test(e2e): make all contentious e2e resources configurable

.github/workflows/scripts/firebase.emulator.template.json

@@ -0,0 +1,26 @@
+{
+  "name": "react-native-firebase-testing",
+  "firestore": {
+    "rules": "firestore.rules",
+    "indexes": "firestore.indexes.json"
+  },
+  "functions": {
+    "predeploy": ["cd functions && yarn", "cd functions && yarn --cwd \"$RESOURCE_DIR\" build"],
+    "source": "functions",
+    "ignore": [".yarn", "yarn.lock", "*.log", "node_modules"]
+  },
+  "database": {
+    "rules": "database.rules"
+  },
+  "storage": {
+    "rules": "storage.rules"
+  },
+  "emulators": {
+    "auth": { "port": 9099 },
+    "database": { "port": 9000 },
+    "firestore": { "port": 8080 },
+    "functions": { "port": 5001 },
+    "storage": { "port": 9199 },
+    "ui": { "enabled": false }
+  }
+}

.gitignore

@@ -548,6 +548,8 @@ google-services.json
 GoogleService-Info.plist
 
 tests/harness.overrides.js
+tests/e2e-slots.env.json
+.github/workflows/scripts/.e2e-emulator-*.json
 
 # RNFB TurboModule codegen — misplaced iOS provider stubs under Android output paths
 # (NewArch-AD-5: okf-bundle/new-architecture/architecture-decisions.md — commit generated

okf-bundle/testing/running-e2e.md

@@ -58,7 +58,7 @@ yarn tests:macos:test-cover
 
 5. **Report locations** — [Coverage design](coverage-design.md).
 
-6. **One e2e at a time** — never overlap `:test-cover` runs on one host. All platforms share Metro `:8081` and the test-runner WebSocket port (default **8090**); parallel runs race on coverage/device/emulator state. Every run starts after [clean pre-flight](#pre-flight-is-the-host-clear-to-start). Log triage for port/orchestration markers: [test-runner host orchestration](#test-runner-host-orchestration-log-triage-only).
+6. **One e2e at a time (default)** — never overlap `:test-cover` runs on one host unless each run uses a distinct port/device slot via [configurable e2e environment](#configurable-e2e-environment). Serial runs share Metro `:8081` and the test-runner WebSocket port (default **8090**); parallel runs race on coverage/device/emulator state without slotted env. Every run starts after [clean pre-flight](#pre-flight-is-the-host-clear-to-start). Log triage for port/orchestration markers: [test-runner host orchestration](#test-runner-host-orchestration-log-triage-only).
 
 7. **No source edits during e2e** — wait/cancel cleanly before editing `packages/**`, `tests/**`, or bundle-affecting OKF docs. Saves can hot reload/rebundle and invalidate tests/coverage.
 
@@ -502,6 +502,29 @@ See also: [unit-focused-tier loop](#unit-focused-tier-iteration-loop), [dispatch
 - **adb empty** — `adb kill-server && adb start-server && adb devices`
 - **Stale processes** — one Metro (`:8081`), one emulator set (`:8080`, `:9099`, `:9000`, `:4400`, …). Stray listener on `:8090` after a run → [pre-flight recovery](#pre-flight-recovery), then restart background services with [Rules §1–2](#rules) (`yarn tests:packager:jet`, `yarn tests:emulator:start`).
 
+<a id="configurable-e2e-environment"></a>
+
+### Configurable e2e environment
+
+Serial e2e uses committed defaults (Metro `:8081`, Jet `:8090`, emulators `:8080` / `:9099` / …). Slotted parallel runs set per-platform ports via env (e.g. `RNFB_IOS_JET_PORT`, `RNFB_MACOS_JET_PORT`). To run multiple platform jobs on one host — or to pin a non-default slot — export env vars **before** Metro/native build and `:test-cover`. Unset vars keep legacy serial behaviour.
+
+| Variable | Purpose |
+|----------|---------|
+| `RCT_METRO_PORT`, `RNFB_METRO_PORT` | Metro bundler port (global fallback) |
+| `RNFB_{ANDROID,IOS,MACOS}_METRO_PORT` | Per-platform Metro port |
+| `JET_REMOTE_PORT`, `JET_METRO_PORT` | Test-runner WebSocket + Metro hint (global) |
+| `RNFB_{ANDROID,IOS,MACOS}_JET_PORT` | Per-platform Jet WebSocket port |
+| `RNFB_JET_CONTROL_PORT` | Jet HTTP control plane (default `JET_REMOTE_PORT + 1`) |
+| `RNFB_{ANDROID,IOS,MACOS}_EMULATOR_{FIRESTORE,AUTH,DATABASE,FUNCTIONS,STORAGE,HUB,LOGGING}_PORT` | Per-platform Firebase emulator suite |
+| `RNFB_DETOX_ANDROID_CONFIG`, `RNFB_DETOX_IOS_CONFIG` | Detox configuration name (e.g. `android.emu.debug.slot1`, `ios.sim.debug.slot1`) |
+| `RNFB_E2E_PLATFORM`, `RNFB_E2E_SLOT` | Active platform label and slot index for orchestration scripts |
+| `RNFB_ANDROID_AVD`, `RNFB_IOS_SIMULATOR`, `RNFB_ANDROID_EMULATOR_BOOT_ARGS` | Device selection overrides |
+| `ORG_GRADLE_PROJECT_reactNativeDevServerPort` | Android Gradle Metro port (set to match `RNFB_ANDROID_METRO_PORT`) |
+| `SIMCTL_CHILD_RCT_METRO_PORT` | iOS simulator child Metro port |
+| `RNFB_E2E_DEBUG` | Verbose `[rnfb-e2e]` port resolution logging in app helpers |
+
+Helper scripts (not canonical `:test-cover` entrypoints): `scripts/e2e/start-emulator-slotted.sh`, `yarn tests:e2e:setup-android-avds`, `yarn tests:e2e:setup-ios-sims`.
+
 ### Android emulator gray screen / Quick Boot (blocking)
 
 Detox's default emulator launch **restores the AVD Quick Boot snapshot** unless told otherwise. On `TestingAVD` that can leave the device **`offline` on a gray screen** — `adb devices` shows `emulator-XXXX offline` and Detox hangs on `wait-for-device`.

package.json

@@ -41,27 +41,27 @@
     "tests:emulator:start:windows": "yarn tests:emulator:prepare && cd ./.github/workflows/scripts && ./start-firebase-emulator.bat --no-daemon",
     "tests:emulator:start-ci": "yarn tests:emulator:prepare && cd ./.github/workflows/scripts && ./start-firebase-emulator.sh",
     "tests:android:build": "run-script-os",
-    "tests:android:build:default": "cd tests && yarn detox build --configuration android.emu.debug",
+    "tests:android:build:default": "bash -c 'cd tests && yarn detox build --configuration \"${RNFB_DETOX_ANDROID_CONFIG:-android.emu.debug}\"'",
     "tests:android:build:windows": "cd tests && yarn detox build --configuration android.emu.debug.windows",
     "tests:android:build:release": "cd tests && yarn detox build --configuration android.emu.release",
     "tests:android:manual": "cd tests && yarn react-native run-android",
-    "tests:android:test": "cd tests && yarn detox test --configuration android.emu.debug",
+    "tests:android:test": "bash -c 'cd tests && yarn detox test --configuration \"${RNFB_DETOX_ANDROID_CONFIG:-android.emu.debug}\"'",
     "tests:android:test:debug": "cd tests && yarn detox test --configuration android.emu.debug --inspect",
     "tests:android:test-reuse": "cd tests && yarn detox test --configuration android.emu.debug --reuse",
-    "tests:android:test-cover": "cd tests && yarn detox test --configuration android.emu.debug --loglevel verbose",
+    "tests:android:test-cover": "bash -c 'cd tests && yarn detox test --configuration \"${RNFB_DETOX_ANDROID_CONFIG:-android.emu.debug}\" --loglevel verbose'",
     "tests:android:test-cover-reuse": "cd tests && yarn detox test --configuration android.emu.debug --reuse",
     "tests:android:pull-native-coverage": "node tests/scripts/pull-native-coverage.js --android-pull",
     "tests:android:post-e2e-coverage": "node tests/scripts/pull-native-coverage.js --android-post-e2e",
     "tests:android:test:jacoco-report": "cd tests/android && ./gradlew jacocoAndroidTestReport",
-    "tests:ios:build": "cd tests && yarn detox build --configuration ios.sim.debug",
+    "tests:ios:build": "bash -c 'cd tests && yarn detox build --configuration \"${RNFB_DETOX_IOS_CONFIG:-ios.sim.debug}\"'",
     "tests:ios:build:release": "cd tests && yarn detox build --configuration ios.sim.release",
     "tests:ios:detox-framework-cache:rebuild": "cd tests && yarn detox rebuild-framework-cache",
     "tests:ios:manual": "cd tests && SIMCTL_CHILD_GULGeneratedClassDisposeDisabled=1 CC=clang CPLUSPLUS=clang++ LD=clang LDPLUSPLUS=clang++ yarn react-native run-ios",
     "tests:ios:test": "cd tests && SIMCTL_CHILD_GULGeneratedClassDisposeDisabled=1 yarn detox test --configuration ios.sim.debug --loglevel warn",
     "tests:ios:test:release": "cd tests && SIMCTL_CHILD_GULGeneratedClassDisposeDisabled=1 yarn detox test --configuration ios.sim.release --loglevel warn",
     "tests:ios:test:debug": "cd tests && SIMCTL_CHILD_GULGeneratedClassDisposeDisabled=1 yarn detox test --configuration ios.sim.debug --loglevel warn --inspect",
     "tests:ios:test-reuse": "cd tests && SIMCTL_CHILD_GULGeneratedClassDisposeDisabled=1 yarn detox test --configuration ios.sim.debug --reuse --loglevel warn",
-    "tests:ios:test-cover": "cd tests && SIMCTL_CHILD_GULGeneratedClassDisposeDisabled=1 yarn detox test --configuration ios.sim.debug --loglevel verbose",
+    "tests:ios:test-cover": "bash -c 'cd tests && SIMCTL_CHILD_GULGeneratedClassDisposeDisabled=1 yarn detox test --configuration \"${RNFB_DETOX_IOS_CONFIG:-ios.sim.debug}\" --loglevel verbose'",
     "tests:ios:test-cover-reuse": "cd tests && SIMCTL_CHILD_GULGeneratedClassDisposeDisabled=1 yarn detox test --configuration ios.sim.debug --reuse --loglevel warn",
     "tests:ios:test:process-coverage": "node tests/scripts/process-ios-native-coverage.js",
     "tests:ios:test-cover-and-process": "yarn tests:ios:test-cover && yarn tests:ios:test:process-coverage",
@@ -71,6 +71,8 @@
     "tests:macos:manual": "cd tests && yarn react-native run-macos",
     "tests:macos:test": "cd tests && npx jet --target=macos --coverage",
     "tests:macos:test-cover": "cd tests && npx jet --target=macos --coverage",
+    "tests:e2e:setup-android-avds": "bash ./scripts/e2e/create-android-avds.sh",
+    "tests:e2e:setup-ios-sims": "bash ./scripts/e2e/create-ios-simulators.sh",
     "format:js": "prettier --write \"packages/**/*.{js,ts,tsx}\"",
     "format:markdown": "prettier --write \"docs/**/*.md[x]\""
   },

packages/ai/lib/requests/request.ts

@@ -59,11 +59,26 @@ export class RequestUrl {
         'Running VertexAI in test environment, pointing to Firebase Functions emulator URL',
       );
       const isAndroid = Platform.OS === 'android';
+      let fnHost = isAndroid ? '10.0.2.2' : '127.0.0.1';
+      let fnPort = 5001;
+
+      const platformKey = isAndroid
+        ? 'ANDROID'
+        : (Platform.OS as string) === 'macos'
+          ? 'MACOS'
+          : 'IOS';
+      const envPort = process.env[`RNFB_${platformKey}_EMULATOR_FUNCTIONS_PORT`];
+      if (envPort) {
+        const parsed = parseInt(envPort, 10);
+        if (Number.isFinite(parsed)) {
+          fnPort = parsed;
+        }
+      }
 
       if (this.stream) {
-        emulatorUrl = `http://${isAndroid ? '10.0.2.2' : '127.0.0.1'}:5001/react-native-firebase-testing/us-central1/testFetchStream`;
+        emulatorUrl = `http://${fnHost}:${fnPort}/react-native-firebase-testing/us-central1/testFetchStream`;
       } else {
-        emulatorUrl = `http://${isAndroid ? '10.0.2.2' : '127.0.0.1'}:5001/react-native-firebase-testing/us-central1/testFetch`;
+        emulatorUrl = `http://${fnHost}:${fnPort}/react-native-firebase-testing/us-central1/testFetch`;
       }
       return emulatorUrl;
     }

packages/app/e2e/config.e2e.js

@@ -47,8 +47,9 @@ describe('config', function () {
     // NOTE: "preferencesClearAll" clears Firestore settings. Set DB as emulator again.
     after(async function () {
       const { connectFirestoreEmulator, getFirestore } = firestoreModular;
+      const { getE2eEmulatorPort } = require('../../app/e2e/helpers');
       if (Platform.other) return;
-      connectFirestoreEmulator(getFirestore(), 'localhost', 8080);
+      connectFirestoreEmulator(getFirestore(), 'localhost', getE2eEmulatorPort('firestore'));
     });
 
     it('should set bool values', async function () {

packages/app/e2e/helpers.js

@@ -8,3 +8,104 @@ exports.getE2eEmulatorHost = function getE2eEmulatorHost() {
   }
   return '127.0.0.1';
 };
+
+function platformKey() {
+  if (Platform.other) {
+    return 'macos';
+  }
+  if (Platform.android) {
+    return 'android';
+  }
+  return 'ios';
+}
+
+const DEFAULT_EMULATOR = {
+  firestore: 8080,
+  auth: 9099,
+  database: 9000,
+  functions: 5001,
+  storage: 9199,
+};
+
+const DEFAULT_JET_SERIAL = 8090;
+
+function e2eDebug(msg, extra) {
+  if (process.env.RNFB_E2E_DEBUG !== '1') {
+    return;
+  }
+  const pk = platformKey();
+  // eslint-disable-next-line no-console
+  console.log(`[rnfb-e2e] platform=${pk} ${msg}`, extra || '');
+}
+
+function prefixedEmulatorPort(service) {
+  const pk = platformKey();
+  const key = `RNFB_${pk.toUpperCase()}_EMULATOR_${service.toUpperCase()}_PORT`;
+  if (process.env[key]) {
+    const n = parseInt(process.env[key], 10);
+    if (Number.isFinite(n)) {
+      return n;
+    }
+  }
+  return null;
+}
+
+exports.getE2ePlatformKey = platformKey;
+
+exports.getE2eEmulatorPort = function getE2eEmulatorPort(service) {
+  const prefixed = prefixedEmulatorPort(service);
+  if (prefixed) {
+    e2eDebug(`emulator.${service} from env`, prefixed);
+    return prefixed;
+  }
+  const fallback = DEFAULT_EMULATOR[service] ?? 8080;
+  e2eDebug(`emulator.${service} default`, fallback);
+  return fallback;
+};
+
+exports.getJetRemotePort = function getJetRemotePort() {
+  if (process.env.JET_REMOTE_PORT) {
+    const n = parseInt(process.env.JET_REMOTE_PORT, 10);
+    if (Number.isFinite(n)) {
+      return n;
+    }
+  }
+  const pk = platformKey();
+  const prefixed = process.env[`RNFB_${pk.toUpperCase()}_JET_PORT`];
+  if (prefixed) {
+    const n = parseInt(prefixed, 10);
+    if (Number.isFinite(n)) {
+      return n;
+    }
+  }
+  return DEFAULT_JET_SERIAL;
+};
+
+exports.getJetRemoteUrl = function getJetRemoteUrl() {
+  const host = exports.getE2eEmulatorHost();
+  return `ws://${host}:${exports.getJetRemotePort()}`;
+};
+
+exports.getMetroPort = function getMetroPort() {
+  if (process.env.RCT_METRO_PORT) {
+    const n = parseInt(process.env.RCT_METRO_PORT, 10);
+    if (Number.isFinite(n)) {
+      return n;
+    }
+  }
+  if (process.env.RNFB_METRO_PORT) {
+    const n = parseInt(process.env.RNFB_METRO_PORT, 10);
+    if (Number.isFinite(n)) {
+      return n;
+    }
+  }
+  const pk = platformKey();
+  const prefixed = process.env[`RNFB_${pk.toUpperCase()}_METRO_PORT`];
+  if (prefixed) {
+    const n = parseInt(prefixed, 10);
+    if (Number.isFinite(n)) {
+      return n;
+    }
+  }
+  return 8081;
+};

packages/auth/e2e/emailLink.e2e.js

@@ -1,4 +1,9 @@
 const { getLastOob, signInUser } = require('./helpers');
+const { getE2eEmulatorHost, getMetroPort } = require('../../app/e2e/helpers');
+
+function emailLinkContinueUrl(random) {
+  return `http://${getE2eEmulatorHost()}:${getMetroPort()}/authLinkFoo?bar=${random}`;
+}
 
 describe('auth() -> emailLink Provider', function () {
   beforeEach(async function () {
@@ -43,7 +48,7 @@ describe('auth() -> emailLink Provider', function () {
         const auth = getAuth();
         const random = Utils.randString(12, '#aa');
         const email = `${random}@${random}.com`;
-        const continueUrl = `http://${Platform.android ? '10.0.2.2' : '127.0.0.1'}:8081/authLinkFoo?bar=${random}`;
+        const continueUrl = emailLinkContinueUrl(random);
         const actionCodeSettings = {
           url: continueUrl,
           handleCodeInApp: true,
@@ -97,7 +102,7 @@ describe('auth() -> emailLink Provider', function () {
       const auth = getAuth();
       const random = Utils.randString(12, '#aa');
       const email = `${random}@${random}.com`;
-      const continueUrl = `http://${Platform.android ? '10.0.2.2' : '127.0.0.1'}:8081/authLinkFoo?bar=${random}`;
+      const continueUrl = emailLinkContinueUrl(random);
       const actionCodeSettings = {
         url: continueUrl,
         handleCodeInApp: true,

packages/auth/e2e/helpers.js

@@ -1,5 +1,9 @@
 /* eslint-disable no-console */
-const { getE2eTestProject, getE2eEmulatorHost } = require('../../app/e2e/helpers');
+const {
+  getE2eTestProject,
+  getE2eEmulatorHost,
+  getE2eEmulatorPort,
+} = require('../../app/e2e/helpers');
 
 // Call HTTP REST API URL and return JSON response parsed into object
 const callRestApi = async function callRestAPI(url, returnRedirectUrl = false) {
@@ -27,7 +31,8 @@ exports.clearAllUsers = async function clearAllUsers() {
     const response = await fetch(
       'http://' +
         getE2eEmulatorHost() +
-        ':9099' +
+        ':' +
+        getE2eEmulatorPort('auth') +
         '/emulator/v1/projects/' +
         getE2eTestProject() +
         '/accounts',
@@ -51,7 +56,8 @@ exports.disableUser = async function disableUser(userId) {
     const response = await fetch(
       'http://' +
         getE2eEmulatorHost() +
-        ':9099' +
+        ':' +
+        getE2eEmulatorPort('auth') +
         '/identitytoolkit.googleapis.com/v1/projects/' +
         getE2eTestProject() +
         '/accounts:update',
@@ -77,7 +83,9 @@ async function getLastSmsCode(specificPhone) {
     const getSmsCodesUrl =
       'http://' +
       getE2eEmulatorHost() +
-      ':9099/emulator/v1/projects/' +
+      ':' +
+      getE2eEmulatorPort('auth') +
+      '/emulator/v1/projects/' +
       getE2eTestProject() +
       '/verificationCodes';
 
@@ -117,7 +125,9 @@ async function getLastOob(specificEmail) {
     const getOobCodesUrl =
       'http://' +
       getE2eEmulatorHost() +
-      ':9099/emulator/v1/projects/' +
+      ':' +
+      getE2eEmulatorPort('auth') +
+      '/emulator/v1/projects/' +
       getE2eTestProject() +
       '/oobCodes';
 
@@ -154,7 +164,9 @@ exports.resetPassword = async function resetPassword(oobCode, newPassword) {
   const resetPasswordUrl =
     'http://' +
     getE2eEmulatorHost() +
-    ':9099/emulator/action?mode=resetPassword&lang=en&oobCode=' +
+    ':' +
+    getE2eEmulatorPort('auth') +
+    '/emulator/action?mode=resetPassword&lang=en&oobCode=' +
     oobCode +
     '&apiKey=fake-api-key&newPassword=' +
     newPassword;
@@ -165,7 +177,9 @@ async function verifyEmail(oobCode) {
   const verifyEmailUrl =
     'http://' +
     getE2eEmulatorHost() +
-    ':9099/emulator/action?mode=verifyEmail&lang=en&oobCode=' +
+    ':' +
+    getE2eEmulatorPort('auth') +
+    '/emulator/action?mode=verifyEmail&lang=en&oobCode=' +
     oobCode +
     '&apiKey=fake-api-key';
   return await callRestApi(verifyEmailUrl);

packages/database/e2e/helpers.js

@@ -13,7 +13,11 @@ const testingUtils = require('@firebase/rules-unit-testing');
 // eslint-disable-next-line no-console
 console.warn = originalConsoleWarn;
 
-const { getE2eTestProject, getE2eEmulatorHost } = require('../../app/e2e/helpers');
+const {
+  getE2eTestProject,
+  getE2eEmulatorHost,
+  getE2eEmulatorPort,
+} = require('../../app/e2e/helpers');
 
 // TODO make more unique?
 const ID = Date.now();
@@ -78,7 +82,7 @@ exports.seed = function seed(path) {
         databaseName: DB_NAME,
         rules: JSON.stringify(DB_RULES),
         host: getE2eEmulatorHost(),
-        port: 9000,
+        port: getE2eEmulatorPort('database'),
       },
     }),
   ]);