// Copyright 2010 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package http import ( "encoding/json" "fmt" "log" "os" "reflect" "strings" "testing" "time" ) var writeSetCookiesTests = []struct { Cookie *Cookie Raw string }{ { &Cookie{Name: "cookie-1", Value: "v$1"}, "cookie-1=v$1", }, { &Cookie{Name: "cookie-2", Value: "two", MaxAge: 3600}, "cookie-2=two; Max-Age=3600", }, { &Cookie{Name: "cookie-3", Value: "three", Domain: ".example.com"}, "cookie-3=three; Domain=example.com", }, { &Cookie{Name: "cookie-4", Value: "four", Path: "/restricted/"}, "cookie-4=four; Path=/restricted/", }, { &Cookie{Name: "cookie-5", Value: "five", Domain: "wrong;bad.abc"}, "cookie-5=five", }, { &Cookie{Name: "cookie-6", Value: "six", Domain: "bad-.abc"}, "cookie-6=six", }, { &Cookie{Name: "cookie-7", Value: "seven", Domain: "127.0.0.1"}, "cookie-7=seven; Domain=127.0.0.1", }, { &Cookie{Name: "cookie-8", Value: "eight", Domain: "::1"}, "cookie-8=eight", }, { &Cookie{Name: "cookie-9", Value: "expiring", Expires: time.Unix(1257894000, 0)}, "cookie-9=expiring; Expires=Tue, 10 Nov 2009 23:00:00 GMT", }, // According to IETF 6265 Section 5.1.1.5, the year cannot be less than 1601 { &Cookie{Name: "cookie-10", Value: "expiring-1601", Expires: time.Date(1601, 1, 1, 1, 1, 1, 1, time.UTC)}, "cookie-10=expiring-1601; Expires=Mon, 01 Jan 1601 01:01:01 GMT", }, { &Cookie{Name: "cookie-11", Value: "invalid-expiry", Expires: time.Date(1600, 1, 1, 1, 1, 1, 1, time.UTC)}, "cookie-11=invalid-expiry", }, { &Cookie{Name: "cookie-12", Value: "samesite-default", SameSite: SameSiteDefaultMode}, "cookie-12=samesite-default", }, { &Cookie{Name: "cookie-13", Value: "samesite-lax", SameSite: SameSiteLaxMode}, "cookie-13=samesite-lax; SameSite=Lax", }, { &Cookie{Name: "cookie-14", Value: "samesite-strict", SameSite: SameSiteStrictMode}, "cookie-14=samesite-strict; SameSite=Strict", }, { &Cookie{Name: "cookie-15", Value: "samesite-none", SameSite: SameSiteNoneMode}, "cookie-15=samesite-none; SameSite=None", }, // The "special" cookies have values containing commas or spaces which // are disallowed by RFC 6265 but are common in the wild. { &Cookie{Name: "special-1", Value: "a z"}, `special-1="a z"`, }, { &Cookie{Name: "special-2", Value: " z"}, `special-2=" z"`, }, { &Cookie{Name: "special-3", Value: "a "}, `special-3="a "`, }, { &Cookie{Name: "special-4", Value: " "}, `special-4=" "`, }, { &Cookie{Name: "special-5", Value: "a,z"}, `special-5="a,z"`, }, { &Cookie{Name: "special-6", Value: ",z"}, `special-6=",z"`, }, { &Cookie{Name: "special-7", Value: "a,"}, `special-7="a,"`, }, { &Cookie{Name: "special-8", Value: ","}, `special-8=","`, }, { &Cookie{Name: "empty-value", Value: ""}, `empty-value=`, }, { nil, ``, }, { &Cookie{Name: ""}, ``, }, { &Cookie{Name: "\t"}, ``, }, { &Cookie{Name: "\r"}, ``, }, { &Cookie{Name: "a\nb", Value: "v"}, ``, }, { &Cookie{Name: "a\nb", Value: "v"}, ``, }, { &Cookie{Name: "a\rb", Value: "v"}, ``, }, } func TestWriteSetCookies(t *testing.T) { defer log.SetOutput(os.Stderr) var logbuf strings.Builder log.SetOutput(&logbuf) for i, tt := range writeSetCookiesTests { if g, e := tt.Cookie.String(), tt.Raw; g != e { t.Errorf("Test %d, expecting:\n%s\nGot:\n%s\n", i, e, g) continue } } if got, sub := logbuf.String(), "dropping domain attribute"; !strings.Contains(got, sub) { t.Errorf("Expected substring %q in log output. Got:\n%s", sub, got) } } type headerOnlyResponseWriter Header func (ho headerOnlyResponseWriter) Header() Header { return Header(ho) } func (ho headerOnlyResponseWriter) Write([]byte) (int, error) { panic("NOIMPL") } func (ho headerOnlyResponseWriter) WriteHeader(int) { panic("NOIMPL") } func TestSetCookie(t *testing.T) { m := make(Header) SetCookie(headerOnlyResponseWriter(m), &Cookie{Name: "cookie-1", Value: "one", Path: "/restricted/"}) SetCookie(headerOnlyResponseWriter(m), &Cookie{Name: "cookie-2", Value: "two", MaxAge: 3600}) if l := len(m["Set-Cookie"]); l != 2 { t.Fatalf("expected %d cookies, got %d", 2, l) } if g, e := m["Set-Cookie"][0], "cookie-1=one; Path=/restricted/"; g != e { t.Errorf("cookie #1: want %q, got %q", e, g) } if g, e := m["Set-Cookie"][1], "cookie-2=two; Max-Age=3600"; g != e { t.Errorf("cookie #2: want %q, got %q", e, g) } } var addCookieTests = []struct { Cookies []*Cookie Raw string }{ { []*Cookie{}, "", }, { []*Cookie{{Name: "cookie-1", Value: "v$1"}}, "cookie-1=v$1", }, { []*Cookie{ {Name: "cookie-1", Value: "v$1"}, {Name: "cookie-2", Value: "v$2"}, {Name: "cookie-3", Value: "v$3"}, }, "cookie-1=v$1; cookie-2=v$2; cookie-3=v$3", }, } func TestAddCookie(t *testing.T) { for i, tt := range addCookieTests { req, _ := NewRequest("GET", "http://example.com/", nil) for _, c := range tt.Cookies { req.AddCookie(c) } if g := req.Header.Get("Cookie"); g != tt.Raw { t.Errorf("Test %d:\nwant: %s\n got: %s\n", i, tt.Raw, g) continue } } } var readSetCookiesTests = []struct { Header Header Cookies []*Cookie }{ { Header{"Set-Cookie": {"Cookie-1=v$1"}}, []*Cookie{{Name: "Cookie-1", Value: "v$1", Raw: "Cookie-1=v$1"}}, }, { Header{"Set-Cookie": {"NID=99=YsDT5i3E-CXax-; expires=Wed, 23-Nov-2011 01:05:03 GMT; path=/; domain=.google.ch; HttpOnly"}}, []*Cookie{{ Name: "NID", Value: "99=YsDT5i3E-CXax-", Path: "/", Domain: ".google.ch", HttpOnly: true, Expires: time.Date(2011, 11, 23, 1, 5, 3, 0, time.UTC), RawExpires: "Wed, 23-Nov-2011 01:05:03 GMT", Raw: "NID=99=YsDT5i3E-CXax-; expires=Wed, 23-Nov-2011 01:05:03 GMT; path=/; domain=.google.ch; HttpOnly", }}, }, { Header{"Set-Cookie": {".ASPXAUTH=7E3AA; expires=Wed, 07-Mar-2012 14:25:06 GMT; path=/; HttpOnly"}}, []*Cookie{{ Name: ".ASPXAUTH", Value: "7E3AA", Path: "/", Expires: time.Date(2012, 3, 7, 14, 25, 6, 0, time.UTC), RawExpires: "Wed, 07-Mar-2012 14:25:06 GMT", HttpOnly: true, Raw: ".ASPXAUTH=7E3AA; expires=Wed, 07-Mar-2012 14:25:06 GMT; path=/; HttpOnly", }}, }, { Header{"Set-Cookie": {"ASP.NET_SessionId=foo; path=/; HttpOnly"}}, []*Cookie{{ Name: "ASP.NET_SessionId", Value: "foo", Path: "/", HttpOnly: true, Raw: "ASP.NET_SessionId=foo; path=/; HttpOnly", }}, }, { Header{"Set-Cookie": {"samesitedefault=foo; SameSite"}}, []*Cookie{{ Name: "samesitedefault", Value: "foo", SameSite: SameSiteDefaultMode, Raw: "samesitedefault=foo; SameSite", }}, }, { Header{"Set-Cookie": {"samesiteinvalidisdefault=foo; SameSite=invalid"}}, []*Cookie{{ Name: "samesiteinvalidisdefault", Value: "foo", SameSite: SameSiteDefaultMode, Raw: "samesiteinvalidisdefault=foo; SameSite=invalid", }}, }, { Header{"Set-Cookie": {"samesitelax=foo; SameSite=Lax"}}, []*Cookie{{ Name: "samesitelax", Value: "foo", SameSite: SameSiteLaxMode, Raw: "samesitelax=foo; SameSite=Lax", }}, }, { Header{"Set-Cookie": {"samesitestrict=foo; SameSite=Strict"}}, []*Cookie{{ Name: "samesitestrict", Value: "foo", SameSite: SameSiteStrictMode, Raw: "samesitestrict=foo; SameSite=Strict", }}, }, { Header{"Set-Cookie": {"samesitenone=foo; SameSite=None"}}, []*Cookie{{ Name: "samesitenone", Value: "foo", SameSite: SameSiteNoneMode, Raw: "samesitenone=foo; SameSite=None", }}, }, // Make sure we can properly read back the Set-Cookie headers we create // for values containing spaces or commas: { Header{"Set-Cookie": {`special-1=a z`}}, []*Cookie{{Name: "special-1", Value: "a z", Raw: `special-1=a z`}}, }, { Header{"Set-Cookie": {`special-2=" z"`}}, []*Cookie{{Name: "special-2", Value: " z", Raw: `special-2=" z"`}}, }, { Header{"Set-Cookie": {`special-3="a "`}}, []*Cookie{{Name: "special-3", Value: "a ", Raw: `special-3="a "`}}, }, { Header{"Set-Cookie": {`special-4=" "`}}, []*Cookie{{Name: "special-4", Value: " ", Raw: `special-4=" "`}}, }, { Header{"Set-Cookie": {`special-5=a,z`}}, []*Cookie{{Name: "special-5", Value: "a,z", Raw: `special-5=a,z`}}, }, { Header{"Set-Cookie": {`special-6=",z"`}}, []*Cookie{{Name: "special-6", Value: ",z", Raw: `special-6=",z"`}}, }, { Header{"Set-Cookie": {`special-7=a,`}}, []*Cookie{{Name: "special-7", Value: "a,", Raw: `special-7=a,`}}, }, { Header{"Set-Cookie": {`special-8=","`}}, []*Cookie{{Name: "special-8", Value: ",", Raw: `special-8=","`}}, }, // Make sure we can properly read back the Set-Cookie headers // for names containing spaces: { Header{"Set-Cookie": {`special-9 =","`}}, []*Cookie{{Name: "special-9", Value: ",", Raw: `special-9 =","`}}, }, // TODO(bradfitz): users have reported seeing this in the // wild, but do browsers handle it? RFC 6265 just says "don't // do that" (section 3) and then never mentions header folding // again. // Header{"Set-Cookie": {"ASP.NET_SessionId=foo; path=/; HttpOnly, .ASPXAUTH=7E3AA; expires=Wed, 07-Mar-2012 14:25:06 GMT; path=/; HttpOnly"}}, } func toJSON(v any) string { b, err := json.Marshal(v) if err != nil { return fmt.Sprintf("%#v", v) } return string(b) } func TestReadSetCookies(t *testing.T) { for i, tt := range readSetCookiesTests { for n := 0; n < 2; n++ { // to verify readSetCookies doesn't mutate its input c := readSetCookies(tt.Header) if !reflect.DeepEqual(c, tt.Cookies) { t.Errorf("#%d readSetCookies: have\n%s\nwant\n%s\n", i, toJSON(c), toJSON(tt.Cookies)) continue } } } } var readCookiesTests = []struct { Header Header Filter string Cookies []*Cookie }{ { Header{"Cookie": {"Cookie-1=v$1", "c2=v2"}}, "", []*Cookie{ {Name: "Cookie-1", Value: "v$1"}, {Name: "c2", Value: "v2"}, }, }, { Header{"Cookie": {"Cookie-1=v$1", "c2=v2"}}, "c2", []*Cookie{ {Name: "c2", Value: "v2"}, }, }, { Header{"Cookie": {"Cookie-1=v$1; c2=v2"}}, "", []*Cookie{ {Name: "Cookie-1", Value: "v$1"}, {Name: "c2", Value: "v2"}, }, }, { Header{"Cookie": {"Cookie-1=v$1; c2=v2"}}, "c2", []*Cookie{ {Name: "c2", Value: "v2"}, }, }, { Header{"Cookie": {`Cookie-1="v$1"; c2="v2"`}}, "", []*Cookie{ {Name: "Cookie-1", Value: "v$1"}, {Name: "c2", Value: "v2"}, }, }, { Header{"Cookie": {`Cookie-1="v$1"; c2=v2;`}}, "", []*Cookie{ {Name: "Cookie-1", Value: "v$1"}, {Name: "c2", Value: "v2"}, }, }, { Header{"Cookie": {``}}, "", []*Cookie{}, }, } func TestReadCookies(t *testing.T) { for i, tt := range readCookiesTests { for n := 0; n < 2; n++ { // to verify readCookies doesn't mutate its input c := readCookies(tt.Header, tt.Filter) if !reflect.DeepEqual(c, tt.Cookies) { t.Errorf("#%d readCookies:\nhave: %s\nwant: %s\n", i, toJSON(c), toJSON(tt.Cookies)) continue } } } } func TestSetCookieDoubleQuotes(t *testing.T) { res := &Response{Header: Header{}} res.Header.Add("Set-Cookie", `quoted0=none; max-age=30`) res.Header.Add("Set-Cookie", `quoted1="cookieValue"; max-age=31`) res.Header.Add("Set-Cookie", `quoted2=cookieAV; max-age="32"`) res.Header.Add("Set-Cookie", `quoted3="both"; max-age="33"`) got := res.Cookies() want := []*Cookie{ {Name: "quoted0", Value: "none", MaxAge: 30}, {Name: "quoted1", Value: "cookieValue", MaxAge: 31}, {Name: "quoted2", Value: "cookieAV"}, {Name: "quoted3", Value: "both"}, } if len(got) != len(want) { t.Fatalf("got %d cookies, want %d", len(got), len(want)) } for i, w := range want { g := got[i] if g.Name != w.Name || g.Value != w.Value || g.MaxAge != w.MaxAge { t.Errorf("cookie #%d:\ngot %v\nwant %v", i, g, w) } } } func TestCookieSanitizeValue(t *testing.T) { defer log.SetOutput(os.Stderr) var logbuf strings.Builder log.SetOutput(&logbuf) tests := []struct { in, want string }{ {"foo", "foo"}, {"foo;bar", "foobar"}, {"foo\\bar", "foobar"}, {"foo\"bar", "foobar"}, {"\x00\x7e\x7f\x80", "\x7e"}, {`"withquotes"`, "withquotes"}, {"a z", `"a z"`}, {" z", `" z"`}, {"a ", `"a "`}, {"a,z", `"a,z"`}, {",z", `",z"`}, {"a,", `"a,"`}, } for _, tt := range tests { if got := sanitizeCookieValue(tt.in); got != tt.want { t.Errorf("sanitizeCookieValue(%q) = %q; want %q", tt.in, got, tt.want) } } if got, sub := logbuf.String(), "dropping invalid bytes"; !strings.Contains(got, sub) { t.Errorf("Expected substring %q in log output. Got:\n%s", sub, got) } } func TestCookieSanitizePath(t *testing.T) { defer log.SetOutput(os.Stderr) var logbuf strings.Builder log.SetOutput(&logbuf) tests := []struct { in, want string }{ {"/path", "/path"}, {"/path with space/", "/path with space/"}, {"/just;no;semicolon\x00orstuff/", "/justnosemicolonorstuff/"}, } for _, tt := range tests { if got := sanitizeCookiePath(tt.in); got != tt.want { t.Errorf("sanitizeCookiePath(%q) = %q; want %q", tt.in, got, tt.want) } } if got, sub := logbuf.String(), "dropping invalid bytes"; !strings.Contains(got, sub) { t.Errorf("Expected substring %q in log output. Got:\n%s", sub, got) } } func TestCookieValid(t *testing.T) { tests := []struct { cookie *Cookie valid bool }{ {nil, false}, {&Cookie{Name: ""}, false}, {&Cookie{Name: "invalid-value", Value: "foo\"bar"}, false}, {&Cookie{Name: "invalid-path", Path: "/foo;bar/"}, false}, {&Cookie{Name: "invalid-domain", Domain: "example.com:80"}, false}, {&Cookie{Name: "invalid-expiry", Value: "", Expires: time.Date(1600, 1, 1, 1, 1, 1, 1, time.UTC)}, false}, {&Cookie{Name: "valid-empty"}, true}, {&Cookie{Name: "valid-expires", Value: "foo", Path: "/bar", Domain: "example.com", Expires: time.Unix(0, 0)}, true}, {&Cookie{Name: "valid-max-age", Value: "foo", Path: "/bar", Domain: "example.com", MaxAge: 60}, true}, {&Cookie{Name: "valid-all-fields", Value: "foo", Path: "/bar", Domain: "example.com", Expires: time.Unix(0, 0), MaxAge: 0}, true}, } for _, tt := range tests { err := tt.cookie.Valid() if err != nil && tt.valid { t.Errorf("%#v.Valid() returned error %v; want nil", tt.cookie, err) } if err == nil && !tt.valid { t.Errorf("%#v.Valid() returned nil; want error", tt.cookie) } } } func BenchmarkCookieString(b *testing.B) { const wantCookieString = `cookie-9=i3e01nf61b6t23bvfmplnanol3; Path=/restricted/; Domain=example.com; Expires=Tue, 10 Nov 2009 23:00:00 GMT; Max-Age=3600` c := &Cookie{ Name: "cookie-9", Value: "i3e01nf61b6t23bvfmplnanol3", Expires: time.Unix(1257894000, 0), Path: "/restricted/", Domain: ".example.com", MaxAge: 3600, } var benchmarkCookieString string b.ReportAllocs() b.ResetTimer() for i := 0; i < b.N; i++ { benchmarkCookieString = c.String() } if have, want := benchmarkCookieString, wantCookieString; have != want { b.Fatalf("Have: %v Want: %v", have, want) } } func BenchmarkReadSetCookies(b *testing.B) { header := Header{ "Set-Cookie": { "NID=99=YsDT5i3E-CXax-; expires=Wed, 23-Nov-2011 01:05:03 GMT; path=/; domain=.google.ch; HttpOnly", ".ASPXAUTH=7E3AA; expires=Wed, 07-Mar-2012 14:25:06 GMT; path=/; HttpOnly", }, } wantCookies := []*Cookie{ { Name: "NID", Value: "99=YsDT5i3E-CXax-", Path: "/", Domain: ".google.ch", HttpOnly: true, Expires: time.Date(2011, 11, 23, 1, 5, 3, 0, time.UTC), RawExpires: "Wed, 23-Nov-2011 01:05:03 GMT", Raw: "NID=99=YsDT5i3E-CXax-; expires=Wed, 23-Nov-2011 01:05:03 GMT; path=/; domain=.google.ch; HttpOnly", }, { Name: ".ASPXAUTH", Value: "7E3AA", Path: "/", Expires: time.Date(2012, 3, 7, 14, 25, 6, 0, time.UTC), RawExpires: "Wed, 07-Mar-2012 14:25:06 GMT", HttpOnly: true, Raw: ".ASPXAUTH=7E3AA; expires=Wed, 07-Mar-2012 14:25:06 GMT; path=/; HttpOnly", }, } var c []*Cookie b.ReportAllocs() b.ResetTimer() for i := 0; i < b.N; i++ { c = readSetCookies(header) } if !reflect.DeepEqual(c, wantCookies) { b.Fatalf("readSetCookies:\nhave: %s\nwant: %s\n", toJSON(c), toJSON(wantCookies)) } } func BenchmarkReadCookies(b *testing.B) { header := Header{ "Cookie": { `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`, }, } wantCookies := []*Cookie{ {Name: "de", Value: ""}, {Name: "client_region", Value: "0"}, {Name: "rpld1", Value: "0:hispeed.ch|20:che|21:zh|22:zurich|23:47.36|24:8.53|"}, {Name: "rpld0", Value: "1:08|"}, {Name: "backplane-channel", Value: "newspaper.com:1471"}, {Name: "devicetype", Value: "0"}, {Name: "osfam", Value: "0"}, {Name: "rplmct", Value: "2"}, {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"}, {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"}, } var c []*Cookie b.ReportAllocs() b.ResetTimer() for i := 0; i < b.N; i++ { c = readCookies(header, "") } if !reflect.DeepEqual(c, wantCookies) { b.Fatalf("readCookies:\nhave: %s\nwant: %s\n", toJSON(c), toJSON(wantCookies)) } }