怎么做反应本地应用程序的单元测试

Question

你好，这是我想写单位

export default class testProject extends Component { 

_sum(a, b) { 
     return a + b; 
    } 

render() { 
    return (
     <View> 
      <Text>Business Finance</Text> 
     </View> 
     ); 
     } 
} 

做什么工具，我需要测试这两个UI和经营业务逻辑的样本类:)谢谢

Answer 1

的读数一天后记录了这个问题

对于UI一个挺直的答案 - >酶和玩笑 例如： - >

import Index from '../index.android.js'; 
    const expectedText = 'Business Finance'; 
    let wrapper=shallow(<Index />); 
    expect(wrapper.find('Text').children().text()).toEqual(expectedText); 

For Busine sslogic测试 - >酶

expect(wrapper.instance()._sum(2,3)).toBe(5); 

Answer 2

您可以阅读文章，那么你可以写测试:)

https://facebook.github.io/jest/docs/en/getting-started.html

https://blog.callstack.io/unit-testing-react-native-with-the-new-jest-i-snapshots-come-into-play-68ba19b1b9fe

https://blog.callstack.io/unit-testing-react-native-with-the-new-jest-ii-redux-snapshots-for-your-actions-and-reducers-8559f6f8050b

https://medium.com/@romarioraff/testing-react-apps-with-jest-and-chai-enzyme-for-beginners-baa5f57cec0b

https://medium.com/@dschmidt1992/jest-snapshot-testing-3ef9fa1222bb