chore(core-flows): adjust inventory when return is received (#8222)

integration-tests/modules/__tests__/order/workflows/create-fulfillment.spec.ts

@@ -27,6 +27,7 @@ jest.setTimeout(500000)
 
 const env = { MEDUSA_FF_MEDUSA_V2: true }
 const providerId = "manual_test-provider"
+const variantSkuWithInventory = "test-variant"
 let inventoryItem
 
 async function prepareDataFixtures({ container }) {
@@ -97,7 +98,7 @@ async function prepareDataFixtures({ container }) {
       variants: [
         {
           title: "Test variant",
-          sku: "test-variant",
+          sku: variantSkuWithInventory,
         },
         {
           title: "Test variant no inventory management",
@@ -225,6 +226,7 @@ async function createOrderFixture({ container, product, location }) {
         title: "Custom Item 2",
         variant_sku: product.variants[0].sku,
         variant_title: product.variants[0].title,
+        variant_id: product.variants[0].id,
         quantity: 1,
         unit_price: 50,
         adjustments: [
@@ -351,6 +353,9 @@ medusaIntegrationTestRunner({
         )
 
         const order = await createOrderFixture({ container, product, location })
+        const itemWithInventory = order.items!.find(
+          (o) => o.variant_sku === variantSkuWithInventory
+        )!
 
         // Create a fulfillment
         const createOrderFulfillmentData: OrderWorkflow.CreateOrderFulfillmentWorkflowInput =
@@ -359,7 +364,7 @@ medusaIntegrationTestRunner({
             created_by: "user_1",
             items: [
               {
-                id: order.items![0].id,
+                id: itemWithInventory.id,
                 quantity: 1,
               },
             ],
@@ -391,11 +396,17 @@ medusaIntegrationTestRunner({
 
         const [orderFulfill] = await remoteQuery(remoteQueryObject)
 
+        let orderFulfillItemWithInventory = orderFulfill.items!.find(
+          (o) => o.variant_sku === variantSkuWithInventory
+        )!
+
         expect(orderFulfill.fulfillments).toHaveLength(1)
-        expect(orderFulfill.items[0].detail.fulfilled_quantity).toEqual(1)
+        expect(orderFulfillItemWithInventory.detail.fulfilled_quantity).toEqual(
+          1
+        )
 
         const reservation = await inventoryModule.listReservationItems({
-          line_item_id: order.items![0].id,
+          line_item_id: itemWithInventory.id,
         })
         expect(reservation).toHaveLength(0)
 
@@ -436,10 +447,14 @@ medusaIntegrationTestRunner({
           remoteQueryObjectFulfill
         )
 
+        orderFulfillItemWithInventory = orderFulfillAfterCancelled.items!.find(
+          (o) => o.variant_sku === variantSkuWithInventory
+        )!
+
         expect(orderFulfillAfterCancelled.fulfillments).toHaveLength(1)
-        expect(
-          orderFulfillAfterCancelled.items[0].detail.fulfilled_quantity
-        ).toEqual(0)
+        expect(orderFulfillItemWithInventory.detail.fulfilled_quantity).toEqual(
+          0
+        )
 
         const stockAvailabilityAfterCancelled =
           await inventoryModule.retrieveStockedQuantity(inventoryItem.id, [