ACP2E-1313: Refund shipping issue with discounted order (Apply Discount On Prices = Including tax)

Author: o-iegorov

app/code/Magento/Sales/Test/Unit/Model/Order/Creditmemo/Total/ShippingTest.php

@@ -517,7 +517,7 @@ public function testCollectUsingShippingInclTaxAndDiscountBeforeTax(string $calc
         $this->taxConfig->expects($this->any())->method('displaySalesShippingInclTax')->willReturn(true);
         $this->taxConfig->expects($this->any())
             ->method('getCalculationSequence')
-            ->willReturn(TaxCalculation::CALC_TAX_AFTER_DISCOUNT_ON_EXCL);
+            ->willReturn($calculationSequence);
 
         $orderShippingAmount = 14.55;
         $shippingTaxAmount = 0.45;