visionmedia/should.js — pull request #200 by relfor (2014-04-07 22:56:53+00:00)
Title: New assertions: supersetOf & subsetOf

##### New BDD assertions:

supersetOf

['pepperoni', 'tomatoes', 'onion'].should.be.a.supersetOf(['tomatoes'])

> (*validation of pizza toppings*)

subsetOf

['air-conditioning', 'wifi'].should.be.a.subsetOf(['gym', 'wifi', 'air-conditioning', 'hydro'])

> (*validation of requirements for an apartment search*)