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_NoInputAndOutput_test.go
    path of file: ./repos/aws-sdk-go-v2/internal/protocoltest/awsrestjson
    
    the code of the file until where you have to start completion: // Code generated by smithy-go-codegen DO NOT EDIT.

package awsrestjson

import (
	"bytes"
	"context"
	"github.com/aws/aws-sdk-go-v2/aws"
	protocoltesthttp "github.com/aws/aws-sdk-go-v2/internal/protocoltest"
	"github.com/aws/smithy-go/middleware"
	smithyprivateprotocol "github.com/aws/smithy-go/private/protocol"
	smithyrand "github.com/aws/smithy-go/rand"
	smithytesting "github.com/aws/smithy-go/testing"
	smithyhttp "github.com/aws/smithy-go/transport/http"
	"io"
	"io/ioutil"
	"net/http"
	"net/url"
	"testing"
)

func TestClient_NoInputAndOutput_awsRestjson1Serialize(t *testing.T) {
	cases := map[string]struct {
		Params        *NoInputAndOutputInput
		ExpectMethod  string
		ExpectURIPath string
		ExpectQuery   []smithytesting.QueryItem
		RequireQuery  []string
		ForbidQuery   []string
		ExpectHeader  http.Header
		RequireHeader []string
		ForbidHeader  []string
		Host          *url.URL
		BodyMediaType string
		BodyAssert    func(io.Reader) error
	}{
		// No input serializes no payload. When clients do not need to serialize any data
		// in the payload, they should omit a payload altogether.
		"RestJsonNoInputAndOutput": {
			Params:        &NoInputAndOutputInput{},
			ExpectMethod:
    
func TestClient_NoInputAndOutput_awsRestjson1Deserialize(t *testing.T) {
	cases := map[string]struct {
		StatusCode    int
		Header        http.Header
		BodyMediaType string
		Body          []byte
		ExpectResult  *NoInputAndOutputOutput
	}{
		// Operations that define output and do not bind anything to the payload return a
		// JSON object in the response.
		"RestJsonNoInputAndOutputWithJson": {
			StatusCode: 200,
			Header: http.Header{
				"Content-Type": []string{"application/json"},
			},
			BodyMediaType: "application/json",
			Body:          []byte(`{}`),
			ExpectResult:  &NoInputAndOutputOutput{},
		},
		// This test is similar to RestJsonNoInputAndOutputWithJson, but it ensures that
		// clients can gracefully handle responses that omit a JSON payload.
		"RestJsonNoInputAndOutputNoPayload": {
			StatusCode:   200,
			Body:         []byte(``),
			ExpectResult: &NoInputAndOutputOutput{},
		},
	}
	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 NoInputAndOutputInput
			result, err := client.NoInputAndOutput(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)
			}
		})
	}
}