title: When using Moq to mock an interface, what happens to the methods?
body: <p>When using Moq to mock an interface, what happens to the methods?</p>
  
  <p>Let's say I have an interace <code>ISomething</code>, which IoC maps to the class <code>Something</code>. Then in my test I do this: <code>var something = new Mock&lt;ISomething&gt;();</code>.</p>
  
  <p>Lets say the interface contains a method:
  <code>string method();</code>.</p>
  
  <p>Now, if I call that method on the mocked instance, <code>something.method()</code>, will it be mapped to the class <code>Something</code>'s implementation, or will it just return void? Will Moq try to map an interface with an implementation?</p>