jest mock axios complex implement

1. 登录页面场景

• 进入登录页面时，获取验证码，接口返回一个imageId和content。
• 用户输入登录名，密码，和验证码。
• 用户点击登录，调用验证码是否正确接口，返回imageVerification为true时，说明验证码填写正确。
• 然后请求获取token接口，返回用户信息和其他相关信息，将返回信息存入localstorage.

2. 集成测试

import {simpleLocalStorage} from "simple-storage";
import {act, fireEvent} from "@testing-library/react";
it("currentUser should be in the localStorage when login success", () => {
    const container = RenderWithRouter(<Login />);
    // some same code ignore
    const usernameElem: HTMLInputElemnt = container.querySelector("#username");
    const passwordElem = getByPlaceholderText(/password/i) as HTMLInputElemnt;

    await act(async () => {
        fireEvent.change(usernameElem,{target: {value: username}});
    })

    process.nextTick(() => {
        fireEvent.click(submitElem);
        expect(usernameElem.value).toEqual(username);

        setTimeout( () => {
            const storageData = simpleLocalStorage.getItem("currentUser");
            expect(storageData).not.toBeNull();
        })
    })
})