public void AttemptToAccessNonExistentResource() { var shimHost = new TypeScriptLS (); var lsHost = new LanguageServiceShimHostAdapter (shimHost); var ls = new TypeScriptServicesFactory ().CreatePullLanguageService (lsHost); //Assert.AreEqual (lsHost.Instance, ls.Host.Instance, "#1"); // attempt to get non-existent definition Assert.IsNull (ls.GetDefinitionAtPosition ("nonexistent", 0), "#2"); }