X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/6dddbd72414061cde9dd8ee72eac373b7fcf8b54..4b7b5ed5b8630a906e2ef3a405134131651a251e:/tests/test_black.py diff --git a/tests/test_black.py b/tests/test_black.py index e17f43b..7d855ca 100644 --- a/tests/test_black.py +++ b/tests/test_black.py @@ -5,7 +5,6 @@ import logging from concurrent.futures import ThreadPoolExecutor from contextlib import contextmanager from dataclasses import replace -from functools import partial import inspect from io import BytesIO, TextIOWrapper import os @@ -22,10 +21,10 @@ from typing import ( Dict, Generator, List, - Tuple, Iterator, TypeVar, ) +import pytest import unittest from unittest.mock import patch, MagicMock @@ -36,29 +35,23 @@ from click.testing import CliRunner import black from black import Feature, TargetVersion -try: - import blackd - from aiohttp.test_utils import AioHTTPTestCase, unittest_run_loop - from aiohttp import web -except ImportError: - has_blackd_deps = False -else: - has_blackd_deps = True - from pathspec import PathSpec # Import other test classes +from tests.util import ( + THIS_DIR, + read_data, + DETERMINISTIC_HEADER, + BlackBaseTestCase, + DEFAULT_MODE, + fs, + ff, + dump_to_stderr, +) from .test_primer import PrimerCLITests # noqa: F401 -DEFAULT_MODE = black.FileMode(experimental_string_processing=True) -ff = partial(black.format_file_in_place, mode=DEFAULT_MODE, fast=True) -fs = partial(black.format_str, mode=DEFAULT_MODE) THIS_FILE = Path(__file__) -THIS_DIR = THIS_FILE.parent -PROJECT_ROOT = THIS_DIR.parent -DETERMINISTIC_HEADER = "[Deterministic header]" -EMPTY_LINE = "# EMPTY LINE WITH WHITESPACE" + " (this comment will be removed)" PY36_VERSIONS = { TargetVersion.PY36, TargetVersion.PY37, @@ -70,33 +63,6 @@ T = TypeVar("T") R = TypeVar("R") -def dump_to_stderr(*output: str) -> str: - return "\n" + "\n".join(output) + "\n" - - -def read_data(name: str, data: bool = True) -> Tuple[str, str]: - """read_data('test_name') -> 'input', 'output'""" - if not name.endswith((".py", ".pyi", ".out", ".diff")): - name += ".py" - _input: List[str] = [] - _output: List[str] = [] - base_dir = THIS_DIR / "data" if data else PROJECT_ROOT - with open(base_dir / name, "r", encoding="utf8") as test: - lines = test.readlines() - result = _input - for line in lines: - line = line.replace(EMPTY_LINE, "") - if line.rstrip() == "# output": - result = _output - continue - - result.append(line) - if _input and not _output: - # If there's no output marker, treat the entire file as already pre-formatted. - _output = _input[:] - return "".join(_input).strip() + "\n", "".join(_output).strip() + "\n" - - @contextmanager def cache_dir(exists: bool = True) -> Iterator[Path]: with TemporaryDirectory() as workspace: @@ -119,17 +85,6 @@ def event_loop() -> Iterator[None]: loop.close() -@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") - else: - raise - - class FakeContext(click.Context): """A fake click Context for when calling functions that need it.""" @@ -169,29 +124,7 @@ class BlackRunner(CliRunner): sys.stderr = hold_stderr -class BlackTestCase(unittest.TestCase): - maxDiff = None - _diffThreshold = 2 ** 20 - - def assertFormatEqual(self, expected: str, actual: str) -> None: - if actual != expected and not os.environ.get("SKIP_AST_PRINT"): - bdv: black.DebugVisitor[Any] - black.out("Expected tree:", fg="green") - try: - exp_node = black.lib2to3_parse(expected) - bdv = black.DebugVisitor() - list(bdv.visit(exp_node)) - except Exception as ve: - black.err(str(ve)) - black.out("Actual tree:", fg="red") - try: - exp_node = black.lib2to3_parse(actual) - bdv = black.DebugVisitor() - list(bdv.visit(exp_node)) - except Exception as ve: - black.err(str(ve)) - self.assertMultiLineEqual(expected, actual) - +class BlackTestCase(BlackBaseTestCase): def invokeBlack( self, args: List[str], exit_code: int = 0, ignore_config: bool = True ) -> None: @@ -210,16 +143,6 @@ class BlackTestCase(unittest.TestCase): ), ) - @patch("black.dump_to_file", dump_to_stderr) - def checkSourceFile(self, name: str, mode: black.FileMode = DEFAULT_MODE) -> None: - path = THIS_DIR.parent / name - source, expected = read_data(str(path), data=False) - actual = fs(source, mode=mode) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, mode) - self.assertFalse(ff(path)) - @patch("black.dump_to_file", dump_to_stderr) def test_empty(self) -> None: source = expected = "" @@ -239,45 +162,6 @@ class BlackTestCase(unittest.TestCase): os.unlink(tmp_file) self.assertFormatEqual(expected, actual) - def test_self(self) -> None: - self.checkSourceFile("tests/test_black.py") - - def test_black(self) -> None: - self.checkSourceFile("src/black/__init__.py") - - def test_pygram(self) -> None: - self.checkSourceFile("src/blib2to3/pygram.py") - - def test_pytree(self) -> None: - self.checkSourceFile("src/blib2to3/pytree.py") - - def test_conv(self) -> None: - self.checkSourceFile("src/blib2to3/pgen2/conv.py") - - def test_driver(self) -> None: - self.checkSourceFile("src/blib2to3/pgen2/driver.py") - - def test_grammar(self) -> None: - self.checkSourceFile("src/blib2to3/pgen2/grammar.py") - - def test_literals(self) -> None: - self.checkSourceFile("src/blib2to3/pgen2/literals.py") - - def test_parse(self) -> None: - self.checkSourceFile("src/blib2to3/pgen2/parse.py") - - def test_pgen(self) -> None: - self.checkSourceFile("src/blib2to3/pgen2/pgen.py") - - def test_tokenize(self) -> None: - self.checkSourceFile("src/blib2to3/pgen2/tokenize.py") - - def test_token(self) -> None: - self.checkSourceFile("src/blib2to3/pgen2/token.py") - - def test_setup(self) -> None: - self.checkSourceFile("setup.py") - def test_piping(self) -> None: source, expected = read_data("src/black/__init__", data=False) result = BlackRunner().invoke( @@ -335,22 +219,6 @@ class BlackTestCase(unittest.TestCase): self.assertIn("\033[31m", actual) self.assertIn("\033[0m", actual) - @patch("black.dump_to_file", dump_to_stderr) - def test_function(self) -> None: - source, expected = read_data("function") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @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, DEFAULT_MODE) - @patch("black.dump_to_file", dump_to_stderr) def _test_wip(self) -> None: source, expected = read_data("wip") @@ -366,14 +234,6 @@ 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, DEFAULT_MODE) - @unittest.expectedFailure @patch("black.dump_to_file", dump_to_stderr) def test_trailing_comma_optional_parens_stability1(self) -> None: @@ -396,11 +256,21 @@ class BlackTestCase(unittest.TestCase): black.assert_stable(source, actual, DEFAULT_MODE) @patch("black.dump_to_file", dump_to_stderr) - def test_expression(self) -> None: - source, expected = read_data("expression") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) + def test_trailing_comma_optional_parens_stability1_pass2(self) -> None: + source, _expected = read_data("trailing_comma_optional_parens1") + actual = fs(fs(source)) # this is what `format_file_contents` does with --safe + black.assert_stable(source, actual, DEFAULT_MODE) + + @patch("black.dump_to_file", dump_to_stderr) + def test_trailing_comma_optional_parens_stability2_pass2(self) -> None: + source, _expected = read_data("trailing_comma_optional_parens2") + actual = fs(fs(source)) # this is what `format_file_contents` does with --safe + black.assert_stable(source, actual, DEFAULT_MODE) + + @patch("black.dump_to_file", dump_to_stderr) + def test_trailing_comma_optional_parens_stability3_pass2(self) -> None: + source, _expected = read_data("trailing_comma_optional_parens3") + actual = fs(fs(source)) # this is what `format_file_contents` does with --safe black.assert_stable(source, actual, DEFAULT_MODE) @patch("black.dump_to_file", dump_to_stderr) @@ -412,6 +282,23 @@ class BlackTestCase(unittest.TestCase): if sys.version_info >= (3, 8): black.assert_equivalent(source, actual) + @patch("black.dump_to_file", dump_to_stderr) + def test_pep_572_remove_parens(self) -> None: + source, expected = read_data("pep_572_remove_parens") + actual = fs(source) + self.assertFormatEqual(expected, actual) + black.assert_stable(source, actual, DEFAULT_MODE) + if sys.version_info >= (3, 8): + black.assert_equivalent(source, actual) + + @patch("black.dump_to_file", dump_to_stderr) + def test_pep_572_do_not_remove_parens(self) -> None: + source, expected = read_data("pep_572_do_not_remove_parens") + # the AST safety checks will fail, but that's expected, just make sure no + # parentheses are touched + actual = black.format_str(source, mode=DEFAULT_MODE) + self.assertFormatEqual(expected, actual) + def test_pep_572_version_detection(self) -> None: source, _ = read_data("pep_572") root = black.lib2to3_parse(source) @@ -436,6 +323,7 @@ class BlackTestCase(unittest.TestCase): def test_expression_diff(self) -> None: source, _ = read_data("expression.py") + config = THIS_DIR / "data" / "empty_pyproject.toml" expected, _ = read_data("expression.diff") tmp_file = Path(black.dump_to_file(source)) diff_header = re.compile( @@ -443,13 +331,14 @@ class BlackTestCase(unittest.TestCase): r"\d\d:\d\d:\d\d\.\d\d\d\d\d\d \+\d\d\d\d" ) try: - result = BlackRunner().invoke(black.main, ["--diff", str(tmp_file)]) + result = BlackRunner().invoke( + black.main, ["--diff", str(tmp_file), f"--config={config}"] + ) self.assertEqual(result.exit_code, 0) finally: os.unlink(tmp_file) actual = result.output actual = diff_header.sub(DETERMINISTIC_HEADER, actual) - actual = actual.rstrip() + "\n" # the diff output has a trailing space if expected != actual: dump = black.dump_to_file(actual) msg = ( @@ -461,11 +350,12 @@ class BlackTestCase(unittest.TestCase): def test_expression_diff_with_color(self) -> None: source, _ = read_data("expression.py") + config = THIS_DIR / "data" / "empty_pyproject.toml" expected, _ = read_data("expression.diff") tmp_file = Path(black.dump_to_file(source)) try: result = BlackRunner().invoke( - black.main, ["--diff", "--color", str(tmp_file)] + black.main, ["--diff", "--color", str(tmp_file), f"--config={config}"] ) finally: os.unlink(tmp_file) @@ -478,14 +368,6 @@ class BlackTestCase(unittest.TestCase): self.assertIn("\033[31m", actual) self.assertIn("\033[0m", actual) - @patch("black.dump_to_file", dump_to_stderr) - def test_fstring(self) -> None: - source, expected = read_data("fstring") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - @patch("black.dump_to_file", dump_to_stderr) def test_pep_570(self) -> None: source, expected = read_data("pep_570") @@ -506,24 +388,17 @@ class BlackTestCase(unittest.TestCase): @patch("black.dump_to_file", dump_to_stderr) def test_string_quotes(self) -> None: source, expected = read_data("string_quotes") - actual = fs(source) + mode = black.Mode(experimental_string_processing=True) + actual = fs(source, mode=mode) self.assertFormatEqual(expected, actual) black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - mode = replace(DEFAULT_MODE, string_normalization=False) + black.assert_stable(source, actual, mode) + mode = replace(mode, string_normalization=False) not_normalized = fs(source, mode=mode) self.assertFormatEqual(source.replace("\\\n", ""), not_normalized) black.assert_equivalent(source, not_normalized) black.assert_stable(source, not_normalized, mode=mode) - @patch("black.dump_to_file", dump_to_stderr) - def test_docstring(self) -> None: - source, expected = read_data("docstring") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - @patch("black.dump_to_file", dump_to_stderr) def test_docstring_no_string_normalization(self) -> None: """Like test_docstring but with string normalization off.""" @@ -534,14 +409,6 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, mode) - def test_long_strings(self) -> None: - """Tests for splitting long strings.""" - source, expected = read_data("long_strings") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - def test_long_strings_flag_disabled(self) -> None: """Tests for turning off the string processing logic.""" source, expected = read_data("long_strings_flag_disabled") @@ -550,162 +417,6 @@ class BlackTestCase(unittest.TestCase): self.assertFormatEqual(expected, actual) black.assert_stable(expected, actual, mode) - @patch("black.dump_to_file", dump_to_stderr) - def test_long_strings__edge_case(self) -> None: - """Edge-case tests for splitting long strings.""" - source, expected = read_data("long_strings__edge_case") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_long_strings__regression(self) -> None: - """Regression tests for splitting long strings.""" - source, expected = read_data("long_strings__regression") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_slices(self) -> None: - source, expected = read_data("slices") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_percent_precedence(self) -> None: - source, expected = read_data("percent_precedence") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_comments(self) -> None: - source, expected = read_data("comments") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_comments2(self) -> None: - source, expected = read_data("comments2") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_comments3(self) -> None: - source, expected = read_data("comments3") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_comments4(self) -> None: - source, expected = read_data("comments4") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_comments5(self) -> None: - source, expected = read_data("comments5") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_comments6(self) -> None: - source, expected = read_data("comments6") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_comments7(self) -> None: - source, expected = read_data("comments7") - mode = replace(DEFAULT_MODE, target_versions={black.TargetVersion.PY38}) - actual = fs(source, mode=mode) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @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, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_cantfit(self) -> None: - source, expected = read_data("cantfit") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_import_spacing(self) -> None: - source, expected = read_data("import_spacing") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_composition(self) -> None: - source, expected = read_data("composition") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_composition_no_trailing_comma(self) -> None: - source, expected = read_data("composition_no_trailing_comma") - mode = replace(DEFAULT_MODE, target_versions={black.TargetVersion.PY38}) - actual = fs(source, mode=mode) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_empty_lines(self) -> None: - source, expected = read_data("empty_lines") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @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, DEFAULT_MODE) - - @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, DEFAULT_MODE) - @patch("black.dump_to_file", dump_to_stderr) def test_numeric_literals(self) -> None: source, expected = read_data("numeric_literals") @@ -724,21 +435,59 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, mode) - @patch("black.dump_to_file", dump_to_stderr) - def test_numeric_literals_py2(self) -> None: - source, expected = read_data("numeric_literals_py2") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_stable(source, actual, DEFAULT_MODE) + def test_skip_magic_trailing_comma(self) -> None: + source, _ = read_data("expression.py") + expected, _ = read_data("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 " + r"\d\d:\d\d:\d\d\.\d\d\d\d\d\d \+\d\d\d\d" + ) + try: + result = BlackRunner().invoke(black.main, ["-C", "--diff", str(tmp_file)]) + self.assertEqual(result.exit_code, 0) + finally: + os.unlink(tmp_file) + actual = result.output + actual = diff_header.sub(DETERMINISTIC_HEADER, actual) + actual = actual.rstrip() + "\n" # the diff output has a trailing space + if expected != actual: + dump = black.dump_to_file(actual) + msg = ( + "Expected diff isn't equal to the actual. If you made changes to" + " expression.py and this is an anticipated difference, overwrite" + f" tests/data/expression_skip_magic_trailing_comma.diff with {dump}" + ) + self.assertEqual(expected, actual, msg) - @patch("black.dump_to_file", dump_to_stderr) - def test_python2(self) -> None: - source, expected = read_data("python2") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) + @pytest.mark.without_python2 + def test_python2_should_fail_without_optional_install(self) -> None: + # python 3.7 and below will install typed-ast and will be able to parse Python 2 + if sys.version_info < (3, 8): + return + source = "x = 1234l" + tmp_file = Path(black.dump_to_file(source)) + try: + runner = BlackRunner() + result = runner.invoke(black.main, [str(tmp_file)]) + self.assertEqual(result.exit_code, 123) + finally: + os.unlink(tmp_file) + actual = ( + runner.stderr_bytes.decode() + .replace("\n", "") + .replace("\\n", "") + .replace("\\r", "") + .replace("\r", "") + ) + msg = ( + "The requested source code has invalid Python 3 syntax." + "If you are trying to format Python 2 files please reinstall Black" + " with the 'python2' extra: `python3 -m pip install black[python2]`." + ) + self.assertIn(msg, actual) + @pytest.mark.python2 @patch("black.dump_to_file", dump_to_stderr) def test_python2_print_function(self) -> None: source, expected = read_data("python2_print_function") @@ -748,14 +497,6 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, mode) - @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_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - @patch("black.dump_to_file", dump_to_stderr) def test_stub(self) -> None: mode = replace(DEFAULT_MODE, is_pyi=True) @@ -814,78 +555,6 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, DEFAULT_MODE) - @patch("black.dump_to_file", dump_to_stderr) - def test_fmtonoff(self) -> None: - source, expected = read_data("fmtonoff") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_fmtonoff2(self) -> None: - source, expected = read_data("fmtonoff2") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_fmtonoff3(self) -> None: - source, expected = read_data("fmtonoff3") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_fmtonoff4(self) -> None: - source, expected = read_data("fmtonoff4") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @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, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_new_line_between_class_and_code(self) -> None: - source, expected = read_data("class_methods_new_line") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_bracket_match(self) -> None: - source, expected = read_data("bracketmatch") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_tuple_assign(self) -> None: - source, expected = read_data("tupleassign") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - - @patch("black.dump_to_file", dump_to_stderr) - def test_beginning_backslash(self) -> None: - source, expected = read_data("beginning_backslash") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) - def test_tab_comment_indentation(self) -> None: contents_tab = "if 1:\n\tif 2:\n\t\tpass\n\t# comment\n\tpass\n" contents_spc = "if 1:\n if 2:\n pass\n # comment\n pass\n" @@ -1402,7 +1071,7 @@ class BlackTestCase(unittest.TestCase): fobj.write("print('hello')") self.invokeBlack([str(src)]) cache = black.read_cache(mode) - self.assertIn(src, cache) + self.assertIn(str(src), cache) def test_cache_single_file_already_cached(self) -> None: mode = DEFAULT_MODE @@ -1434,8 +1103,8 @@ class BlackTestCase(unittest.TestCase): with two.open("r") as fobj: self.assertEqual(fobj.read(), 'print("hello")\n') cache = black.read_cache(mode) - self.assertIn(one, cache) - self.assertIn(two, cache) + self.assertIn(str(one), cache) + self.assertIn(str(two), cache) def test_no_cache_when_writeback_diff(self) -> None: mode = DEFAULT_MODE @@ -1515,8 +1184,8 @@ class BlackTestCase(unittest.TestCase): src.touch() black.write_cache({}, [src], mode) cache = black.read_cache(mode) - self.assertIn(src, cache) - self.assertEqual(cache[src], black.get_cache_info(src)) + self.assertIn(str(src), cache) + self.assertEqual(cache[str(src)], black.get_cache_info(src)) def test_filter_cached(self) -> None: with TemporaryDirectory() as workspace: @@ -1527,7 +1196,10 @@ class BlackTestCase(unittest.TestCase): uncached.touch() cached.touch() cached_but_changed.touch() - cache = {cached: black.get_cache_info(cached), cached_but_changed: (0.0, 0)} + cache = { + str(cached): black.get_cache_info(cached), + str(cached_but_changed): (0.0, 0), + } todo, done = black.filter_cached( cache, {uncached, cached, cached_but_changed} ) @@ -1555,8 +1227,8 @@ class BlackTestCase(unittest.TestCase): fobj.write('print("hello")\n') self.invokeBlack([str(workspace)], exit_code=123) cache = black.read_cache(mode) - self.assertNotIn(failing, cache) - self.assertIn(clean, cache) + self.assertNotIn(str(failing), cache) + self.assertIn(str(clean), cache) def test_write_cache_write_fail(self) -> None: mode = DEFAULT_MODE @@ -1609,16 +1281,9 @@ class BlackTestCase(unittest.TestCase): path.touch() black.write_cache({}, [path], mode) one = black.read_cache(mode) - self.assertIn(path, one) + self.assertIn(str(path), one) two = black.read_cache(short_mode) - self.assertNotIn(path, two) - - def test_tricky_unicode_symbols(self) -> None: - source, expected = read_data("tricky_unicode_symbols") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) + self.assertNotIn(str(path), two) def test_single_file_force_pyi(self) -> None: pyi_mode = replace(DEFAULT_MODE, is_pyi=True) @@ -1632,9 +1297,9 @@ class BlackTestCase(unittest.TestCase): actual = fh.read() # verify cache with --pyi is separate pyi_cache = black.read_cache(pyi_mode) - self.assertIn(path, pyi_cache) + self.assertIn(str(path), pyi_cache) normal_cache = black.read_cache(DEFAULT_MODE) - self.assertNotIn(path, normal_cache) + self.assertNotIn(str(path), normal_cache) self.assertFormatEqual(expected, actual) black.assert_equivalent(contents, actual) black.assert_stable(contents, actual, pyi_mode) @@ -1661,8 +1326,8 @@ class BlackTestCase(unittest.TestCase): pyi_cache = black.read_cache(pyi_mode) normal_cache = black.read_cache(reg_mode) for path in paths: - self.assertIn(path, pyi_cache) - self.assertNotIn(path, normal_cache) + self.assertIn(str(path), pyi_cache) + self.assertNotIn(str(path), normal_cache) def test_pipe_force_pyi(self) -> None: source, expected = read_data("force_pyi") @@ -1686,9 +1351,9 @@ class BlackTestCase(unittest.TestCase): actual = fh.read() # verify cache with --target-version is separate py36_cache = black.read_cache(py36_mode) - self.assertIn(path, py36_cache) + self.assertIn(str(path), py36_cache) normal_cache = black.read_cache(reg_mode) - self.assertNotIn(path, normal_cache) + self.assertNotIn(str(path), normal_cache) self.assertEqual(actual, expected) @event_loop() @@ -1713,15 +1378,8 @@ class BlackTestCase(unittest.TestCase): pyi_cache = black.read_cache(py36_mode) normal_cache = black.read_cache(reg_mode) for path in paths: - self.assertIn(path, pyi_cache) - self.assertNotIn(path, normal_cache) - - def test_collections(self) -> None: - source, expected = read_data("collections") - actual = fs(source) - self.assertFormatEqual(expected, actual) - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, DEFAULT_MODE) + self.assertIn(str(path), pyi_cache) + self.assertNotIn(str(path), normal_cache) def test_pipe_force_py36(self) -> None: source, expected = read_data("force_py36") @@ -1748,7 +1406,14 @@ class BlackTestCase(unittest.TestCase): this_abs = THIS_DIR.resolve() sources.extend( black.gen_python_files( - path.iterdir(), this_abs, include, exclude, None, report, gitignore + path.iterdir(), + this_abs, + include, + exclude, + None, + None, + report, + gitignore, ) ) self.assertEqual(sorted(expected), sorted(sources)) @@ -1770,14 +1435,232 @@ class BlackTestCase(unittest.TestCase): src=(src,), quiet=True, verbose=False, - include=include, - exclude=exclude, + include=re.compile(include), + exclude=re.compile(exclude), + extend_exclude=None, + force_exclude=None, + report=report, + stdin_filename=None, + ) + ) + self.assertEqual(sorted(expected), sorted(sources)) + + @patch("black.find_project_root", lambda *args: THIS_DIR.resolve()) + def test_get_sources_with_stdin(self) -> None: + include = "" + exclude = r"/exclude/|a\.py" + src = "-" + report = black.Report() + expected = [Path("-")] + sources = list( + black.get_sources( + ctx=FakeContext(), + src=(src,), + quiet=True, + verbose=False, + include=re.compile(include), + exclude=re.compile(exclude), + extend_exclude=None, force_exclude=None, report=report, + stdin_filename=None, ) ) self.assertEqual(sorted(expected), sorted(sources)) + @patch("black.find_project_root", lambda *args: THIS_DIR.resolve()) + def test_get_sources_with_stdin_filename(self) -> None: + include = "" + exclude = r"/exclude/|a\.py" + src = "-" + report = black.Report() + stdin_filename = str(THIS_DIR / "data/collections.py") + expected = [Path(f"__BLACK_STDIN_FILENAME__{stdin_filename}")] + sources = list( + black.get_sources( + ctx=FakeContext(), + src=(src,), + quiet=True, + verbose=False, + include=re.compile(include), + exclude=re.compile(exclude), + extend_exclude=None, + force_exclude=None, + report=report, + stdin_filename=stdin_filename, + ) + ) + self.assertEqual(sorted(expected), sorted(sources)) + + @patch("black.find_project_root", lambda *args: THIS_DIR.resolve()) + def test_get_sources_with_stdin_filename_and_exclude(self) -> None: + # Exclude shouldn't exclude stdin_filename since it is mimicing the + # file being passed directly. This is the same as + # test_exclude_for_issue_1572 + path = THIS_DIR / "data" / "include_exclude_tests" + include = "" + exclude = r"/exclude/|a\.py" + src = "-" + report = black.Report() + stdin_filename = str(path / "b/exclude/a.py") + expected = [Path(f"__BLACK_STDIN_FILENAME__{stdin_filename}")] + sources = list( + black.get_sources( + ctx=FakeContext(), + src=(src,), + quiet=True, + verbose=False, + include=re.compile(include), + exclude=re.compile(exclude), + extend_exclude=None, + force_exclude=None, + report=report, + stdin_filename=stdin_filename, + ) + ) + self.assertEqual(sorted(expected), sorted(sources)) + + @patch("black.find_project_root", lambda *args: THIS_DIR.resolve()) + 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 + # test_exclude_for_issue_1572 + path = THIS_DIR / "data" / "include_exclude_tests" + include = "" + extend_exclude = r"/exclude/|a\.py" + src = "-" + report = black.Report() + stdin_filename = str(path / "b/exclude/a.py") + expected = [Path(f"__BLACK_STDIN_FILENAME__{stdin_filename}")] + sources = list( + black.get_sources( + ctx=FakeContext(), + src=(src,), + quiet=True, + verbose=False, + include=re.compile(include), + exclude=re.compile(""), + extend_exclude=re.compile(extend_exclude), + force_exclude=None, + report=report, + stdin_filename=stdin_filename, + ) + ) + self.assertEqual(sorted(expected), sorted(sources)) + + @patch("black.find_project_root", lambda *args: THIS_DIR.resolve()) + def test_get_sources_with_stdin_filename_and_force_exclude(self) -> None: + # Force exclude should exclude the file when passing it through + # stdin_filename + path = THIS_DIR / "data" / "include_exclude_tests" + include = "" + force_exclude = r"/exclude/|a\.py" + src = "-" + report = black.Report() + stdin_filename = str(path / "b/exclude/a.py") + sources = list( + black.get_sources( + ctx=FakeContext(), + src=(src,), + quiet=True, + verbose=False, + include=re.compile(include), + exclude=re.compile(""), + extend_exclude=None, + force_exclude=re.compile(force_exclude), + report=report, + stdin_filename=stdin_filename, + ) + ) + self.assertEqual([], sorted(sources)) + + def test_reformat_one_with_stdin(self) -> None: + with patch( + "black.format_stdin_to_stdout", + return_value=lambda *args, **kwargs: black.Changed.YES, + ) as fsts: + report = MagicMock() + path = Path("-") + black.reformat_one( + path, + fast=True, + write_back=black.WriteBack.YES, + mode=DEFAULT_MODE, + report=report, + ) + fsts.assert_called_once() + report.done.assert_called_with(path, black.Changed.YES) + + def test_reformat_one_with_stdin_filename(self) -> None: + with patch( + "black.format_stdin_to_stdout", + return_value=lambda *args, **kwargs: black.Changed.YES, + ) as fsts: + report = MagicMock() + p = "foo.py" + path = Path(f"__BLACK_STDIN_FILENAME__{p}") + expected = Path(p) + black.reformat_one( + path, + fast=True, + write_back=black.WriteBack.YES, + mode=DEFAULT_MODE, + report=report, + ) + fsts.assert_called_once_with( + fast=True, write_back=black.WriteBack.YES, mode=DEFAULT_MODE + ) + # __BLACK_STDIN_FILENAME__ should have been stripped + report.done.assert_called_with(expected, black.Changed.YES) + + def test_reformat_one_with_stdin_filename_pyi(self) -> None: + with patch( + "black.format_stdin_to_stdout", + return_value=lambda *args, **kwargs: black.Changed.YES, + ) as fsts: + report = MagicMock() + p = "foo.pyi" + path = Path(f"__BLACK_STDIN_FILENAME__{p}") + expected = Path(p) + black.reformat_one( + path, + fast=True, + write_back=black.WriteBack.YES, + mode=DEFAULT_MODE, + report=report, + ) + fsts.assert_called_once_with( + fast=True, + write_back=black.WriteBack.YES, + mode=replace(DEFAULT_MODE, is_pyi=True), + ) + # __BLACK_STDIN_FILENAME__ should have been stripped + report.done.assert_called_with(expected, black.Changed.YES) + + def test_reformat_one_with_stdin_and_existing_path(self) -> None: + with patch( + "black.format_stdin_to_stdout", + return_value=lambda *args, **kwargs: black.Changed.YES, + ) as fsts: + 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")) + # Make sure is_file actually returns True + self.assertTrue(p.is_file()) + path = Path(f"__BLACK_STDIN_FILENAME__{p}") + expected = Path(p) + black.reformat_one( + path, + fast=True, + write_back=black.WriteBack.YES, + mode=DEFAULT_MODE, + report=report, + ) + fsts.assert_called_once() + # __BLACK_STDIN_FILENAME__ should have been stripped + report.done.assert_called_with(expected, black.Changed.YES) + def test_gitignore_exclude(self) -> None: path = THIS_DIR / "data" / "include_exclude_tests" include = re.compile(r"\.pyi?$") @@ -1794,7 +1677,14 @@ class BlackTestCase(unittest.TestCase): this_abs = THIS_DIR.resolve() sources.extend( black.gen_python_files( - path.iterdir(), this_abs, include, exclude, None, report, gitignore + path.iterdir(), + this_abs, + include, + exclude, + None, + None, + report, + gitignore, ) ) self.assertEqual(sorted(expected), sorted(sources)) @@ -1824,25 +1714,21 @@ class BlackTestCase(unittest.TestCase): empty, re.compile(black.DEFAULT_EXCLUDES), None, + None, report, gitignore, ) ) self.assertEqual(sorted(expected), sorted(sources)) - def test_empty_exclude(self) -> None: + def test_extend_exclude(self) -> None: path = THIS_DIR / "data" / "include_exclude_tests" report = black.Report() gitignore = PathSpec.from_lines("gitwildmatch", []) - empty = re.compile(r"") sources: List[Path] = [] expected = [ - Path(path / "b/dont_exclude/a.py"), - Path(path / "b/dont_exclude/a.pyi"), Path(path / "b/exclude/a.py"), - Path(path / "b/exclude/a.pyi"), - Path(path / "b/.definitely_exclude/a.py"), - Path(path / "b/.definitely_exclude/a.pyi"), + Path(path / "b/dont_exclude/a.py"), ] this_abs = THIS_DIR.resolve() sources.extend( @@ -1850,7 +1736,8 @@ class BlackTestCase(unittest.TestCase): path.iterdir(), this_abs, re.compile(black.DEFAULT_INCLUDES), - empty, + re.compile(r"\.pyi$"), + re.compile(r"\.definitely_exclude"), None, report, gitignore, @@ -1858,8 +1745,8 @@ class BlackTestCase(unittest.TestCase): ) self.assertEqual(sorted(expected), sorted(sources)) - def test_invalid_include_exclude(self) -> None: - for option in ["--include", "--exclude"]: + def test_invalid_cli_regex(self) -> None: + for option in ["--include", "--exclude", "--extend-exclude", "--force-exclude"]: self.invokeBlack(["-", option, "**()(!!*)"], exit_code=2) def test_preserves_line_endings(self) -> None: @@ -1908,7 +1795,14 @@ class BlackTestCase(unittest.TestCase): try: list( black.gen_python_files( - path.iterdir(), root, include, exclude, None, report, gitignore + path.iterdir(), + root, + include, + exclude, + None, + None, + report, + gitignore, ) ) except ValueError as ve: @@ -1922,7 +1816,14 @@ class BlackTestCase(unittest.TestCase): with self.assertRaises(ValueError): list( black.gen_python_files( - path.iterdir(), root, include, exclude, None, report, gitignore + path.iterdir(), + root, + include, + exclude, + None, + None, + report, + gitignore, ) ) path.iterdir.assert_called() @@ -1969,14 +1870,6 @@ class BlackTestCase(unittest.TestCase): ): ff(THIS_FILE) - @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - def test_blackd_main(self) -> None: - with patch("blackd.web.run_app"): - result = CliRunner().invoke(blackd.main, []) - if result.exception is not None: - raise result.exception - self.assertEqual(result.exit_code, 0) - def test_invalid_config_return_code(self) -> None: tmp_file = Path(black.dump_to_file()) try: @@ -2035,6 +1928,34 @@ class BlackTestCase(unittest.TestCase): self.assertEqual(black.find_project_root((src_dir,)), src_dir.resolve()) self.assertEqual(black.find_project_root((src_python,)), src_dir.resolve()) + @patch("black.find_user_pyproject_toml", black.find_user_pyproject_toml.__wrapped__) + def test_find_user_pyproject_toml_linux(self) -> None: + if system() == "Windows": + return + + # Test if XDG_CONFIG_HOME is checked + with TemporaryDirectory() as workspace: + tmp_user_config = Path(workspace) / "black" + with patch.dict("os.environ", {"XDG_CONFIG_HOME": workspace}): + self.assertEqual( + black.find_user_pyproject_toml(), tmp_user_config.resolve() + ) + + # Test fallback for XDG_CONFIG_HOME + with patch.dict("os.environ"): + os.environ.pop("XDG_CONFIG_HOME", None) + fallback_user_config = Path("~/.config").expanduser() / "black" + self.assertEqual( + black.find_user_pyproject_toml(), fallback_user_config.resolve() + ) + + def test_find_user_pyproject_toml_windows(self) -> None: + if system() != "Windows": + return + + user_config_path = Path.home() / ".black" + self.assertEqual(black.find_user_pyproject_toml(), user_config_path.resolve()) + def test_bpo_33660_workaround(self) -> None: if system() == "Windows": return @@ -2052,173 +1973,53 @@ class BlackTestCase(unittest.TestCase): finally: os.chdir(str(old_cwd)) + def test_newline_comment_interaction(self) -> None: + source = "class A:\\\r\n# type: ignore\n pass\n" + output = black.format_str(source, mode=DEFAULT_MODE) + black.assert_stable(source, output, mode=DEFAULT_MODE) -class BlackDTestCase(AioHTTPTestCase): - async def get_application(self) -> web.Application: - return blackd.make_app() - - # TODO: remove these decorators once the below is released - # https://github.com/aio-libs/aiohttp/pull/3727 - @skip_if_exception("ClientOSError") - @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @unittest_run_loop - async def test_blackd_request_needs_formatting(self) -> None: - response = await self.client.post("/", data=b"print('hello world')") - self.assertEqual(response.status, 200) - 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") - @unittest_run_loop - async def test_blackd_request_no_change(self) -> None: - response = await self.client.post("/", data=b'print("hello world")\n') - 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") - @unittest_run_loop - async def test_blackd_request_syntax_error(self) -> None: - response = await self.client.post("/", data=b"what even ( is") - self.assertEqual(response.status, 400) - content = await response.text() - self.assertTrue( - content.startswith("Cannot parse"), - msg=f"Expected error to start with 'Cannot parse', got {repr(content)}", - ) + def test_bpo_2142_workaround(self) -> None: - @skip_if_exception("ClientOSError") - @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @unittest_run_loop - async def test_blackd_unsupported_version(self) -> None: - response = await self.client.post( - "/", data=b"what", headers={blackd.PROTOCOL_VERSION_HEADER: "2"} - ) - self.assertEqual(response.status, 501) - - @skip_if_exception("ClientOSError") - @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @unittest_run_loop - async def test_blackd_supported_version(self) -> None: - response = await self.client.post( - "/", data=b"what", headers={blackd.PROTOCOL_VERSION_HEADER: "1"} - ) - self.assertEqual(response.status, 200) - - @skip_if_exception("ClientOSError") - @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @unittest_run_loop - async def test_blackd_invalid_python_variant(self) -> None: - async def check(header_value: str, expected_status: int = 400) -> None: - response = await self.client.post( - "/", data=b"what", headers={blackd.PYTHON_VARIANT_HEADER: header_value} - ) - self.assertEqual(response.status, expected_status) - - await check("lol") - await check("ruby3.5") - await check("pyi3.6") - await check("py1.5") - await check("2.8") - await check("py2.8") - await check("3.0") - await check("pypy3.0") - await check("jython3.4") - - @skip_if_exception("ClientOSError") - @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @unittest_run_loop - async def test_blackd_pyi(self) -> None: - source, expected = read_data("stub.pyi") - response = await self.client.post( - "/", data=source, headers={blackd.PYTHON_VARIANT_HEADER: "pyi"} - ) - self.assertEqual(response.status, 200) - self.assertEqual(await response.text(), expected) + # https://bugs.python.org/issue2142 - @skip_if_exception("ClientOSError") - @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @unittest_run_loop - async def test_blackd_diff(self) -> None: + source, _ = read_data("missing_final_newline.py") + # read_data adds a trailing newline + source = source.rstrip() + expected, _ = read_data("missing_final_newline.diff") + tmp_file = Path(black.dump_to_file(source, ensure_final_newline=False)) diff_header = re.compile( - r"(In|Out)\t\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d\.\d\d\d\d\d\d \+\d\d\d\d" - ) - - source, _ = read_data("blackd_diff.py") - expected, _ = read_data("blackd_diff.diff") - - response = await self.client.post( - "/", data=source, headers={blackd.DIFF_HEADER: "true"} + rf"{re.escape(str(tmp_file))}\t\d\d\d\d-\d\d-\d\d " + r"\d\d:\d\d:\d\d\.\d\d\d\d\d\d \+\d\d\d\d" ) - self.assertEqual(response.status, 200) - - actual = await response.text() + try: + result = BlackRunner().invoke(black.main, ["--diff", str(tmp_file)]) + self.assertEqual(result.exit_code, 0) + finally: + os.unlink(tmp_file) + actual = result.output actual = diff_header.sub(DETERMINISTIC_HEADER, actual) self.assertEqual(actual, expected) - @skip_if_exception("ClientOSError") - @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @unittest_run_loop - async def test_blackd_python_variant(self) -> None: - code = ( - "def f(\n" - " and_has_a_bunch_of,\n" - " very_long_arguments_too,\n" - " and_lots_of_them_as_well_lol,\n" - " **and_very_long_keyword_arguments\n" - "):\n" - " pass\n" + @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' - async def check(header_value: str, expected_status: int) -> None: - response = await self.client.post( - "/", data=code, headers={blackd.PYTHON_VARIANT_HEADER: header_value} - ) - self.assertEqual( - response.status, expected_status, msg=await response.text() - ) - - await check("3.6", 200) - await check("py3.6", 200) - await check("3.6,3.7", 200) - await check("3.6,py3.7", 200) - await check("py36,py37", 200) - await check("36", 200) - await check("3.6.4", 200) - - await check("2", 204) - await check("2.7", 204) - await check("py2.7", 204) - await check("3.4", 204) - await check("py3.4", 204) - await check("py34,py36", 204) - await check("34", 204) - - @skip_if_exception("ClientOSError") - @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @unittest_run_loop - async def test_blackd_line_length(self) -> None: - response = await self.client.post( - "/", data=b'print("hello")\n', headers={blackd.LINE_LENGTH_HEADER: "7"} - ) - self.assertEqual(response.status, 200) - - @skip_if_exception("ClientOSError") - @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @unittest_run_loop - async def test_blackd_invalid_line_length(self) -> None: - response = await self.client.post( - "/", data=b'print("hello")\n', headers={blackd.LINE_LENGTH_HEADER: "NaN"} + result = CliRunner().invoke( + black.main, + ["-", "-q", "--target-version=py27"], + input=BytesIO(source), ) - self.assertEqual(response.status, 400) - - @skip_if_exception("ClientOSError") - @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @unittest_run_loop - async def test_blackd_response_black_version_header(self) -> None: - response = await self.client.post("/") - self.assertIsNotNone(response.headers.get(blackd.BLACK_VERSION_HEADER)) + + self.assertEqual(result.exit_code, 0) + actual = result.output + self.assertFormatEqual(actual, expected) with open(black.__file__, "r", encoding="utf-8") as _bf: