Adds stencil test dependencies

package.json

@@ -40,6 +40,8 @@
   "devDependencies": {
     "@stencil/eslint-plugin": "^0.3.1",
     "@stencil/sass": "^1.3.2",
+    "@types/jest": "25.2.3",
+    "@types/puppeteer": "2.0.1",
     "@typescript-eslint/eslint-plugin": "^2.28.0",
     "@typescript-eslint/parser": "^2.28.0",
     "bluebird": "^3.7.2",
@@ -57,7 +59,10 @@
     "http-proxy": "^1.18.1",
     "http-proxy-middleware": "^1.0.4",
     "husky": "^4.2.5",
+    "jest": "26.0.1",
+    "jest-cli": "26.0.1",
     "prettier": "2.0.5",
+    "puppeteer": "2.1.1",
     "recursive-copy": "^2.0.10",
     "through2": "^3.0.1",
     "workbox-build": "4.3.1"

tsconfig.json

@@ -13,6 +13,6 @@
     "jsx": "react",
     "jsxFactory": "h"
   },
-  "include": ["src", "types/jsx.d.ts"],
+  "include": ["src", "test", "types/jsx.d.ts"],
   "exclude": ["node_modules", "stencil.config.ts"]
 }