chore(test) add CI check

Author: robwormald

karma.conf.js

@@ -1,5 +1,6 @@
 // Karma configuration
 // Generated on Wed Jan 06 2016 19:58:14 GMT-0800 (PST)
+var argv = require('yargs').argv;
 
 module.exports = function(config) {
   config.set({
@@ -70,7 +71,7 @@ module.exports = function(config) {
 
     // Continuous Integration mode
     // if true, Karma captures browsers, runs the tests and exits
-    singleRun: false,
+    singleRun: argv.ci,
 
     // Concurrency level
     // how many browser should be started simultaneous

package.json

@@ -4,7 +4,8 @@
   "description": "RxJS + IndexedDB for Angular2",
   "main": "dist/database.js",
   "scripts": {
-    "test": "karma start",
+    "test": "karma start --ci",
+    "watch": "karma start",
     "build": "npm run build_test",
     "build_test": "tsc -p ./spec",
     "clean": "rm -rf dist",
@@ -30,6 +31,7 @@
     "reflect-metadata": "^0.1.2",
     "systemjs": "^0.19.11",
     "typescript": "^1.7.5",
+    "yargs": "^3.31.0",
     "zone.js": "^0.5.10"
   },
   "typings": "dist/database.d.ts"