reactjs - react Jest mock useAuth0 无法解构未定义的属性 'isLoading'

Question

我正在尝试从 @auth0/auth0-react 中模拟出 useAuth0 并遇到返回模拟值的问题。我目前有一个使用 useAuth0

的简单提供程序

import React, { createContext } from 'react';
import { useAuth0 } from "@auth0/auth0-react";

export const UserContext = createContext();

export const UserProvider = props => {
    const {
        isLoading
    } = useAuth0();
    
    return (
        props.children
    )
};

在我的测试中，此提供程序正在自定义 render 函数中使用

// test-utils.js
import React from 'react'
import { render as rtlRender } from '@testing-library/react'
import { createStore } from 'redux'
import { Provider } from 'react-redux'
import { MockedProvider } from '@apollo/client/testing';
// Import your own reducer
import applicationsReducer from "../app/slices/applications.slice";
import { UserProvider } from "../user-context";

function render(
  ui,
  {
    initialState,
    mock,
    store = createStore(applicationsReducer, initialState),
    ...renderOptions
  } = {}
) {
  function Wrapper({ children }) {
    return <Provider store={store}>
              <MockedProvider mocks={mock} addTypename={false}>
                <UserProvider>{children}</UserProvider>
              </MockedProvider>
            </Provider>
  }
  return rtlRender(ui, { wrapper: Wrapper, ...renderOptions })
}

// re-export everything
export * from '@testing-library/react'
// override render method
export { render }

为了模拟它，我使用来自 jest 的作用域模块文档设置了一个 mocks 文件夹

--src
   --__mocks__
      --@auth0
         --auth0-react.js

该模拟的代码如下所示

export const withAuthenticationRequired = jest.fn().mockImplementation((component, _) => {
    return component
})

export const useAuth0 = jest.fn().mockReturnValue({
  error: null,
  isAuthenticated: true,
  isLoading: true,
  user: {},
})

withAuthenticationRequired 模拟工作正常，但是 useAuth0 不断抛出错误错误:未捕获 [TypeError:无法解构 '(0 , _auth0React.useAuth0)(...)' 的属性 'isLoading'，因为它未定义。]我已经为此苦苦挣扎了几个小时，我们将不胜感激。

Answer 1

最终解决了这个问题，我在测试实用程序中遗漏了 Auth0Provider:

// test-utils.js
import React from 'react'
import { render as rtlRender } from '@testing-library/react'
import { createStore } from 'redux'
import { Provider } from 'react-redux'
import { MockedProvider } from '@apollo/client/testing';
import { Auth0Provider } from "@auth0/auth0-react";

// Import your own reducer
import applicationsReducer from "../app/slices/applications.slice";
import { UserProvider } from "../user-context";

function render(
  ui,
  {
    initialState,
    mock,
    store = createStore(applicationsReducer, initialState),
    ...renderOptions
  } = {}
) {
  function Wrapper({ children }) {
    return <Auth0Provider clientId="__test_client_id__" domain="__test_domain__">
              <Provider store={store}>
                <MockedProvider mocks={mock} addTypename={false}>
                  <UserProvider>{children}</UserProvider>
                </MockedProvider>
              </Provider>
            </Auth0Provider>
  }
  return rtlRender(ui, { wrapper: Wrapper, ...renderOptions })
}

// re-export everything
export * from '@testing-library/react'
// override render method
export { render }