test: Add tests for firebaseui-core

Author: dackers86

.github/workflows/integration-tests.yml

@@ -0,0 +1,61 @@
+name: Integration Tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  integration-test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [22.x]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Setup Java for Firebase Emulator
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: "17"
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v2
+        with:
+          version: 8
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - name: Install Firebase Tools
+        run: npm install -g firebase-tools
+
+      - name: Create Firebase config
+        run: |
+          cat > firebase.json << EOF
+          {
+            "emulators": {
+              "auth": {
+                "port": 9099
+              },
+              "ui": {
+                "enabled": false
+              }
+            }
+          }
+          EOF
+
+      - name: Start Firebase Emulator and Run Integration Tests
+        run: |
+          firebase emulators:start &
+          sleep 10
+          pnpm --filter @firebase-ui/core test:integration

.github/workflows/unit-tests.yml

@@ -0,0 +1,34 @@
+name: Unit Tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  unit-test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [22.x]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v2
+        with:
+          version: 8
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - name: Run unit tests
+        run: pnpm --filter @firebase-ui/core test

packages/firebaseui-core/.gitignore

@@ -0,0 +1,24 @@
+# Firebase
+firebase-debug.log
+ui-debug.log
+.firebaserc
+
+# Build output
+dist/
+*.tgz
+
+# Dependencies
+node_modules/
+
+# Environment variables
+.env*
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db 

packages/firebaseui-core/firebase.json

@@ -0,0 +1,12 @@
+{
+  "emulators": {
+    "auth": {
+      "port": 9099
+    },
+    "ui": {
+      "enabled": true,
+      "port": 4000
+    },
+    "singleProjectMode": true
+  }
+}

packages/firebaseui-core/package.json

@@ -21,8 +21,13 @@
     "build:local": "pnpm run build && pnpm pack",
     "dev": "tsup --watch",
     "lint": "tsc --noEmit",
-    "format": "prettier --write \"src/**/*.ts\"",
-    "clean": "rimraf dist"
+    "format": "prettier --write \"src/**/*.ts\" \"tests/**/*.ts\"",
+    "clean": "rimraf dist",
+    "test": "vitest run tests/unit",
+    "test:watch": "vitest tests/unit",
+    "test:integration": "vitest run tests/integration",
+    "test:integration:watch": "vitest tests/integration",
+    "test:all": "vitest run"
   },
   "keywords": [
     "firebase",
@@ -40,9 +45,14 @@
     "zod": "^3.24.1"
   },
   "devDependencies": {
-    "typescript": "^5.7.3",
-    "tsup": "^8.0.1",
+    "@types/jsdom": "^21.1.7",
+    "firebase": "^11.0.0",
+    "jsdom": "^26.0.0",
     "prettier": "^3.1.1",
-    "rimraf": "^6.0.1"
+    "rimraf": "^6.0.1",
+    "tsup": "^8.0.1",
+    "typescript": "^5.7.3",
+    "vite": "^6.2.0",
+    "vitest": "^3.0.7"
   }
 }

packages/firebaseui-core/src/auth.ts

@@ -18,17 +18,9 @@ import {
   RecaptchaVerifier,
   AuthProvider,
 } from 'firebase/auth';
-import { FirebaseUIError } from './errors';
+import { handleFirebaseError } from './errors';
 import { type TranslationsConfig } from './translations';
 
-function handleFirebaseError(error: any, translations?: TranslationsConfig, language?: string): never {
-  // TODO: Debug why instanceof FirebaseError is not working
-  if (error?.name === 'FirebaseError') {
-    throw new FirebaseUIError(error, translations, language);
-  }
-  throw new FirebaseUIError({ code: 'unknown' }, translations, language);
-}
-
 export async function fuiSignInWithEmailAndPassword(
   auth: Auth,
   email: string,

packages/firebaseui-core/src/errors.ts

@@ -13,3 +13,11 @@ export class FirebaseUIError extends Error {
     this.code = errorCode;
   }
 }
+
+export function handleFirebaseError(error: any, translations?: TranslationsConfig, language?: string): never {
+  // TODO: Debug why instanceof FirebaseError is not working
+  if (error?.name === 'FirebaseError') {
+    throw new FirebaseUIError(error, translations, language);
+  }
+  throw new FirebaseUIError({ code: 'unknown' }, translations, language);
+}