/**
* Run karma test.
* @function task.worker.runKarmaTest
* @param {object} config - Task configuration.
* @param {string} config.karmaConfigFile - Karma config file path.
* @param {function} callback - Callback when done.
* @author Taka Okunishi
*/
var path = require('path'),
childProcess = require('child_process'),
fork = childProcess.fork;
module.exports = function (config, callback) {
var karma = require('karma'),
karmaConfigFile = path.resolve(config.karmaConfigFile);
var server = fork(require.resolve('./.private/_karma_server'), [karmaConfigFile]);
server.on('message', function () {
server.send({kill: true});
callback();
});
};