ILSpy/ILSpy.Tests/Analyzers/AnalyzerPaneRemoveTests.cs

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using System.Linq;
using System.Threading.Tasks;

using Avalonia.Headless.NUnit;

using AwesomeAssertions;

using ICSharpCode.ILSpyX.TreeView;

using ICSharpCode.ILSpy;
using ICSharpCode.ILSpy.Analyzers;
using ICSharpCode.ILSpy.AppEnv;
using ICSharpCode.ILSpy.TreeNodes;
using ICSharpCode.ILSpy.ViewModels;
using ICSharpCode.ILSpy.Views;

using NUnit.Framework;

namespace ICSharpCode.ILSpy.Tests.Analyzers;

[TestFixture]
public class AnalyzerPaneRemoveTests
{
	[AvaloniaTest]
	public async Task Remove_Entry_Is_Visible_Only_For_Top_Level_Analysed_Entities()
	{
		var (_, vm) = await TestHarness.BootAsync();

		var registry = AppComposition.Current.GetExport<ContextMenuEntryRegistry>();
		var entry = registry.Entries
			.Single(e => e.Metadata.Header == "Remove"
				&& e.Value is RemoveAnalyzeContextMenuEntry)
			.Value;

		var typeNode = vm.AssemblyTreeModel.FindNode<TypeTreeNode>(
			"System.Linq", "System.Linq", "System.Linq.Enumerable");
		var analyzerVm = AppComposition.Current.GetExport<AnalyzerTreeViewModel>();
		var added = analyzerVm.Analyze((ICSharpCode.Decompiler.TypeSystem.IEntity)typeNode.Member!);
		TestCapture.Step("entity-analysed");

		entry.IsVisible(new TextViewContext { SelectedTreeNodes = new SharpTreeNode[] { added } })
			.Should().BeTrue("Remove applies to top-level analysed entities");

		entry.IsVisible(new TextViewContext { SelectedTreeNodes = new SharpTreeNode[] { typeNode } })
			.Should().BeFalse("Remove must not surface on the assembly tree");
	}

	[AvaloniaTest]
	public async Task Remove_Execute_Drops_The_Selected_Root_Children()
	{
		var (_, vm) = await TestHarness.BootAsync();

		var registry = AppComposition.Current.GetExport<ContextMenuEntryRegistry>();
		var entry = registry.Entries
			.Single(e => e.Metadata.Header == "Remove"
				&& e.Value is RemoveAnalyzeContextMenuEntry)
			.Value;

		var typeNode = vm.AssemblyTreeModel.FindNode<TypeTreeNode>(
			"System.Linq", "System.Linq", "System.Linq.Enumerable");
		var analyzerVm = AppComposition.Current.GetExport<AnalyzerTreeViewModel>();
		var added = analyzerVm.Analyze((ICSharpCode.Decompiler.TypeSystem.IEntity)typeNode.Member!);
		var beforeCount = analyzerVm.Root.Children.Count;

		entry.Execute(new TextViewContext { SelectedTreeNodes = new SharpTreeNode[] { added } });
		TestCapture.Step("entity-removed-from-pane");

		analyzerVm.Root.Children.Should().NotContain(added,
			"Execute on Remove must drop the row from the pane root");
		analyzerVm.Root.Children.Count.Should().Be(beforeCount - 1);
	}
}