httptest
最后更新于：2022-04-02 02:44:55
[TOC]
## 语法
```
func NewRequest(method, target string, body io.Reader) *http.Request
type ResponseRecorder
func NewRecorder() *ResponseRecorder
func (rw *ResponseRecorder) Flush()
func (rw *ResponseRecorder) Header() http.Header
func (rw *ResponseRecorder) Result() *http.Response
func (rw *ResponseRecorder) Write(buf []byte) (int, error)
func (rw *ResponseRecorder) WriteHeader(code int)
func (rw *ResponseRecorder) WriteString(str string) (int, error)
type Server
func NewServer(handler http.Handler) *Server
func NewTLSServer(handler http.Handler) *Server
func NewUnstartedServer(handler http.Handler) *Server
func (s *Server) Certificate() *x509.Certificate
func (s *Server) Client() *http.Client
func (s *Server) Close()
func (s *Server) CloseClientConnections()
func (s *Server) Start()
func (s *Server) StartTLS()
```
## 示例
### httptest.NewRequest 创建请求头
```
httptest.NewRequest("GET","http://127.0.0.1/foo",nil)
```
### 两种模拟http 服务器的方式
#### 访问模拟的server
```
func Api(w http.ResponseWriter, r *http.Request) {
io.WriteString(w, "hello world")
}
// test
func TestApi(t *testing.T) {
server := httptest.NewServer(http.HandlerFunc(Api))
defer server.Close()
res, err := http.Get(server.URL)
if err != nil {
t.Log(err)
}
all, err := ioutil.ReadAll(res.Body)
if err != nil {
t.Log(err)
}
if string(all) != "hello world" {
t.Error("返回值不正确")
}
}
```
#### Recorder
```
func Api(w http.ResponseWriter, r *http.Request) {
io.WriteString(w, "hello world")
}
// test
func TestApi(t *testing.T) {
// 域名可以随便写，参数可以按照实际需求写
req := httptest.NewRequest("GET", "http://127.0.0.1:8010/foo", nil)
recorder := httptest.NewRecorder()
Api(recorder, req)
all, err := ioutil.ReadAll(recorder.Body)
if err != nil {
t.Error(err)
}
t.Log(string(all))
}
```
### http2
查看官方的 httptest 的 example_test.go
### 支持 TLS
查看官方的 httptest 的 example_test.go
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