for testing of 15.0

[rchenatjpl]

Added tests. Modified tests. Added features/integration.feature for fast testing

🗒️ Summary

Brief summary of changes if not sufficiently described by commit messages.

⚙️ Test Data and/or Report

One of the following should be included here:

• Reference to regression test included in code (preferred wherever reasonable)
• Attach test data here + outputs of tests

♻️ Related Issues