我有用ES6编写的Node代码,可以通过发出mocha --harmony
进行测试。
测试很好-一切正常。
现在,我想将coverage和istanbul添加到混合中,但是在遇到的第一个箭头函数上,我不断出错:
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)
这是我尝试过的:
"./node_modules/.bin/istanbul" cover "./node_modules/mocha/bin/_mocha" -- --harmony tests -R spec
如何运行istanbul来涵盖使用ES6功能编写的测试?我想念什么?
最佳答案
2016年七月
这是带有有效的“npm cover”命令的package.json文件的相关部分,该命令对es6模块代码(即es6 import
和export
),babel 6,istanbul-1.0-alpha.2有用。
我发布此消息是因为我不得不花几个小时来解决其他人的github问题线程(现在找不到)的解决方案。似乎有很多“解决方案”不再解决覆盖问题或无法轻易适应其他devDependencies堆栈。 YMMV。
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.ymllanguage: 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"