test: add pytest and code coverage configuration in pyproject.toml

[ParagEkbote]

Description

As described in the issue, I have added the pytest configuration as well the code coverage configuration to get better output and verbosity when the tests are executed.

Could you please review?

cc: @johannaSommer

Related Issue

Fixes #228

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[johannaSommer]

Looks already good to me! I have just one quick question on the markers :)

[johannaSommer]

In this case could we remove the markers from the conftest.py?

[ParagEkbote]

No, the markers need to be present in conftest.py that provide reusable setup/teardown logic for tests. We have defined the markers here to maintain a reference of all the markers available. We could remove them if needed.

[davidberenstein1957]

@ParagEkbote, should we remove markers from here? It would be difficult to maintain them in two different places.

[ParagEkbote]

It makes sense. @davidberenstein1957

I've removed them. Could you please review?

[davidberenstein1957]

@ParagEkbote thanks again for the lovely PR! They are really welcome :)