Add test for class extension of PDO subclass

Author: jnoordsij

tests/Php84/PdoTest.php

@@ -144,6 +144,15 @@ public function testSqliteConnect()
         $this->assertInstanceOf(\Pdo\Sqlite::class, $sqlite);
     }
 
+    /**
+     * @requires extension pdo_sqlite
+     */
+    public function testSqliteConnectOnClassExtensions()
+    {
+        $sqlite = ExtendedPdoSqlite::connect("sqlite:");
+        $this->assertInstanceOf(\Pdo\Sqlite::class, $sqlite);
+    }
+
     /**
      * @requires extension pdo_dblib
      */
@@ -231,3 +240,7 @@ public function testSqliteConstants()
         $this->assertSame(2048, \Pdo\Sqlite::DETERMINISTIC);
     }
 }
+
+class ExtendedPdoSqlite extends \Pdo\Sqlite
+{
+}