我有用ES6编写的Node代码,我通过发出mocha –harmony进行测试.
测试很好 – 一切正常.
测试很好 – 一切正常.
现在我想添加coverage和istanbul,但是我遇到了第一个箭头函数的错误：
No coverage information was collected,exit without writing coverage information
c:\Users\Guy\Code\alpha-dev\tests\helpers.js:12
setTimeout(() => {
^
SyntaxError: Unexpected token )
at exports.runInThisContext (vm.js:73:16)
at Module._compile (module.js:443:25)
at Module._extensions..js (module.js:478:10)
at Object.Module._extensions..js (c:\Users\Guy\Code\alpha-dev\node_modules\istanbul\lib\hook.js:101:13)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Module.require (module.js:365:17)
这是我试过的：
>安装伊斯坦布尔和谐(来自git：//github.com/gotwarlost/istanbul.git#harmony)作为我的开发依赖.
>运行以下命令：“./ node_modules / .bin /istanbul”cover“./node_modules/mocha/bin/_mocha” – –harmony tests -R spec
>伊斯坦布尔和_mocha标志的组合
我如何运行istanbul来涵盖使用ES6功能编写的测试？我错过了什么？
解决方法
2016年7月
以下是package.json文件的相关部分,其中包含有效的“npm cover”命令,该命令对es6模块代码(即包括es6导入和导出),babel 6,istanbul-1.0-alpha.2有用.
我发布这个是因为我不得不花费几个小时来解决其他人的github问题线程(现在我找不到)的解决方案.似乎有很多“解决方案”不再解决覆盖问题,或者无法轻易地适应其他堆栈的devDependencies.因人而异.
package.json脚本
"scripts": {
"clean": "rm -rf ./build ./doc ; mkdir ./build","build": "node_modules/.bin/babel build src/index.js -o build/index.js","doc": "node_modules/.bin/esdoc -c esdoc.json","lint": "node_modules/.bin/eslint src/index.js","lint-test": "node_modules/.bin/eslint test/index.js","test": "node_modules/.bin/mocha --compilers js:babel-core/register --reporter spec --slow 50 --timeout 60000","cover": "node_modules/.bin/istanbul cover node_modules/.bin/_mocha -- -u exports --compilers js:babel-register --timeout 60000","go": "npm run clean && npm run lint && npm run lint-test && npm run test && npm run build"
},
package.json devDependencies
"devDependencies": {
"babel": "^6.5.2","babel-cli": "^6.10.1","babel-core": "^6.10.4","babel-preset-es2015": "^6.9.0","coveralls": "^2.11.9","esdoc": "^0.4.7","eslint": "^3.0.1","istanbul": "^1.0.0-alpha.2","mocha": "^2.5.3","should": "^8.3.1"
},
.babelrc
{
"presets": ["es2015"]
}
.travis.yml
language: node_js node_js: - 6 install: - npm install script: - npm run lint - npm run lint-test - npm run cover after_script: - "cat coverage/lcov.info | node_modules/coveralls/bin/coveralls.js"
