def METHOD_NAME(self):
    with self.assertRaises(ValueError):
        validate_encryption_source(
            Namespace(encryption_key_source='Microsoft.Keyvault', encryption_key_name=None,
                      encryption_key_version=None, encryption_key_vault=None, _cmd=MockCmd(self.cli)))
    with self.assertRaises(ValueError):
        validate_encryption_source(
            Namespace(encryption_key_source='Microsoft.Storage', encryption_key_name='key_name',
                      encryption_key_version='key_version', encryption_key_vault='https://example.com/key_uri'))