Unstable unit test: System.Windows.Forms.Tests.ToolStripTests.ToolStrip_WndProc_InvokeMouseActivateWithHandle_Success

[LeafShi1]

Related #11227

Test

System.Windows.Forms.Tests.ToolStripTests.ToolStrip_WndProc_InvokeMouseActivateWithHandle_Success

Issue description

The case failed in X64 and X86 unit tests, the failure link:

• #20240501.11 • Update branding to 6.0.31 (#11302)
• #20240513.6 • [main] Update dependencies from dotnet/runtime (#11364)

Error Message:

• Assert.Equal() Failure Expected: 0 Actual: 2

Stack trace:

  at System.Windows.Forms.Tests.ToolStripTests.ToolStrip_WndProc_InvokeMouseActivateWithHandle_Success() 
in /_/src/System.Windows.Forms/tests/UnitTests/System/Windows/Forms/ToolStripTests.cs:line 7169
  at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
  at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)