Fixes #3077 : Report unused stubbing exceptions when test filter is no-op

[C0urante]

Fixes #3077

Summary

Adds granularity to the logic that skips reporting of unused stubbings when tests are filtered. Instead of simply detecting the use of any kind of filter, intercepts uses of that filter and only skips reporting of unused stubbings when the filter actually prevents one or more tests from being run.

This allows filters (such as JUnit category excludes, which themselves can be used to separate unit and integration tests) to be applied during a test run without sacrificing the benefits of strict stubbing.

Testing coverage is added for this newly-handled case (i.e., when a filter does not prevent any tests from being run), as well as existing cases (i.e., when a filter does prevent at least one test from being run).

Checklist

• Read the contributing guide
• PR should be motivated, i.e. what does it fix, why, and if relevant how
• If possible / relevant include an example in the description, that could help all readers
  including project members to get a better picture of the change
• Avoid other runtime dependencies
• Meaningful commit history ; intention is important please rebase your commit history so that each
  commit is meaningful and help the people that will explore a change in 2 years
• The pull request follows coding style
• Mention Fixes #<issue number> in the description if relevant
• At least one commit should mention Fixes #<issue number> if relevant

[codecov-commenter]

Codecov Report

Patch coverage: 87.50% and project coverage change: +0.48% 🎉

Comparison is base (f5ad9e9) 84.97% compared to head (c9339f1) 85.46%.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #3078      +/-   ##
============================================
+ Coverage     84.97%   85.46%   +0.48%     
- Complexity     2874     2889      +15     
============================================
  Files           329      329              
  Lines          8801     8813      +12     
  Branches       1093     1094       +1     
============================================
+ Hits           7479     7532      +53     
+ Misses         1045      994      -51     
- Partials        277      287      +10     

Files Changed	Coverage Δ
...ava/org/mockito/internal/runners/StrictRunner.java	93.10% <87.50%> (-1.02%)	⬇️

... and 8 files with indirect coverage changes

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[TimvdLippe]

Thanks!

[C0urante]

Thanks @TimvdLippe!