You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: api_op_HttpPayloadWithXmlName_test.go
    path of file: ./repos/aws-sdk-go-v2/internal/protocoltest/restxml
    
    the code of the file until where you have to start completion: // Code generated by smithy-go-codegen DO NOT EDIT.

package restxml

import (
	"bytes"
	"context"
	"github.com/aws/aws-sdk-go-v2/aws"
	protocoltesthttp "github.com/aws/aws-sdk-go-v2/internal/protocoltest"
	"github.com/aws/aws-sdk-go-v2/internal/protocoltest/restxml/types"
	"github.com/aws/smithy-go/middleware"
	smithyprivateprotocol "github.com/aws/smithy-go/private/protocol"
	"github.com/aws/smithy-go
    
func TestClient_HttpPayloadWithXmlName_awsRestxmlDeserialize(t *testing.T) {
	cases := map[string]struct {
		StatusCode    int
		Header        http.Header
		BodyMediaType string
		Body          []byte
		ExpectResult  *HttpPayloadWithXmlNameOutput
	}{
		// Serializes a structure in the payload using a wrapper name based on xmlName
		"HttpPayloadWithXmlName": {
			StatusCode: 200,
			Header: http.Header{
				"Content-Type": []string{"application/xml"},
			},
			BodyMediaType: "application/xml",
			Body:          []byte(`<Hello><name>Phreddy</name></Hello>`),
			ExpectResult: &HttpPayloadWithXmlNameOutput{
				Nested: &types.PayloadWithXmlName{
					Name: ptr.String("Phreddy"),
				},
			},
		},
	}
	for name, c := range cases {
		t.Run(name, func(t *testing.T) {
			serverURL := "http://localhost:8888/"
			client := New(Options{
				HTTPClient: smithyhttp.ClientDoFunc(func(r *http.Request) (*http.Response, error) {
					headers := http.Header{}
					for k, vs := range c.Header {
						for _, v := range vs {
							headers.Add(k, v)
						}
					}
					if len(c.BodyMediaType) != 0 && len(headers.Values("Content-Type")) == 0 {
						headers.Set("Content-Type", c.BodyMediaType)
					}
					response := &http.Response{
						StatusCode: c.StatusCode,
						Header:     headers,
						Request:    r,
					}
					if len(c.Body) != 0 {
						response.ContentLength = int64(len(c.Body))
						response.Body = ioutil.NopCloser(bytes.NewReader(c.Body))
					} else {

						response.Body = http.NoBody
					}
					return response, nil
				}),
				APIOptions: []func(*middleware.Stack) error{
					func(s *middleware.Stack) error {
						s.Finalize.Clear()
						s.Initialize.Remove(`OperationInputValidation`)
						return nil
					},
				},
				EndpointResolver: EndpointResolverFunc(func(region string, options EndpointResolverOptions) (e aws.Endpoint, err error) {
					e.URL = serverURL
					e.SigningRegion = "us-west-2"
					return e, err
				}),
				IdempotencyTokenProvider: smithyrand.NewUUIDIdempotencyToken(&smithytesting.ByteLoop{}),
				Region:                   "us-west-2",
			})
			var params HttpPayloadWithXmlNameInput
			result, err := client.HttpPayloadWithXmlName(context.Background(), &params)
			if err != nil {
				t.Fatalf("expect nil err, got %v", err)
			}
			if result == nil {
				t.Fatalf("expect not nil result")
			}
			if err := smithytesting.CompareValues(c.ExpectResult, result); err != nil {
				t.Errorf("expect c.ExpectResult value match:\n%v", err)
			}
		})
	}
}