github.com/geraldss/go/src@v0.0.0-20210511222824-ac7d0ebfc235/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  	"net/url"
    13  	"os/exec"
    14  	"reflect"
    15  	"testing"
    16  )
    17  
    18  func TestForeachHeaderElement(t *testing.T) {
    19  	tests := []struct {
    20  		in   string
    21  		want []string
    22  	}{
    23  		{"Foo", []string{"Foo"}},
    24  		{" Foo", []string{"Foo"}},
    25  		{"Foo ", []string{"Foo"}},
    26  		{" Foo ", []string{"Foo"}},
    27  
    28  		{"foo", []string{"foo"}},
    29  		{"anY-cAsE", []string{"anY-cAsE"}},
    30  
    31  		{"", nil},
    32  		{",,,,  ,  ,,   ,,, ,", nil},
    33  
    34  		{" Foo,Bar, Baz,lower,,Quux ", []string{"Foo", "Bar", "Baz", "lower", "Quux"}},
    35  	}
    36  	for _, tt := range tests {
    37  		var got []string
    38  		foreachHeaderElement(tt.in, func(v string) {
    39  			got = append(got, v)
    40  		})
    41  		if !reflect.DeepEqual(got, tt.want) {
    42  			t.Errorf("foreachHeaderElement(%q) = %q; want %q", tt.in, got, tt.want)
    43  		}
    44  	}
    45  }
    46  
    47  func TestCleanHost(t *testing.T) {
    48  	tests := []struct {
    49  		in, want string
    50  	}{
    51  		{"www.google.com", "www.google.com"},
    52  		{"www.google.com foo", "www.google.com"},
    53  		{"www.google.com/foo", "www.google.com"},
    54  		{" first character is a space", ""},
    55  		{"[1::6]:8080", "[1::6]:8080"},
    56  
    57  		// Punycode:
    58  		{"гофер.рф/foo", "xn--c1ae0ajs.xn--p1ai"},
    59  		{"bücher.de", "xn--bcher-kva.de"},
    60  		{"bücher.de:8080", "xn--bcher-kva.de:8080"},
    61  		// Verify we convert to lowercase before punycode:
    62  		{"BÜCHER.de", "xn--bcher-kva.de"},
    63  		{"BÜCHER.de:8080", "xn--bcher-kva.de:8080"},
    64  		// Verify we normalize to NFC before punycode:
    65  		{"gophér.nfc", "xn--gophr-esa.nfc"},            // NFC input; no work needed
    66  		{"goph\u0065\u0301r.nfd", "xn--gophr-esa.nfd"}, // NFD input
    67  	}
    68  	for _, tt := range tests {
    69  		got := cleanHost(tt.in)
    70  		if tt.want != got {
    71  			t.Errorf("cleanHost(%q) = %q, want %q", tt.in, got, tt.want)
    72  		}
    73  	}
    74  }
    75  
    76  // Test that cmd/go doesn't link in the HTTP server.
    77  //
    78  // This catches accidental dependencies between the HTTP transport and
    79  // server code.
    80  func TestCmdGoNoHTTPServer(t *testing.T) {
    81  	t.Parallel()
    82  	goBin := testenv.GoToolPath(t)
    83  	out, err := exec.Command(goBin, "tool", "nm", goBin).CombinedOutput()
    84  	if err != nil {
    85  		t.Fatalf("go tool nm: %v: %s", err, out)
    86  	}
    87  	wantSym := map[string]bool{
    88  		// Verify these exist: (sanity checking this test)
    89  		"net/http.(*Client).do":           true,
    90  		"net/http.(*Transport).RoundTrip": true,
    91  
    92  		// Verify these don't exist:
    93  		"net/http.http2Server":           false,
    94  		"net/http.(*Server).Serve":       false,
    95  		"net/http.(*ServeMux).ServeHTTP": false,
    96  		"net/http.DefaultServeMux":       false,
    97  	}
    98  	for sym, want := range wantSym {
    99  		got := bytes.Contains(out, []byte(sym))
   100  		if !want && got {
   101  			t.Errorf("cmd/go unexpectedly links in HTTP server code; found symbol %q in cmd/go", sym)
   102  		}
   103  		if want && !got {
   104  			t.Errorf("expected to find symbol %q in cmd/go; not found", sym)
   105  		}
   106  	}
   107  }
   108  
   109  // Tests that the nethttpomithttp2 build tag doesn't rot too much,
   110  // even if there's not a regular builder on it.
   111  func TestOmitHTTP2(t *testing.T) {
   112  	if testing.Short() {
   113  		t.Skip("skipping in short mode")
   114  	}
   115  	t.Parallel()
   116  	goTool := testenv.GoToolPath(t)
   117  	out, err := exec.Command(goTool, "test", "-short", "-tags=nethttpomithttp2", "net/http").CombinedOutput()
   118  	if err != nil {
   119  		t.Fatalf("go test -short failed: %v, %s", err, out)
   120  	}
   121  }
   122  
   123  // Tests that the nethttpomithttp2 build tag at least type checks
   124  // in short mode.
   125  // The TestOmitHTTP2 test above actually runs tests (in long mode).
   126  func TestOmitHTTP2Vet(t *testing.T) {
   127  	t.Parallel()
   128  	goTool := testenv.GoToolPath(t)
   129  	out, err := exec.Command(goTool, "vet", "-tags=nethttpomithttp2", "net/http").CombinedOutput()
   130  	if err != nil {
   131  		t.Fatalf("go vet failed: %v, %s", err, out)
   132  	}
   133  }
   134  
   135  var valuesCount int
   136  
   137  func BenchmarkCopyValues(b *testing.B) {
   138  	b.ReportAllocs()
   139  	src := url.Values{
   140  		"a": {"1", "2", "3", "4", "5"},
   141  		"b": {"2", "2", "3", "4", "5"},
   142  		"c": {"3", "2", "3", "4", "5"},
   143  		"d": {"4", "2", "3", "4", "5"},
   144  		"e": {"1", "1", "2", "3", "4", "5", "6", "7", "abcdef", "l", "a", "b", "c", "d", "z"},
   145  		"j": {"1", "2"},
   146  		"m": nil,
   147  	}
   148  	for i := 0; i < b.N; i++ {
   149  		dst := url.Values{"a": {"b"}, "b": {"2"}, "c": {"3"}, "d": {"4"}, "j": nil, "m": {"x"}}
   150  		copyValues(dst, src)
   151  		if valuesCount = len(dst["a"]); valuesCount != 6 {
   152  			b.Fatalf(`%d items in dst["a"] but expected 6`, valuesCount)
   153  		}
   154  	}
   155  	if valuesCount == 0 {
   156  		b.Fatal("Benchmark wasn't run")
   157  	}
   158  }