def test_patma_hint() -> None:
source, expected = read_data("pattern_matching_simple")
mode = black.Mode(target_versions={black.TargetVersion.PY39})
with pytest.raises(black.parsing.InvalidInput) as exc_info:
assert_format(source, expected, mode, minimum_version=(3, 10))
exc_info.match(black.parsing.PY310_HINT)
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_remove_with_brackets() -> None:
source, expected = read_data("remove_with_brackets")
assert_format(
source,
expected,
black.Mode(preview=True),
minimum_version=(3, 9),
)
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_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_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_long_first_line() -> None:
source, expected = read_data("long_first_line")
assert_format(source, expected, mode=black.Mode(use_tabs=True))
def test_python39() -> None:
source, expected = read_data("python39")
assert_format(source, expected, minimum_version=(3, 9))
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_pep_572_remove_parens() -> None:
source, expected = read_data("pep_572_remove_parens")
assert_format(source, expected, minimum_version=(3, 8))
def test_empty() -> None:
source = expected = ""
assert_format(source, expected)
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)
def test_python2_print_function() -> None:
source, expected = read_data("python2_print_function")
mode = replace(DEFAULT_MODE, target_versions={black.TargetVersion.PY27})
assert_format(source, expected, mode)
def test_line_length_tabs() -> None:
source, expected = read_data("line_length_tabs")
assert_format(source,
expected,
mode=black.Mode(line_length=20, use_tabs=True))
def test_docstring_tabs() -> None:
source, expected = read_data("docstring_tabs")
assert_format(source, expected, mode=black.Mode(use_tabs=True))
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_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)
def test_stub() -> None:
mode = replace(DEFAULT_MODE, is_pyi=True)
source, expected = read_data("stub.pyi")
assert_format(source, expected, mode)
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_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))
def test_pep_570() -> None:
source, expected = read_data("pep_570")
assert_format(source, expected, minimum_version=(3, 8))