Improve tests
Cleanup checkcode $C Verify some error strings Create test_dummy2.save in tests (and remove from repo)
Related to !11 (closed), improves readability of tests and fixes a few things.
GitLab upgrade completed. Current version is 18.6.4
https://about.gitlab.com/releases/2025/11/20/gitlab-18-6-released/
Cleanup checkcode $C Verify some error strings Create test_dummy2.save in tests (and remove from repo)
Related to !11 (closed), improves readability of tests and fixes a few things.