spec.js

import * as actions from '../../actions'
import * as types from '../../constants/actionTypes'
import itemTypeReducer from './ItemTypeReducer'

describe('itemTypeReducer', () => {
  it('Toggles the Hotel item into the selected array', function() {
    let initialState = {
      selected: []
    };
    let action = {
      itemType: 'Hotel',
      type: types.TOGGLE_ITEM_TYPE
    };
    let newState = itemTypeReducer(initialState, action);
    expect(newState.selected[0]).to.eq("Hotel");
  });

  it('toggles out the Hotel if its already included', function() {
    let initialState = {
      selected: ['Hotel']
    };
    let action = {
      itemType: 'Hotel',
      type: types.TOGGLE_ITEM_TYPE
    };
    let newState = itemTypeReducer(initialState, action);
    expect(newState.selected).to.have.length(0);
  });

});