karma-build-mocha.conf.js
module.exports = function(config) {
require('./karma-build.conf.js')(config);
config.plugins.push(require('karma-mocha'));
config.frameworks.push('mocha');
config.client.mocha = {
timeout: 5000 // copied timeout for Jasmine in WebSocket.spec (otherwise Mochas default timeout
// at 2 sec is to low for the tests)
};
};