这是一个 Vue 2 JavaScript 应用程序:
VIcon 导致 jest 测试失败并出现此错误:
console.error node_modules/vue/dist/vue.runtime.common.dev.js:621
[Vue warn]: Error in render: "TypeError: Cannot read property 'component' of undefined"
found in
---> <VIcon>
<VCheckbox>
<Anonymous>
<Root>
我使用 Vue cli 工具创建了这个应用程序,并使用 vue add 添加了 Vuetify 插件。我也在 vue 模板模板中使用 PUG,使用 SCSS 代替 css(Node-sass)。这可能是由于下面将提供的笑话设置。我按照在线设置忽略了一些文件并收集了覆盖范围。
module.exports = {
preset: '@vue/cli-plugin-unit-jest',
setupFiles: ['./tests/setup.js'],
moduleNameMapper: {
'^@/(.*)$': '<rootDir>/src/$1',
},
testMatch: [
'**/tests/unit/**/*.spec.(js|jsx|ts|tsx)|**/__tests__/*.(js|jsx|ts|tsx)',
'**/tests/int/**/*.spec.(js|jsx|ts|tsx)|**/__tests__/*.(js|jsx|ts|tsx)',
],
transform: {
".+\\.(css|styl|less|sass|scss|png|jpg|jpeg|mp3|ttf|woff|woff2)$": "jest-transform-stub",
"^.+\\.jsx?$": "babel-jest",
"^.+\\.js?$": "babel-jest"
},
snapshotSerializers: ['jest-serializer-vue'],
collectCoverage: true,
collectCoverageFrom: [
'src/**/*.{js,vue}',
'!src/main.js',
'!src/App.vue',
'!src/plugins/*',
'!src/router/*',
// testing this later
'!src/store/*',
'!src/store/modules/*',
],
};
jest 内部设置文件只是添加了 vuetify:
import Vue from 'vue';
import Vuetify from 'vuetify';
Vue.use(Vuetify);
这是 package.json 以查看我正在使用的版本:
{
"name": "client2",
"version": "0.1.0",
"private": true,
"scripts": {
"serve": "vue-cli-service serve",
"build": "vue-cli-service build",
"test:unit": "vue-cli-service test:unit --coverage --watchAll",
"test-ci": "vue-cli-service lint && vue-cli-service test:unit && vue-cli-service --mode development --headless",
"lint": "vue-cli-service lint"
},
"dependencies": {
"axios": "^0.21.1",
"core-js": "^3.6.5",
"vue": "^2.6.11",
"vue-notification": "^1.3.20",
"vue-router": "^3.2.0",
"vuetify": "^2.2.11",
"vuex": "^3.4.0"
},
"devDependencies": {
"@vue/cli-plugin-babel": "~4.5.0",
"@vue/cli-plugin-eslint": "~4.5.0",
"@vue/cli-plugin-router": "~4.5.0",
"@vue/cli-plugin-unit-jest": "~4.5.0",
"@vue/cli-plugin-vuex": "~4.5.0",
"@vue/cli-service": "~4.5.0",
"@vue/eslint-config-prettier": "^6.0.0",
"@vue/test-utils": "^1.0.3",
"babel-eslint": "^10.1.0",
"eslint": "^6.7.2",
"eslint-plugin-prettier": "^3.1.3",
"eslint-plugin-vue": "^6.2.2",
"node-sass": "^4.12.0",
"prettier": "^1.19.1",
"sass": "^1.19.0",
"sass-loader": "^8.0.2",
"vue-cli-plugin-pug": "~2.0.0",
"vue-cli-plugin-vuetify": "~2.0.9",
"vue-template-compiler": "^2.6.11",
"vuetify-loader": "^1.3.0"
}
}
和测试:
import TriBox from '../../src/components/UIContainers/TriBox.vue';
import { createLocalVue, mount } from '@vue/test-utils';
import Vuetify from 'vuetify';
describe('<TriBox /> Unit Tests', () => {
let wrapper;
const localVue = createLocalVue();
localVue.use(Vuetify);
beforeEach(() => {
wrapper = mount(TriBox, {
localVue,
});
});
it(`renders to screen`, () => {
expect(wrapper.exists).toBeTruthy();
});
});
和组件:
<template lang="pug">
.box-container
.left
v-checkbox
.middle
p hello
.right
v-icon mdi-trash-can
</template>
<script>
export default {};
</script>
<style lang="scss" scoped>
</style>
我找不到与这是 Vuetify 和 Vue2 的已知错误相关的特定文档。任何人都知道如何解决这个问题?我认为这与 jest 设置文件有关,或者我如何设置测试并将 vuetify 添加到本地 vue。但任何建议都会有所帮助。
答案 0 :(得分:0)
基于 Vuetify 的 Jest setup docs:
不要使用 localVue.use(Vuetify)
,因为您已经在 Jest 设置文件中调用了 Vue.use(Vuetify)
。
与 localVue
一起,将 vuetify
作为 Vuetify
的新实例传递给 mount()
:
const localVue = createLocalVue()
let wrapper
beforeEach(() => {
wrapper = mount(TriBox, {
localVue,
vuetify: new Vuetify(),
})
})