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.

assigned to @daniel

changed the description

added 5 commits

• 5449a726...f56681fc - 4 commits from branch dev
• c5a51e45 - Merge branch 'dev' into f-test-requirements

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requested review from @i.nueske

marked the checklist item I understand the intent of this MR as completed

marked the checklist item All automated tests pass as completed

added 1 commit

• 2b649e0f - DOC: Changelog.

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mentioned in issue #208 (closed)

marked the checklist item Up-to-date CHANGELOG.md (or not necessary) as completed

marked the checklist item The test environment setup works and the intended behavior is reproducible in the test as completed

marked the checklist item In-code documentation and comments are up-to-date. as completed

marked the checklist item Check: Are there specifications? Are they satisfied? as completed

added 20 commits

• 2b649e0f...6a9d6561 - 19 commits from branch dev
• 8eb506fb - Merge branch 'dev' into f-test-requirements

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added 1 commit

• 7309b0c0 - DOC: Document pip extras in README_SETUP.md

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added 1 commit

• 7ebf0caa - DOC: Move python installation into optional section

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marked the checklist item Appropriate user and developer documentation (or not necessary) as completed

approved this merge request

added 1 commit

• c1dd2b8b - DOC: Update pip commands, and remove git link

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reset approvals from @i.nueske by pushing to the branch

approved this merge request