[Test]
public void exampleTest1()
{
   MockManager.Init();
   Mock fooMock = MockManager.Mock(typeof(Foo));
   fooMock.ExpectConstructor().Args(10);

   Foo f = new Foo(10);   // Constructor called
   MockManager.Verify();

   // This test passes, as expected...so far so good
}

[Test]
public void exampleTest2()
{
   MockManager.Init();
   Mock fooMock = MockManager.Mock(typeof(Foo));
   fooMock.ExpectConstructor();

   Foo f = new Foo();  // Constructor called
   MockManager.Verify();

   // This test passes...also as expected
}

[Test]
public void exampleTest3()
{
   MockManager.Init();
   Mock fooMock = MockManager.Mock(typeof(Foo));
   fooMock.ExpectConstructor();

   // nb. not instantiating an instance of Foo

   MockManager.Verify();

   // This test passes - why?!
}