Sinon Spy从未致电，但应该

问题描述

问题

我正在使用Jest和SinonJS测试自定义的Redux中间件，更准确地说，我想测试是否在中间件内部的特殊条件下调用了某些函数。

我使用SinonJS创建间谍，并使用Jest运行测试。 我为要跟踪的特定功能初始化了间谍程序，当我检查是否已调用这些间谍程序时，即使应该对其进行检查（手动测试）也没有对这些间谍程序进行过检查。

码

这是我要测试的中间件：

import { Cookies } from 'react-cookie';
import setAuthorizationToken from './setAuthorizationToken';

let cookies = new Cookies();

export const bindTokenWithApp = (store) => (next) => (action) => {
    // Select the token before action
    const previousToken = getToken(store.getState());
    // Dispatch action
    const result = next(action);
    // Select the token after dispatched action
    const nextToken = getToken(store.getState());

    if (previousToken !== nextToken) {
        if (nextToken === '') {
            setAuthorizationToken(false);
            cookies.remove(SESSION_COOKIE_NAME, COOKIE_OPTIONS);
        } else {
            cookies.set(SESSION_COOKIE_NAME, nextToken, COOKIE_OPTIONS);
            setAuthorizationToken(nextToken);
        }
    }

    return result;
};

这是我的实际测试

import { bindTokenWithApp } from './middleware';
import { Cookies } from 'react-cookie';
import sinon, { assert } from 'sinon';
import setAuthorizationToken from './setAuthorizationToken';

describe('bindTokenWithApp', () => {
    const next = jest.fn();
    const action = jest.fn();
    let cookies = new Cookies();

    it('removes cookies when there is no token', () => {
        // My actual not working spies
        const cookieSpy = sinon.spy(cookies.remove);
        const authSpy = sinon.spy(setAuthorizationToken);

        // Stub for the specific case. This code works, 
        // I console.logged in the middleware and I'm getting the below values
        const getState = sinon.stub();
        getState.onFirstCall().returns({ auth: { token: 'a token' } });
        getState.onSecondCall().returns({ auth: { token: '' } });
        const store = { getState: getState };

        bindTokenWithApp(store)(next)(action);

        assert.calledOnce(cookieSpy);
        assert.calledOnce(authSpy);
        // Output : AssertError: expected remove to be called once but was called 0 times
        // AssertError: expected setAuthorizationToken to be called once but was called 0 times

        cookieSpy.restore(); // <= This one works
        authSpy.restore(); // TypeError: authSpy.restore is not a function 

  });
});

我已经阅读了SinonJS文档和一些StackOverFlow帖子，但没有解决方案。 我也不能调用authSpy.restore(); 。 我认为我没有以正确的方式初始化间谍，并且我对SinonJS中的一个概念有误解，但是我找不到哪个！

setAuthorizationToken签名为
（别名）const setAuthorizationToken：（令牌：任何）=>无效
导入setAuthorizationToken

我认为这是一个经典模块，因此我无法弄清楚为什么要对authSpy.restore();挣扎authSpy.restore();