test(byoid): File and URL integration tests for 3rd Party access to Google Client Libraries (#983)
test(byoid): File and URL integration tests for 3rd Party access to Google Client Libraries (#983)

- Update instructions for manually running the tests.
- Add new test.

google/google-api-go-client,googleapis/google-api-go-client,google/google-api-go-client,googleapis/google-api-go-client