Build: Added karma-parallel to run tests in parallel (fixes #44) (#46)

* Build: Added karma-parallel to run tests in parallel (fixes #44)

* Fix: Force multiple executors in karma config

* Build: Test usig xvfb for travis

* Fix: Added xvfb service

* Revert: xvfb since we are using ChromeHeadless and puppeteer

build/karma/karma.config.js

@@ -29,14 +29,18 @@ module.exports = function(config) {
             "../../node_modules/@babel/polyfill/dist/polyfill.js",
             "../webpack/tests.webpack.js"
         ],
-        frameworks: ["jasmine"],
+        frameworks: ["parallel", "jasmine"],
         preprocessors: {
             "../webpack/tests.webpack.js": ["webpack", "sourcemap"]
         },
         reporters: ["progress", "coverage"],
         webpackMiddleware: {
             stats: "errors-only"
         },
+        parallelOptions: {
+            executors: 4,
+            shardStrategy: "round-robin"
+        },
         webpack: {
             mode: "development",
             devtool: "inline-source-map",

package.json

@@ -79,6 +79,7 @@
     "karma-chrome-launcher": "^2.2.0",
     "karma-coverage": "^1.1.2",
     "karma-jasmine": "^2.0.1",
+    "karma-parallel": "^0.3.1",
     "karma-sourcemap-loader": "^0.3.7",
     "karma-webpack": "^3.0.5",
     "less": "^3.9.0",