apeman-dev-commons-testing/lib/run_karma.js

/**
 * Run karma.
 * @memberof module:apeman-dev-commons-testing/lib
 * @function runKarma
 * @param {string} command - Karma command.
 * @param {string} conf - Karma conf file path.
 * @param {options} [options] - Optional setting.
 * @param {function} [callback] - Callback when done.
 */

"use strict";

var argx = require('argx'),
    async = require('async'),
    h = require('./_helper'),
    execcli = require('execcli');

function _karmaBin() {
    try {
        return require.resolve('karma/bin/karma');
    } catch (e) {
        return 'karma'
    }
}

/** @lends runKarma */
function runKarma(command, conf, options, callback) {
    var args = argx(arguments);
    callback = args.pop('function') || argx.noop;
    options = args.pop('object') || {};
    command = args.shift('string');
    conf = args.shift('string');

    h.start();

    async.series([
        function (callback) {
            execcli(_karmaBin(), command, conf, options || {}, callback);
        }
    ], function (err) {
        h.end(err);
        callback(err);
    })
}

module.exports = runKarma;