update namespace pytest, make model weights not be all zeros

[jmitrevs]

Description

The pytest for namespaces actually did not actually set namespaces. This is pytest bug-fix. I also made the default model not have all 0 weights, which could potentially hide problems

Type of change

• Bug fix (non-breaking change that fixes an issue)
• Other (Specify) - test fix

Tests

This updates already existing tests that were not making the appropriate test.

Checklist

• I have read the guidelines for contributing.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• I have installed and run pre-commit on the files I edited or added.
• I have added tests that prove my fix is effective or that my feature works.