/**
  * Callback function that creates a tax details item with applied taxes from a quote details item for testing.
  *
  * @param QuoteDetailsItem $item
  * @return Data\TaxDetails\Item
  */
 public function createTaxDetailsItemWithAppliedTaxes(QuoteDetailsItem $item)
 {
     $appliedTaxRateBuilder = $this->taxDetailsBuilder->getAppliedTaxBuilder();
     $taxRateBuilder = $appliedTaxRateBuilder->getAppliedTaxRateBuilder();
     $rate = $taxRateBuilder->setPercent(self::TAX)->setCode('TAX')->setTitle('Tax')->create();
     $appliedTaxes = $appliedTaxRateBuilder->setAmount($item->getUnitPrice() * self::TAX)->setTaxRateKey('TAX_RATE')->setPercent(self::TAX)->setRates([$rate])->create();
     return $this->taxDetailsItemBuilder->populate($this->createTaxDetailsItem($item))->setAppliedTaxes([$appliedTaxes])->create();
 }