4.x: Unit test lambdaification 11 of N

[akarnokd]

Will go over the unit tests in ASCII order of the classpath and classes.

Search regexp: new\s+\w+(?:\s*<(?:[\s\w<>(\[\])?,.?]|\s*<[\s\w<>(\[\])?,.?]*>)*>)?\s*\([^)]*\)\s*\{

/* NFI */ = Not Functional Interface so break the regexp pattern

If you complain instead of proposing a PR about "why not convert to method references" you'll be banned.

Related: #8080

[github-actions]

🐷 TruffleHog + Entropy Beauty Scan

Average entropy of changed code: 4.702 bits/char
Verdict: ⚠️ Consider review — entropy outside sweet spot

Changed files entropy:

src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableDelayTest.java: 4.748
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableDematerializeTest.java: 4.753
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableDetachTest.java: 4.795
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableDistinctTest.java: 4.787
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableDistinctUntilChangedTest.java: 4.847
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableDoAfterNextTest.java: 4.795
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableDoFinallyTest.java: 4.618
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableDoOnEachTest.java: 4.626
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableDoOnLifecycleTest.java: 4.704
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableDoOnRequestTest.java: 4.464
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableDoOnSubscribeTest.java: 4.844
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableDoOnUnsubscribeTest.java: 4.565
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableElementAtTest.java: 4.636
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableFilterTest.java: 4.607
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableFirstTest.java: 4.695
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableFlatMapCompletableTest.java: 4.683
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableFlatMapMaybeTest.java: 4.753
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableFlatMapSingleTest.java: 4.767
src/test/java/io/reactivex/rxjava4/internal/operators/flowable/FlowableFlatMapTest.java: 4.640

✅ No secrets or suspicious high-entropy strings found.

Mid-4 beauty heuristic in action — powered by our entropy chats! 😊

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.78%. Comparing base (853b4f6) to head (294e0cc).

Additional details and impacted files

@@             Coverage Diff              @@
##                4.x    #8147      +/-   ##
============================================
- Coverage     98.79%   98.78%   -0.02%     
  Complexity     6874     6874              
============================================
  Files           769      769              
  Lines         48659    48659              
  Branches       6516     6516              
============================================
- Hits          48075    48069       -6     
- Misses          451      453       +2     
- Partials        133      137       +4     

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