Add helper to reset the test Firebase project

composer.json

@@ -104,6 +104,9 @@
         "rector-fix": [
             "vendor/bin/rector"
         ],
+        "reset-project": [
+            "tests/bin/reset-project"
+        ],
         "test": [
             "@analyze",
             "@test-dependencies",

tests/bin/reset-project

@@ -0,0 +1,40 @@
+#!/usr/bin/env php
+<?php
+
+declare(strict_types=1);
+
+require __DIR__ . '/../../vendor/autoload.php';
+
+use Kreait\Firebase\Auth\UserRecord;
+use Kreait\Firebase\Database\RuleSet;
+use Kreait\Firebase\Factory;
+use Kreait\Firebase\Util;
+
+// Unsafe is needed because google/auth uses getenv/putenv to determine the Application Credentials
+$dotenv = Dotenv\Dotenv::createUnsafeImmutable(__DIR__.'/..');
+$dotenv->safeLoad();
+$dotenv->required('GOOGLE_APPLICATION_CREDENTIALS');
+
+$factory = (new Factory())->withDatabaseUri(Util::getenv('TEST_FIREBASE_RTDB_URI'));
+
+$auth = $factory->createAuth();
+$db = $factory->createDatabase();
+
+echo 'Resetting database rules... ';
+$factory->createDatabase()->updateRules(RuleSet::private());
+echo 'DONE'.PHP_EOL;
+
+echo 'Purging database... ';
+$factory->createDatabase()->getReference('/')->remove();
+echo 'DONE'.PHP_EOL;
+
+echo 'Purging auth users... ';
+do {
+    $users = iterator_to_array($auth->listUsers());
+    $uids = array_map(fn(UserRecord $record) => $record->uid, $users);
+
+    if (count($uids) > 0) {
+        $auth->deleteUsers($uids, true);
+    }
+} while (count($uids) > 0);
+echo 'DONE'.PHP_EOL;