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    <p>I used Jon Canning's updated version (<a href="https://github.com/JonCanning/MvcIntegrationTestFramework/" rel="nofollow">https://github.com/JonCanning/MvcIntegrationTestFramework/</a>) and it solved my problem very well for controller methods that only accept value types and strings, but did not work for those that accepted classes.</p> <p>It turns out there was an issue with the code for the updated <code>MvcIntegrationTestFramework</code>.</p> <p>I figured out how to fix it, but don't know where else to post the solution, so here it is:</p> <p>A simple sample to show how it works is:</p> <pre><code> [TestMethod] public void Account_LogOn_Post_Succeeds() { string loginUrl = "/Account/LogOn"; appHost.Start(browsingSession =&gt; { var formData = new RouteValueDictionary { { "UserName", "myusername" }, { "Password", "mypassword" }, { "RememberMe", "true"}, { "returnUrl", "/myreturnurl"}, }; RequestResult loginResult = browsingSession.Post(loginUrl, formData); // Add your test assertions here. }); } </code></pre> <p>The call to <code>browsingSession.Post</code> would ultimately cause the <code>NameValueCollectionConversions.ConvertFromRouteValueDictionary(object anonymous)</code> method to be called, and the code for that was:</p> <pre><code>public static class NameValueCollectionConversions { public static NameValueCollection ConvertFromObject(object anonymous) { var nvc = new NameValueCollection(); var dict = new RouteValueDictionary(anonymous); // ** Problem 1 foreach (var kvp in dict) { if (kvp.Value == null) { throw new NullReferenceException(kvp.Key); } if (kvp.Value.GetType().Name.Contains("Anonymous")) { var prefix = kvp.Key + "."; foreach (var innerkvp in new RouteValueDictionary(kvp.Value)) { nvc.Add(prefix + innerkvp.Key, innerkvp.Value.ToString()); } } else { nvc.Add(kvp.Key, kvp.Value.ToString()); // ** Problem2 } } return nvc; } </code></pre> <p>Then there was two problems: </p> <ol> <li>The call to <code>new RouteValueDictionary(anonymous)</code> would cause the "new" <code>RouteValueDictionary</code> to be created, but instead of 4 keys, there are only three, one of which was an array of 4 items.</li> <li>When it hits this line: <code>nvc.Add(kvp.Key, kvp.Value.ToString()</code>, the <code>kvp.Value</code> is an array, and the ToString() gives: <code>"System.Collections.Generic.Dictionary'2+ValueCollection[System.String,System.Object]"</code></li> </ol> <p>The fix (to my specific issue) was to change the code as follows:</p> <pre><code> var dict = anonymous as RouteValueDictionary; // creates it properly if (null == dict) { dict = new RouteValueDictionary(anonymous); } </code></pre> <p>After I made this change, then my model class would properly bind, and all would be well.</p>
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    1. USJeffrey Magel
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