Correct inline plugin example?

On the Plugins page of the documentation, the following example is presented:

plugins: [
  // Karma will require() these plugins
  'karma-jasmine',
  'karma-chrome-launcher'

  // inlined plugins
  {'framework:xyz', ['factory', factoryFn]},
  require('./plugin-required-from-config')
]

Although I haven’t needed to write my own inline plugins yet, I doubt the example provided is correct, since it’s not even valid JavaScript syntax. Should it be { 'framework:xyz' : [ 'factory', factoryFn ] } instead? A little explanation on that point would be appreciated.

[rvowles]

I don’t know if this is useful, but it is my local karma override file with a custom plugin that runs my delcom build light.

var exec = require('child_process').exec;

var DelcomReporter = function(helper, logger) {
    console.log('i am a delcom reporter');
    var log = logger.create('reporter.delcom');

    function delcom(colour) {
        log.info('setting delcom to ', colour);
        exec('/usr/local/bin/delcom-stoplight ' + colour, function(error, stdout, stdin) {
        }).unref();
    }

    this.adapters = [];
    this.browserCount = 0;
    this.buildOk = false;
    this.onRunStart = function(browsers) {
        this.browserCount = browsers.length;
        this.buildOk = true;
        delcom('blue');
    };

    this.onBrowserComplete = function(browser) {
        var results = browser.lastResult;
        if (results.disconnected || results.error || results.failed) {
            this.buildOk = false;
        }
    };

    this.onRunComplete = function() {
        delcom(this.buildOk ? 'green' : 'red');
    };
};

DelcomReporter.$inject = ['helper', 'logger'];

config.set({
      //browsers: ['Chrome', 'Firefox', 'Safari']
      browsers: ['Chrome'],
    plugins: [
              // Karma will require() these plugins
              'karma-jasmine',
              'karma-chrome-launcher',
                'karma-ng-html2js-preprocessor',

              // inlined plugins
              {
                    'reporter:delcom': ['type', DelcomReporter]
                }
       ],
    reporters: ['progress', 'delcom']
    });

[zyf0330]

I want to coment one thing. For framework inline plugin, factory function must not be arrow function, otherwise it gives error TypeError: Cannot read property '1' of null