4.x: Unit test lambdaification 14 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: 4.606 bits/char
Verdict: ✅ Mid-4 beauty detected (thoughtful human code!)

Changed files entropy:

src/main/java/io/reactivex/rxjava4/core/Flowable.java: 4.779
src/main/java/io/reactivex/rxjava4/core/Observable.java: 4.758
src/main/java/io/reactivex/rxjava4/core/Scheduler.java: 4.531
src/main/java/io/reactivex/rxjava4/core/config/ParallelSchedulerConfig.java: 4.659
src/main/java/io/reactivex/rxjava4/internal/schedulers/BlockingCurrentThreadScheduler.java: 4.271
src/main/java/io/reactivex/rxjava4/internal/schedulers/CachedScheduler.java: 4.725
src/main/java/io/reactivex/rxjava4/internal/schedulers/ComputationScheduler.java: 4.710
src/main/java/io/reactivex/rxjava4/internal/schedulers/NewThreadScheduler.java: 5.079
src/main/java/io/reactivex/rxjava4/internal/schedulers/ParallelScheduler.java: 4.246
src/main/java/io/reactivex/rxjava4/internal/schedulers/SchedulerPoolFactory.java: 4.797
src/main/java/io/reactivex/rxjava4/internal/schedulers/SharedScheduler.java: 4.316
src/main/java/io/reactivex/rxjava4/internal/schedulers/SingleScheduler.java: 4.603
src/main/java/io/reactivex/rxjava4/schedulers/BlockingScheduler.java: 4.739
src/main/java/io/reactivex/rxjava4/schedulers/Schedulers.java: 4.730
src/test/java/io/reactivex/rxjava4/core/SchedulerTest.java: 5.033
src/test/java/io/reactivex/rxjava4/internal/schedulers/BlockingSchedulerTest.java: 3.882
src/test/java/io/reactivex/rxjava4/internal/schedulers/ParallelSchedulerTest.java: 4.565
src/test/java/io/reactivex/rxjava4/internal/schedulers/SharedSchedulerTest.java: 4.485

✅ 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 98.74%. Comparing base (7c9661e) to head (979dc75).

Additional details and impacted files

@@             Coverage Diff              @@
##                4.x    #8155      +/-   ##
============================================
- Coverage     98.76%   98.74%   -0.03%     
+ Complexity     6939     6938       -1     
============================================
  Files           773      773              
  Lines         48990    48990              
  Branches       6586     6586              
============================================
- Hits          48387    48373      -14     
- Misses          449      455       +6     
- Partials        154      162       +8     

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