from tempfile import TemporaryDirectory
from typing import Any, BinaryIO, Generator, List, Tuple, Iterator
import unittest
-from unittest.mock import patch
+from unittest.mock import patch, MagicMock
from click import unstyle
from click.testing import CliRunner
This is a hack that can be removed once we depend on Click 7.x"""
- def __init__(self, stderrbuf: BinaryIO) -> None:
- self.stderrbuf = stderrbuf
+ def __init__(self) -> None:
+ self.stderrbuf = BytesIO()
+ self.stdoutbuf = BytesIO()
+ self.stdout_bytes = b""
+ self.stderr_bytes = b""
super().__init__()
@contextmanager
sys.stderr = TextIOWrapper(self.stderrbuf, encoding=self.charset)
yield output
finally:
+ self.stdout_bytes = sys.stdout.buffer.getvalue() # type: ignore
+ self.stderr_bytes = sys.stderr.buffer.getvalue() # type: ignore
sys.stderr = hold_stderr
def test_piping(self) -> None:
source, expected = read_data("../black", data=False)
- stderrbuf = BytesIO()
- result = BlackRunner(stderrbuf).invoke(
- black.main, ["-", "--fast", f"--line-length={ll}"], input=source
+ result = BlackRunner().invoke(
+ black.main,
+ ["-", "--fast", f"--line-length={ll}"],
+ input=BytesIO(source.encode("utf8")),
)
self.assertEqual(result.exit_code, 0)
self.assertFormatEqual(expected, result.output)
source, _ = read_data("expression.py")
expected, _ = read_data("expression.diff")
config = THIS_DIR / "data" / "empty_pyproject.toml"
- stderrbuf = BytesIO()
args = ["-", "--fast", f"--line-length={ll}", "--diff", f"--config={config}"]
- result = BlackRunner(stderrbuf).invoke(black.main, args, input=source)
+ result = BlackRunner().invoke(
+ black.main, args, input=BytesIO(source.encode("utf8"))
+ )
self.assertEqual(result.exit_code, 0)
actual = diff_header.sub("[Deterministic header]", result.output)
actual = actual.rstrip() + "\n" # the diff output has a trailing space
rf"{re.escape(str(tmp_file))}\t\d\d\d\d-\d\d-\d\d "
rf"\d\d:\d\d:\d\d\.\d\d\d\d\d\d \+\d\d\d\d"
)
- stderrbuf = BytesIO()
try:
- result = BlackRunner(stderrbuf).invoke(
- black.main, ["--diff", str(tmp_file)]
- )
+ result = BlackRunner().invoke(black.main, ["--diff", str(tmp_file)])
self.assertEqual(result.exit_code, 0)
finally:
os.unlink(tmp_file)
black.assert_equivalent(source, actual)
black.assert_stable(source, actual, line_length=ll)
+ @patch("black.dump_to_file", dump_to_stderr)
+ def test_numeric_literals(self) -> None:
+ source, expected = read_data("numeric_literals")
+ actual = fs(source, mode=black.FileMode.PYTHON36)
+ 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_numeric_literals_py2(self) -> None:
+ source, expected = read_data("numeric_literals_py2")
+ 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_python2(self) -> None:
source, expected = read_data("python2")
self.assertFormatEqual(expected, actual)
black.assert_stable(source, actual, line_length=ll, mode=mode)
+ @patch("black.dump_to_file", dump_to_stderr)
+ def test_python37(self) -> None:
+ source, expected = read_data("python37")
+ actual = fs(source)
+ self.assertFormatEqual(expected, actual)
+ major, minor = sys.version_info[:2]
+ if major > 3 or (major == 3 and minor >= 7):
+ black.assert_equivalent(source, actual)
+ black.assert_stable(source, actual, line_length=ll)
+
@patch("black.dump_to_file", dump_to_stderr)
def test_fmtonoff(self) -> None:
source, expected = read_data("fmtonoff")
black.assert_equivalent(source, actual)
black.assert_stable(source, actual, line_length=ll)
+ @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, 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")
black.assert_equivalent(source, actual)
black.assert_stable(source, actual, line_length=ll)
+ @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, line_length=ll)
+
def test_report_verbose(self) -> None:
report = black.Report(verbose=True)
out_lines = []
self.assertTrue(black.is_python36(node))
node = black.lib2to3_parse("def f(*, arg): f'string'\n")
self.assertTrue(black.is_python36(node))
+ node = black.lib2to3_parse("123_456\n")
+ self.assertTrue(black.is_python36(node))
+ node = black.lib2to3_parse("123456\n")
+ self.assertFalse(black.is_python36(node))
source, expected = read_data("function")
node = black.lib2to3_parse(source)
self.assertTrue(black.is_python36(node))
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))
+ node = black.lib2to3_parse(
+ "from __future__ import unicode_literals as _unicode_literals"
+ )
+ self.assertEqual({"unicode_literals"}, black.get_future_imports(node))
+ node = black.lib2to3_parse(
+ "from __future__ import unicode_literals as _lol, print"
+ )
+ self.assertEqual({"unicode_literals", "print"}, black.get_future_imports(node))
def test_debug_visitor(self) -> None:
source, _ = read_data("debug_visitor.py")
def test_no_cache_when_stdin(self) -> None:
mode = black.FileMode.AUTO_DETECT
with cache_dir():
- result = CliRunner().invoke(black.main, ["-"], input="print('hello')")
+ result = CliRunner().invoke(
+ black.main, ["-"], input=BytesIO(b"print('hello')")
+ )
self.assertEqual(result.exit_code, 0)
cache_file = black.get_cache_file(black.DEFAULT_LINE_LENGTH, mode)
self.assertFalse(cache_file.exists())
src1 = (THIS_DIR / "data" / "string_quotes.py").resolve()
result = CliRunner().invoke(black.main, [str(src1), "--diff", "--check"])
self.assertEqual(result.exit_code, 1, result.output)
-
# Files which will not be reformatted.
src2 = (THIS_DIR / "data" / "composition.py").resolve()
result = CliRunner().invoke(black.main, [str(src2), "--diff", "--check"])
self.assertEqual(result.exit_code, 0, result.output)
-
# Multi file command.
result = CliRunner().invoke(
black.main, [str(src1), str(src2), "--diff", "--check"]
def test_pipe_force_pyi(self) -> None:
source, expected = read_data("force_pyi")
- result = CliRunner().invoke(black.main, ["-", "-q", "--pyi"], input=source)
+ result = CliRunner().invoke(
+ black.main, ["-", "-q", "--pyi"], input=BytesIO(source.encode("utf8"))
+ )
self.assertEqual(result.exit_code, 0)
actual = result.output
self.assertFormatEqual(actual, expected)
def test_pipe_force_py36(self) -> None:
source, expected = read_data("force_py36")
- result = CliRunner().invoke(black.main, ["-", "-q", "--py36"], input=source)
+ result = CliRunner().invoke(
+ black.main, ["-", "-q", "--py36"], input=BytesIO(source.encode("utf8"))
+ )
self.assertEqual(result.exit_code, 0)
actual = result.output
self.assertFormatEqual(actual, expected)
test_file.write_bytes(contents.encode())
ff(test_file, write_back=black.WriteBack.YES)
updated_contents: bytes = test_file.read_bytes()
- self.assertIn(nl.encode(), updated_contents) # type: ignore
+ self.assertIn(nl.encode(), updated_contents)
if nl == "\n":
- self.assertNotIn(b"\r\n", updated_contents) # type: ignore
+ self.assertNotIn(b"\r\n", updated_contents)
+
+ def test_preserves_line_endings_via_stdin(self) -> None:
+ for nl in ["\n", "\r\n"]:
+ contents = nl.join(["def f( ):", " pass"])
+ runner = BlackRunner()
+ result = runner.invoke(
+ black.main, ["-", "--fast"], input=BytesIO(contents.encode("utf8"))
+ )
+ self.assertEqual(result.exit_code, 0)
+ output = runner.stdout_bytes
+ self.assertIn(nl.encode("utf8"), output)
+ if nl == "\n":
+ self.assertNotIn(b"\r\n", output)
def test_assert_equivalent_different_asts(self) -> None:
with self.assertRaises(AssertionError):
black.assert_equivalent("{}", "None")
+ def test_symlink_out_of_root_directory(self) -> None:
+ path = MagicMock()
+ root = THIS_DIR
+ child = MagicMock()
+ include = re.compile(black.DEFAULT_INCLUDES)
+ exclude = re.compile(black.DEFAULT_EXCLUDES)
+ report = black.Report()
+ # `child` should behave like a symlink which resolved path is clearly
+ # outside of the `root` directory.
+ path.iterdir.return_value = [child]
+ child.resolve.return_value = Path("/a/b/c")
+ child.is_symlink.return_value = True
+ try:
+ list(black.gen_python_files_in_dir(path, root, include, exclude, report))
+ except ValueError as ve:
+ self.fail("`get_python_files_in_dir()` failed: {ve}")
+ path.iterdir.assert_called_once()
+ child.resolve.assert_called_once()
+ child.is_symlink.assert_called_once()
+ # `child` should behave like a strange file which resolved path is clearly
+ # outside of the `root` directory.
+ child.is_symlink.return_value = False
+ with self.assertRaises(ValueError):
+ list(black.gen_python_files_in_dir(path, root, include, exclude, report))
+ path.iterdir.assert_called()
+ self.assertEqual(path.iterdir.call_count, 2)
+ child.resolve.assert_called()
+ self.assertEqual(child.resolve.call_count, 2)
+ child.is_symlink.assert_called()
+ self.assertEqual(child.is_symlink.call_count, 2)
+
+ def test_shhh_click(self) -> None:
+ try:
+ from click import _unicodefun # type: ignore
+ except ModuleNotFoundError:
+ self.skipTest("Incompatible Click version")
+ if not hasattr(_unicodefun, "_verify_python3_env"):
+ self.skipTest("Incompatible Click version")
+ # First, let's see if Click is crashing with a preferred ASCII charset.
+ with patch("locale.getpreferredencoding") as gpe:
+ gpe.return_value = "ASCII"
+ with self.assertRaises(RuntimeError):
+ _unicodefun._verify_python3_env()
+ # Now, let's silence Click...
+ black.patch_click()
+ # ...and confirm it's silent.
+ with patch("locale.getpreferredencoding") as gpe:
+ gpe.return_value = "ASCII"
+ try:
+ _unicodefun._verify_python3_env()
+ except RuntimeError as re:
+ self.fail(f"`patch_click()` failed, exception still raised: {re}")
+
if __name__ == "__main__":
unittest.main(module="test_black")
projects / etc / vim.git / blobdiff