public function testCalculatePrice()
{
$product = new ProductTest();
$product->setPrice(42);
$currency = new Currency();
$currency->setLabel('EUR');
$provider = $this->createNewProductProvider();
$this->assertEquals(42 * 4, $provider->calculatePrice($product, $currency, false, 4));
$this->assertEquals(42, $provider->calculatePrice($product, $currency, false));
}