github.com/rakyll/go@v0.0.0-20170216000551-64c02460d703/src/net/http/http_test.go (about)

     1  // Copyright 2014 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  // Tests of internal functions and things with no better homes.
     6  
     7  package http
     8  
     9  import (
    10  	"bytes"
    11  	"internal/testenv"
    12  	"os/exec"
    13  	"reflect"
    14  	"testing"
    15  	"time"
    16  )
    17  
    18  func init() {
    19  	shutdownPollInterval = 5 * time.Millisecond
    20  }
    21  
    22  func TestForeachHeaderElement(t *testing.T) {
    23  	tests := []struct {
    24  		in   string
    25  		want []string
    26  	}{
    27  		{"Foo", []string{"Foo"}},
    28  		{" Foo", []string{"Foo"}},
    29  		{"Foo ", []string{"Foo"}},
    30  		{" Foo ", []string{"Foo"}},
    31  
    32  		{"foo", []string{"foo"}},
    33  		{"anY-cAsE", []string{"anY-cAsE"}},
    34  
    35  		{"", nil},
    36  		{",,,,  ,  ,,   ,,, ,", nil},
    37  
    38  		{" Foo,Bar, Baz,lower,,Quux ", []string{"Foo", "Bar", "Baz", "lower", "Quux"}},
    39  	}
    40  	for _, tt := range tests {
    41  		var got []string
    42  		foreachHeaderElement(tt.in, func(v string) {
    43  			got = append(got, v)
    44  		})
    45  		if !reflect.DeepEqual(got, tt.want) {
    46  			t.Errorf("foreachHeaderElement(%q) = %q; want %q", tt.in, got, tt.want)
    47  		}
    48  	}
    49  }
    50  
    51  func TestCleanHost(t *testing.T) {
    52  	tests := []struct {
    53  		in, want string
    54  	}{
    55  		{"www.google.com", "www.google.com"},
    56  		{"www.google.com foo", "www.google.com"},
    57  		{"www.google.com/foo", "www.google.com"},
    58  		{" first character is a space", ""},
    59  		{"[1::6]:8080", "[1::6]:8080"},
    60  
    61  		// Punycode:
    62  		{"гофер.рф/foo", "xn--c1ae0ajs.xn--p1ai"},
    63  		{"bücher.de", "xn--bcher-kva.de"},
    64  		{"bücher.de:8080", "xn--bcher-kva.de:8080"},
    65  		// Verify we convert to lowercase before punycode:
    66  		{"BÜCHER.de", "xn--bcher-kva.de"},
    67  		{"BÜCHER.de:8080", "xn--bcher-kva.de:8080"},
    68  		// Verify we normalize to NFC before punycode:
    69  		{"gophér.nfc", "xn--gophr-esa.nfc"},            // NFC input; no work needed
    70  		{"goph\u0065\u0301r.nfd", "xn--gophr-esa.nfd"}, // NFD input
    71  	}
    72  	for _, tt := range tests {
    73  		got := cleanHost(tt.in)
    74  		if tt.want != got {
    75  			t.Errorf("cleanHost(%q) = %q, want %q", tt.in, got, tt.want)
    76  		}
    77  	}
    78  }
    79  
    80  // Test that cmd/go doesn't link in the HTTP server.
    81  //
    82  // This catches accidental dependencies between the HTTP transport and
    83  // server code.
    84  func TestCmdGoNoHTTPServer(t *testing.T) {
    85  	t.Parallel()
    86  	goBin := testenv.GoToolPath(t)
    87  	out, err := exec.Command(goBin, "tool", "nm", goBin).CombinedOutput()
    88  	if err != nil {
    89  		t.Fatalf("go tool nm: %v: %s", err, out)
    90  	}
    91  	wantSym := map[string]bool{
    92  		// Verify these exist: (sanity checking this test)
    93  		"net/http.(*Client).Get":          true,
    94  		"net/http.(*Transport).RoundTrip": true,
    95  
    96  		// Verify these don't exist:
    97  		"net/http.http2Server":           false,
    98  		"net/http.(*Server).Serve":       false,
    99  		"net/http.(*ServeMux).ServeHTTP": false,
   100  		"net/http.DefaultServeMux":       false,
   101  	}
   102  	for sym, want := range wantSym {
   103  		got := bytes.Contains(out, []byte(sym))
   104  		if !want && got {
   105  			t.Errorf("cmd/go unexpectedly links in HTTP server code; found symbol %q in cmd/go", sym)
   106  		}
   107  		if want && !got {
   108  			t.Errorf("expected to find symbol %q in cmd/go; not found", sym)
   109  		}
   110  	}
   111  }