gulpfile.js
var path = require('path');
var gulp = require('gulp');
var karma = require('karma').server;
gulp.task('test', function(done) {
karma.start({
configFile: path.join(__dirname, 'karma.conf.js'),
singleRun: true
}, done);
});
gulp.task('tdd', function(done) {
karma.start({
configFile: path.join(__dirname, 'karma.conf.js')
}, done);
});