X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/40fae18134916b8499bd992d8bef4ae23bcd2986..497a72560dd3612a062cbb0d8cb2f8c3c93b74ff:/tests/test_format.py?ds=sidebyside diff --git a/tests/test_format.py b/tests/test_format.py index fc9678a..fd5f596 100644 --- a/tests/test_format.py +++ b/tests/test_format.py @@ -1,19 +1,21 @@ +from dataclasses import replace +from typing import Any, Iterator, List from unittest.mock import patch -import black import pytest -from parameterized import parameterized +import black from tests.util import ( - BlackBaseTestCase, - fs, DEFAULT_MODE, + PY36_VERSIONS, + THIS_DIR, + assert_format, dump_to_stderr, read_data, - THIS_DIR, ) -SIMPLE_CASES = [ +SIMPLE_CASES: List[str] = [ + "attribute_access_on_number_literals", "beginning_backslash", "bracketmatch", "class_blank_parentheses", @@ -42,35 +44,51 @@ SIMPLE_CASES = [ "fmtskip4", "fmtskip5", "fmtskip6", + "fmtskip7", "fstring", "function", "function2", "function_trailing_comma", "import_spacing", + "power_op_spacing", "remove_parens", "slices", "string_prefixes", + "torture", + "trailing_comma_optional_parens1", + "trailing_comma_optional_parens2", + "trailing_comma_optional_parens3", "tricky_unicode_symbols", "tupleassign", ] -SIMPLE_CASES_PY2 = [ - "numeric_literals_py2", - "python2", - "python2_unicode_literals", +PY310_CASES: List[str] = [ + "starred_for_target", + "pattern_matching_simple", + "pattern_matching_complex", + "pattern_matching_extras", + "pattern_matching_style", + "pattern_matching_generic", + "parenthesized_context_managers", ] -EXPERIMENTAL_STRING_PROCESSING_CASES = [ +PREVIEW_CASES: List[str] = [ + # string processing "cantfit", "comments7", + "comments8", "long_strings", "long_strings__edge_case", "long_strings__regression", "percent_precedence", + "remove_except_parens", + "remove_for_brackets", + "one_element_subscript", + "remove_await_parens", + "return_annotation_brackets", ] - -SOURCES = [ +SOURCES: List[str] = [ "src/black/__init__.py", "src/black/__main__.py", "src/black/brackets.py", @@ -106,40 +124,158 @@ SOURCES = [ "tests/test_black.py", "tests/test_blackd.py", "tests/test_format.py", - "tests/test_primer.py", "tests/optional.py", "tests/util.py", "tests/conftest.py", ] -class TestSimpleFormat(BlackBaseTestCase): - @parameterized.expand(SIMPLE_CASES_PY2) - @pytest.mark.python2 - @patch("black.dump_to_file", dump_to_stderr) - def test_simple_format_py2(self, filename: str) -> None: - self.check_file(filename, DEFAULT_MODE) - - @parameterized.expand(SIMPLE_CASES) - @patch("black.dump_to_file", dump_to_stderr) - def test_simple_format(self, filename: str) -> None: - self.check_file(filename, DEFAULT_MODE) - - @parameterized.expand(EXPERIMENTAL_STRING_PROCESSING_CASES) - @patch("black.dump_to_file", dump_to_stderr) - def test_experimental_format(self, filename: str) -> None: - self.check_file(filename, black.Mode(experimental_string_processing=True)) - - @parameterized.expand(SOURCES) - @patch("black.dump_to_file", dump_to_stderr) - def test_source_is_formatted(self, filename: str) -> None: - path = THIS_DIR.parent / filename - self.check_file(str(path), DEFAULT_MODE, data=False) - - def check_file(self, filename: str, mode: black.Mode, *, data: bool = True) -> None: - source, expected = read_data(filename, data=data) - actual = fs(source, mode=mode) - self.assertFormatEqual(expected, actual) - if source != actual: - black.assert_equivalent(source, actual) - black.assert_stable(source, actual, mode) +@pytest.fixture(autouse=True) +def patch_dump_to_file(request: Any) -> Iterator[None]: + with patch("black.dump_to_file", dump_to_stderr): + yield + + +def check_file(filename: str, mode: black.Mode, *, data: bool = True) -> None: + source, expected = read_data(filename, data=data) + assert_format(source, expected, mode, fast=False) + + +@pytest.mark.parametrize("filename", SIMPLE_CASES) +def test_simple_format(filename: str) -> None: + check_file(filename, DEFAULT_MODE) + + +@pytest.mark.parametrize("filename", PREVIEW_CASES) +def test_preview_format(filename: str) -> None: + check_file(filename, black.Mode(preview=True)) + + +@pytest.mark.parametrize("filename", SOURCES) +def test_source_is_formatted(filename: str) -> None: + path = THIS_DIR.parent / filename + check_file(str(path), DEFAULT_MODE, data=False) + + +# =============== # +# Complex cases +# ============= # + + +def test_empty() -> None: + source = expected = "" + assert_format(source, expected) + + +def test_pep_572() -> None: + source, expected = read_data("pep_572") + assert_format(source, expected, minimum_version=(3, 8)) + + +def test_pep_572_remove_parens() -> None: + source, expected = read_data("pep_572_remove_parens") + assert_format(source, expected, minimum_version=(3, 8)) + + +def test_pep_572_do_not_remove_parens() -> 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 + assert_format(source, expected, fast=True) + + +@pytest.mark.parametrize("major, minor", [(3, 9), (3, 10)]) +def test_pep_572_newer_syntax(major: int, minor: int) -> None: + source, expected = read_data(f"pep_572_py{major}{minor}") + assert_format(source, expected, minimum_version=(major, minor)) + + +def test_pep_570() -> None: + source, expected = read_data("pep_570") + assert_format(source, expected, minimum_version=(3, 8)) + + +def test_remove_with_brackets() -> None: + source, expected = read_data("remove_with_brackets") + assert_format( + source, + expected, + black.Mode(preview=True), + minimum_version=(3, 9), + ) + + +@pytest.mark.parametrize("filename", PY310_CASES) +def test_python_310(filename: str) -> None: + source, expected = read_data(filename) + mode = black.Mode(target_versions={black.TargetVersion.PY310}) + assert_format(source, expected, mode, minimum_version=(3, 10)) + + +def test_python_310_without_target_version() -> None: + source, expected = read_data("pattern_matching_simple") + mode = black.Mode() + assert_format(source, expected, mode, minimum_version=(3, 10)) + + +def test_patma_invalid() -> None: + source, expected = read_data("pattern_matching_invalid") + mode = black.Mode(target_versions={black.TargetVersion.PY310}) + with pytest.raises(black.parsing.InvalidInput) as exc_info: + assert_format(source, expected, mode, minimum_version=(3, 10)) + + exc_info.match("Cannot parse: 10:11") + + +def test_python_2_hint() -> None: + with pytest.raises(black.parsing.InvalidInput) as exc_info: + assert_format("print 'daylily'", "print 'daylily'") + exc_info.match(black.parsing.PY2_HINT) + + +def test_docstring_no_string_normalization() -> None: + """Like test_docstring but with string normalization off.""" + source, expected = read_data("docstring_no_string_normalization") + mode = replace(DEFAULT_MODE, string_normalization=False) + assert_format(source, expected, mode) + + +def test_long_strings_flag_disabled() -> None: + """Tests for turning off the string processing logic.""" + source, expected = read_data("long_strings_flag_disabled") + mode = replace(DEFAULT_MODE, experimental_string_processing=False) + assert_format(source, expected, mode) + + +def test_numeric_literals() -> None: + source, expected = read_data("numeric_literals") + mode = replace(DEFAULT_MODE, target_versions=PY36_VERSIONS) + assert_format(source, expected, mode) + + +def test_numeric_literals_ignoring_underscores() -> None: + source, expected = read_data("numeric_literals_skip_underscores") + mode = replace(DEFAULT_MODE, target_versions=PY36_VERSIONS) + assert_format(source, expected, mode) + + +def test_stub() -> None: + mode = replace(DEFAULT_MODE, is_pyi=True) + source, expected = read_data("stub.pyi") + assert_format(source, expected, mode) + + +def test_python38() -> None: + source, expected = read_data("python38") + assert_format(source, expected, minimum_version=(3, 8)) + + +def test_python39() -> None: + source, expected = read_data("python39") + assert_format(source, expected, minimum_version=(3, 9)) + + +def test_power_op_newline() -> None: + # requires line_length=0 + source, expected = read_data("power_op_newline") + assert_format(source, expected, mode=black.Mode(line_length=0))