public void DescribePlacementGroupsMarshallTest()
{
var operation = service_model.FindOperation("DescribePlacementGroups");
var request = InstantiateClassGenerator.Execute<DescribePlacementGroupsRequest>();
var marshaller = new DescribePlacementGroupsRequestMarshaller();
var internalRequest = marshaller.Marshall(request);
var validator = new AWSQueryValidator(internalRequest.Parameters, request, service_model, operation);
validator.Validate();
var payloadResponse = new XmlSampleGenerator(service_model, operation).Execute();
UnmarshallerContext context = new EC2UnmarshallerContext(Utils.CreateStreamFromString(payloadResponse), false, new WebResponseData());
var response = DescribePlacementGroupsResponseUnmarshaller.Instance.Unmarshall(context)
as DescribePlacementGroupsResponse;
InstantiateClassGenerator.ValidateObjectFullyInstantiated(response);
}