def test_init_invalid_auth(self):
        """Ensures that ValueError is raised when auth signer is invalid."""
        with pytest.raises(ValueError):
            BaseClient(endpoint=self.endpoint, auth={"signer": None})
Ensures that ValueError is raised when auth signer is invalid.
llama-index-integrations/embeddings/llama-index-embeddings-oci-data-science/tests/test_oci_data_science_client.py