Add Code Coverage For ToolStrip

[Zheng-Li01]

related #10453

Proposed changes

• Add unit tests for ToolStrip to test its properties: Visible, Size, BackgroundImage, CausesValidation, ContextMenuStrip, CausesValidation, Cursor, ForeColor
• Add unit tests for ToolStrip to test its methods: Compare(), Show()
• Add unit tests for ToolStrip to test its events: DockChanged, BackColorChanged, BackgroundImageChanged, BackgroundImageLayoutChanged, BottomToolStripPanelVisible,CausesValidationChanged, ContextMenuStripChanged, CursorChanged

Microsoft Reviewers: Open in CodeFlow

[codecov]

Codecov Report

Attention: Patch coverage is 99.58159% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 74.39993%. Comparing base (3ba919b) to head (324fd5c).
Report is 41 commits behind head on main.

Additional details and impacted files

@@                 Coverage Diff                 @@
##                main      #11464         +/-   ##
===================================================
+ Coverage   74.27644%   74.39993%   +0.12349%     
===================================================
  Files           3026        3029          +3     
  Lines         626966      627760        +794     
  Branches       46753       46770         +17     
===================================================
+ Hits          465688      467053       +1365     
+ Misses        157924      157364        -560     
+ Partials        3354        3343         -11     

Flag	Coverage Δ
Debug	74.39993% <99.58159%> (+0.12349%)	⬆️
integration	17.99707% <ø> (+0.00361%)	⬆️
production	47.22237% <ø> (+0.21540%)	⬆️
test	96.98853% <99.58159%> (+0.00075%)	⬆️
unit	44.17959% <ø> (+0.19375%)	⬆️

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[lonitra]

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