Reactjs 钩子默认导出时的模拟函数
我有一个自定义钩子API网关调用另一个自定义钩子http。我想模拟promise函数sendHttpRequest来测试sendAPIRequest。通过这段代码,我得到了“拒绝值:[TypeError:无法读取未定义的'then'属性]” 我试图避免任何模拟文件。如果我模拟axios,则apiGateway.test通过。 如何在useHttp的默认导出上模拟函数sendHttpRequest http.jsReactjs 钩子默认导出时的模拟函数,reactjs,react-hooks,Reactjs,React Hooks,我有一个自定义钩子API网关调用另一个自定义钩子http。我想模拟promise函数sendHttpRequest来测试sendAPIRequest。通过这段代码,我得到了“拒绝值:[TypeError:无法读取未定义的'then'属性]” 我试图避免任何模拟文件。如果我模拟axios,则apiGateway.test通过。 如何在useHttp的默认导出上模拟函数sendHttpRequest http.js import { useCallback } from 'react'; impor
import { useCallback } from 'react';
import axios from 'axios';
const useHttp = () => {
const sendRequest = useCallback((url, method, body) => {
return new Promise((resolve, reject) => {
axios({ method: method, url: url, data: body, config: { crossDomain: true } })
.then((response) => {
resolve(response.data);
})
.catch((error) => {
reject(error);
});
});
}, []);
return {
sendHttpRequest: sendRequest,
};
};
export default useHttp;
apiGateway.js
import { useCallback } from 'react';
import useHttp from '../abstract/http';
import configuration from '../../endpoints';
const useApiGateway = () => {
const { sendHttpRequest } = useHttp();
const apiGatewayBaseUrl = configuration.API_GATEWAY_BASE_URL;
const apiGatewayPath = configuration.LAMBDA_USER_ENDPOINT;
const sendRequest = useCallback((body) => {
return new Promise((resolve, reject) => {
sendHttpRequest(apiGatewayBaseUrl + apiGatewayPath, 'get', body)
.then((response) => {
resolve(response);
})
.catch((error) => {
reject(error);
});
});
}, []);
return {
sendApiRequest: sendRequest,
};
};
export default useApiGateway;
apiGateway.test.js
import React from 'react';
import { act, renderHook } from '@testing-library/react-hooks';
import useApiGateway from './apiGateway';
import useHttp from '../abstract/http';
jest.mock('../abstract/http', () => jest.fn());
describe('hook/aws/apiGateway', () => {
let result;
beforeEach(() => {});
it('should send GET request with no error', () => {
//TODO mock http instead of axios
let response = { data: '<html>Hello</html>' };
useHttp.mockImplementation(() => ({
sendHttpRequest: jest.fn(() => {}),
}));
let { sendHttpRequest } = useHttp();
sendHttpRequest.mockResolvedValue(
new Promise((resolve, reject) => {
resolve(response);
})
);
result = renderHook(() => useApiGateway()).result;
console.log(useHttp());
act(() => {
return expect(result.current.sendApiRequest({})).resolves.toEqual(response.data);
});
});
});
您的模拟应该返回一个承诺(而不是试图模拟承诺库) 例如:
function myMockRequest() {
return Promise.resolve({ mockResponse });
}
您的模拟应该返回一个承诺(而不是试图模拟承诺库) 例如:
function myMockRequest() {
return Promise.resolve({ mockResponse });
}