def test_no_cache_when_stdin(self) -> None:
mode = black.FileMode.AUTO_DETECT
with cache_dir():
result = CliRunner().invoke(black.main, ["-"], input="print('hello')")
self.assertEqual(result.exit_code, 0)
cache_file = black.get_cache_file(black.DEFAULT_LINE_LENGTH, mode)
self.assertFalse(cache_file.exists())
def test_no_cache_when_writeback_diff(self) -> None:
mode = black.FileMode.AUTO_DETECT
with cache_dir() as workspace:
src = (workspace / "test.py").resolve()
with src.open("w") as fobj:
fobj.write("print('hello')")
result = CliRunner().invoke(black.main, [str(src), "--diff"])
self.assertEqual(result.exit_code, 0)
cache_file = black.get_cache_file(black.DEFAULT_LINE_LENGTH, mode)
self.assertFalse(cache_file.exists())
def test_no_cache_when_writeback_diff(self) -> None:
mode = black.FileMode.AUTO_DETECT
with cache_dir() as workspace:
src = (workspace / "test.py").resolve()
with src.open("w") as fobj:
fobj.write("print('hello')")
result = CliRunner().invoke(black.main, [str(src), "--diff"])
self.assertEqual(result.exit_code, 0)
cache_file = black.get_cache_file(black.DEFAULT_LINE_LENGTH, mode)
self.assertFalse(cache_file.exists())
def test_cache_broken_file(self) -> None:
with cache_dir() as workspace:
cache_file = black.get_cache_file(black.DEFAULT_LINE_LENGTH)
with cache_file.open("w") as fobj:
fobj.write("this is not a pickle")
self.assertEqual(black.read_cache(black.DEFAULT_LINE_LENGTH), {})
src = (workspace / "test.py").resolve()
with src.open("w") as fobj:
fobj.write("print('hello')")
result = CliRunner().invoke(black.main, [str(src)])
self.assertEqual(result.exit_code, 0)
cache = black.read_cache(black.DEFAULT_LINE_LENGTH)
self.assertIn(src, cache)
def test_cache_broken_file(self) -> None:
mode = black.FileMode.AUTO_DETECT
with cache_dir() as workspace:
cache_file = black.get_cache_file(black.DEFAULT_LINE_LENGTH, mode)
with cache_file.open("w") as fobj:
fobj.write("this is not a pickle")
self.assertEqual(black.read_cache(black.DEFAULT_LINE_LENGTH, mode), {})
src = (workspace / "test.py").resolve()
with src.open("w") as fobj:
fobj.write("print('hello')")
result = CliRunner().invoke(black.main, [str(src)])
self.assertEqual(result.exit_code, 0)
cache = black.read_cache(black.DEFAULT_LINE_LENGTH, mode)
self.assertIn(src, cache)
def test_no_cache_when_stdin(self) -> None:
with cache_dir():
result = CliRunner().invoke(black.main, ["-"], input="print('hello')")
self.assertEqual(result.exit_code, 0)
cache_file = black.get_cache_file(black.DEFAULT_LINE_LENGTH)
self.assertFalse(cache_file.exists())
def _uncache():
cache = black.get_cache_file(black.DEFAULT_LINE_LENGTH, black.FileMode.AUTO_DETECT)
if cache.exists():
cache.unlink()
