* "mock(*name*, *coderef*)"
        Adds a coderef to the object. This allows code to call the named
        method on the object. For example, this code:

            my $mock = Test::MockObject->new();
            $mock->mock( 'fluorinate',
                sub { 'impurifying precious bodily fluids' } );
            print $mock->fluorinate;

        will print a helpful warning message.