test(pubsub): add subscriber sample using into_stream()

[haphungw]

For #4574

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.02%. Comparing base (4662c64) to head (8d6298e).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4592      +/-   ##
==========================================
+ Coverage   95.01%   95.02%   +0.01%     
==========================================
  Files         195      195              
  Lines        7458     7464       +6     
==========================================
+ Hits         7086     7093       +7     
+ Misses        372      371       -1     

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[coryan]

If this is blocking some other work, merge and we can iterate. Otherwise it may need to work until Monday, I am about to stop working.

[dbolduc]

merge

We should get #4590 in first, then rebase this PR on top of that one.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.01%. Comparing base (90bb237) to head (53c2306).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4592   +/-   ##
=======================================
  Coverage   95.01%   95.01%           
=======================================
  Files         196      196           
  Lines        7525     7525           
=======================================
  Hits         7150     7150           
  Misses        375      375           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[dbolduc]

FYI: when a PR is doing two things, you block both things on each other. I am happy to review such PRs, but you will find that life is easier doing one thing at a time.

I would probably:

1. add the subscriber_stream() test in this PR + the sample.
2. refactor to consolidate the test runners in a follow up PR (because that half of things is less obvious)

Up to you though.

[dbolduc]

Maybe remove the region tag until we are ready to use the sample somewhere?

[dbolduc]

I think the two comments are not helping us, but other than that LGTM

[dbolduc]

Aaarrrggh I think my changes from #4648 messed up the diff for this PR. My bad. Can you rebase and fix the conflicts 😬 ?