Unit testing 如何修复Jest错误:TypeError:$不是函数
我正在为Vue.js组件编写单元测试用例 当我尝试使用Unit testing 如何修复Jest错误:TypeError:$不是函数,unit-testing,vue.js,jestjs,vue-test-utils,Unit Testing,Vue.js,Jestjs,Vue Test Utils,我正在为Vue.js组件编写单元测试用例 当我尝试使用vue test utilshallowMount组件时,我得到一个错误: TypeError:$不是VueComponent.mounted上的函数 (src/components/gridComponent/index.vue:7579:7) 我的代码: import $ from 'jquery'; global['$'] = global['jQuery'] = $; import { shallowMount, createLo
vue test utilshallowMount
组件时,我得到一个错误:
TypeError:$不是VueComponent.mounted上的函数
(src/components/gridComponent/index.vue:7579:7)
我的代码:
import $ from 'jquery';
global['$'] = global['jQuery'] = $;
import { shallowMount, createLocalVue } from '@vue/test-utils'
import gridComponent from '@/components/gridComponent/index'
describe('grid view component', () => {
it('has the expected HTML structure', async () => {
let wrapper = await shallowMount(gridComponent, {
stubs: ['GridLayout', 'GridItem'],
propsData: {componentsList}
})
expect(wrapper.element).toMatchSnapshot()
})
})
以下是gridComponent的代码:
import * as $ from 'jquery'
export default {
name: 'gridComponent',
components: { GridLayout, GridItem, DxpCommonModal },
props: ['componentsList'],
watch: {
componentsList: function (newVal, oldVal) {
// eslint-disable-next-line
this.matchingComponents = this.componentsList
}
},
data () {
return {
isDraggable: true,
isResizable: true
}
},
created () {
},
computed: {
...mapGetters(['getResources'])
},
mounted () {
$('#headerComponent').html(this.getSelectorHTML(this.siteDetails.header))
$('#footerComponent').html(this.getSelectorHTML(this.siteDetails.footer))
this.addHtmlOfComponentsInAPage()
},
destroyed () {
},
methods: {
addHtmlOfComponentsInAPage () {
this.selectedPage.Components.forEach((element, index) => {
$('#${index}').html(this.getSelectorHTML(this.selectedPage.Components[index]))
})
},
getSelectorHTML (component) {
const element = document.createElement(component.componentType)
element.setAttribute('content-id', new Date().getTime().toString())
if (!this.values && component.demoData) {
this.values = component.demoData
}
if (this.values) {
this.createMarkup(element, this.values)
this.values = ''
}
return element
}
}
}
故障排除
在组件中,尝试
const $ = require('jquery')
将其置于导致错误的方法中的用法之前
这会让你知道你是否正在某处取消定义或重新定义它
解决方案2
您可能需要jsdom
const jsdom = require("jsdom");
const { JSDOM } = jsdom;
const { window } = new JSDOM(`<!DOCTYPE html>`);
const $ = require('jquery')(window);
constjsdom=require(“jsdom”);
const{JSDOM}=JSDOM;
const{window}=newjsdom(``);
const$=require('jquery')(窗口);
您能显示gridComponent的代码吗?我已经添加了代码gridComponent在您使用它之前将其放入,而不是在方法挂载的
之外,并且jquery在您的node\u modules文件夹中?您的配置中有jquery的别名吗?这可能是解决问题的方法……我不确定。您正在谈论在jest配置中添加它吗?您是否也尝试过在根文件中添加require…
,而不是import…
?