ReferenceError：使用笑话运行测试时，未定义windowTopScroll

Question

我正在尝试对通过windowTopScroll()方法调用mounted的文件进行测试。

玩笑正在抛出ReferenceError: windowTopScroll is not defined

这是我的测试代码。

import Vue from 'vue';
import sinon from 'sinon'
import WorkTimeline from '../../components/WorkTimeline.vue';
import { createLocalVue, mount, shallowMount } from '@vue/test-utils';

Vue.config.ignoredElements = ['name']
describe("WorkTimeline.test.js", () => {
    const windowTopScroll = jest.fn()
    test('renders WorkTimeline Slider', () => {
        const wrapper = shallowMount(WorkTimeline, {
            mocks: {
                $t: () => {},
                windowTopScroll: jest.fn()
            },

        });
        expect(windowTopScroll).toHaveBeenCalled();



    });