unit-testing - 无法在 PhantomJS 浏览器中执行 karma 单元测试

Question

在 grunt 中，我们通过以下方式在 PhantomJs 中执行单元测试。

karma: {
        options: {
    configFile: 'karma.conf.js',
    runnerPort: 9876,
    browsers: ['Chrome']
    },
unitTestDev: {
        browsers: ['PhantomJS'],
        singleRun: true
     }
}

grunt.registerTask('unitTest',['karma:unitTestDev']);

这是 karma.conf.js 文件。

    // Karma configuration
// Generated on Thu Apr 03 2014 13:44:39 GMT-0500 (Central Daylight Time)

module.exports = function(config) {
  config.set({

    // base path that will be used to resolve all patterns (eg. files, exclude)
    basePath: '',


    // frameworks to use
    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
    frameworks: ['jasmine'],


    // list of files / patterns to load in the browser
    files: [
        {pattern: 'dist/lib/jquery/dist/jquery.js', watched: false, served: true, included: true},
        {pattern: 'dist/lib/jasmine-jquery/lib/jasmine-jquery.js', watched: false, served: true, included: true},
        {pattern: 'dist/lib/angular/angular.js', watched: false, served: true, included: true},
        {pattern: 'dist/lib/angular-route/angular-route.min.js', watched: false, served: true, included: true},
        {pattern: 'dist/lib/angular-mocks/angular-mocks.js', watched: false, served: true, included: true},

        {pattern: 'dist/main.min.js', watched: false, served: true, included: true},

        {pattern: 'public/test/unit/**/*Spec.js', watched: false, served: true, included: true},

        // fixtures
        {pattern: 'public/test/mock/**/*.json', watched: true, served: true, included: false}
    ],


    // list of files to exclude
    exclude: [

    ],


    // preprocess matching files before serving them to the browser
    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
    preprocessors: {

    },


    // test results reporter to use
    // possible values: 'dots', 'progress'
    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
    reporters: ['progress', 'html', 'junit', 'story'],

    htmlReporter: {
      outputDir: 'build/unit-test/html-report',
      templatePath: 'node_modules/karma-html-reporter/jasmine_template.html'
    },

    junitReporter: {
      outputFile: 'build/unit-test/junit-report/test-results.xml',
      suite: ''
    },

    // web server port
    port: 9876,


    // enable / disable colors in the output (reporters and logs)
    colors: true,


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


    // enable / disable watching file and executing tests whenever any file changes
    autoWatch: false,


    // start these browsers
    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
    browsers: ['Chrome'],

    // Continuous Integration mode
    // if true, Karma captures browsers, runs the tests and exits
    singleRun: false
     });
    };

当执行“karma:unitTestDev”命令时，出现以下错误。

Running "karma:unitTestDev" (karma) task
INFO [karma]: Karma v0.11.14 server started at http://localhost:9876/
INFO [launcher]: Starting browser PhantomJS
ERROR [launcher]: Cannot start PhantomJS
    Error: spawn OK
INFO [launcher]: Trying to start PhantomJS again (1/2).
ERROR [launcher]: Cannot start PhantomJS
    Error: spawn OK
INFO [launcher]: Trying to start PhantomJS again (2/2).
ERROR [launcher]: Cannot start PhantomJS
    Error: spawn OK
ERROR [launcher]: PhantomJS failed 2 times (cannot start). Giving up.
Warning: Task "karma:unitTestDev" failed. Use --force to continue.

Aborted due to warnings.

我们在 Windows 和 Linux 操作系统中遇到了上述问题。在 Mac 中，karma 在 PhantomJS 上成功执行测试。

在 Windows 中，如果我们在 Chrome 浏览器中执行上述测试，而不是 PhantomJS，那么 karma 会成功执行所有单元测试。

以下是 Package.json 中与 karma 相关的依赖项

"phantomjs": "~1.9.7-3",
"karma": "~0.12.3",
"karma-chrome-launcher": "~0.1.3",
"karma-jasmine": "~0.1.5",
"karma-html-reporter": "~0.2.3",
"karma-junit-reporter": "~0.2.1",
"grunt-karma": "~0.8.2",
"karma-phantomjs-launcher": "~0.1.3"

让我知道 PhantomJS 的 karma 或咕噜声中是否有任何已知问题。

Answer 1

“Karma-phantomjs-launcher”v0.1.3 存在问题。将其更改为 v0.1.4，然后它就可以正常工作了。