我正在尝试为 Vuejs 配置/运行我的第一个单元测试。但我无法解决配置问题。我曾尝试安装这些库，但由于某种原因，我不断收到错误消息。
这是我的代码示例：
我的目录结构：
hello/
dist/
node_modules/
src/
components/
hello.vue
test/
setup.js
test.spec.js
.babelrc
package.json
webpack.config.js
我的文件中的内容
src/components/hello.vue
<template> <div> {{message}} </div> </template>
<script>
export default {
name: 'hello',
data () { return message: 'Hi' },
created () {
// ...
}
}
测试/setup.js
// setup JSDOM
require('jsdom-global')()
// make expect available globally
global.expect = require('expect')
测试/test.spect.js
import { shallow } from 'vue/test-utils'
import { hello} from '../../../src/components/hello.vue'
describe('hello', () => {
// just testing simple data to see if it works
expect(1).toBe(1)
})
.babelrc
{
"env": {
"development": {
"presets": [
[
"env",
{
"modules": false
}
]
]
},
"test": {
"presets": [
[
"env",
{
"modules": false,
"targets": {
"node": "current"
}
}
]
],
"plugins": [
"istanbul"
]
}
}
}
包.json
...
"scripts": {
"build": "webpack -p",
"test": "cross-env NODE_ENV=test nyc mocha-webpack --webpack-config webpack.config.js --require test/setup.js test/**/*.spec.js"
},
"devDependencies": {
"babel-core": "^6.26.0",
"babel-loader": "^7.1.2",
"babel-preset-env": "^1.6.1",
"cross-env": "^5.1.1",
"css-loader": "^0.28.7",
"file-loader": "^1.1.5",
"node-sass": "^4.7.2",
"sass-loader": "^6.0.6",
"vue-loader": "^13.5.0",
"vue-template-compiler": "^2.5.9",
"webpack": "^3.10.0",
"webpack-dev-server": "^2.9.7",
"jsdom": "^11.3.0",
"jsdom-global": "^3.0.2",
"mocha": "^3.5.3",
"mocha-webpack": "^1.0.0-rc.1",
"nyc": "^11.4.1",
"expect": "^21.2.1",
"@vue/test-utils": "^1.0.0-beta.12"
},
...
"nyc": {
"include": [
"src/**/*.(js|vue)"
],
"instrument": false,
"sourceMap": false
}
最后是我的 webpack.config.js ...
if(process.env.NODE_ENV == "test") {
module.exports.externals = [ require ('webpack-node-externals')()]
module.exports.devtool = 'inline-cheap-module-source-map'
}
现在，当我npm test从根文件夹运行时，hello/出现此错误：
> hello@1.0.0 test C:\Users\john\vue-learn\hello
> npm run e2e
> hello@1.0.0 e2e C:\Users\john\vue-learn\hello
> node test/e2e/runner.js
Starting selenium server... started - PID: 12212
[Test] Test Suite
=====================
Running: default e2e tests
× Timed out while waiting for element <#app> to be present for 5000 milliseconds. - expected "visible" but got: "not found"
at Object.defaultE2eTests [as default e2e tests] (C:/Users/john/Google Drive/lab/hello/test/e2e/specs/test.js:13:8)
at _combinedTickCallback (internal/process/next_tick.js:131:7)
FAILED: 1 assertions failed (20.281s)
_________________________________________________
TEST FAILURE: 1 assertions failed, 0 passed. (20.456s)
× test
- default e2e tests (20.281s)
Timed out while waiting for element <#app> to be present for 5000 milliseconds. - expected "visible" but got: "not found"
at Object.defaultE2eTests [as default e2e tests] (C:/Users/john/Google Drive/lab/hello/test/e2e/specs/test.js:13:8)
at _combinedTickCallback (internal/process/next_tick.js:131:7)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! hello@1.0.0 e2e: `node test/e2e/runner.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the hello@1.0.0 e2e script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\john\AppData\Roaming\npm-cache\_logs\2018-04-03T23_53_15_976Z-debug.log
npm ERR! Test failed. See above for more details.
我不知道为什么会这样。当我最初安装我的 webpack 项目时，我没有使用 npm init 命令安装测试库，因此没有冲突，但我仍然收到该错误：
更新（赏金后）
我只是想测试我的 vuejs 应用程序。希望有茉莉花/业力。如果有人知道如何将这些集成到一个简单的应用程序中并运行第一个测试，我可以从那里得到它。我的问题不是编写测试而是配置它