aodb/build/gulp/run-tests.js

var gulp = require('gulp'),
    path = require('path'),
    util = require('gulp-util'),
    log = util.log,
    config = require('../gulp.config')(),
    args = require('yargs').argv,
    server = require('karma').Server;

module.exports =
    gulp.task('run-tests', function (done) {
        startTests(done);
    });

/**
 * Start the tests using karma.
 * @param  {boolean} singleRun - True means run once and end (CI), or keep running (dev)
 * @param  {Function} done - Callback to fire when karma is done
 * @return {undefined}
 */
function startTests(done) {
    log("Running Tests on Environment: " + environment);

    var karma = new server({
        configFile: path.join(__dirname, '../../karma.conf.js')
    });

    karma.start();
}