SD2-1241. Fixed two problems in the Unit Tests pad that could occur when opening another solution before the parser has finished parsing the currently open solution. A) The ProjectService.OpenSolution could be null. The unit tests pad now clears the test tree in this case. B) If the project content is null for a project it is not added to the test tree. This can occur if the test tree is in the middle of updating the tree but the parser has cleared the project content as it starts to load another solution.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@2145 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/Misc/UnitTesting/Src/TestTreeView.cs

@@ -83,12 +83,15 @@ namespace ICSharpCode.UnitTesting
 			if (TestProject.IsTestProject(project)) {
 				if (GetProjectTreeNode(project) == null) {
 					// Add a new tree node.
-					TestProject testProject = new TestProject(project, GetProjectContent(project));
-					TestProjectTreeNode node = new TestProjectTreeNode(testProject);
-					node.AddTo(this);
-					
-					// Sort the nodes.
-					SortNodes(Nodes, true);
+					IProjectContent projectContent = GetProjectContent(project);
+					if (projectContent != null) {
+						TestProject testProject = new TestProject(project, projectContent);
+						TestProjectTreeNode node = new TestProjectTreeNode(testProject);
+						node.AddTo(this);
+						
+						// Sort the nodes.
+						SortNodes(Nodes, true);
+					}
 				}
 			}
 		}

src/AddIns/Misc/UnitTesting/Src/UnitTestsPad.cs

@@ -115,7 +115,11 @@ namespace ICSharpCode.UnitTesting
 		/// </summary>
 		protected void SolutionLoaded(Solution solution)
 		{
-			treeView.AddSolution(solution);
+			if (solution != null) {
+				treeView.AddSolution(solution);
+			} else {
+				treeView.Clear();
+			}
 		}
 		
 		/// <summary>

src/AddIns/Misc/UnitTesting/Test/Tree/ClassWithNoRootNamespaceTestFixture.cs

@@ -58,7 +58,7 @@ namespace UnitTesting.Tests.Tree
 						
 			// Init mock project content to be returned.
 			dummyTreeView = new DummyParserServiceTestTreeView();
-			dummyTreeView.AddProjectContentForProject(projectContent);
+			dummyTreeView.ProjectContentForProject = projectContent;
 			
 			// Load the projects into the test tree view.
 			treeView = dummyTreeView as TestTreeView;

src/AddIns/Misc/UnitTesting/Test/Tree/GetProjectsTestFixture.cs

@@ -49,7 +49,7 @@ namespace UnitTesting.Tests.Tree
 			projectContent.Project = project1;
 			
 			treeView = new DummyParserServiceTestTreeView();
-			treeView.AddProjectContentForProject(projectContent);
+			treeView.ProjectContentForProject = projectContent;
 			treeView.AddSolution(solution);
 			projects = treeView.GetProjects();
 		}

src/AddIns/Misc/UnitTesting/Test/Tree/OneTestClassTestFixture.cs

@@ -81,7 +81,7 @@ namespace UnitTesting.Tests.Tree
 			
 			// Init mock project content to be returned.
 			dummyTreeView = new DummyParserServiceTestTreeView();
-			dummyTreeView.AddProjectContentForProject(projectContent);
+			dummyTreeView.ProjectContentForProject = projectContent;
 			
 			// Load the projects into the test tree view.
 			treeView = dummyTreeView as TestTreeView;	

src/AddIns/Misc/UnitTesting/Test/Tree/SolutionOpenedTestFixture.cs

@@ -26,6 +26,7 @@ namespace UnitTesting.Tests.Tree
 		DerivedUnitTestsPad pad;
 		Solution solution;
 		MSBuildBasedProject project;
+		MockProjectContent projectContent;
 		
 		[TestFixtureSetUp]
 		public void SetUpFixture()
@@ -36,9 +37,10 @@ namespace UnitTesting.Tests.Tree
 		[SetUp]
 		public void Init()
 		{
+			projectContent = new MockProjectContent();
+			pad.ProjectContent = projectContent;
 			solution = new Solution();
 			project = new MockCSharpProject();
-			MockProjectContent projectContent = pad.ProjectContent;
 			projectContent.Project = project;
 			projectContent.Language = LanguageProperties.None;
 			ReferenceProjectItem refProjectItem = new ReferenceProjectItem(project);
@@ -340,5 +342,33 @@ namespace UnitTesting.Tests.Tree
 		{
 			Assert.IsTrue(pad.GetOpenSolutionCalled);
 		}
+		
+		/// <summary>
+		/// Tests that a null solution clears the test tree.
+		/// </summary>
+		[Test]
+		public void NullSolution()
+		{
+			pad.CallSolutionLoaded(null);
+			Assert.AreEqual(0, pad.TestTreeView.Nodes.Count);
+		}
+		
+		/// <summary>
+		/// If the user opens another solution before the parser thread
+		/// has finished we can sometimes get into a state where the 
+		/// first solution is being loaded into the test tree view but
+		/// its project content has been removed since the parser is working
+		/// on the next solution that was opened. In this case the test
+		/// tree view should ignore any project's that have null project
+		/// contents.
+		/// </summary>
+		[Test]
+		public void NullProjectContent()
+		{
+			DummyParserServiceTestTreeView tree = (DummyParserServiceTestTreeView)pad.TestTreeView;
+			tree.ProjectContentForProject = null;
+			
+			pad.CallSolutionLoaded(solution);
+		}
 	}
 }

src/AddIns/Misc/UnitTesting/Test/Tree/TwoTestClassesInDifferentNamespacesTestFixture.cs

@@ -65,7 +65,7 @@ namespace UnitTesting.Tests.Tree
 						
 			// Init mock project content to be returned.
 			dummyTreeView = new DummyParserServiceTestTreeView();
-			dummyTreeView.AddProjectContentForProject(projectContent);
+			dummyTreeView.ProjectContentForProject = projectContent;
 			
 			// Load the projects into the test tree view.
 			treeView = dummyTreeView as TestTreeView;

src/AddIns/Misc/UnitTesting/Test/Utils/DerivedUnitTestsPad.cs

@@ -26,6 +26,7 @@ namespace UnitTesting.Tests.Utils
 		Solution openSolution;
 		bool loadSolutionProjectsThreadEndedHandled;
 		bool addedLoadSolutionProjectsThreadEndedHandler;
+		DummyParserServiceTestTreeView treeView = new DummyParserServiceTestTreeView();
 
 		public DerivedUnitTestsPad(Solution openSolution)
 		{
@@ -44,6 +45,10 @@ namespace UnitTesting.Tests.Utils
 			get {
 				return projectContent;
 			}
+			set {
+				projectContent = value;
+				treeView.ProjectContentForProject = projectContent;
+			}
 		}
 		
 		public bool GetOpenSolutionCalled {
@@ -130,8 +135,6 @@ namespace UnitTesting.Tests.Utils
 		/// </summary>
 		protected override TestTreeView CreateTestTreeView()
 		{
-			DummyParserServiceTestTreeView treeView = new DummyParserServiceTestTreeView();
-			treeView.AddProjectContentForProject(projectContent);
 			return treeView;
 		}
 		

src/AddIns/Misc/UnitTesting/Test/Utils/DummyParserServiceTestTreeView.cs

@@ -20,9 +20,17 @@ namespace UnitTesting.Tests.Utils
 	{
 		IProjectContent projectContent;
 		
-		public void AddProjectContentForProject(IProjectContent projectContent)
-		{
-			this.projectContent = projectContent;
+		/// <summary>
+		/// Gets or sets the project content that will be returned from the
+		/// GetProjectContent method.
+		/// </summary>
+		public IProjectContent ProjectContentForProject {
+			get {
+				return projectContent;
+			}
+			set {
+				projectContent = value;
+			}
 		}
 		
 		public override IProjectContent GetProjectContent(IProject project)