如何對本機應用程序進行單元測試

Question

嗨，這是一個示例類，我想為其編寫單元

export default class testProject extends Component {

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

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

我需要測試UI和Bussiness邏輯的哪些工具:)謝謝

Answer 1

您可以閱讀這篇文章，然后可以編寫測試:)

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

Answer 2

經過一天的閱讀文檔，這個問題的答案很明確

對於UI-> Enzyme and Jest示例：->

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

對於Businesslogic測試->酶

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