def test_autoselection(self):
x = self.create_filestorage_hash("hash")
x.fs.store([Record(["", ""])])
with open(x.tempfile + ".checksum", "r") as fp:
data = fp.read()
bitness = HashHook._bitness()
self.assertIn(bitness, [32, 64])
self.assertTrue(data.startswith("sha512" if bitness == 64 else "sha256"))
x.tempdir.cleanup()
