def test_cache_roundtrip(self, cache_tmpdir: Path) -> None:
cache = SafeFileCache(cache_tmpdir)
assert cache.get("test key") is None
cache.set("test key", b"a test string")
assert cache.get("test key") == b"a test string"
cache.delete("test key")
assert cache.get("test key") is None
def test_safe_delete_no_perms(self, cache_tmpdir: Path) -> None:
os.chmod(cache_tmpdir, 000)
cache = SafeFileCache(cache_tmpdir)
cache.delete("foo")