Gulp Karma Integration

gulp-karma.js

/**
 * testing tasks (using karma to test in the browser). Requires a karma.conf.js for full config
 * single-run testing 
 * continuous testing
 */

/** base deps, but you may need more specifically for your application */
var gulp = require('gulp');
var gutil = require('gulp-util');
var path = require('path');
var karma = require('karma');
var karmaParseConfig = require('karma/lib/config').parseConfig;

function runKarma(configFilePath, options, cb) {

	configFilePath = path.resolve(configFilePath);

	var server = karma.server;
	var log=gutil.log, colors=gutil.colors;
	var config = karmaParseConfig(configFilePath, {});

    Object.keys(options).forEach(function(key) {
      config[key] = options[key];
    });

	server.start(config, function(exitCode) {
		log('Karma has exited with ' + colors.red(exitCode));
		cb();
		process.exit(exitCode);
	});
}

/** actual tasks */

/** single run */
gulp.task('test', function(cb) {
	runKarma('karma.conf.js', {
		autoWatch: false,
		singleRun: true
	}, cb);
});

/** continuous ... using karma to watch (feel free to circumvent that;) */
gulp.task('test-dev', function(cb) {
	runKarma('karma.conf.js', {
		autoWatch: true,
		singleRun: false
	}, cb);
});

Note: This was built specifically for my needs but turns out to be generic enough to be used widely. Most of your configuration and use of karma should be done in karam e.g. [your]karma.conf.js.

Life saver! 👍

Thanks so much for this. I really hated having my karma config inside my gulpfile!

You should uppercase the server, because otherwehise you'll use the "old server" :)

var server = karma.server; -> var server = karma.Server;

Current export statement of karma:

module.exports = {
  VERSION: constants.VERSION,
  Server: Server,
  runner: runner,
  launcher: launcher,
  server: oldServer
}

exactly what I needed. awesome!

This helped a lot! thanks.

Thanks! Really helpful

Thank you, this is very useful.

But I think you should update now that karma.server has been deprecated

👍

👍

Thank you!!! 🤘

Great Job! Thanks!