title: How to verify that a substitute received no calls at all?
body: <p>Using NSubstitute.
  For some tests I want to assert that a Substitute has received <em>no calls whatsoever</em>. I could use <code>DidNotReceiveWithAnyArgs()</code> for every method in the interface, but that is tedious and not as robust (if a new method is added to the interface, a developer could easily overlook adding that to the test).</p>
  <p>I'm looking for something <em>functionally</em> similar to Moq's <code>VerifyNoOtherCalls()</code> being called without any other Verify checks.</p>