为应用编写一些单元测试并在describe块中敲击墙。
/* eslint-env mocha */
const React = require('react')
const chai = require('chai')
const { expect } = chai
const Search = require('../js/Search')
const ShowCard = require('../js/ShowCard')
const enzyme = require('enzyme')
const { shallow } = enzyme
const data = require('../public/data')
describe('<Search />', () => {
it('should render as many shows as there are data for', () => {
const wrapper = shallow(<Search />)
expect(wrapper.find(ShowCard).length).to.equal(data.shows.length)
console.log(wrapper.debug())
})
})
搜索组件中的代码正在渲染ShowCard:
<div className='shows'>
{data.shows
.filter((show) => `${show.title} ${show.description}`.toUpperCase().indexOf(this.state.searchTerm.toUpperCase()) >= 0)
.map((show, index) => (
<ShowCard {...show} key={index} id={index} />
))}
</div>
(wrapper.find(ShowCard).length)
应该等于(data.shows.length)
,但它会发出此错误:
<Search /> should render as many shows as there are data for:
AssertionError: expected 0 to equal 21
+ expected - actual
-0
+21
at Context.<anonymous> (App.spec.js:19:45)
根据上述错误,问题从期望equal(data.shows.length)
开始,但我认为没有错。有人能指出我正确的方向吗?
答案 0 :(得分:0)
替换为空字符串解决了问题。所有测试现在都通过了。