Add test on DefaultClearCacheUseCase

[bmarty]

Add a few missing test and move some classes to test modules.

[github-actions]

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[codecov]

Codecov Report

Attention: Patch coverage is 93.33333% with 1 line in your changes missing coverage. Please review.

Project coverage is 75.80%. Comparing base (c7672ab) to head (9349f1b).

Files	Patch %	Lines
...ment/android/features/ftue/test/FakeFtueService.kt	75.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3044      +/-   ##
===========================================
+ Coverage    75.73%   75.80%   +0.07%     
===========================================
  Files         1613     1615       +2     
  Lines        38090    38106      +16     
  Branches      7350     7351       +1     
===========================================
+ Hits         28846    28888      +42     
+ Misses        5403     5373      -30     
- Partials      3841     3845       +4     

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[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud