def test_decrypt(self):
provider = StubProvider()
kf = KeyFile('asdf.txt')
kf._KeyFile__key = b'x' * 32
kf._get_provider = MagicMock(return_value=provider)
text = kf.decrypt(SecureValue('test', b'hello'))
provider.decrypt.assert_called_once_with(b'hello')
kf._get_provider.assert_called_once_with('test')
assert text == b'plaintext'
def test_decrypt_nokey(self):
kf = KeyFile('asdf.txt')
with pytest.raises(TypeError):
kf.decrypt(b'asdf')
