Implement eventual consistency for flaky tests

[jeromegamez]

No description provided.

[Copilot]

Pull request overview

Adds a reusable “eventual consistency” assertion helper for integration tests and applies it to previously flaky test cases (Messaging topic subscriptions and AppCheck replay protection) to reduce timing-related failures.

Changes:

• Introduces IntegrationTestCase::assertEventually() to retry a boolean condition until a timeout.
• Updates Messaging AppInstance topic subscription assertions to wait until expected subscription state is observed.
• Refactors AppCheck replay-protection verification test to use assertEventually() instead of an ad-hoc retry loop.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
tests/IntegrationTestCase.php	Adds assertEventually() helper used to wait for eventually consistent state in integration tests.
tests/Integration/Messaging/AppInstanceTest.php	Replaces immediate subscription assertions with a helper that retries until expected topic subscription states are visible.
tests/Integration/AppCheckTest.php	Refactors replay-protection verification to use assertEventually() for eventual visibility of consumption state.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

@@             Coverage Diff              @@
##               8.x    #1110       +/-   ##
============================================
+ Coverage     1.67%   40.10%   +38.43%     
  Complexity    1486     1486               
============================================
  Files          146      146               
  Lines         4187     4174       -13     
============================================
+ Hits            70     1674     +1604     
+ Misses        4117     2500     -1617