Unit Testing MVC Controllers

If you use the ASP.NET MVC Extension with ASP.NET MVC 4, you may encounter problems running unit tests if you inherit from the MicroLiteController or MicroLiteReadOnlyController.

This is because the MVC Extension for MicroLite is currently built against ASP.NET MVC 3.

Since the Controller classes in ASP.NET MVC 4 are backwards compatible with MVC 3, you can fix this by adding an app.config to your unit test project with a binding redirect for ASP.NET MVC as follows:

<runtime>
  <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
    <dependentAssembly>
      <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
      <bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
    </dependentAssembly>
  </assemblyBinding>
</runtime>
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