Method test_cache_single_file_already_cached

tests/test_black.py:2233–2241

(self)

            assert not cache.is_changed(src)

    def test_cache_single_file_already_cached(self) -> None:
        mode = DEFAULT_MODE
        with cache_dir() as workspace:
            src = (workspace / "test.py").resolve()
            src.write_text("print('hello')", encoding="utf-8")
            cache = black.Cache.read(mode)
            cache.write([src])
            invokeBlack([str(src)])
            assert src.read_text(encoding="utf-8") == "print('hello')"

    @event_loop()
    def test_cache_multiple_files(self) -> None: