text: import { expect } from '../test_helper'
  import commentReducer from '../../src/reducers/comments'
  import { SAVE_COMMENT } from '../../src/actions/types'
  
  describe('Comments Reducer', () => {
    it('handles action with unknown type', () => {
      expect(commentReducer(undefined, {})).to.eql([])
    })
  
    it('handles action of type SAVE_COMMENT', () => {
      const action = { type: SAVE_COMMENT, payload: 'new comment' }
      expect(commentReducer([], action)).to.eql(['new comment'])
    })
  })