Method one

tests/_save/test_cache.py:276–288

()

        @app.cell
        def one() -> tuple[int]:
            # Check top level import
            from marimo import persistent_cache
            from tests._save.loaders.mocks import MockLoader

            with persistent_cache(name="one", _loader=MockLoader()) as cache:
                Y = 8
                X = 7
            assert X == 7
            assert cache._cache.defs == {"X": 7, "Y": 8}
            assert cache.loader._saved
            assert not cache.loader._loaded
            return X, Y, persistent_cache

        # Coverage's trace override conflicts with cache introspection. Letting
        # the first test fail seems to fix this issue.