无法使用业力进行承保 [英] Unable to run Coverage with Karma

问题描述

我正在尝试使用业力运行覆盖范围，并且收到警告:WARN [预处理]:无法加载"coverage"，它尚未注册！

I'm trying to run coverage with karma, and I get the warning: WARN [preprocess]: Can not load "coverage", it is not registered!

我以为我运行'npm install -g karma-coverage --save-dev'时就安装了Coverage

I thought I installed coverage when I ran 'npm install -g karma-coverage --save-dev'

这是我的配置文件:

module.exports = function(config) {
      config.set({
        // base path, that will be used to resolve files and exclude
        basePath: '',

        frameworks: ['jasmine'],

        // list of files / patterns to load in the browser
        files: [
                bunch of files..
        ],

        // list of files to exclude
        exclude: [],

        // use dots reporter, as travis terminal does not support escaping sequences
        // possible values: 'dots', 'progress'
        // CLI --reporters progress
        reporters: ['progress', 'coverage'],

        junitReporter: {
          // will be resolved to basePath (in the same way as files/exclude patterns)
          outputFile: 'test-results.xml'
        },

        // web server port
        // CLI --port 9876
        port: 9876,

        // enable / disable colors in the output (reporters and logs)
        // CLI --colors --no-colors
        colors: true,

        // level of logging
        // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
        // CLI --log-level debug
        logLevel: config.LOG_INFO,

        // enable / disable watching file and executing tests whenever any file changes
        // CLI --auto-watch --no-auto-watch
        autoWatch: true,

        // Start these browsers, currently available:
        // - Chrome
        // - ChromeCanary
        // - Firefox
        // - Opera
        // - Safari (only Mac)
        // - PhantomJS
        // - IE (only Windows)
        // CLI --browsers Chrome,Firefox,Safari
        browsers: ['ChromeCanary'],

        // If browser does not capture in given timeout [ms], kill it
        // CLI --capture-timeout 5000
        captureTimeout: 20000,

        // Auto run tests on start (when browsers are captured) and exit
        // CLI --single-run --no-single-run
        singleRun: true,

        // report which specs are slower than 500ms
        // CLI --report-slower-than 500
        reportSlowerThan: 500,

        // compile coffee scripts
        preprocessors: {
            'someFileName': ['coverage'],
        },

        plugins: [
          'karma-jasmine',
          'karma-chrome-launcher',
          'karma-firefox-launcher',
        ],

    coverageReporter: {
        'type' : 'cobertura',
        'dir': 'coverage/'
    }

  });
};

推荐答案

我得到了相同的[WARN]，因为未在配置插件中定义插件'karma-coverage'，请尝试添加它是否可以解决您的问题警告，不确定是否能解决您的全部问题.

I got the same [WARN] because the plugin 'karma-coverage' was not defined inside the plugins of the config, try to see if adding it fixes your warning, not sure if it will fix your full problem.

plugins: [
  'karma-jasmine',
  'karma-coverage',
  'karma-chrome-launcher',
  'karma-firefox-launcher',
],

更新:
在运行coverage时，我也遇到了另一个问题，由伊斯坦布尔引起，我的错误是

UPDATE:
I also had a different problem when running the coverage, caused by istanbul, my error was

[coverage]:[TypeError:无法设置未定义的'covered'属性"

[coverage]: [TypeError: Cannot set property 'covered' of undefined]

看看伊斯坦布尔在做什么，结果发现我的一些js单元文件的路径在预处理器中已经过时.

After having a look what istanbul was doing it turned out that the paths to some of my js unit files were outdated in the preprocessors.

它正在执行某些覆盖率报告，但没有为所有文件生成深度覆盖率报告，因此会出现错误.一旦修复了路径，一切就很好了.

It was doing some of the coverage reports but it was not generating deep coverage reports for all files hence the error. Once I fixed the paths it was all good.

    preprocessors : {
        '**/app/js/*/*.js' : 'coverage',
        '**/app/js/modules/*/*.js' : 'coverage',
        '**/app/js/services/*/*.js' : 'coverage'
    }, 

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