EP Merge: Wait for EP400 contentions

[dfitchett]

What was the problem?

Contentions are not available immediately upon receipt of a merge requests.

Associated tickets or Slack threads:

• EP Merge: Address issue with EP400 contentions not being available immediately #2699
• slack thread

How does this fix it?¹

Changes allow retrying to get the contentions every 2 seconds for up to a minute.

How to test this PR

• pull code
• Unit Test:
  • from /domain-ee/ee-ep-merge-app run pytest
• Integration Tests:
  • run base platform
  • from /domain-ee/ee-ep-merge-app run pytest ./integration
• End to End tests:
  • run this CI action to verify successful integration test
  • run end to end tests locally:
    • export BIP_CLAIM_URL=mock-bip-claims-api:20300
    • run bgs and bip services and mocks:
      • COMPOSE_PROFILES="bip,bgs" ./gradlew :app:dockerComposeUp
      • COMPOSE_PROFILES="bip,bgs" ./gradlew -p mocks :dockerComposeUp
    • ./gradlew :domain-ee:ee-ep-merge-app:endToEndTest

Footnotes

1. Pull-Requests guidelines. If PR is significant, update Current Software State wiki page. ↩

[github-actions]

Test Results

149 tests  ±0   149 ✅ ±0   47s ⏱️ -1s
 39 suites ±0     0 💤 ±0 
 39 files   ±0     0 ❌ ±0 

Results for commit f17dc5f. ± Comparison against base commit ac8b5d4.

♻️ This comment has been updated with latest results.

[github-actions]

JaCoCo Test Coverage

Overall Project	76.44%	❌

There is no coverage information present for the Files changed

[agile-josiah]

LGTM

[nanotone]

Good stuff! Just a few suggestions.

[nanotone]

I noticed you left some occurrences of retry_rate; wanna rename them all while you're at it? Also open to keeping this as-is if you had a reason.

Anyway, approving this 👍