public void SetUpFixture()
		{
			SD.InitializeForUnitTests();
			WixBindingTestsHelper.InitMSBuildEngine();
			
			// create the project.
			ProjectCreateInformation info = new ProjectCreateInformation(MockSolution.Create(), new FileName(@"C:\Projects\Test\Test.wixproj"));

			wixProject = new WixProjectWithOverriddenSave(info);
			
			// Add wix extensionitem.
			wixExtensionItem = new WixExtensionProjectItem(wixProject);
			wixExtensionItem.Include = @"..\..\first.dll";
			ProjectService.AddProjectItem(wixProject, wixExtensionItem);
			
			// Run Initialize on the WixExtensionFolderNode, which is 
			// equivalent to expanding the node, so it adds it children. Cannot
			// call ExtTreeNode.Expanding since this relies on the tree node
			// being visible.
			WixExtensionFolderNodeTester nodeTester = new WixExtensionFolderNodeTester(wixProject);
			nodeTester.RunInitialize();
			
			wixExtensionFolderNode = (WixExtensionFolderNode)nodeTester;
			wixExtensionNode = (WixExtensionNode)wixExtensionFolderNode.Nodes[0];
		}
		public void SetUpFixture()
		{
			wixProject = WixBindingTestsHelper.CreateEmptyWixProject();
			
			// Add wix Extension item.
			firstWixExtensionItem = new WixExtensionProjectItem(wixProject);
			firstWixExtensionItem.Include = @"..\..\first-ext.dll";
			ProjectService.AddProjectItem(wixProject, firstWixExtensionItem);
			
			// Add another wix Extension item.
			secondWixExtensionItem = new WixExtensionProjectItem(wixProject);
			secondWixExtensionItem.Include = @"..\..\second-ext.dll";
			ProjectService.AddProjectItem(wixProject, secondWixExtensionItem);

			// Run Initialize on the WixExtensionFolderNode, which is 
			// equivalent to expanding the node, so it adds it children. Cannot
			// call ExtTreeNode.Expanding since this relies on the tree node
			// being visible.
			WixExtensionFolderNodeTester nodeTester = new WixExtensionFolderNodeTester(wixProject);
			nodeTester.RunInitialize();
			
			wixExtensionFolderNode = (WixExtensionFolderNode)nodeTester;
			if (wixExtensionFolderNode.Nodes.Count > 1) {
				firstWixExtensionNode = (WixExtensionNode)wixExtensionFolderNode.Nodes[0];
				secondWixExtensionNode = (WixExtensionNode)wixExtensionFolderNode.Nodes[1];
			}
		}