X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/9f096d55365cb63548eef97e254c2793ae2776a0..07b1b2f3dd0e4f13dd5df96eb9188f3d02f5726e:/tests/test_black.py diff --git a/tests/test_black.py b/tests/test_black.py index 02926d1..a7d04cc 100644 --- a/tests/test_black.py +++ b/tests/test_black.py @@ -31,7 +31,7 @@ def dump_to_stderr(*output: str) -> str: def read_data(name: str) -> Tuple[str, str]: """read_data('test_name') -> 'input', 'output'""" - if not name.endswith((".py", ".out", ".diff")): + if not name.endswith((".py", ".pyi", ".out", ".diff")): name += ".py" _input: List[str] = [] _output: List[str] = [] @@ -167,6 +167,14 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, line_length=ll) + @patch("black.dump_to_file", dump_to_stderr) + def test_function2(self) -> None: + source, expected = read_data("function2") + actual = fs(source) + self.assertFormatEqual(expected, actual) + black.assert_equivalent(source, actual) + black.assert_stable(source, actual, line_length=ll) + @patch("black.dump_to_file", dump_to_stderr) def test_expression(self) -> None: source, expected = read_data("expression") @@ -309,6 +317,14 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, line_length=ll) + @patch("black.dump_to_file", dump_to_stderr) + def test_string_prefixes(self) -> None: + source, expected = read_data("string_prefixes") + actual = fs(source) + self.assertFormatEqual(expected, actual) + black.assert_equivalent(source, actual) + black.assert_stable(source, actual, line_length=ll) + @patch("black.dump_to_file", dump_to_stderr) def test_python2(self) -> None: source, expected = read_data("python2") @@ -317,6 +333,20 @@ class BlackTestCase(unittest.TestCase): # black.assert_equivalent(source, actual) black.assert_stable(source, actual, line_length=ll) + @patch("black.dump_to_file", dump_to_stderr) + def test_python2_unicode_literals(self) -> None: + source, expected = read_data("python2_unicode_literals") + actual = fs(source) + self.assertFormatEqual(expected, actual) + black.assert_stable(source, actual, line_length=ll) + + @patch("black.dump_to_file", dump_to_stderr) + def test_stub(self) -> None: + source, expected = read_data("stub.pyi") + actual = fs(source, is_pyi=True) + self.assertFormatEqual(expected, actual) + black.assert_stable(source, actual, line_length=ll, is_pyi=True) + @patch("black.dump_to_file", dump_to_stderr) def test_fmtonoff(self) -> None: source, expected = read_data("fmtonoff") @@ -325,6 +355,14 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, line_length=ll) + @patch("black.dump_to_file", dump_to_stderr) + def test_remove_empty_parentheses_after_class(self) -> None: + source, expected = read_data("class_blank_parentheses") + actual = fs(source) + self.assertFormatEqual(expected, actual) + black.assert_equivalent(source, actual) + black.assert_stable(source, actual, line_length=ll) + def test_report(self) -> None: report = black.Report() out_lines = [] @@ -428,6 +466,28 @@ class BlackTestCase(unittest.TestCase): node = black.lib2to3_parse(expected) self.assertFalse(black.is_python36(node)) + def test_get_future_imports(self) -> None: + node = black.lib2to3_parse("\n") + self.assertEqual(set(), black.get_future_imports(node)) + node = black.lib2to3_parse("from __future__ import black\n") + self.assertEqual({"black"}, black.get_future_imports(node)) + node = black.lib2to3_parse("from __future__ import multiple, imports\n") + self.assertEqual({"multiple", "imports"}, black.get_future_imports(node)) + node = black.lib2to3_parse("from __future__ import (parenthesized, imports)\n") + self.assertEqual({"parenthesized", "imports"}, black.get_future_imports(node)) + node = black.lib2to3_parse( + "from __future__ import multiple\nfrom __future__ import imports\n" + ) + self.assertEqual({"multiple", "imports"}, black.get_future_imports(node)) + node = black.lib2to3_parse("# comment\nfrom __future__ import black\n") + self.assertEqual({"black"}, black.get_future_imports(node)) + node = black.lib2to3_parse('"""docstring"""\nfrom __future__ import black\n') + self.assertEqual({"black"}, black.get_future_imports(node)) + node = black.lib2to3_parse("some(other, code)\nfrom __future__ import black\n") + self.assertEqual(set(), black.get_future_imports(node)) + node = black.lib2to3_parse("from some.module import black\n") + self.assertEqual(set(), black.get_future_imports(node)) + def test_debug_visitor(self) -> None: source, _ = read_data("debug_visitor.py") expected, _ = read_data("debug_visitor.out") @@ -618,6 +678,7 @@ class BlackTestCase(unittest.TestCase): mock.side_effect = OSError black.write_cache({}, [], black.DEFAULT_LINE_LENGTH) + @event_loop(close=False) def test_check_diff_use_together(self) -> None: with cache_dir(): # Files which will be reformatted. @@ -634,7 +695,20 @@ class BlackTestCase(unittest.TestCase): result = CliRunner().invoke( black.main, [str(src1), str(src2), "--diff", "--check"] ) - self.assertEqual(result.exit_code, 1) + self.assertEqual(result.exit_code, 1, result.output) + + def test_no_files(self) -> None: + with cache_dir(): + # Without an argument, black exits with error code 0. + result = CliRunner().invoke(black.main, []) + self.assertEqual(result.exit_code, 0) + + def test_broken_symlink(self) -> None: + with cache_dir() as workspace: + symlink = workspace / "broken_link.py" + symlink.symlink_to("nonexistent.py") + result = CliRunner().invoke(black.main, [str(workspace.resolve())]) + self.assertEqual(result.exit_code, 0) def test_read_cache_line_lengths(self) -> None: with cache_dir() as workspace: @@ -646,6 +720,104 @@ class BlackTestCase(unittest.TestCase): two = black.read_cache(2) self.assertNotIn(path, two) + def test_single_file_force_pyi(self) -> None: + contents, expected = read_data("force_pyi") + with cache_dir() as workspace: + path = (workspace / "file.py").resolve() + with open(path, "w") as fh: + fh.write(contents) + result = CliRunner().invoke(black.main, [str(path), "--pyi"]) + self.assertEqual(result.exit_code, 0) + with open(path, "r") as fh: + actual = fh.read() + # verify cache with --pyi is separate + pyi_cache = black.read_cache(black.DEFAULT_LINE_LENGTH, pyi=True) + self.assertIn(path, pyi_cache) + normal_cache = black.read_cache(black.DEFAULT_LINE_LENGTH) + self.assertNotIn(path, normal_cache) + self.assertEqual(actual, expected) + + @event_loop(close=False) + def test_multi_file_force_pyi(self) -> None: + contents, expected = read_data("force_pyi") + with cache_dir() as workspace: + paths = [ + (workspace / "file1.py").resolve(), + (workspace / "file2.py").resolve(), + ] + for path in paths: + with open(path, "w") as fh: + fh.write(contents) + result = CliRunner().invoke(black.main, [str(p) for p in paths] + ["--pyi"]) + self.assertEqual(result.exit_code, 0) + for path in paths: + with open(path, "r") as fh: + actual = fh.read() + self.assertEqual(actual, expected) + # verify cache with --pyi is separate + pyi_cache = black.read_cache(black.DEFAULT_LINE_LENGTH, pyi=True) + normal_cache = black.read_cache(black.DEFAULT_LINE_LENGTH) + for path in paths: + self.assertIn(path, pyi_cache) + self.assertNotIn(path, normal_cache) + + def test_pipe_force_pyi(self) -> None: + source, expected = read_data("force_pyi") + result = CliRunner().invoke(black.main, ["-", "-q", "--pyi"], input=source) + self.assertEqual(result.exit_code, 0) + actual = result.output + self.assertFormatEqual(actual, expected) + + def test_single_file_force_py36(self) -> None: + source, expected = read_data("force_py36") + with cache_dir() as workspace: + path = (workspace / "file.py").resolve() + with open(path, "w") as fh: + fh.write(source) + result = CliRunner().invoke(black.main, [str(path), "--py36"]) + self.assertEqual(result.exit_code, 0) + with open(path, "r") as fh: + actual = fh.read() + # verify cache with --py36 is separate + py36_cache = black.read_cache(black.DEFAULT_LINE_LENGTH, py36=True) + self.assertIn(path, py36_cache) + normal_cache = black.read_cache(black.DEFAULT_LINE_LENGTH) + self.assertNotIn(path, normal_cache) + self.assertEqual(actual, expected) + + @event_loop(close=False) + def test_multi_file_force_py36(self) -> None: + source, expected = read_data("force_py36") + with cache_dir() as workspace: + paths = [ + (workspace / "file1.py").resolve(), + (workspace / "file2.py").resolve(), + ] + for path in paths: + with open(path, "w") as fh: + fh.write(source) + result = CliRunner().invoke( + black.main, [str(p) for p in paths] + ["--py36"] + ) + self.assertEqual(result.exit_code, 0) + for path in paths: + with open(path, "r") as fh: + actual = fh.read() + self.assertEqual(actual, expected) + # verify cache with --py36 is separate + pyi_cache = black.read_cache(black.DEFAULT_LINE_LENGTH, py36=True) + normal_cache = black.read_cache(black.DEFAULT_LINE_LENGTH) + for path in paths: + self.assertIn(path, pyi_cache) + self.assertNotIn(path, normal_cache) + + def test_pipe_force_py36(self) -> None: + source, expected = read_data("force_py36") + result = CliRunner().invoke(black.main, ["-", "-q", "--py36"], input=source) + self.assertEqual(result.exit_code, 0) + actual = result.output + self.assertFormatEqual(actual, expected) + if __name__ == "__main__": unittest.main()