Method test_write_cache_write_fail

tests/test_black.py:2462–2468

(self)

            assert not cache.is_changed(clean)

    def test_write_cache_write_fail(self) -> None:
        mode = DEFAULT_MODE
        with cache_dir():
            cache = black.Cache.read(mode)
            with patch.object(Path, "open") as mock:
                mock.side_effect = OSError
                cache.write([])

    def test_read_cache_line_lengths(self) -> None:
        mode = DEFAULT_MODE