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    copied!<p>This <a href="http://3amcode.blogspot.com/2012/07/unit-testing-signalr-hubs.html" rel="nofollow noreferrer">link</a> shows how to unit test SignalR hub methods using Moq. You mock up the respository, clients, context, and the caller. Here's the code from the site, I made some minor changes to make it work with the latest SignalR:</p> <pre class="lang-cs prettyprint-override"><code>public class TestableChatHub : ChatHub { public Mock&lt;IChatRepository&gt; MockChatRepository { get; private set; } public TestableChatHub(Mock&lt;IChatRepository&gt; mockChatRepository) : base(mockChatRepository.Object) { const string connectionId = "1234"; const string hubName = "Chat"; var mockConnection = new Mock&lt;IConnection&gt;(); var mockUser = new Mock&lt;IPrincipal&gt;(); var mockCookies = new Mock&lt;IRequestCookieCollection&gt;(); var mockRequest = new Mock&lt;IRequest&gt;(); mockRequest.Setup(r =&gt; r.User).Returns(mockUser.Object); mockRequest.Setup(r =&gt; r.Cookies).Returns(mockCookies.Object); Clients = new ClientProxy(mockConnection.Object, hubName); Context = new HubCallerContext(mockRequest.Object, connectionId); var trackingDictionary = new TrackingDictionary(); Caller = new StatefulSignalProxy( mockConnection.Object, connectionId, hubName, trackingDictionary); } } </code></pre> <p>Then the site shows that you can use this testable hub to write unit tests:</p> <pre class="lang-cs prettyprint-override"><code> [TestClass] public class ChatHubTests { private TestableChatHub _hub; public void SetUpTests() { _hub = GetTestableChatHub(); } [Test] public void ExampleTest() { SetUpTests(); const string message = "test"; const string connectionId = "1234"; var result = _hub.Send(message); _hub.MockChatRepository.Verify(r =&gt; r.SaveMessage(message, connectionId)); Assert.IsTrue(result); } private TestableChatHub GetTestableChatHub() { var mockRepository = new Mock&lt;IChatRepository&gt;(); mockRepository.Setup(m =&gt; m.SaveMessage( It.IsAny&lt;string&gt;(), It.IsAny&lt;string())).Returns(true); return new TestableChatHub(mockRepository); } } </code></pre>
 

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