feat(storage): add integration test for universe domain

[shubhangi-google]

Adding integration tests for Universe Domain feature
these tests will run with test project credentials

[bajajneha27]

@shubhangi-google the acceptance test is failing, can you please check?

[shubhangi-google]

@shubhangi-google the acceptance test is failing, can you please check?

hi @bajajneha27
earlier kokoro was failing with a test failure now after resubmitting the PR
it is failing with- There was insufficient space
https://btx.cloud.google.com/invocations/10d0b291-1669-48fb-9bc6-fa5037342fc2/targets/cloud-devrel%2Fclient-libraries%2Fgoogle-cloud-ruby%2Fpresubmit%2Facceptance/log

please suggest how to proceed

[bajajneha27]

The integration test is still failing. Can you please check?

[shubhangi-google]

Hi @JesseLovelace
Need your suggestions for following

1. Please suggest the best way to set system environment variables. I’ve attempted to include the export script to set the environment variables in integration.sh, but the Kokoro tests are not picking them up, leading to test failures. As a workaround, I’ve been executing the bash script in the code to set the environment variables.

2. There’s an issue with the test that checks the bucket location—it’s consistently getting nil for the TEST_UNIVERSE_LOCATION environment variable, causing the check to fail. For now, I’ve removed the check to avoid blocking the tests.

Could you please guide me on how to address these issues?

[danielduhh]

@dazuma do you have a preference in how the secrets are handled for Ruby?