fix(medusa): Discount allocation precision issues (#3244)

integration-tests/api/__tests__/admin/order-edit/order-edit.js

@@ -2569,15 +2569,13 @@ describe("/admin/order-edits", () => {
               ]),
             }),
           ]),
-          // rounding issue since we are allocating 1/3 of the discount to one item and 2/3 to the other item where both cost 10
-          // resulting in adjustment amounts like: 1333...
-          discount_total: 2001,
-          total: 1099,
+          discount_total: 2000,
           gift_card_total: 0,
           gift_card_tax_total: 0,
           shipping_total: 0,
           subtotal: 3000,
           tax_total: 100,
+          total: 1100,
         })
       )
 

integration-tests/api/__tests__/admin/product.js

@@ -2210,16 +2210,18 @@ describe("/admin/products", () => {
 
       expect(deleteRegionPriceResponse.status).toEqual(200)
       expect(finalPriceArray).toHaveLength(2)
-      expect(finalPriceArray).toEqual([
-        expect.objectContaining({
-          amount: 1000,
-          currency_code: "usd",
-        }),
-        expect.objectContaining({
-          amount: 900,
-          currency_code: "eur",
-        }),
-      ])
+      expect(finalPriceArray).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({
+            amount: 1000,
+            currency_code: "usd",
+          }),
+          expect.objectContaining({
+            amount: 900,
+            currency_code: "eur",
+          }),
+        ])
+      )
     })
 
     it("successfully updates a variants prices by deleting both a currency and region price", async () => {