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([action.payload]);
      });
  });