GO ResponseRecorder用法及代码示例

GO语言"net/http/httptest"包中"ResponseRecorder"类型的用法及代码示例。

ResponseRecorder 是 http ResponseWriter 的一个实现，它记录其突变以供以后在测试中检查。

用法:

type ResponseRecorder struct {
    // Code is the HTTP response code set by WriteHeader.
    //
    // Note that if a Handler never calls WriteHeader or Write,
    // this might end up being 0, rather than the implicit
    // http.StatusOK.To get the implicit value, use the Result
    // method.
    Code int

    // HeaderMap contains the headers explicitly set by the Handler.
    // It is an internal detail.
    //
    // Deprecated: HeaderMap exists for historical compatibility
    // and should not be used.To access the headers returned by a handler,
    // use the Response.Header map as returned by the Result method.
    HeaderMap http.Header

    // Body is the buffer to which the Handler's Write calls are sent.
    // If nil, the Writes are silently discarded.
    Body *bytes.Buffer

    // Flushed is whether the Handler called Flush.
    Flushed bool
    // contains filtered or unexported fields
}

例子：

package main

import (
	"fmt"
	"io"
	"net/http"
	"net/http/httptest"
)

func main() {
	handler := func(w http.ResponseWriter, r *http.Request) {
		io.WriteString(w, "<html><body>Hello World!</body></html>")
	}

	req := httptest.NewRequest("GET", "http://example.com/foo", nil)
	w := httptest.NewRecorder()
	handler(w, req)

	resp := w.Result()
	body, _ := io.ReadAll(resp.Body)

	fmt.Println(resp.StatusCode)
	fmt.Println(resp.Header.Get("Content-Type"))
	fmt.Println(string(body))

}

输出：

200
text/html; charset=utf-8
<html><body>Hello World!</body></html>

相关用法

注：本文由纯净天空筛选整理自golang.google.cn大神的英文原创作品 ResponseRecorder。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。