rewrite flaky broker_deleted_recreated

[maschmid]

Fixes a flaky BrokerDeletedRecreated test,

the current implementation is not guaranteed to succeed, as it is not defined when the dataplane will reconfigure itself once the old trigger is deleted, so it may sometimes occur, that the new event is still sent to the fist sink, and not the new one.

This new implementation checks that eventually, a sequence is only being received by the other sink.

This approach requires new kinds of assertions about a sequence, instead of just individual events received/not received, hence there is a proposal for some kind of a DSL for assertions over such sequences...

I am not quite sure this kind of DSL is a good idea or if it would be useful in other scenarios, so I could also just rewrite this with just a single one-purpose function instead, if we think there's not much value in it...

Proposed Changes

• 🧹 Fix a flaky BrokerDeletedRecreated

[knative-prow]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 45.53%. Comparing base (6235e66) to head (70f852e).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4175   +/-   ##
=======================================
  Coverage   45.53%   45.53%           
=======================================
  Files         270      270           
  Lines       19925    19925           
=======================================
  Hits         9072     9072           
  Misses      10127    10127           
  Partials      726      726           

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[maschmid]

/retest-required

[knative-prow]

@maschmid: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
upgrade-tests_eventing-kafka-broker_main	70f852e	link	true	/test upgrade-tests
reconciler-tests_eventing-kafka-broker_main	70f852e	link	true	/test reconciler-tests

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