No self use issue fix

[vil02]

Description

Fixes issue #1902. I also replaced "naked" assert with self.assertEqual, self.assertIsInstance etc. in some of the tests.

Is this related to any open issue(s)?

fixes #1902

Is there anything you need help with to get this PR merged?

...

Checklist

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• The CI is passing
• I tested my implementation manually
• I wrote new tests to test my code, or updated existing tests to test my changes

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0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[kantord]

thanks @vil02 ! I'll try to check it out as soon as I have time.

[kantord]

Looks good to me! Thanks @vil02 !

btw the best ideal solution would be to get rid of those test case classes completely and use proper pytest style.

Of course that needs not to be in the context if this merge request, hence I approve and merge this!

Nevertheless if you are looking for the next challenge, you could do that one!

[kantord]

@allcontributors please add @vil02

[allcontributors]

@kantord

I couldn't determine any contributions to add, did you specify any contributions?
Please make sure to use valid contribution names.

[kantord]

@allcontributors please add @vil02 for code

[allcontributors]

@kantord

I've put up a pull request to add @vil02! 🎉