Adds karma conf

Author: hoonji

karma.conf.js

@@ -0,0 +1,22 @@
+module.exports = function(config) {
+  config.set({
+    browsers: ['ChromeHeadlessCI'],
+    frameworks: ['jasmine'],
+    files: [
+      './src/**/*.spec.ts'
+    ],
+    customLaunchers: {
+      ChromeHeadlessCI: {
+        base: 'ChromeHeadless',
+        flags: [
+          '--no-sandbox',
+          '--disable-gpu',
+          '--remote-debugging-port=9222'
+        ]
+      }
+    },
+
+    singleRun: true
+  });
+};
+

package.json

@@ -7,6 +7,7 @@
     "build": "ng build",
     "watch": "ng build --watch --configuration development",
     "test": "ng test",
+    "test-headless": "karma start karma.conf.js",
     "clean-config": "node clean-backend.js",
     "inject-backend": "node set-backend.js",
     "serve": "npm run clean-config && npm run inject-backend && ng serve"