content: import React from 'react';
  import ReactDOM from 'react-dom';
  import {List, Map} from 'immutable';
  import {expect} from 'chai';
  import {getModifier} from '../source/scripts/app';
  
  describe('application logic', () => {
  
    describe('getModifier', () => {
  
      it('returns a value', () => {
        const state = Map();
        const abilityValue = 16;
        const nextState = getModifier(state, abilityValue);
        expect(nextState).to.equal(Map({
          modifier: 3
        }));
      });
  
    });
  });
  