publish test results

SUMMARY

• Describe your changes, including rationale and design decisions
  report errors better in junit
  publish junit results in CI

no functional chnages in this PR

there are a coupe of chnages

• using the junit APIs to gett a better failure message whenthere is an issue, an some code compaction
• changing the workflow to generate test artifacts, and publish then the the PR results - this makes the viewing of the errors easier. This chnage works in 2 halves, the publish and the render (which is in the post* workflows)
  Unfortunately the post workflows only run in the main branch, so I cand demo then in this PR

Automated Checks

• I have run ./gradlew test and made sure that my PR does not break any unit test.