test: build before running the tests

Author: aminya

examples/quickstart/package-lock.json

@@ -16,7 +16,7 @@
     "build": "run-s lib:js:build",
     "dev": "run-p lib:watch lib:test:watch",
     "serve": "serve dist -p 8080",
-    "test": "run-s test:lib test:quickstart",
+    "test": "run-s build test:lib test:quickstart",
     "test:lib": "node ./test/test-runner.js",
     "test:quickstart": "(cd examples/quickstart && npm install && npm run test)",
     "lint": "prettier --write **/*.js **/*.ts **/*.json !build/**/* !dist/**/*",