Update package.json

Author: ahnafnafee

package.json

@@ -72,6 +72,7 @@
 		"compile": "tsc -p ./",
 		"lint": "eslint src --ext ts",
 		"watch": "tsc -watch -p ./",
+		"pretest": "npm run compile",
 		"test": "node ./out/test/runTest.js"
 	},
 	"devDependencies": {