Add verbose flag to jest.

package.json

@@ -17,7 +17,7 @@
     "typescript": "^3.6.3"
   },
   "scripts": {
-	"test": "jest --coverage",
+	"test": "jest --verbose --coverage",
 	"lint": "tslint -c tslint.json 'src/**/*.ts'",
 	"build": "tsc",
     "prepublishOnly": "tsc"