Add change shipment state action in order action

.changeset/twelve-schools-join.md

@@ -0,0 +1,5 @@
+---
+"@labdigital/commercetools-mock": patch
+---
+
+Added missing test OrderChangeShipmentStateAction in order action

src/repositories/order/actions.ts

@@ -6,6 +6,7 @@ import type {
 	OrderAddReturnInfoAction,
 	OrderChangeOrderStateAction,
 	OrderChangePaymentStateAction,
+	OrderChangeShipmentStateAction,
 	OrderSetBillingAddressAction,
 	OrderSetCustomFieldAction,
 	OrderSetCustomTypeAction,
@@ -117,6 +118,14 @@ export class OrderUpdateHandler
 		resource.paymentState = paymentState;
 	}
 
+	changeShipmentState(
+		context: RepositoryContext,
+		resource: Writable<Order>,
+		{ shipmentState }: OrderChangeShipmentStateAction,
+	) {
+		resource.shipmentState = shipmentState;
+	}
+
 	setBillingAddress(
 		context: RepositoryContext,
 		resource: Writable<Order>,

src/services/order.test.ts

@@ -403,6 +403,20 @@ describe("Order Update Actions", () => {
 		expect(response.body.paymentState).toBe("Failed");
 	});
 
+	test("changeShipmentState", async () => {
+		assert(order, "order not created");
+
+		const response = await supertest(ctMock.app)
+			.post(`/dummy/orders/${order.id}`)
+			.send({
+				version: 1,
+				actions: [{ action: "changeShipmentState", shipmentState: "Delayed" }],
+			});
+		expect(response.status).toBe(200);
+		expect(response.body.version).toBe(2);
+		expect(response.body.shipmentState).toBe("Delayed");
+	});
+
 	test("setDeliveryCustomField", async () => {
 		const order: Order = {
 			...getBaseResourceProperties(),