Reactjs 如何用JEST中的配置模拟API调用?
我正在为我的api使用Reactjs 如何用JEST中的配置模拟API调用?,reactjs,unit-testing,jestjs,next.js,Reactjs,Unit Testing,Jestjs,Next.js,我正在为我的api使用@woocommerce/woocommerce rest api包。我正在使用NextJS和React Redux。以下是我的woocommerce配置: import WooCommerceRestApi from '@woocommerce/woocommerce-rest-api'; export const wooApi = new WooCommerceRestApi({ url: 'MY_API_URL', consumerKey: 'MY_CO
@woocommerce/woocommerce rest api
包。我正在使用NextJS和React Redux。以下是我的woocommerce配置:
import WooCommerceRestApi from '@woocommerce/woocommerce-rest-api';
export const wooApi = new WooCommerceRestApi({
url: 'MY_API_URL',
consumerKey: 'MY_CONSUMER_KEY',
consumerSecret: 'MY_CONSUMER_SECRET',
version: 'wc/v3',
queryStringAuth: true,
});
我在安装组件时立即发送一个操作
以下是我在操作中如何使用API:
export const fetchMainProductCategories = () => {
return async (dispatch: Dispatch) => {
try {
const response = await wooApi.get(`products/categories?hide_empty=true&parent=0`);
dispatch<FetchMainProductCategories>({
type: CategoryTypes.fetchMainProductCategories,
payload: response.data,
});
} catch (error) {
console.log(error);
}
};
};
export const fetchMainProductCategories=()=>{
返回异步(分派:分派)=>{
试一试{
const response=wait wooApi.get(`products/categories?hide_empty=true&parent=0`);
派遣({
类型:CategoryTypes.fetchMainProductCategories,
有效载荷:response.data,
});
}捕获(错误){
console.log(错误);
}
};
};
以下是我到目前为止的初步测试陈述,但我不工作:
import React from 'react';
import '../../__mocks__/matchMedia';
import MockCategories from '../../__mocks__/mockCategories';
import { render, cleanup, logDOM } from '@testing-library/react';
import Index from '../../pages/index';
import Root from '../../Root';
import { wooApi } from '../../config';
jest.mock('../../config');
describe('Homepage', () => {
beforeEach(() => {
render(
<Root>
<Index />
</Root>
);
});
afterEach(cleanup);
it('loads Product Categories', async () => {
wooApi.get.mockResolvedValueOnce({
data: MockCategories,
});
logDOM();
// const list = await waitFor(() => screen.getByTestId('category-list'));
});
});
从“React”导入React;
导入“../../\uuuuu mocks\uuuu/matchMedia”;
从“../../\u____/MockCategories”导入MockCategories;
从'@testing library/react'导入{render,cleanup,logDOM};
从“../../pages/Index”导入索引;
从“../../Root”导入根目录;
从“../../config”导入{wooApi};
jest.mock('../../config');
描述('主页',()=>{
在每个之前(()=>{
渲染(
);
});
每次之后(清理);
它('加载产品类别',异步()=>{
wooApi.get.mockResolvedValue一次({
数据:类别,
});
logDOM();
//const list=wait waitFor(()=>screen.getByTestId('category-list');
});
});
您需要将wooApi
的get
方法注册为模拟,同时保留api
的其他功能。即:
import { wooApi } from '../../config'
import { fetchMainProductCategories } from '../where-it-is-defined'
// mark get method as jest mock
jest.mock('../../config', () => ({
...jest.requireActual('../../config'), // to avoid overriding other methods/features
get: jest.fn(), // override get method of the api
}))
describe('Homepage', () => {
beforeEach(()=>{
wooApi.get.mockResolvedValue({
status: 200,
data: { categories: ['a', 'b'] },
})
test('loads ...', async () => {
const dispatch = jest.fn()
await fetchMainProductCategories()(dispatch)
expect(dispatch).toHaveBeenCalledWith(
{ type: '...',
payload: { categories: ['a', 'b'] }
}
)
})
})
Ref:
编辑:我的坏,通过执行
jest.spyOn(config.wooApi,'get')
我们只是在模仿单个实例的“get”方法。下面编辑的代码应该可以工作
您还可以使用jest.spyOn
来模拟get方法,如下所示
import * as config from '../../config'
jest.spyOn(WooCommerceRestApi.prototype, 'get')
WooCommerceRestApi.prototype.get.mockResolvedValue('...')
你对此有什么问题?当您测试fetchMainProductCategories时,您需要模拟wooApi.get,并且您需要在其他任何地方模拟fetchMainProductCategories,这是一个很好的单元测试策略。谢谢!我尝试了这个,得到了TypeError:_config.wooApi.get.mockResolvedValue不是一个函数-是的,我也尝试了这个,但仍然得到了相同的错误。非常感谢。