github.com/guyezi/gofrontend@v0.0.0-20200228202240-7a62a49e62c0/libgo/go/net/http/cookie_test.go (about)

     1  // Copyright 2010 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 http
     6  
     7  import (
     8  	"bytes"
     9  	"encoding/json"
    10  	"fmt"
    11  	"log"
    12  	"os"
    13  	"reflect"
    14  	"strings"
    15  	"testing"
    16  	"time"
    17  )
    18  
    19  var writeSetCookiesTests = []struct {
    20  	Cookie *Cookie
    21  	Raw    string
    22  }{
    23  	{
    24  		&Cookie{Name: "cookie-1", Value: "v$1"},
    25  		"cookie-1=v$1",
    26  	},
    27  	{
    28  		&Cookie{Name: "cookie-2", Value: "two", MaxAge: 3600},
    29  		"cookie-2=two; Max-Age=3600",
    30  	},
    31  	{
    32  		&Cookie{Name: "cookie-3", Value: "three", Domain: ".example.com"},
    33  		"cookie-3=three; Domain=example.com",
    34  	},
    35  	{
    36  		&Cookie{Name: "cookie-4", Value: "four", Path: "/restricted/"},
    37  		"cookie-4=four; Path=/restricted/",
    38  	},
    39  	{
    40  		&Cookie{Name: "cookie-5", Value: "five", Domain: "wrong;bad.abc"},
    41  		"cookie-5=five",
    42  	},
    43  	{
    44  		&Cookie{Name: "cookie-6", Value: "six", Domain: "bad-.abc"},
    45  		"cookie-6=six",
    46  	},
    47  	{
    48  		&Cookie{Name: "cookie-7", Value: "seven", Domain: "127.0.0.1"},
    49  		"cookie-7=seven; Domain=127.0.0.1",
    50  	},
    51  	{
    52  		&Cookie{Name: "cookie-8", Value: "eight", Domain: "::1"},
    53  		"cookie-8=eight",
    54  	},
    55  	{
    56  		&Cookie{Name: "cookie-9", Value: "expiring", Expires: time.Unix(1257894000, 0)},
    57  		"cookie-9=expiring; Expires=Tue, 10 Nov 2009 23:00:00 GMT",
    58  	},
    59  	// According to IETF 6265 Section 5.1.1.5, the year cannot be less than 1601
    60  	{
    61  		&Cookie{Name: "cookie-10", Value: "expiring-1601", Expires: time.Date(1601, 1, 1, 1, 1, 1, 1, time.UTC)},
    62  		"cookie-10=expiring-1601; Expires=Mon, 01 Jan 1601 01:01:01 GMT",
    63  	},
    64  	{
    65  		&Cookie{Name: "cookie-11", Value: "invalid-expiry", Expires: time.Date(1600, 1, 1, 1, 1, 1, 1, time.UTC)},
    66  		"cookie-11=invalid-expiry",
    67  	},
    68  	{
    69  		&Cookie{Name: "cookie-12", Value: "samesite-default", SameSite: SameSiteDefaultMode},
    70  		"cookie-12=samesite-default; SameSite",
    71  	},
    72  	{
    73  		&Cookie{Name: "cookie-13", Value: "samesite-lax", SameSite: SameSiteLaxMode},
    74  		"cookie-13=samesite-lax; SameSite=Lax",
    75  	},
    76  	{
    77  		&Cookie{Name: "cookie-14", Value: "samesite-strict", SameSite: SameSiteStrictMode},
    78  		"cookie-14=samesite-strict; SameSite=Strict",
    79  	},
    80  	{
    81  		&Cookie{Name: "cookie-15", Value: "samesite-none", SameSite: SameSiteNoneMode},
    82  		"cookie-15=samesite-none; SameSite=None",
    83  	},
    84  	// The "special" cookies have values containing commas or spaces which
    85  	// are disallowed by RFC 6265 but are common in the wild.
    86  	{
    87  		&Cookie{Name: "special-1", Value: "a z"},
    88  		`special-1="a z"`,
    89  	},
    90  	{
    91  		&Cookie{Name: "special-2", Value: " z"},
    92  		`special-2=" z"`,
    93  	},
    94  	{
    95  		&Cookie{Name: "special-3", Value: "a "},
    96  		`special-3="a "`,
    97  	},
    98  	{
    99  		&Cookie{Name: "special-4", Value: " "},
   100  		`special-4=" "`,
   101  	},
   102  	{
   103  		&Cookie{Name: "special-5", Value: "a,z"},
   104  		`special-5="a,z"`,
   105  	},
   106  	{
   107  		&Cookie{Name: "special-6", Value: ",z"},
   108  		`special-6=",z"`,
   109  	},
   110  	{
   111  		&Cookie{Name: "special-7", Value: "a,"},
   112  		`special-7="a,"`,
   113  	},
   114  	{
   115  		&Cookie{Name: "special-8", Value: ","},
   116  		`special-8=","`,
   117  	},
   118  	{
   119  		&Cookie{Name: "empty-value", Value: ""},
   120  		`empty-value=`,
   121  	},
   122  	{
   123  		nil,
   124  		``,
   125  	},
   126  	{
   127  		&Cookie{Name: ""},
   128  		``,
   129  	},
   130  	{
   131  		&Cookie{Name: "\t"},
   132  		``,
   133  	},
   134  	{
   135  		&Cookie{Name: "\r"},
   136  		``,
   137  	},
   138  	{
   139  		&Cookie{Name: "a\nb", Value: "v"},
   140  		``,
   141  	},
   142  	{
   143  		&Cookie{Name: "a\nb", Value: "v"},
   144  		``,
   145  	},
   146  	{
   147  		&Cookie{Name: "a\rb", Value: "v"},
   148  		``,
   149  	},
   150  }
   151  
   152  func TestWriteSetCookies(t *testing.T) {
   153  	defer log.SetOutput(os.Stderr)
   154  	var logbuf bytes.Buffer
   155  	log.SetOutput(&logbuf)
   156  
   157  	for i, tt := range writeSetCookiesTests {
   158  		if g, e := tt.Cookie.String(), tt.Raw; g != e {
   159  			t.Errorf("Test %d, expecting:\n%s\nGot:\n%s\n", i, e, g)
   160  			continue
   161  		}
   162  	}
   163  
   164  	if got, sub := logbuf.String(), "dropping domain attribute"; !strings.Contains(got, sub) {
   165  		t.Errorf("Expected substring %q in log output. Got:\n%s", sub, got)
   166  	}
   167  }
   168  
   169  type headerOnlyResponseWriter Header
   170  
   171  func (ho headerOnlyResponseWriter) Header() Header {
   172  	return Header(ho)
   173  }
   174  
   175  func (ho headerOnlyResponseWriter) Write([]byte) (int, error) {
   176  	panic("NOIMPL")
   177  }
   178  
   179  func (ho headerOnlyResponseWriter) WriteHeader(int) {
   180  	panic("NOIMPL")
   181  }
   182  
   183  func TestSetCookie(t *testing.T) {
   184  	m := make(Header)
   185  	SetCookie(headerOnlyResponseWriter(m), &Cookie{Name: "cookie-1", Value: "one", Path: "/restricted/"})
   186  	SetCookie(headerOnlyResponseWriter(m), &Cookie{Name: "cookie-2", Value: "two", MaxAge: 3600})
   187  	if l := len(m["Set-Cookie"]); l != 2 {
   188  		t.Fatalf("expected %d cookies, got %d", 2, l)
   189  	}
   190  	if g, e := m["Set-Cookie"][0], "cookie-1=one; Path=/restricted/"; g != e {
   191  		t.Errorf("cookie #1: want %q, got %q", e, g)
   192  	}
   193  	if g, e := m["Set-Cookie"][1], "cookie-2=two; Max-Age=3600"; g != e {
   194  		t.Errorf("cookie #2: want %q, got %q", e, g)
   195  	}
   196  }
   197  
   198  var addCookieTests = []struct {
   199  	Cookies []*Cookie
   200  	Raw     string
   201  }{
   202  	{
   203  		[]*Cookie{},
   204  		"",
   205  	},
   206  	{
   207  		[]*Cookie{{Name: "cookie-1", Value: "v$1"}},
   208  		"cookie-1=v$1",
   209  	},
   210  	{
   211  		[]*Cookie{
   212  			{Name: "cookie-1", Value: "v$1"},
   213  			{Name: "cookie-2", Value: "v$2"},
   214  			{Name: "cookie-3", Value: "v$3"},
   215  		},
   216  		"cookie-1=v$1; cookie-2=v$2; cookie-3=v$3",
   217  	},
   218  }
   219  
   220  func TestAddCookie(t *testing.T) {
   221  	for i, tt := range addCookieTests {
   222  		req, _ := NewRequest("GET", "http://example.com/", nil)
   223  		for _, c := range tt.Cookies {
   224  			req.AddCookie(c)
   225  		}
   226  		if g := req.Header.Get("Cookie"); g != tt.Raw {
   227  			t.Errorf("Test %d:\nwant: %s\n got: %s\n", i, tt.Raw, g)
   228  			continue
   229  		}
   230  	}
   231  }
   232  
   233  var readSetCookiesTests = []struct {
   234  	Header  Header
   235  	Cookies []*Cookie
   236  }{
   237  	{
   238  		Header{"Set-Cookie": {"Cookie-1=v$1"}},
   239  		[]*Cookie{{Name: "Cookie-1", Value: "v$1", Raw: "Cookie-1=v$1"}},
   240  	},
   241  	{
   242  		Header{"Set-Cookie": {"NID=99=YsDT5i3E-CXax-; expires=Wed, 23-Nov-2011 01:05:03 GMT; path=/; domain=.google.ch; HttpOnly"}},
   243  		[]*Cookie{{
   244  			Name:       "NID",
   245  			Value:      "99=YsDT5i3E-CXax-",
   246  			Path:       "/",
   247  			Domain:     ".google.ch",
   248  			HttpOnly:   true,
   249  			Expires:    time.Date(2011, 11, 23, 1, 5, 3, 0, time.UTC),
   250  			RawExpires: "Wed, 23-Nov-2011 01:05:03 GMT",
   251  			Raw:        "NID=99=YsDT5i3E-CXax-; expires=Wed, 23-Nov-2011 01:05:03 GMT; path=/; domain=.google.ch; HttpOnly",
   252  		}},
   253  	},
   254  	{
   255  		Header{"Set-Cookie": {".ASPXAUTH=7E3AA; expires=Wed, 07-Mar-2012 14:25:06 GMT; path=/; HttpOnly"}},
   256  		[]*Cookie{{
   257  			Name:       ".ASPXAUTH",
   258  			Value:      "7E3AA",
   259  			Path:       "/",
   260  			Expires:    time.Date(2012, 3, 7, 14, 25, 6, 0, time.UTC),
   261  			RawExpires: "Wed, 07-Mar-2012 14:25:06 GMT",
   262  			HttpOnly:   true,
   263  			Raw:        ".ASPXAUTH=7E3AA; expires=Wed, 07-Mar-2012 14:25:06 GMT; path=/; HttpOnly",
   264  		}},
   265  	},
   266  	{
   267  		Header{"Set-Cookie": {"ASP.NET_SessionId=foo; path=/; HttpOnly"}},
   268  		[]*Cookie{{
   269  			Name:     "ASP.NET_SessionId",
   270  			Value:    "foo",
   271  			Path:     "/",
   272  			HttpOnly: true,
   273  			Raw:      "ASP.NET_SessionId=foo; path=/; HttpOnly",
   274  		}},
   275  	},
   276  	{
   277  		Header{"Set-Cookie": {"samesitedefault=foo; SameSite"}},
   278  		[]*Cookie{{
   279  			Name:     "samesitedefault",
   280  			Value:    "foo",
   281  			SameSite: SameSiteDefaultMode,
   282  			Raw:      "samesitedefault=foo; SameSite",
   283  		}},
   284  	},
   285  	{
   286  		Header{"Set-Cookie": {"samesitelax=foo; SameSite=Lax"}},
   287  		[]*Cookie{{
   288  			Name:     "samesitelax",
   289  			Value:    "foo",
   290  			SameSite: SameSiteLaxMode,
   291  			Raw:      "samesitelax=foo; SameSite=Lax",
   292  		}},
   293  	},
   294  	{
   295  		Header{"Set-Cookie": {"samesitestrict=foo; SameSite=Strict"}},
   296  		[]*Cookie{{
   297  			Name:     "samesitestrict",
   298  			Value:    "foo",
   299  			SameSite: SameSiteStrictMode,
   300  			Raw:      "samesitestrict=foo; SameSite=Strict",
   301  		}},
   302  	},
   303  	{
   304  		Header{"Set-Cookie": {"samesitenone=foo; SameSite=None"}},
   305  		[]*Cookie{{
   306  			Name:     "samesitenone",
   307  			Value:    "foo",
   308  			SameSite: SameSiteNoneMode,
   309  			Raw:      "samesitenone=foo; SameSite=None",
   310  		}},
   311  	},
   312  	// Make sure we can properly read back the Set-Cookie headers we create
   313  	// for values containing spaces or commas:
   314  	{
   315  		Header{"Set-Cookie": {`special-1=a z`}},
   316  		[]*Cookie{{Name: "special-1", Value: "a z", Raw: `special-1=a z`}},
   317  	},
   318  	{
   319  		Header{"Set-Cookie": {`special-2=" z"`}},
   320  		[]*Cookie{{Name: "special-2", Value: " z", Raw: `special-2=" z"`}},
   321  	},
   322  	{
   323  		Header{"Set-Cookie": {`special-3="a "`}},
   324  		[]*Cookie{{Name: "special-3", Value: "a ", Raw: `special-3="a "`}},
   325  	},
   326  	{
   327  		Header{"Set-Cookie": {`special-4=" "`}},
   328  		[]*Cookie{{Name: "special-4", Value: " ", Raw: `special-4=" "`}},
   329  	},
   330  	{
   331  		Header{"Set-Cookie": {`special-5=a,z`}},
   332  		[]*Cookie{{Name: "special-5", Value: "a,z", Raw: `special-5=a,z`}},
   333  	},
   334  	{
   335  		Header{"Set-Cookie": {`special-6=",z"`}},
   336  		[]*Cookie{{Name: "special-6", Value: ",z", Raw: `special-6=",z"`}},
   337  	},
   338  	{
   339  		Header{"Set-Cookie": {`special-7=a,`}},
   340  		[]*Cookie{{Name: "special-7", Value: "a,", Raw: `special-7=a,`}},
   341  	},
   342  	{
   343  		Header{"Set-Cookie": {`special-8=","`}},
   344  		[]*Cookie{{Name: "special-8", Value: ",", Raw: `special-8=","`}},
   345  	},
   346  
   347  	// TODO(bradfitz): users have reported seeing this in the
   348  	// wild, but do browsers handle it? RFC 6265 just says "don't
   349  	// do that" (section 3) and then never mentions header folding
   350  	// again.
   351  	// Header{"Set-Cookie": {"ASP.NET_SessionId=foo; path=/; HttpOnly, .ASPXAUTH=7E3AA; expires=Wed, 07-Mar-2012 14:25:06 GMT; path=/; HttpOnly"}},
   352  }
   353  
   354  func toJSON(v interface{}) string {
   355  	b, err := json.Marshal(v)
   356  	if err != nil {
   357  		return fmt.Sprintf("%#v", v)
   358  	}
   359  	return string(b)
   360  }
   361  
   362  func TestReadSetCookies(t *testing.T) {
   363  	for i, tt := range readSetCookiesTests {
   364  		for n := 0; n < 2; n++ { // to verify readSetCookies doesn't mutate its input
   365  			c := readSetCookies(tt.Header)
   366  			if !reflect.DeepEqual(c, tt.Cookies) {
   367  				t.Errorf("#%d readSetCookies: have\n%s\nwant\n%s\n", i, toJSON(c), toJSON(tt.Cookies))
   368  				continue
   369  			}
   370  		}
   371  	}
   372  }
   373  
   374  var readCookiesTests = []struct {
   375  	Header  Header
   376  	Filter  string
   377  	Cookies []*Cookie
   378  }{
   379  	{
   380  		Header{"Cookie": {"Cookie-1=v$1", "c2=v2"}},
   381  		"",
   382  		[]*Cookie{
   383  			{Name: "Cookie-1", Value: "v$1"},
   384  			{Name: "c2", Value: "v2"},
   385  		},
   386  	},
   387  	{
   388  		Header{"Cookie": {"Cookie-1=v$1", "c2=v2"}},
   389  		"c2",
   390  		[]*Cookie{
   391  			{Name: "c2", Value: "v2"},
   392  		},
   393  	},
   394  	{
   395  		Header{"Cookie": {"Cookie-1=v$1; c2=v2"}},
   396  		"",
   397  		[]*Cookie{
   398  			{Name: "Cookie-1", Value: "v$1"},
   399  			{Name: "c2", Value: "v2"},
   400  		},
   401  	},
   402  	{
   403  		Header{"Cookie": {"Cookie-1=v$1; c2=v2"}},
   404  		"c2",
   405  		[]*Cookie{
   406  			{Name: "c2", Value: "v2"},
   407  		},
   408  	},
   409  	{
   410  		Header{"Cookie": {`Cookie-1="v$1"; c2="v2"`}},
   411  		"",
   412  		[]*Cookie{
   413  			{Name: "Cookie-1", Value: "v$1"},
   414  			{Name: "c2", Value: "v2"},
   415  		},
   416  	},
   417  	{
   418  		Header{"Cookie": {`Cookie-1="v$1"; c2=v2;`}},
   419  		"",
   420  		[]*Cookie{
   421  			{Name: "Cookie-1", Value: "v$1"},
   422  			{Name: "c2", Value: "v2"},
   423  		},
   424  	},
   425  	{
   426  		Header{"Cookie": {``}},
   427  		"",
   428  		[]*Cookie{},
   429  	},
   430  }
   431  
   432  func TestReadCookies(t *testing.T) {
   433  	for i, tt := range readCookiesTests {
   434  		for n := 0; n < 2; n++ { // to verify readCookies doesn't mutate its input
   435  			c := readCookies(tt.Header, tt.Filter)
   436  			if !reflect.DeepEqual(c, tt.Cookies) {
   437  				t.Errorf("#%d readCookies:\nhave: %s\nwant: %s\n", i, toJSON(c), toJSON(tt.Cookies))
   438  				continue
   439  			}
   440  		}
   441  	}
   442  }
   443  
   444  func TestSetCookieDoubleQuotes(t *testing.T) {
   445  	res := &Response{Header: Header{}}
   446  	res.Header.Add("Set-Cookie", `quoted0=none; max-age=30`)
   447  	res.Header.Add("Set-Cookie", `quoted1="cookieValue"; max-age=31`)
   448  	res.Header.Add("Set-Cookie", `quoted2=cookieAV; max-age="32"`)
   449  	res.Header.Add("Set-Cookie", `quoted3="both"; max-age="33"`)
   450  	got := res.Cookies()
   451  	want := []*Cookie{
   452  		{Name: "quoted0", Value: "none", MaxAge: 30},
   453  		{Name: "quoted1", Value: "cookieValue", MaxAge: 31},
   454  		{Name: "quoted2", Value: "cookieAV"},
   455  		{Name: "quoted3", Value: "both"},
   456  	}
   457  	if len(got) != len(want) {
   458  		t.Fatalf("got %d cookies, want %d", len(got), len(want))
   459  	}
   460  	for i, w := range want {
   461  		g := got[i]
   462  		if g.Name != w.Name || g.Value != w.Value || g.MaxAge != w.MaxAge {
   463  			t.Errorf("cookie #%d:\ngot  %v\nwant %v", i, g, w)
   464  		}
   465  	}
   466  }
   467  
   468  func TestCookieSanitizeValue(t *testing.T) {
   469  	defer log.SetOutput(os.Stderr)
   470  	var logbuf bytes.Buffer
   471  	log.SetOutput(&logbuf)
   472  
   473  	tests := []struct {
   474  		in, want string
   475  	}{
   476  		{"foo", "foo"},
   477  		{"foo;bar", "foobar"},
   478  		{"foo\\bar", "foobar"},
   479  		{"foo\"bar", "foobar"},
   480  		{"\x00\x7e\x7f\x80", "\x7e"},
   481  		{`"withquotes"`, "withquotes"},
   482  		{"a z", `"a z"`},
   483  		{" z", `" z"`},
   484  		{"a ", `"a "`},
   485  		{"a,z", `"a,z"`},
   486  		{",z", `",z"`},
   487  		{"a,", `"a,"`},
   488  	}
   489  	for _, tt := range tests {
   490  		if got := sanitizeCookieValue(tt.in); got != tt.want {
   491  			t.Errorf("sanitizeCookieValue(%q) = %q; want %q", tt.in, got, tt.want)
   492  		}
   493  	}
   494  
   495  	if got, sub := logbuf.String(), "dropping invalid bytes"; !strings.Contains(got, sub) {
   496  		t.Errorf("Expected substring %q in log output. Got:\n%s", sub, got)
   497  	}
   498  }
   499  
   500  func TestCookieSanitizePath(t *testing.T) {
   501  	defer log.SetOutput(os.Stderr)
   502  	var logbuf bytes.Buffer
   503  	log.SetOutput(&logbuf)
   504  
   505  	tests := []struct {
   506  		in, want string
   507  	}{
   508  		{"/path", "/path"},
   509  		{"/path with space/", "/path with space/"},
   510  		{"/just;no;semicolon\x00orstuff/", "/justnosemicolonorstuff/"},
   511  	}
   512  	for _, tt := range tests {
   513  		if got := sanitizeCookiePath(tt.in); got != tt.want {
   514  			t.Errorf("sanitizeCookiePath(%q) = %q; want %q", tt.in, got, tt.want)
   515  		}
   516  	}
   517  
   518  	if got, sub := logbuf.String(), "dropping invalid bytes"; !strings.Contains(got, sub) {
   519  		t.Errorf("Expected substring %q in log output. Got:\n%s", sub, got)
   520  	}
   521  }
   522  
   523  func BenchmarkCookieString(b *testing.B) {
   524  	const wantCookieString = `cookie-9=i3e01nf61b6t23bvfmplnanol3; Path=/restricted/; Domain=example.com; Expires=Tue, 10 Nov 2009 23:00:00 GMT; Max-Age=3600`
   525  	c := &Cookie{
   526  		Name:    "cookie-9",
   527  		Value:   "i3e01nf61b6t23bvfmplnanol3",
   528  		Expires: time.Unix(1257894000, 0),
   529  		Path:    "/restricted/",
   530  		Domain:  ".example.com",
   531  		MaxAge:  3600,
   532  	}
   533  	var benchmarkCookieString string
   534  	b.ReportAllocs()
   535  	b.ResetTimer()
   536  	for i := 0; i < b.N; i++ {
   537  		benchmarkCookieString = c.String()
   538  	}
   539  	if have, want := benchmarkCookieString, wantCookieString; have != want {
   540  		b.Fatalf("Have: %v Want: %v", have, want)
   541  	}
   542  }
   543  
   544  func BenchmarkReadSetCookies(b *testing.B) {
   545  	header := Header{
   546  		"Set-Cookie": {
   547  			"NID=99=YsDT5i3E-CXax-; expires=Wed, 23-Nov-2011 01:05:03 GMT; path=/; domain=.google.ch; HttpOnly",
   548  			".ASPXAUTH=7E3AA; expires=Wed, 07-Mar-2012 14:25:06 GMT; path=/; HttpOnly",
   549  		},
   550  	}
   551  	wantCookies := []*Cookie{
   552  		{
   553  			Name:       "NID",
   554  			Value:      "99=YsDT5i3E-CXax-",
   555  			Path:       "/",
   556  			Domain:     ".google.ch",
   557  			HttpOnly:   true,
   558  			Expires:    time.Date(2011, 11, 23, 1, 5, 3, 0, time.UTC),
   559  			RawExpires: "Wed, 23-Nov-2011 01:05:03 GMT",
   560  			Raw:        "NID=99=YsDT5i3E-CXax-; expires=Wed, 23-Nov-2011 01:05:03 GMT; path=/; domain=.google.ch; HttpOnly",
   561  		},
   562  		{
   563  			Name:       ".ASPXAUTH",
   564  			Value:      "7E3AA",
   565  			Path:       "/",
   566  			Expires:    time.Date(2012, 3, 7, 14, 25, 6, 0, time.UTC),
   567  			RawExpires: "Wed, 07-Mar-2012 14:25:06 GMT",
   568  			HttpOnly:   true,
   569  			Raw:        ".ASPXAUTH=7E3AA; expires=Wed, 07-Mar-2012 14:25:06 GMT; path=/; HttpOnly",
   570  		},
   571  	}
   572  	var c []*Cookie
   573  	b.ReportAllocs()
   574  	b.ResetTimer()
   575  	for i := 0; i < b.N; i++ {
   576  		c = readSetCookies(header)
   577  	}
   578  	if !reflect.DeepEqual(c, wantCookies) {
   579  		b.Fatalf("readSetCookies:\nhave: %s\nwant: %s\n", toJSON(c), toJSON(wantCookies))
   580  	}
   581  }
   582  
   583  func BenchmarkReadCookies(b *testing.B) {
   584  	header := Header{
   585  		"Cookie": {
   586  			`de=; client_region=0; rpld1=0:hispeed.ch|20:che|21:zh|22:zurich|23:47.36|24:8.53|; rpld0=1:08|; backplane-channel=newspaper.com:1471; devicetype=0; osfam=0; rplmct=2; s_pers=%20s_vmonthnum%3D1472680800496%2526vn%253D1%7C1472680800496%3B%20s_nr%3D1471686767664-New%7C1474278767664%3B%20s_lv%3D1471686767669%7C1566294767669%3B%20s_lv_s%3DFirst%2520Visit%7C1471688567669%3B%20s_monthinvisit%3Dtrue%7C1471688567677%3B%20gvp_p5%3Dsports%253Ablog%253Aearly-lead%2520-%2520184693%2520-%252020160820%2520-%2520u-s%7C1471688567681%3B%20gvp_p51%3Dwp%2520-%2520sports%7C1471688567684%3B; s_sess=%20s_wp_ep%3Dhomepage%3B%20s._ref%3Dhttps%253A%252F%252Fwww.google.ch%252F%3B%20s_cc%3Dtrue%3B%20s_ppvl%3Dsports%25253Ablog%25253Aearly-lead%252520-%252520184693%252520-%25252020160820%252520-%252520u-lawyer%252C12%252C12%252C502%252C1231%252C502%252C1680%252C1050%252C2%252CP%3B%20s_ppv%3Dsports%25253Ablog%25253Aearly-lead%252520-%252520184693%252520-%25252020160820%252520-%252520u-s-lawyer%252C12%252C12%252C502%252C1231%252C502%252C1680%252C1050%252C2%252CP%3B%20s_dslv%3DFirst%2520Visit%3B%20s_sq%3Dwpninewspapercom%253D%252526pid%25253Dsports%2525253Ablog%2525253Aearly-lead%25252520-%25252520184693%25252520-%2525252020160820%25252520-%25252520u-s%252526pidt%25253D1%252526oid%25253Dhttps%2525253A%2525252F%2525252Fwww.newspaper.com%2525252F%2525253Fnid%2525253Dmenu_nav_homepage%252526ot%25253DA%3B`,
   587  		},
   588  	}
   589  	wantCookies := []*Cookie{
   590  		{Name: "de", Value: ""},
   591  		{Name: "client_region", Value: "0"},
   592  		{Name: "rpld1", Value: "0:hispeed.ch|20:che|21:zh|22:zurich|23:47.36|24:8.53|"},
   593  		{Name: "rpld0", Value: "1:08|"},
   594  		{Name: "backplane-channel", Value: "newspaper.com:1471"},
   595  		{Name: "devicetype", Value: "0"},
   596  		{Name: "osfam", Value: "0"},
   597  		{Name: "rplmct", Value: "2"},
   598  		{Name: "s_pers", Value: "%20s_vmonthnum%3D1472680800496%2526vn%253D1%7C1472680800496%3B%20s_nr%3D1471686767664-New%7C1474278767664%3B%20s_lv%3D1471686767669%7C1566294767669%3B%20s_lv_s%3DFirst%2520Visit%7C1471688567669%3B%20s_monthinvisit%3Dtrue%7C1471688567677%3B%20gvp_p5%3Dsports%253Ablog%253Aearly-lead%2520-%2520184693%2520-%252020160820%2520-%2520u-s%7C1471688567681%3B%20gvp_p51%3Dwp%2520-%2520sports%7C1471688567684%3B"},
   599  		{Name: "s_sess", Value: "%20s_wp_ep%3Dhomepage%3B%20s._ref%3Dhttps%253A%252F%252Fwww.google.ch%252F%3B%20s_cc%3Dtrue%3B%20s_ppvl%3Dsports%25253Ablog%25253Aearly-lead%252520-%252520184693%252520-%25252020160820%252520-%252520u-lawyer%252C12%252C12%252C502%252C1231%252C502%252C1680%252C1050%252C2%252CP%3B%20s_ppv%3Dsports%25253Ablog%25253Aearly-lead%252520-%252520184693%252520-%25252020160820%252520-%252520u-s-lawyer%252C12%252C12%252C502%252C1231%252C502%252C1680%252C1050%252C2%252CP%3B%20s_dslv%3DFirst%2520Visit%3B%20s_sq%3Dwpninewspapercom%253D%252526pid%25253Dsports%2525253Ablog%2525253Aearly-lead%25252520-%25252520184693%25252520-%2525252020160820%25252520-%25252520u-s%252526pidt%25253D1%252526oid%25253Dhttps%2525253A%2525252F%2525252Fwww.newspaper.com%2525252F%2525253Fnid%2525253Dmenu_nav_homepage%252526ot%25253DA%3B"},
   600  	}
   601  	var c []*Cookie
   602  	b.ReportAllocs()
   603  	b.ResetTimer()
   604  	for i := 0; i < b.N; i++ {
   605  		c = readCookies(header, "")
   606  	}
   607  	if !reflect.DeepEqual(c, wantCookies) {
   608  		b.Fatalf("readCookies:\nhave: %s\nwant: %s\n", toJSON(c), toJSON(wantCookies))
   609  	}
   610  }