Unit test coverage for the PropertyGrid class

[LeafShi1]

Currently the unit test coverage of the PropertyGrid is 49.91%

The following code lacks unit test coverage. For details, please refer to Code Coverage

The code line under Constructor:

• if (ScaleHelper.IsThreadPerMonitorV2Aware)
• catch (Exception ex) when (!ex.IsCriticalException())

Functions:

• PropertyGrid
• AddTab Add test cases for PropertyGrid.AddTab #14574
• CollapseAllGridItems
• ClearTabs
• CreateGridView if (_inGridViewCreate)
• CreateTab
• DisplayCommandsPane
• Dispose if (GetFlag(Flags.GotDesignerEventService))
• DividerDraw if (y == -1)
• DividerInside
• DividerLimitHigh
• DrawXorBar
• EnablePropPageButton
• EnableTabs
• EnsureLargeButtons
• AddLargeImage
• EnsurePendingChangesCommitted
• ExpandAllGridItems
• GetCommonTabs
• GetElementFromPoint
• GetUnwrappedObject
• GetCurrentEntries
• DropDownDone
• HandleF4
• SaveState
• LoadState
• OnActiveDesignerChanged
• OnChanged
• OnChildMouseMove
• OnChildMouseDown
• OnComponentAdded
• OnComponentChanged
• OnComponentRemoved Add tests for PropertyGrid.OnComponentRemoved #14561
• OnFontChanged
• OnGotFocus
• ScaleCore
• OnLayoutInternal
• OnMouseMove
• OnMouseUp
• OnRequestEdit
• OnComComponentNameChanged
• OnNotifyPropertyValueUIItemsChanged
• OnPaint if (_commandsPane.Visible)
• OnPropertyValueSet
• OnTransactionClosed
• OnTransactionOpened
• OnTypeDescriptorRefreshed
• OnTypeDescriptorRefreshedInvoke
• OnViewPropertyPagesButtonClick
• ProcessDialogKey
• Refresh if (GetFlag(Flags.RefreshingProperties))
• Refresh(bool clearCached) if (Disposing || GetFlag(Flags.RefreshingProperties))
• RefreshTabs
• ReleaseTab
• RemoveTabs(PropertyTabScope classification, bool setupToolbar)
• RemoveTab(int tabIndex, bool setupToolbar)
• RemoveTab(Type tabType) if (tabIndex == -1)
• ResetHelpBackColor Fixes PropertyGrid.ResetHelpForeColor resets the back color instead of the fore color #14572
• ResetHelpForeColor Fixes PropertyGrid.ResetHelpForeColor resets the back color instead of the fore color #14572
• ReplaceSelectedObject
• TryGetSavedTabIndex if (_designerSelections is null || ActiveDesigner is null)
• SelectViewTabButtonDefault
• SetSelectState
• SetupToolbar
• ShowEventsButton
• SinkPropertyNotifyEvents
• ShouldForwardChildMouseMessage
• UpdatePropertiesViewTabVisibility
• UpdateSelection
• WantsTab
• RescaleConstants
• WndProc

Properties:

• ActiveDesigner if (_rootEntry is not null)
• CanCopy
• CanCut
• CanPaste
• CanUndo
• CommandsVisibleIfAvailable if (hotcommandsVisible != _commandsPane.Visible)
• FreezePainting get => _paintFrozen > 0;
• GridViewVisible
• PropertySort if (selectedGridItem is not null)
• SelectedObjects Set method
• SortedByCategories
• ToolStripRenderer Get method
• IComPropertyBrowser.ComComponentNameChanged
• PropertyTabChanged Remove method
• SelectedGridItemChanged Remove method
• InPropertySet
• UseCompatibleTextRendering Set method