@PostMapping("/order")
  public ResponseEntity<String> processOrder(@RequestBody(required = false) String request) {
    LOGGER.info("Received order request: {}", request);
    var result = orderService.processOrder();
    LOGGER.info("Order processed result: {}", result);
    return ResponseEntity.ok(result);
  }
@Test
  void processOrderShouldReturnSuccessStatus() {
    // Arrange
    when(orderService.processOrder()).thenReturn("Order processed successfully");
    // Act
    ResponseEntity<String> response = orderController.processOrder("test order");
    // Assert
    assertEquals("Order processed successfully", response.getBody());
  }