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POUnit testing custom MembershipProvider.ValidateUser, using code in Global.asax
 

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    <p>I have a unit test to check my AccountController.LogIn method. A redirect result is returned to indicate successs, otherwise a viewresult is returned.</p> <p>The test always fails as the return type is always viewresult, even though the test should return success as the credentials are valid, however I can't identify where the problem is. My TestMethod: <strong>CustomerRepositoryTest.cs</strong></p> <pre><code>[TestMethod] public void Can_Login_With_Valid_Credentials() { // Arrange Mock&lt;IAddressRepository&gt; mockAddressRepository = new Mock&lt;IAddressRepository&gt;(); Mock&lt;ICustomerRepository&gt; mockCustomerRepository = new Mock&lt;ICustomerRepository&gt;(); Mock&lt;IOrderRepository&gt; mockOrderRepository = new Mock&lt;IOrderRepository&gt;(); LoginViewModel model = new LoginViewModel { Email = "me@5.com", Password = "password" }; AccountController target = new AccountController(mockCustomerRepository.Object, mockAddressRepository.Object, mockOrderRepository.Object); // Act ActionResult result = target.LogIn(model); // Assert Assert.IsInstanceOfType(result, typeof(RedirectResult)); Assert.AreEqual("", ((RedirectResult)result).Url); } </code></pre> <p>When I run the test, it fails in My AccountController Login method when I call ValidateUser <strong>AccountController.cs</strong></p> <pre><code>if (Membership.ValidateUser(LoginModel.Email, LoginModel.Password)) { ... return RedirectToRoute(new { controller = "Account", action = "Details" }); } else { return View(); } </code></pre> <p>My custom MembershipProvider ValidateUser looks like this:</p> <p><strong>AccountMembershipProvider.cs</strong></p> <pre><code>public class AccountMembershipProvider : MembershipProvider { [Inject] public ICustomerRepository repository { get; set; } public override bool ValidateUser(string username, string password) { var cust = repository.GetAllCustomers().SingleOrDefault.. </code></pre> <p>When I run the application normally i.e. not testing, the login works fine. In the application I inject the CustomerRepository into the custom membership provider in <strong>Global.asax</strong>:</p> <pre><code> public class MvcApplication : System.Web.HttpApplication { private IKernel _kernel = new StandardKernel(new MyNinjectModules()); internal class MyNinjectModules : NinjectModule { public override void Load() { Bind&lt;ICustomerRepository&gt;().To&lt;CustomerRepository&gt;(); } } protected void Application_Start() { _kernel.Inject(Membership.Provider); ... </code></pre> <p>Is it the case that the Global.asax code isn't run while unit testing? and so my custom provider isn't being injected, hence the fail?</p> <p><strong>UPDATE</strong> I mocked my Provider class and passed the mocked CustomerRepository object to it.</p> <pre><code>Mock&lt;AccountMembershipProvider&gt; provider = new Mock&lt;AccountMembershipProvider&gt;(); provider.Object.repository = mockCustomerRepository.Object; </code></pre> <p>I then created a setup for the method I'm trying to test:</p> <pre><code> mockCustomerRepository.Setup(m =&gt; m.IsValidLogin("me@5.com", "password")).Returns(true); </code></pre> <p>But unfortunately I'm still getting a fail every time. To answer the question about whether I need a real or mocked object for the test - I'm not fussy, I just want to get it working at the moment!</p> <p><strong>UPDATE 2</strong></p> <p>I made those changes, and while it's still failing, it has allowed me to identify the specific problem. While debugging the test, I discovered that when I call the overridden</p> <pre><code>Membership.ValidateUser(LoginModel.Email, LoginModel.Password) </code></pre> <p>The Membership.Provider is of type SqlMembershipProvider (which is presumably the default type) and consequently validation fails.</p> <p>If I cast the provider to my custom provider...</p> <pre><code>((AccountMembershipProvider)Membership.Provider).ValidateUser(LoginModel.Email, LoginModel.Password) </code></pre> <p>I get an InvalidCastException when running the test. So it seems that my mocked AccountMembershipProvider isn't being used for the test and instead the default provider is being used.</p> <p>I think you have identified this already in the comment:</p> <pre><code>// set your mock provider in your AccountController </code></pre> <p>However I'm not sure what you mean exactly - I don't have a property on my AccountController to assign the provider to, and i'm not injecting it into the constructor.</p>
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    1. COJust to let you know, I added more information to my answer earlier in the day with an edit. Do not hesitate to ask for clarifications or more specific information.
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    2. CO@Gilles - I implemented your suggestions (see update). They clarified a lot for me, although still failing every time unfortunately! Do I need to define setup methods for both the Provider AND the Repository classes?
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    3. COI update my post with an example.. Basically if your provider is mocked there is no need to create mocks for it's dependencies as the mock object won't call them.
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