karma config for travis

.node-version

@@ -1 +1 @@
-iojs-2
+iojs-v2.4

.travis.yml

@@ -1,5 +1,5 @@
 language: node_js
-node_js: '0.12'
+node_js: 'iojs-v2.4'
 install: npm install
 script: npm test
 sudo: false
@@ -9,6 +9,9 @@ cache:
   - node_modules
 before_cache:
   - rm -rf esvm/*/logs esvm/data_dir
+before_script:
+  - export DISPLAY=:99.0
+  - sh -e /etc/init.d/xvfb start
 notifications:
   email:
   - rashid.khan@elastic.co

Gruntfile.js

@@ -13,6 +13,7 @@ module.exports = function (grunt) {
     testUtilsDir: __dirname + '/src/testUtils',
     configFile: __dirname + '/src/config/kibana.yml',
 
+    karmaBrowser: process.env.TRAVIS ? 'Firefox' : 'Chrome',
     nodeVersion: '0.10.35',
     platforms: ['darwin-x64', 'linux-x64', 'linux-x86', 'windows'],
     services: [ [ 'launchd', '10.9'], [ 'upstart', '1.5'], [ 'systemd', 'default'], [ 'sysv', 'lsb-3.1' ] ],

tasks/config/karma.js

@@ -3,7 +3,9 @@ module.exports = function (grunt) {
     unit: {
       configFile: 'karma.conf.js',
       singleRun: true,
-      browsers: ['Chrome']
+      browsers: [
+        '<%= karmaBrowser %>'
+      ]
     }
   };
 };