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POUsing Moq to test methods that accept non-primative arguments
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  1. POUsing Moq to test methods that accept non-primative arguments
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    copied!<p>I'm trying to write a test for an ASP.Net MVC controller action.</p> <p>I'd like to test that the action invokes a particular method on an injected service, so I'm mocking the service and using .Verify.</p> <p>So in the simple case, I have the following action in my controller:</p> <pre><code> [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(string title) { _cmsService.AddPage(title); return View("Edit"); } </code></pre> <p>using the service interface...</p> <pre><code>public interface ICmsService { void AddPage(string request); } </code></pre> <p>and the following test...</p> <pre><code> //Arrange const string pageTitle = "Test Page"; var cmsService = new Mock&lt;ICmsService&gt;(); cmsService.Setup(service =&gt; service.AddPage(pageTitle)); var controller = new PageController(cmsService.Object); //Act var result = controller.Create(pageTitle) as ViewResult; //Assert cmsService.Verify(service =&gt; service.AddPage(pageTitle), Times.Once()); </code></pre> <p>Now I want to refactor my service operation to use request and response objects...</p> <pre><code>public interface ICmsService { CmsServiceAddPageResponse AddPage(CmsServiceAddPageRequest request); } </code></pre> <p>So I change my action accordingly...</p> <pre><code> public ActionResult Create(string title) { var request = new CmsServiceAddPageRequest() { PageName = title }; var response = _cmsService.AddPage(request); return View("Edit"); } </code></pre> <p>and also my test...</p> <pre><code> //Arrange const string pageTitle = "Test Page"; var cmsService = new Mock&lt;ICmsService&gt;(); var request = new CmsServiceAddPageRequest() {PageName = pageTitle}; cmsService.Setup(service =&gt; service.AddPage(request)); var controller = new PageController(cmsService.Object); //Act var result = controller.Create(pageTitle) as ViewResult; //Assert cmsService.Verify(service =&gt; service.AddPage(request), Times.Once()); </code></pre> <p>But now when I run the test, I get the following message...</p> <pre><code>TestCase 'Web.Test.PageControllerTest.CreateNewPagePost' failed: Moq.MockException : Invocation was performed more than once on the mock: service =&gt; service.AddPage(value(Web.Test.PageControllerTest+&lt;&gt;c__DisplayClass1).request) at Moq.Mock.ThrowVerifyException(IProxyCall expected, Expression expression, Times times) at Moq.Mock.VerifyCalls(Interceptor targetInterceptor, MethodCall expected, Expression expression, Times times) at Moq.Mock.Verify[T,TResult](Mock mock, Expression`1 expression, Times times, String failMessage) at Moq.Mock`1.Verify[TResult](Expression`1 expression, Times times) PageControllerTest.cs(67,0): at Web.Test.PageControllerTest.CreateNewPagePost() </code></pre> <p>What should I be doing to test a method that accepts a non-primitive type?</p> <p>Thanks</p> <p>Sandy</p>
 

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