@GetMapping("/mobile")
  public MobileProduct getProductMobile() {
    var mobileProduct = new MobileProduct();
    mobileProduct.setPrice(priceClient.getPrice());
    return mobileProduct;
  }
@Test
  void testGetProductMobile() {
    var price = "20";
    when(priceClient.getPrice()).thenReturn(price);

    var mobileProduct = apiGateway.getProductMobile();

    assertEquals(price, mobileProduct.getPrice());
  }