fix: Correctly associate options to variants (#8285)

packages/modules/product/integration-tests/__tests__/product-module-service/product-variants.spec.ts

@@ -328,6 +328,69 @@ moduleIntegrationTestRunner<IProductModuleService>({
             }),
           ])
         })
+
+        it("should correctly associate variants with own product options", async () => {
+          jest.clearAllMocks()
+          const productThree = await service.createProducts({
+            id: "product-3",
+            title: "product 3",
+            status: ProductStatus.PUBLISHED,
+            options: [
+              {
+                title: "size",
+                values: ["large", "small"],
+              },
+              {
+                title: "color",
+                values: ["red", "blue"],
+              },
+            ],
+          } as CreateProductDTO)
+
+          const data: CreateProductVariantDTO[] = [
+            {
+              title: "new variant",
+              product_id: productOne.id,
+              options: { size: "small" },
+            },
+            {
+              title: "new variant",
+              product_id: productThree.id,
+              options: { size: "small" },
+            },
+          ]
+
+          const variants = await service.createProductVariants(data)
+
+          expect(variants).toEqual(
+            expect.arrayContaining([
+              expect.objectContaining({
+                title: "new variant",
+                product_id: productOne.id,
+                options: expect.arrayContaining([
+                  expect.objectContaining({
+                    id: productOne.options
+                      .find((o) => o.title === "size")
+                      ?.values?.find((v) => v.value === "small")?.id,
+                    value: "small",
+                  }),
+                ]),
+              }),
+              expect.objectContaining({
+                title: "new variant",
+                product_id: productThree.id,
+                options: expect.arrayContaining([
+                  expect.objectContaining({
+                    id: productThree.options
+                      .find((o) => o.title === "size")
+                      ?.values?.find((v) => v.value === "small")?.id,
+                    value: "small",
+                  }),
+                ]),
+              }),
+            ])
+          )
+        })
       })
 
       describe("softDelete variant", () => {