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: issue356_test.go
    path of file: ./repos/kin-openapi/routers
    
    the code of the file until where you have to start completion: package routers_test

import (
	"context"
	"io"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"

	"github.com/stretchr/testify/require"

	"github.com/getkin/kin-openapi/openapi3"
	"github.com/getkin/kin-openapi/openapi3filter"
	"github.com/getkin/kin-openapi/routers"
	"github.com/getkin/kin-openapi/routers/gorillamux"
	"github.com/getkin/kin-openapi/routers/legacy"
)

func TestIssue356(t *testing.T) {
	spec := func(servers string) []byte {
		return []byte(`
openapi: 3.0.0
info:
  title: Example
  version: '1.0'
  description: test
servers:
` + servers + `
paths:
  /test:
    post:
      responses:
        '201':
          description: Created
          content:
            application/json:
              schema: {type: object}
      requestBody:
        content:
          application/json:
            schema: {type: object}
        description: ''
      description: Create a test object
`)
	}

	for servers, expectError := range map[string]bool{
		`
- url: http://localhost:3000/base
- url: /base
`: false,

		`
- url: /base
- url: http://localhost:3000/base
`: false,

		`- url: /base`: false,

		`- url: http://localhost:3000/base`: true,

		``: true,
	} {
		loader := &openapi3.Loader{Context: context.Background()}
		t.Logf("using servers: %q (%v)", servers, expectError)
		doc, err := loader.LoadFromData(spec(servers))
		require.NoError(t, err)
		err = doc.Validate(context.Background())
		require.NoError(t, err)
		gorillamuxNewRouterWrapped := func(doc *openapi3.T, opts ...openapi3.ValidationOption) (routers.Router, error) {
			return gorillamux.NewRouter(doc)
		}

		for i, newRouter := range []func(*openapi3.T, ...openapi3.ValidationOption) (routers.Router, error){gorillamuxNewRouterWrapped, legacy.NewRouter} {
			t.Logf("using NewRouter from %s", map[int]string{0: "gorillamux", 1: "legacy"}[i])
			router, err := newRouter(doc)
			require.NoError(t, err)

			if true {
				t.Logf("using naked newRouter")
				httpReq, err := http.NewRequest(http.MethodPost, "/base/test", strings.NewReader(`{}`))
				require.NoError(t, err)
				httpReq.Header.Set("Content-Type", "application/json")

				route, pathParams, err := router.FindRoute(httpReq)
				if expectError {
					require.Error(t, err, routers.ErrPathNotFound)
					return
				}
				require.NoError(t, err)

				requestValidationInput := &openapi3filter.RequestValidationInput{
					Request:    httpReq,
					PathParams: pathParams,
					Route:      route,
				}
				err = openapi3filter.ValidateRequest(context.Background(), requestValidationInput)
				require.NoError(t, err)
			}

			if true {
				t.Logf("using httptest.NewServer")
				ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
					route, pathParams, err := router.FindRoute(r)
					if err != nil {
						w.WriteHeader(http.StatusInternalServerError)
						w.Write([]byte(err.Error()))
						return
					}

					requestValidationInput := &openapi3filter.RequestValidationInput{
						Request:    r,
						PathParams: pathParams,
						Route:      route,
					}
					err = openapi3filter.ValidateRequest(r.Context(), requestValidationInput)
					require.NoError(t, err)

					w.Header().Set("Content-Type", "application/j
    
func TestIssue356(t *testing.T) {
	spec := func(servers string) []byte {
		return []byte(`
openapi: 3.0.0
info:
  title: Example
  version: '1.0'
  description: test
servers:
` + servers + `
paths:
  /test:
    post:
      responses:
        '201':
          description: Created
          content:
            application/json:
              schema: {type: object}
      requestBody:
        content:
          application/json:
            schema: {type: object}
        description: ''
      description: Create a test object
`)
	}

	for servers, expectError := range map[string]bool{
		`
- url: http://localhost:3000/base
- url: /base
`: false,

		`
- url: /base
- url: http://localhost:3000/base
`: false,

		`- url: /base`: false,

		`- url: http://localhost:3000/base`: true,

		``: true,
	} {
		loader := &openapi3.Loader{Context: context.Background()}
		t.Logf("using servers: %q (%v)", servers, expectError)
		doc, err := loader.LoadFromData(spec(servers))
		require.NoError(t, err)
		err = doc.Validate(context.Background())
		require.NoError(t, err)
		gorillamuxNewRouterWrapped := func(doc *openapi3.T, opts ...openapi3.ValidationOption) (routers.Router, error) {
			return gorillamux.NewRouter(doc)
		}

		for i, newRouter := range []func(*openapi3.T, ...openapi3.ValidationOption) (routers.Router, error){gorillamuxNewRouterWrapped, legacy.NewRouter} {
			t.Logf("using NewRouter from %s", map[int]string{0: "gorillamux", 1: "legacy"}[i])
			router, err := newRouter(doc)
			require.NoError(t, err)

			if true {
				t.Logf("using naked newRouter")
				httpReq, err := http.NewRequest(http.MethodPost, "/base/test", strings.NewReader(`{}`))
				require.NoError(t, err)
				httpReq.Header.Set("Content-Type", "application/json")

				route, pathParams, err := router.FindRoute(httpReq)
				if expectError {
					require.Error(t, err, routers.ErrPathNotFound)
					return
				}
				require.NoError(t, err)

				requestValidationInput := &openapi3filter.RequestValidationInput{
					Request:    httpReq,
					PathParams: pathParams,
					Route:      route,
				}
				err = openapi3filter.ValidateRequest(context.Background(), requestValidationInput)
				require.NoError(t, err)
			}

			if true {
				t.Logf("using httptest.NewServer")
				ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
					route, pathParams, err := router.FindRoute(r)
					if err != nil {
						w.WriteHeader(http.StatusInternalServerError)
						w.Write([]byte(err.Error()))
						return
					}

					requestValidationInput := &openapi3filter.RequestValidationInput{
						Request:    r,
						PathParams: pathParams,
						Route:      route,
					}
					err = openapi3filter.ValidateRequest(r.Context(), requestValidationInput)
					require.NoError(t, err)

					w.Header().Set("Content-Type", "application/json")
					w.Write([]byte("{}"))
				}))
				defer ts.Close()

				req, err := http.NewRequest(http.MethodPost, ts.URL+"/base/test", strings.NewReader(`{}`))
				require.NoError(t, err)
				req.Header.Set("Content-Type", "application/json")

				rep, err := http.DefaultClient.Do(req)
				require.NoError(t, err)
				defer rep.Body.Close()
				body, err := io.ReadAll(rep.Body)
				require.NoError(t, err)

				if expectError {
					require.Equal(t, 500, rep.StatusCode)
					require.Equal(t, routers.ErrPathNotFound.Error(), string(body))
					return
				}
				require.Equal(t, 200, rep.StatusCode)
				require.Equal(t, "{}", string(body))
			}
		}
	}
}