Alter test to avoid mypy error

[marcpaterno]

Description

mypy 1.18.1 is complaining about comparison of Enum aliases using is.
The use of is is actually correct, but since mypy is now complaining about it, this PR changes the test to use == instead.

Type of change

• Bug fix (non-breaking change which fixes an issue)

Checklist:

The following checklist will make sure that you are following the code style and
guidelines of the project as described in the
contributing page.

• I have run bash pre-commit-check and fixed any issues
• I have added tests that prove my fix is effective or that my feature works
• I have made corresponding changes to the documentation
• I have 100% test coverage for my changes (please check this after the CI system has verified the coverage)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.0%. Comparing base (4616cb2) to head (33a2b8a).
⚠️ Report is 108 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #546   +/-   ##
=======================================
  Coverage   100.0%   100.0%           
=======================================
  Files          49       49           
  Lines        4973     4973           
  Branches      564      564           
=======================================
  Hits         4973     4973           

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