add tests for after/until/before/since keywords

Summary

tests for caosdb-server!12 (merged) (Issue caosdb-server#132 (closed))

Focus

• One further test in test_query.py
• removed nose functions on the go

Test Environment

Nothing special. pipeline should be sufficient.

Check List for the Author

• All automated tests pass
• Reference related Issues
• Up-to-date CHANGELOG.md
• 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
• 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 spezifications? Are they satisfied?

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

CHANGELOG.md

@@ -24,6 +24,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   evaluated correctly.
 * Test for [caosdb-server#99](https://gitlab.com/caosdb/caosdb-server/-/issues/99).
 * Tests for retrieving older versions.
+* Tests for `BEFORE`, `AFTER`, `UNTIL`, `SINCE` keywords for query
+  transaction filters
+  [caosdb-server#132](https://gitlab.indiscale.com/caosdb/src/caosdb-server/-/issues/132)
 
 ### Changed (for changes in existing functionality)