Question

为什么.find不是下面代码上下文中的函数？

import React from 'react';
import { shallow } from 'enzyme';
import toJson from 'enzyme-to-json';
import { AuthorizedRoutesJest } from './AuthorizedRoutes';

// Components
import {
  Main
} from '../../components';

const wrapper = shallow(<AuthorizedRoutesJest />);

describe('<AuthorizedRoutes /> component', () => {
  it('should render', () => {
    const tree = toJson(wrapper);
    expect(tree).toMatchSnapshot();
    expect(wrapper).toHaveLength(1);
  });

  it('should contain a Main component', () => {
    expect(wrapper).find(Main).toHaveLength(1);
  });
});

所有失败测试的摘要    FAIL客户端/容器/路由/ AuthorizedRoutes.test.js

AuthorizedRoutes组件>应包含主要组件

TypeError：expect（...）。find不是函数

Answer 1

我错误地使用了.find

以下是如何使用find：

的示例

it('should contain a ConnectedRouter component', () => {
  expect(wrapper.find(ConnectedRouter)).toHaveLength(1);
});

it('should contain a Switch component', () => {
  expect(wrapper.find(Switch)).toHaveLength(1);
});

it('should contain 7 Route components', () => {
  expect(wrapper.find(Route)).toHaveLength(7);
});

Answer 2

如果要查找具有特定testID道具的组件，这是另外

dyld: Library not loaded: @rcpath/libGLEW.2.1.dylib
Referenced from:@rcpath/Xcode/DerivedData/GLFW_opengl-digmcjjsxnhrabepersfaxavutvh/Build/Products/Debug/GLFW opengl
Reason: no suitable image found.  
Did find: /usr/local/opt/glew/lib/libGLEW.2.1.dylib: 
code signature in (/usr/local/opt/glew/lib/libGLEW.2.1.dylib) not valid for use in process using Library Validation: 
mapped file has no cdhash, completely unsigned? Code has to be at least ad-hoc signed.

酶测试：TypeError：expect（...）。find不是函数

2 个答案: