Add code coverage for ToolStripContainerActionList

[Syareel-Sukeri]

Related #10773

Proposed changes

• Add unit test ToolStripContainerActionListTests.cs for public properties and method of the ToolStripContainerActionList.

Microsoft Reviewers: Open in CodeFlow

[codecov]

Codecov Report

Attention: Patch coverage is 97.10145% with 4 lines in your changes missing coverage. Please review.

Project coverage is 62.53133%. Comparing base (8ef1b9c) to head (9dfcc8e).
Report is 285 commits behind head on main.

Additional details and impacted files

@@                 Coverage Diff                  @@
##                main      #13256          +/-   ##
====================================================
- Coverage   75.97321%   62.53133%   -13.44188%     
====================================================
  Files           3265        1560        -1705     
  Lines         643286      159616      -483670     
  Branches       47431       14900       -32531     
====================================================
- Hits          488725       99810      -388915     
+ Misses        150991       59039       -91952     
+ Partials        3570         767        -2803     

Flag	Coverage Δ
Debug	62.53133% <97.10145%> (-9.92093%)	⬇️
integration	11.31915% <ø> (-6.69302%)	⬇️
production	40.70707% <ø> (-9.15860%)	⬇️
test	95.68655% <97.10145%> (-1.40762%)	⬇️
unit	38.10048% <ø> (-9.22454%)	⬇️

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[Copilot]

Copilot reviewed 1 out of 1 changed files in this pull request and generated no comments.

Comments suppressed due to low confidence (1)

src/System.Windows.Forms.Design/tests/UnitTests/System/Windows/Forms/Design/ToolStripContainerActionListTests.cs:163

• [nitpick] The expected display name 'Dock Fill in Form' in this test seems inconsistent with the 'Dock in Form' string used in another test. Consider aligning the naming conventions between tests for clarity and consistency.

displayNames.Should().ContainSingle(name => name == "Dock Fill in Form");

[LeafShi1]

LGTM with a little advice

[ricardobossan]

Thank you!

[Tanya-Solyanik]

Thank you, looks good, please keep lines under the 120 chars limit.

[LeafShi1]

src\System.Windows.Forms.Design\tests\UnitTests\System\Windows\Forms\Design\ToolStripContainerActionListTests.cs(160,50): error SA1028: (NETCORE_ENGINEERING_TELEMETRY=Build) Code should not contain trailing whitespace