public void LoadAndUnloadModule() { var factories = new[] { InterpreterFactoryCreator.CreateAnalysisInterpreterFactory(new Version(3, 3)) }; var services = PythonToolsTestUtilities.CreateMockServiceProvider().GetEditorServices(); using (var analyzer = new VsProjectAnalyzer(services, factories[0])) { var m1Path = TestData.GetPath("TestData\\SimpleImport\\module1.py"); var m2Path = TestData.GetPath("TestData\\SimpleImport\\module2.py"); var taskEntry1 = analyzer.AnalyzeFileAsync(m1Path); var taskEntry2 = analyzer.AnalyzeFileAsync(m2Path); taskEntry1.Wait(CancellationTokens.After5s); taskEntry2.Wait(CancellationTokens.After5s); var entry1 = taskEntry1.Result; var entry2 = taskEntry2.Result; var cancel = CancellationTokens.After60s; analyzer.WaitForCompleteAnalysis(_ => !cancel.IsCancellationRequested); cancel.ThrowIfCancellationRequested(); var loc = new Microsoft.PythonTools.Parsing.SourceLocation(0, 1, 1); AssertUtil.ContainsExactly( analyzer.GetEntriesThatImportModuleAsync("module1", true).Result.Select(m => m.moduleName), "module2" ); AssertUtil.ContainsExactly( analyzer.GetValueDescriptions(entry2, "x", loc), "int" ); analyzer.UnloadFileAsync(entry1).Wait(); analyzer.WaitForCompleteAnalysis(_ => true); // Even though module1 has been unloaded, we still know that // module2 imports it. AssertUtil.ContainsExactly( analyzer.GetEntriesThatImportModuleAsync("module1", true).Result.Select(m => m.moduleName), "module2" ); AssertUtil.ContainsExactly( analyzer.GetValueDescriptions(entry2, "x", loc) ); analyzer.AnalyzeFileAsync(m1Path).Wait(); analyzer.WaitForCompleteAnalysis(_ => true); AssertUtil.ContainsExactly( analyzer.GetEntriesThatImportModuleAsync("module1", true).Result.Select(m => m.moduleName), "module2" ); AssertUtil.ContainsExactly( analyzer.GetValueDescriptions(entry2, "x", loc), "int" ); } }