Decouple tests from default metadata

[jkirk5]

Desired capability or behavior.

With the introduction of the get_options_default() utility, values that are being passed to tests are now tied to the default values in the variable metadata. This could cause major issues where if a default ever needs to be changed, all tests downstream could potentially break or start producing different values.

Is your feature request related to a problem? Please describe.

No response

Associated Bug Report

No response

[jkirk5]

This has been set as a high priority because it prevents us from considering new default values for Aviary, which is a longstanding topic we haven't been able to address yet