Sonata\Component\Delivery\FreeDelivery::getPrice PHP Method

    public function getPrice()
    {
        return 0;
    }

 public function testPriceIsNull()
 {
     $freeDelivery = new FreeDelivery(false);
     $this->assertEquals(0, $freeDelivery->getVatRate());
     $this->assertEquals(0, $freeDelivery->getPrice());
 }