WIP: Modernizing setup.

Summary

Replacing long deprecated tests_requires by a test extra.

Focus

Does the pipeline pass?

Test Environment

Pipeline.

Check List for the Author

Please, prepare your MR for a review. Be sure to write a summary and a focus and create gitlab comments for the reviewer. They should guide the reviewer through the changes, explain your changes and also point out open questions. For further good practices have a look at our review guidelines

• All automated tests pass
• Reference related issues
• Up-to-date CHANGELOG.md (or not necessary)
• Up-to-date JSON schema (or not necessary)
• Appropriate user and developer documentation (or not necessary)
  • How do I use the software? Assume "stupid" users.
  • How do I develop or debug the software? Assume novice developers.
• Annotations in code (Gitlab comments)
  • Intent of new code
  • Problems with old code
  • Why this implementation?

Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md (or not necessary)
• Appropriate user and developer documentation (or not necessary)
• The test environment setup works and the intended behavior is reproducible in the test environment
• In-code documentation and comments are up-to-date.
• Check: Are there specifications? Are they satisfied?

For further good practices have a look at our review guidelines.

.gitlab-ci.yml

@@ -70,8 +70,7 @@ unittest_py3.8:
   script: &python_test_script
     # Python docker has problems with tox and pip so use plain pytest here
     - touch ~/.pylinkahead.ini
-    - pip install pynose pytest pytest-cov jsonschema>=4.4.0 setuptools
-    - pip install .
+    - pip install .[test]
     - python -m pytest unittests
 
 # This needs to be changed once Python 3.9 isn't the standard Python in Debian