Question

我正在尝试使用全局安装的mocha对istanbul进行代码覆盖：

  E:\Do\learn_mocha>istanbul cover _mocha -- -R spec

C:\Users\Vamsi\AppData\Roaming\npm\_mocha.CMD:1
(function (exports, require, module, __filename, __dirname) { @IF EXIST "%~dp0
                                                              ^
No coverage information was collected, exit without writing coverage information

SyntaxError: Unexpected token ILLEGAL
    at Module._compile (module.js:439:25)
    at Module._extensions..js (module.js:474:10)
    at Object.Module._extensions..js (C:\Users\Vamsi\AppData\Roaming\npm\node_mo
dules\istanbul\lib\hook.js:102:13)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
    at runFn (C:\Users\Vamsi\AppData\Roaming\npm\node_modules\istanbul\lib\comma
nd\common\run-with-cover.js:114:16)
    at C:\Users\Vamsi\AppData\Roaming\npm\node_modules\istanbul\lib\command\comm
on\run-with-cover.js:232:17
    at C:\Users\Vamsi\AppData\Roaming\npm\node_modules\istanbul\lib\util\file-ma
tcher.js:56:16
    at C:\Users\Vamsi\AppData\Roaming\npm\node_modules\istanbul\lib\util\file-ma
tcher.js:35:9

此命令也会抛出与上面相同的错误：

    E:\Do\learn_mocha>istanbul cover --hook-run-in-context _mocha -- -R spec

github问题告诉我，我必须从node_modules添加一条到mocha的路径，所以我这样做了：

    E:\Do\learn_mocha>istanbul cover C:\Users\Vamsi\AppData\Roaming\npm\mocha -- -R

规范

C:\Users\Vamsi\AppData\Roaming\npm\mocha:2
basedir=`dirname "$0"`
        ^
No coverage information was collected, exit without writing coverage information

SyntaxError: Unexpected token ILLEGAL
    at Module._compile (module.js:439:25)
    at Module._extensions..js (module.js:474:10)
    at Object.Module._extensions..js (C:\Users\Vamsi\AppData\Roaming\npm\node_mo
dules\istanbul\lib\hook.js:102:13)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
    at runFn (C:\Users\Vamsi\AppData\Roaming\npm\node_modules\istanbul\lib\comma
nd\common\run-with-cover.js:114:16)
    at C:\Users\Vamsi\AppData\Roaming\npm\node_modules\istanbul\lib\command\comm
on\run-with-cover.js:232:17
    at C:\Users\Vamsi\AppData\Roaming\npm\node_modules\istanbul\lib\util\file-ma
tcher.js:56:16
    at C:\Users\Vamsi\AppData\Roaming\npm\node_modules\istanbul\lib\util\file-ma
tcher.js:35:9

我使用Windows 7作为我的操作系统

我的测试看起来像这样：

var assert = require("assert"); // core module
var C = require('../cash.js');  // our module

describe('Cash Register', function(){
  describe('Module C', function(){

    it('should have a getChange Method', function(){
      assert.equal(typeof C, 'object');
      assert.equal(typeof C.getChange, 'function');
    })

    it('getChange(210,300) should equal [50,20,20]',function(){
        assert.deepEqual(C.getChange(210,300),[50,20,20]);
    })

    it('getChange(486,1000) should equal [500,10,2,2]',function(){
        assert.deepEqual(C.getChange(486,1000),[500,10,2,2]);
    })

    it('getChange(1487,10000) should equal [5000,2000,1000,500,10,2,1]',function(){
        assert.deepEqual(C.getChange(1487,10000),[5000,2000,1000,500,10,2,1]);
    })
  })
})

Answer 1

这对我有用：

我在本地安装了mocha和istanbul（在npm安装上没有-g）。我在跑

*./node_modules/.bin/istanbul cover ./node_modules/.bin/_mocha*

这就出现了你上面看到的错误。我已将其更改为查看mocha的显式本地文件夹

*./node_modules/.bin/istanbul cover ./node_modules/mocha/bin/_mocha*

现在一切都很好。

请注意我在Windows 7上的gitbash下运行我的设置

Answer 2

Try this one, it should work.

istanbul cover %APPDATA%/npm/node_modules/mocha/bin/_mocha -- -R spec

Answer 3

根据github中的这个comment，在windows中批处理命令没有在javascript中解析。因此导致了这个问题。

根据建议，您可以直接将mocha的javascript函数传递给istanbul。这是你如何做到的

输入npm ls -g --depth=0
复制输出的第一行。它应该是C:\Users\<YourUserName>\AppData\Roaming\npm
输入istanbul cover C:\Users\<YourUserName>\AppData\Roaming\npm\node_modules\mocha\bin\_mocha test\folder

所以这里不是传递_mocha（windows命令），而是传递来自全局mocha安装的javascript。这正是前一个答案中本地安装mocha所发生的事情。

Answer 4

尝试此命令：

istanbul cover C:\\Users\\username\\AppData\\Roaming\\npm\\node_modules\\mocha\\bin\\_mocha
                          ^
                          Insert Your username here

username =您的用户名

Answer 5

尝试：伊斯坦布尔封面％NODE_HOME％\ node_modules \ mocha \ bin_mocha - -R spec --recursive test

Windows 7中Mocha的代码覆盖率

5 个答案: