Demonstrating bug in karma-jsdom-launcher 2.0.0

gulpfile.js

var gulp = require('gulp');
var Server = require('karma').Server;

gulp.task('test', function (done) {
  new Server({
    configFile: __dirname + '/karma.conf.js',
    singleRun: true
  }, done).start();
});

karma.conf.js

module.exports = function(config) {
  config.set({
    files: ['test.js'],
    frameworks: ['jasmine'],
    browsers: ['jsdom']
  });
};

package.json

{
  "name": "karmatest",
  "version": "1.0.0",
  "devDependencies": {
    "gulp": "3.9.0",
    "jasmine-core": "2.4.1",
    "karma": "0.13.9",
    "karma-jasmine": "0.3.6",
    "karma-jsdom-launcher": "2.0.0"
  }
}

test.js

describe('a thing', function () {
  it('should do something', function () {
    expect(true).toBe(true);
  });
});