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Source file src/net/http/httptest/example_test.go

Documentation: net/http/httptest

     1  // Copyright 2013 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package httptest_test
     6  
     7  import (
     8  	"fmt"
     9  	"io"
    10  	"io/ioutil"
    11  	"log"
    12  	"net/http"
    13  	"net/http/httptest"
    14  )
    15  
    16  func ExampleResponseRecorder() {
    17  	handler := func(w http.ResponseWriter, r *http.Request) {
    18  		io.WriteString(w, "<html><body>Hello World!</body></html>")
    19  	}
    20  
    21  	req := httptest.NewRequest("GET", "http://example.com/foo", nil)
    22  	w := httptest.NewRecorder()
    23  	handler(w, req)
    24  
    25  	resp := w.Result()
    26  	body, _ := ioutil.ReadAll(resp.Body)
    27  
    28  	fmt.Println(resp.StatusCode)
    29  	fmt.Println(resp.Header.Get("Content-Type"))
    30  	fmt.Println(string(body))
    31  
    32  	// Output:
    33  	// 200
    34  	// text/html; charset=utf-8
    35  	// <html><body>Hello World!</body></html>
    36  }
    37  
    38  func ExampleServer() {
    39  	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
    40  		fmt.Fprintln(w, "Hello, client")
    41  	}))
    42  	defer ts.Close()
    43  
    44  	res, err := http.Get(ts.URL)
    45  	if err != nil {
    46  		log.Fatal(err)
    47  	}
    48  	greeting, err := ioutil.ReadAll(res.Body)
    49  	res.Body.Close()
    50  	if err != nil {
    51  		log.Fatal(err)
    52  	}
    53  
    54  	fmt.Printf("%s", greeting)
    55  	// Output: Hello, client
    56  }
    57  
    58  func ExampleNewTLSServer() {
    59  	ts := httptest.NewTLSServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
    60  		fmt.Fprintln(w, "Hello, client")
    61  	}))
    62  	defer ts.Close()
    63  
    64  	client := ts.Client()
    65  	res, err := client.Get(ts.URL)
    66  	if err != nil {
    67  		log.Fatal(err)
    68  	}
    69  
    70  	greeting, err := ioutil.ReadAll(res.Body)
    71  	res.Body.Close()
    72  	if err != nil {
    73  		log.Fatal(err)
    74  	}
    75  
    76  	fmt.Printf("%s", greeting)
    77  	// Output: Hello, client
    78  }
    79  

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