First test added

package.json

@@ -7,7 +7,8 @@
     "test": "test"
   },
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "mocha",
+    "buildParser": "jison parser/jaz.jison"
   },
   "keywords": [
     "zkSnarks",
@@ -25,6 +26,7 @@
     "optimist": "^0.6.1"
   },
   "devDependencies": {
+    "chai": "^4.1.2",
     "eslint": "^5.0.1",
     "eslint-plugin-mocha": "^5.0.0"
   }