Stripping away the goofy jargon, you want to override the method $obj->does(), i.e. you want to replace the function that gets called. Doing so is no different than replacing any other function: 
*{ref($obj).'::does'} = sub {
    # do stuff you want
}

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In reply to Re: Testing with Roles by educated_foo
in thread Testing with Roles by tj_thompson

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