function it_normalizes_empty_price(AbstractProductPrice $price)
 {
     $price->getData()->willReturn('');
     $price->getCurrency()->willReturn('EUR');
     $this->normalize($price, null, ['field_name' => 'price'])->shouldReturn(['price-EUR' => '']);
 }
 function it_normalizes_price(AbstractProductPrice $price)
 {
     $price->getData()->willReturn('12.75');
     $price->getCurrency()->willReturn('EUR');
     $this->normalize($price, 'mongodb_json', [])->shouldReturn(['data' => '12.75', 'currency' => 'EUR']);
 }