), @@ -1052,7 +1112,7 @@ class BlackTestCase(BlackBaseTestCase): self.assertNotIn(str(path), normal_cache) def test_pipe_force_py36(self) -> None: - source, expected = read_data("force_py36") + source, expected = read_data("miscellaneous", "force_py36") result = CliRunner().invoke( black.main, ["-", "-q", "--target-version=py36"], @@ -1162,7 +1222,7 @@ class BlackTestCase(BlackBaseTestCase): report = MagicMock() # Even with an existing file, since we are forcing stdin, black # should output to stdout and not modify the file inplace - p = Path(str(THIS_DIR / "data/collections.py")) + p = THIS_DIR / "data" / "simple_cases" / "collections.py" # Make sure is_file actually returns True self.assertTrue(p.is_file()) path = Path(f"__BLACK_STDIN_FILENAME__{p}") @@ -1250,29 +1310,42 @@ class BlackTestCase(BlackBaseTestCase): if nl == "\n": self.assertNotIn(b"\r\n", output) + def test_normalize_line_endings(self) -> None: + with TemporaryDirectory() as workspace: + test_file = Path(workspace) / "test.py" + for data, expected in ( + (b"c\r\nc\n ", b"c\r\nc\r\n"), + (b"l\nl\r\n ", b"l\nl\n"), + ): + test_file.write_bytes(data) + ff(test_file, write_back=black.WriteBack.YES) + self.assertEqual(test_file.read_bytes(), expected) + def test_assert_equivalent_different_asts(self) -> None: with self.assertRaises(AssertionError): black.assert_equivalent("{}", "None") def test_shhh_click(self) -> None: try: - from click import _unicodefun + from click import _unicodefun # type: ignore except ImportError: self.skipTest("Incompatible Click version") - if not hasattr(_unicodefun, "_verify_python3_env"): + + if not hasattr(_unicodefun, "_verify_python_env"): self.skipTest("Incompatible Click version") + # First, let's see if Click is crashing with a preferred ASCII charset. with patch("locale.getpreferredencoding") as gpe: gpe.return_value = "ASCII" with self.assertRaises(RuntimeError): - _unicodefun._verify_python3_env() # type: ignore + _unicodefun._verify_python_env() # Now, let's silence Click... black.patch_click() # ...and confirm it's silent. with patch("locale.getpreferredencoding") as gpe: gpe.return_value = "ASCII" try: - _unicodefun._verify_python3_env() # type: ignore + _unicodefun._verify_python_env() except RuntimeError as re: self.fail(f"`patch_click()` failed, exception still raised: {re}") @@ -1358,6 +1431,12 @@ class BlackTestCase(BlackBaseTestCase): (src_dir.resolve(), "pyproject.toml"), ) + with change_directory(test_dir): + self.assertEqual( + black.find_project_root(("-",), stdin_filename="../src/a.py"), + (src_dir.resolve(), "pyproject.toml"), + ) + @patch( "black.files.find_user_pyproject_toml", ) @@ -1443,13 +1522,12 @@ class BlackTestCase(BlackBaseTestCase): black.assert_stable(source, output, mode=DEFAULT_MODE) def test_bpo_2142_workaround(self) -> None: - # https://bugs.python.org/issue2142 - source, _ = read_data("missing_final_newline.py") + source, _ = read_data("miscellaneous", "missing_final_newline") # read_data adds a trailing newline source = source.rstrip() - expected, _ = read_data("missing_final_newline.diff") + expected, _ = read_data("miscellaneous", "missing_final_newline.diff") tmp_file = Path(black.dump_to_file(source, ensure_final_newline=False)) diff_header = re.compile( rf"{re.escape(str(tmp_file))}\t\d\d\d\d-\d\d-\d\d " @@ -1675,7 +1753,7 @@ class TestCaching: def test_cache_multiple_files(self) -> None: mode = DEFAULT_MODE with cache_dir() as workspace, patch( - "black.ProcessPoolExecutor", new=ThreadPoolExecutor + "concurrent.futures.ProcessPoolExecutor", new=ThreadPoolExecutor ): one = (workspace / "one.py").resolve() with one.open("w") as fobj: @@ -1720,7 +1798,9 @@ class TestCaching: src = (workspace / f"test{tag}.py").resolve() with src.open("w") as fobj: fobj.write("print('hello')") - with patch("black.Manager", wraps=multiprocessing.Manager) as mgr: + with patch( + "black.concurrency.Manager", wraps=multiprocessing.Manager + ) as mgr: cmd = ["--diff", str(workspace)] if color: cmd.append("--color") @@ -1767,7 +1847,7 @@ class TestCaching: str(cached): black.get_cache_info(cached), str(cached_but_changed): (0.0, 0), } - todo, done = black.filter_cached( + todo, done = black.cache.filter_cached( cache, {uncached, cached, cached_but_changed} ) assert todo == {uncached, cached_but_changed} @@ -1784,7 +1864,7 @@ class TestCaching: def test_failed_formatting_does_not_get_cached(self) -> None: mode = DEFAULT_MODE with cache_dir() as workspace, patch( - "black.ProcessPoolExecutor", new=ThreadPoolExecutor + "concurrent.futures.ProcessPoolExecutor", new=ThreadPoolExecutor ): failing = (workspace / "failing.py").resolve() with failing.open("w") as fobj: @@ -1945,6 +2025,13 @@ class TestFileCollection: ) assert sorted(expected) == sorted(sources) + def test_nested_gitignore_directly_in_source_directory(self) -> None: + # https://github.com/psf/black/issues/2598 + path = Path(DATA_DIR / "nested_gitignore_tests") + src = Path(path / "root" / "child") + expected = [src / "a.py", src / "c.py"] + assert_collected_sources([src], expected) + def test_invalid_gitignore(self) -> None: path = THIS_DIR / "data" / "invalid_gitignore_tests" empty_config = path / "pyproject.toml"