Fuzzy output matcher (untested)

spec_helper.js

beforeEach(function() {
  this.addMatchers({
    toEqualSomethingIn : function toEqualSomethingIn(possibleOutputs) {
      this.message = function() {
        return [
          "Expected " + this.actual + " to be one of the following: "+ possibleOutputs,
          "Expected " + this.actual + " not to be one of the following: "+ possibleOutputs + ", but it was"
        ];
      };
      return (possibleOutputs.indexOf(this.actual) != -1)
    },
  });
});