Don't defer to context for respond_to? until context is set.

This is keeping interactors from Just Working with delayed_job, as it bombs when deserializing from YAML. YAML calls a respond_to? but because the context isn't set, interactor bombs. 

I want to give YAML a slap, but I'm just trying to do my job here.

![](http://d24w6bsrhbeh9d.cloudfront.net/photo/aBKwZmD_460sa.gif)

I'm happy to take style suggestions, or ideas for a more descriptive test name.