PrepareForTest(); $a = new A('a', 2, true); $b = new B(); ClassMapper::MapClass($a, $b); $this->assertEquals('a', $b->a); $this->assertEquals(2, $b->b); } private function PrepareForTest (): void { require_once __DIR__ . '/../data/A.php'; require_once __DIR__ . '/../data/B.php'; require_once __DIR__ . '/../../sources/classes/classMapper.php'; } }