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app/Support/IsolatedQaDatabase.php

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+<?php
+
+namespace App\Support;
+
+use Illuminate\Support\Facades\DB;
+
+final class IsolatedQaDatabase
+{
+    public static function allowsSchemaChanges(): bool
+    {
+        $connection = config('database.connections.pgsql');
+        if (! app()->environment('testing') || config('database.default') !== 'pgsql'
+            || ! in_array($connection['host'], ['127.0.0.1', 'localhost'], true)
+            || (string) $connection['port'] !== '55441' || ! empty($connection['url'])
+            || ! str_ends_with($connection['database'], '_test')) {
+            return false;
+        }
+
+        $identity = DB::selectOne('SELECT current_database() AS database, inet_server_port() AS port');
+
+        return $identity->database === $connection['database'] && (int) $identity->port === 55441;
+    }
+}