Add a BDD test suite for OpenStack Instance resources (Image create and delete from OpenStack Instance)

@nakamurarts

Thank you for adding the test scenario. I ran the BDD tests and it worked fine. I'll merge the patch to 5.x and 6.x, and close this issue as Fixed.

@nakamurarts

On my second thought, the test scenario can be refactored. I posted my comments. Thanks!

@yas

Thank you for your review.
Please check back as I have revised it according to your suggestion.

@nakamurarts

Thank you for the update. I ran the BDD tests, which have been passed successfully. I'll merge the patch to 5.x and 6.x, and close this issue as Fixed.

Automatically closed - issue fixed for 2 weeks with no activity.