def test_publish_flattened_error():
    client = PublisherClient(credentials=credentials.AnonymousCredentials(), )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.publish(
            pubsub.PublishRequest(),
            topic='topic_value',
            messages=[pubsub.PubsubMessage(data=b'data_blob')],
        )
def test_publish(transport: str = 'grpc'):
    client = PublisherClient(
        credentials=credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Everything is optional in proto3 as far as the runtime is concerned,
    # and we are mocking out the actual API, so just send an empty request.
    request = pubsub.PublishRequest()

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(type(client._transport.publish),
                           '__call__') as call:
        # Designate an appropriate return value for the call.
        call.return_value = pubsub.PublishResponse(
            message_ids=['message_ids_value'], )

        response = client.publish(request)

        # Establish that the underlying gRPC stub method was called.
        assert len(call.mock_calls) == 1
        _, args, _ = call.mock_calls[0]

        assert args[0] == request

    # Establish that the response is the type that we expect.
    assert isinstance(response, pubsub.PublishResponse)
    assert response.message_ids == ['message_ids_value']
def test_publish_flattened():
    client = PublisherClient(credentials=credentials.AnonymousCredentials(), )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(type(client._transport.publish),
                           '__call__') as call:
        # Designate an appropriate return value for the call.
        call.return_value = pubsub.PublishResponse()

        # Call the method with a truthy value for each flattened field,
        # using the keyword arguments to the method.
        response = client.publish(
            topic='topic_value',
            messages=[pubsub.PubsubMessage(data=b'data_blob')],
        )

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(call.mock_calls) == 1
        _, args, _ = call.mock_calls[0]
        assert args[0].topic == 'topic_value'
        assert args[0].messages == [pubsub.PubsubMessage(data=b'data_blob')]