public function testFinal()
{
$class = new PhpClass();
$this->assertFalse($class->isFinal());
$this->assertSame($class, $class->setFinal(true));
$this->assertTrue($class->isFinal());
$this->assertSame($class, $class->setFinal(false));
$this->assertFalse($class->isFinal());
}