Add unit testing Cloud Functions sample (firebase#1)

README.md

@@ -7,6 +7,8 @@ The repository is broken up by testing strategy:
   * **[Unit testing security rules](unit-test-security-rules/README.md)** - 
   write unit tests for your Realtime Database and Cloud Firestore security
   rules using `mocha` and the `@firebase/testing` library.
+  * **[Unit testing Cloud Functions](unit-test-cloud-functions/README.md)** -
+  write unit tests for your Cloud Functions usiing the `firebase-functions-test` SDK.
   * **[Connect your app to the Emulator Suite](manual-emulator-testing/README.md)** -
   connect the Firebase SDKs in your app directly to the local emulators and manually
   test your app.

firebase.json

@@ -0,0 +1,16 @@
+{
+  "emulators": {
+    "functions": {
+      "port": 5001
+    },
+    "firestore": {
+      "port": 8080
+    },
+    "database": {
+      "port": 9000
+    },
+    "ui": {
+      "enabled": false
+    }
+  }
+}

lerna.json

@@ -1,7 +1,8 @@
 {
   "packages": [
-    "unit-test-security-rules",
-    "manual-emulator-testing"
+    "manual-emulator-testing",
+    "unit-test-cloud-functions/functions",
+    "unit-test-security-rules"
   ],
   "version": "0.0.0"
 }

manual-emulator-testing/README.md

@@ -14,7 +14,7 @@ You will also need the [Firebase CLI](https://firebase.google.com/docs/cli).
 First start the emulators:
 
 ```
-firebase --project=manual-emulator-testing emulators:start 
+firebase --project=fakeproject emulators:start 
 ```
 
 Next visit `http://localhost:5000` in your browser and you should see a 

manual-emulator-testing/public/index.js

@@ -17,7 +17,7 @@
 // Initialze Firestore pointing at our test project
 const db = firebase
   .initializeApp({
-    projectId: "manual-emulator-testing",
+    projectId: "fakeproject",
   })
   .firestore();