def test_string_quotes(self) -> None:
source, expected = read_data("string_quotes")
actual = fs(source)
self.assertFormatEqual(expected, actual)
assert_equivalent(source, actual)
assert_stable(source, actual, FileMode())
mode = FileMode(string_normalization=False)
not_normalized = fs(source, mode=mode)
self.assertFormatEqual(source, not_normalized)
assert_equivalent(source, not_normalized)
assert_stable(source, not_normalized, mode=mode)
def test_numeric_literals_ignoring_underscores(self) -> None:
source, expected = read_data("numeric_literals_skip_underscores")
mode = FileMode(target_versions=PY36_VERSIONS)
actual = fs(source, mode=mode)
self.assertFormatEqual(expected, actual)
assert_equivalent(source, actual)
assert_stable(source, actual, mode)
def test_pep_570(self) -> None:
source, expected = read_data("pep_570")
actual = fs(source)
self.assertFormatEqual(expected, actual)
assert_stable(source, actual, FileMode())
if sys.version_info >= (3, 8):
assert_equivalent(source, actual)
def test_python2_print_function(self) -> None:
source, expected = read_data("python2_print_function")
mode = FileMode(target_versions={TargetVersion.PY27})
actual = fs(source, mode=mode)
self.assertFormatEqual(expected, actual)
assert_equivalent(source, actual)
assert_stable(source, actual, mode)
def test_expression_ff(self) -> None:
source, expected = read_data("expression")
with TempFile() as tmp_file:
self.assertTrue(ff(tmp_file))
actual = tmp_file.read()
self.assertFormatEqual(expected, actual)
with patch("dump_to_file", dump_to_stderr):
assert_equivalent(source, actual)
assert_stable(source, actual, FileMode())
def test_format_file_contents(self) -> None:
empty = ""
mode = FileMode()
with self.assertRaises(NothingChanged):
format_file_contents(empty, mode=mode, fast=False)
just_nl = "\n"
with self.assertRaises(NothingChanged):
format_file_contents(just_nl, mode=mode, fast=False)
same = "j = [1, 2, 3]\n"
with self.assertRaises(NothingChanged):
format_file_contents(same, mode=mode, fast=False)
different = "j = [1,2,3]"
expected = same
actual = format_file_contents(different, mode=mode, fast=False)
self.assertEqual(expected, actual)
invalid = "return if you can"
with self.assertRaises(InvalidInput) as e:
format_file_contents(invalid, mode=mode, fast=False)
self.assertEqual(str(e.exception),
"Cannot parse: 1:7: return if you can")
def test_bracket_match(self) -> None:
source, expected = read_data("bracketmatch")
actual = fs(source)
self.assertFormatEqual(expected, actual)
assert_equivalent(source, actual)
assert_stable(source, actual, FileMode())
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)
assert_equivalent(source, actual)
assert_stable(source, actual, FileMode())
def test_remove_empty_parentheses_after_class(self) -> None:
source, expected = read_data("class_blank_parentheses")
actual = fs(source)
self.assertFormatEqual(expected, actual)
assert_equivalent(source, actual)
assert_stable(source, actual, FileMode())
def test_stub(self) -> None:
mode = FileMode(is_pyi=True)
source, expected = read_data("stub.pyi")
actual = fs(source, mode=mode)
self.assertFormatEqual(expected, actual)
assert_stable(source, actual, mode)
def test_python2_unicode_literals(self) -> None:
source, expected = read_data("python2_unicode_literals")
actual = fs(source)
self.assertFormatEqual(expected, actual)
assert_equivalent(source, actual)
assert_stable(source, actual, FileMode())
def test_empty(self) -> None:
source = expected = ""
actual = fs(source)
self.assertFormatEqual(expected, actual)
assert_equivalent(source, actual)
assert_stable(source, actual, FileMode())
def test_comment_after_escaped_newline(self) -> None:
source, expected = read_data("comment_after_escaped_newline")
actual = fs(source)
self.assertFormatEqual(expected, actual)
assert_equivalent(source, actual)
assert_stable(source, actual, FileMode())
def test_function_trailing_comma(self) -> None:
source, expected = read_data("function_trailing_comma")
actual = fs(source)
self.assertFormatEqual(expected, actual)
assert_equivalent(source, actual)
assert_stable(source, actual, FileMode())
def test_beginning_backslash(self) -> None:
source, expected = read_data("beginning_backslash")
actual = fs(source)
self.assertFormatEqual(expected, actual)
assert_equivalent(source, actual)
assert_stable(source, actual, FileMode())
def test_deep(self) -> None:
source, expected = read_data("deep")
actual = fs(source)
self.assertFormatEqual(expected, actual)
assert_equivalent(source, actual)
assert_stable(source, actual, FileMode())
def test_numeric_literals_py2(self) -> None:
source, expected = read_data("numeric_literals_py2")
actual = fs(source)
self.assertFormatEqual(expected, actual)
assert_stable(source, actual, FileMode())
def test_tricky_unicode_symbols(self) -> None:
source, expected = read_data("tricky_unicode_symbols")
actual = fs(source)
self.assertFormatEqual(expected, actual)
assert_equivalent(source, actual)
assert_stable(source, actual, FileMode())
dump_to_file,
NothingChanged,
format_file_contents,
InvalidInput,
WriteBack,
main,
)
from click.testing import CliRunner
from mo_files import TempFile
from pcf import format_file_in_place, format_str
from tests.utils import assert_equivalent, assert_stable, FileMode, assert_close_enough
CLOSE_ENOUGH = True
ff = partial(format_file_in_place, mode=FileMode(), fast=True)
fs = partial(format_str, mode=FileMode())
THIS_FILE = Path(__file__)
THIS_DIR = THIS_FILE.parent
EMPTY_LINE = "# EMPTY LINE WITH WHITESPACE" + " (this comment will be removed)"
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] = []