test: Add e2e tests using react-native-harness

.github/workflows/e2e-tests.yml

@@ -0,0 +1,235 @@
+name: E2E Tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  workflow_dispatch:
+
+concurrency:
+  group: e2e-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  e2e-ios:
+    name: E2E Tests (iOS)
+    runs-on: macos-15
+    timeout-minutes: 30
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'yarn'
+
+      - name: Cache CocoaPods
+        uses: actions/cache@v4
+        with:
+          path: |
+            example/showcase/ios/Pods
+            ~/Library/Caches/CocoaPods
+          key: pods-e2e-${{ runner.os }}-${{ hashFiles('**/Podfile.lock') }}
+          restore-keys: |
+            pods-e2e-${{ runner.os }}-
+
+      - name: Install dependencies
+        run: yarn install --immutable
+
+      - name: Build library
+        run: yarn prepare
+
+      - name: Install example dependencies
+        working-directory: example/showcase
+        run: yarn install --immutable
+
+      - name: Install Pods
+        working-directory: example/showcase/ios
+        run: pod install
+
+      - name: List available simulators
+        run: xcrun simctl list devices available
+
+      - name: Boot iOS Simulator
+        run: |
+          # Find iPhone 16 Pro first (available on macos-15), fallback to any iPhone
+          DEVICE_ID=$(xcrun simctl list devices available | grep "iPhone 16 Pro" | head -1 | awk -F '[()]' '{print $2}')
+          if [ -z "$DEVICE_ID" ]; then
+            DEVICE_ID=$(xcrun simctl list devices available | grep "iPhone" | head -1 | awk -F '[()]' '{print $2}')
+          fi
+          echo "Booting simulator: $DEVICE_ID"
+          xcrun simctl boot "$DEVICE_ID" || true
+          echo "SIMULATOR_DEVICE_ID=$DEVICE_ID" >> $GITHUB_ENV
+
+      - name: Build iOS App
+        working-directory: example/showcase
+        run: |
+          xcodebuild -workspace ios/NitroDeviceInfoExample.xcworkspace \
+            -scheme NitroDeviceInfoExample \
+            -configuration Debug \
+            -sdk iphonesimulator \
+            -destination "id=$SIMULATOR_DEVICE_ID" \
+            -derivedDataPath ios/build \
+            build
+
+      - name: Install iOS App
+        run: |
+          APP_PATH=$(find example/showcase/ios/build -name "*.app" -type d | head -1)
+          echo "Installing app from: $APP_PATH"
+          xcrun simctl install "$SIMULATOR_DEVICE_ID" "$APP_PATH"
+
+      - name: Run E2E Tests
+        working-directory: example/showcase
+        run: npx react-native-harness --harnessRunner ios
+        env:
+          CI: true
+
+      - name: Upload test results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: e2e-ios-results
+          path: |
+            example/showcase/jest-results.xml
+            example/showcase/coverage/
+          retention-days: 7
+
+  e2e-android:
+    name: E2E Tests (Android)
+    runs-on: ubuntu-latest
+    timeout-minutes: 45
+    steps:
+      - name: Free Disk Space
+        uses: jlumbroso/free-disk-space@main
+        with:
+          tool-cache: false
+          android: false  # Keep Android SDK
+          dotnet: true
+          haskell: true
+          large-packages: true
+          docker-images: true
+          swap-storage: true
+
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'yarn'
+
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+
+      - name: Enable KVM
+        run: |
+          echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
+          sudo udevadm control --reload-rules
+          sudo udevadm trigger --name-match=kvm
+
+      - name: Cache Gradle
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-e2e-${{ runner.os }}-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            gradle-e2e-${{ runner.os }}-
+
+      - name: Cache AVD
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.android/avd/*
+            ~/.android/adb*
+          key: avd-api-30-${{ runner.os }}
+          restore-keys: |
+            avd-api-30-
+
+      - name: Install dependencies
+        run: yarn install --immutable
+
+      - name: Build library
+        run: yarn prepare
+
+      - name: Install example dependencies
+        working-directory: example/showcase
+        run: yarn install --immutable
+
+      - name: Build Android App
+        working-directory: example/showcase/android
+        run: ./gradlew assembleDebug
+
+      - name: Create AVD and run E2E tests
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: 30
+          arch: x86_64
+          profile: pixel_4
+          target: google_apis
+          disk-size: 2G
+          emulator-options: -no-window -gpu swiftshader_indirect -no-snapshot -noaudio -no-boot-anim -partition-size 2048
+          disable-animations: true
+          working-directory: example/showcase
+          script: |
+            # Install the Android app
+            adb install android/app/build/outputs/apk/debug/app-debug.apk
+            # Run E2E tests
+            npx react-native-harness --harnessRunner android
+        env:
+          CI: true
+
+      - name: Upload test results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: e2e-android-results
+          path: |
+            example/showcase/jest-results.xml
+            example/showcase/coverage/
+          retention-days: 7
+
+  report:
+    name: E2E Test Report
+    needs: [e2e-ios, e2e-android]
+    runs-on: ubuntu-latest
+    if: always()
+    steps:
+      - name: Download iOS results
+        uses: actions/download-artifact@v4
+        with:
+          name: e2e-ios-results
+          path: ios-results
+        continue-on-error: true
+
+      - name: Download Android results
+        uses: actions/download-artifact@v4
+        with:
+          name: e2e-android-results
+          path: android-results
+        continue-on-error: true
+
+      - name: Report Status
+        run: |
+          echo "## E2E Test Results" >> $GITHUB_STEP_SUMMARY
+          echo "" >> $GITHUB_STEP_SUMMARY
+
+          if [ "${{ needs.e2e-ios.result }}" == "success" ]; then
+            echo "- iOS: ✅ Passed" >> $GITHUB_STEP_SUMMARY
+          else
+            echo "- iOS: ❌ Failed" >> $GITHUB_STEP_SUMMARY
+          fi
+
+          if [ "${{ needs.e2e-android.result }}" == "success" ]; then
+            echo "- Android: ✅ Passed" >> $GITHUB_STEP_SUMMARY
+          else
+            echo "- Android: ❌ Failed" >> $GITHUB_STEP_SUMMARY
+          fi

example/showcase/jest.config.js

@@ -0,0 +1,4 @@
+module.exports = {
+  preset: 'react-native-harness',
+  testMatch: ['**/__tests__/**/*.harness.(ts|tsx)'],
+};

example/showcase/metro.config.js

@@ -1,6 +1,7 @@
 const path = require('path');
 const { getDefaultConfig } = require('@react-native/metro-config');
 const { withMetroConfig } = require('react-native-monorepo-config');
+const { withRnHarness } = require('react-native-harness/metro');
 
 const root = path.resolve(__dirname, '../..');
 
@@ -10,7 +11,9 @@ const root = path.resolve(__dirname, '../..');
  *
  * @type {import('metro-config').MetroConfig}
  */
-module.exports = withMetroConfig(getDefaultConfig(__dirname), {
+const baseConfig = withMetroConfig(getDefaultConfig(__dirname), {
   root,
   dirname: __dirname,
 });
+
+module.exports = withRnHarness(baseConfig);

example/showcase/package.json

@@ -8,12 +8,16 @@
     "start": "react-native start",
     "build:android": "react-native build-android --extra-params \"--no-daemon --console=plain -PreactNativeArchitectures=arm64-v8a\"",
     "build:ios": "react-native build-ios --mode Debug",
-    "pod": "cd ios && pod install"
+    "pod": "cd ios && pod install",
+    "test:e2e": "react-native-harness",
+    "test:e2e:ios": "react-native-harness --harnessRunner ios",
+    "test:e2e:android": "react-native-harness --harnessRunner android"
   },
   "dependencies": {
     "react": "19.1.0",
     "react-native": "0.81.1",
-    "react-native-nitro-modules": "^0.31.2"
+    "react-native-nitro-modules": "^0.31.2",
+    "use-sync-external-store": "^1.4.0"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2",
@@ -22,11 +26,16 @@
     "@react-native-community/cli": "20.0.0",
     "@react-native-community/cli-platform-android": "20.0.0",
     "@react-native-community/cli-platform-ios": "20.0.0",
+    "@react-native-harness/platform-android": "^1.0.0-alpha.18",
+    "@react-native-harness/platform-apple": "^1.0.0-alpha.18",
     "@react-native/babel-preset": "0.81.1",
     "@react-native/metro-config": "0.81.1",
     "@react-native/typescript-config": "0.81.1",
+    "@types/jest": "^29.5.14",
     "@types/react": "^19.1.0",
+    "jest-cli": "^29.7.0",
     "react-native-builder-bob": "^0.40.13",
+    "react-native-harness": "^1.0.0-alpha.18",
     "react-native-monorepo-config": "^0.1.9"
   },
   "engines": {

example/showcase/rn-harness.config.mjs

@@ -0,0 +1,40 @@
+import {
+  androidPlatform,
+  androidEmulator,
+} from '@react-native-harness/platform-android';
+import {
+  applePlatform,
+  appleSimulator,
+} from '@react-native-harness/platform-apple';
+
+// CI environment detection - GitHub Actions sets CI=true
+const isCI = process.env.CI === 'true';
+
+/** @type {import('react-native-harness').HarnessConfig} */
+const config = {
+  entryPoint: './index.js',
+  appRegistryComponentName: 'NitroDeviceInfoExample',
+  // CI: 300s timeout for slower Metro startup and simulator response on shared runners
+  // Local: 60s timeout for faster feedback during development
+  bridgeTimeout: isCI ? 300000 : 60000,
+  // CI: Disable app restart between test files to avoid simulator timeout issues
+  // Local: Enable for better test isolation during development
+  resetEnvironmentBetweenTestFiles: !isCI,
+
+  runners: [
+    applePlatform({
+      name: 'ios',
+      device: appleSimulator('iPhone 16 Pro', '18.4'),
+      bundleId: 'nitrodeviceinfo.example',
+    }),
+    androidPlatform({
+      name: 'android',
+      device: androidEmulator('test'),
+      bundleId: 'nitrodeviceinfo.example',
+    }),
+  ],
+
+  defaultRunner: 'ios',
+};
+
+export default config;