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net/http/httptest: updated example to use Result()

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example for httptest.Recorder was inspecting Recoder directly.
Using Result() to convert Recorder into a http.Response yields a much
better user experience.

Closes #16837

Change-Id: Id0e636c12cd6adb1ba11f89953ff2b0f43758cf3
Reviewed-on: https://go-review.googlesource.com/27495
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Dhaivat Pandit 2016-08-22 10:29:02 -07:00 committed by Brad Fitzpatrick
parent 93b753f525
commit cd5ab97986
2 changed files with 16 additions and 3 deletions
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16
src/net/http/httptest/example_test.go
View File

@ -6,6 +6,7 @@ package httptest_test
import (
"fmt"
"io"
"io/ioutil"
"log"
"net/http"
@ -14,15 +15,24 @@ import (
func ExampleResponseRecorder() {
handler := func(w http.ResponseWriter, r *http.Request) {
http.Error(w, "something failed", http.StatusInternalServerError)
io.WriteString(w, "<html><body>Hello World!</body></html>")
}
req := httptest.NewRequest("GET", "http://example.com/foo", nil)
w := httptest.NewRecorder()
handler(w, req)
fmt.Printf("%d - %s", w.Code, w.Body.String())
// Output: 500 - something failed
resp := w.Result()
body, _ := ioutil.ReadAll(resp.Body)
fmt.Println(resp.StatusCode)
fmt.Println(resp.Header.Get("Content-Type"))
fmt.Println(string(body))
// Output:
// 200
// text/html; charset=utf-8
// <html><body>Hello World!</body></html>
}
func ExampleServer() {

3
src/net/http/httptest/recorder.go
View File

@ -136,6 +136,9 @@ func (rw *ResponseRecorder) Flush() {
// first write call, or at the time of this call, if the handler never
// did a write.
//
// The Response.Body is guaranteed to be non-nil and Body.Read call is
// guaranteed to not return any error other than io.EOF.
//
// Result must only be called after the handler has finished running.
func (rw *ResponseRecorder) Result() *http.Response {
if rw.result != nil {