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Source file src/net/http/header_test.go

Documentation: net/http

     1  // Copyright 2011 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  	"internal/race"
    10  	"runtime"
    11  	"testing"
    12  	"time"
    13  )
    14  
    15  var headerWriteTests = []struct {
    16  	h        Header
    17  	exclude  map[string]bool
    18  	expected string
    19  }{
    20  	{Header{}, nil, ""},
    21  	{
    22  		Header{
    23  			"Content-Type":   {"text/html; charset=UTF-8"},
    24  			"Content-Length": {"0"},
    25  		},
    26  		nil,
    27  		"Content-Length: 0\r\nContent-Type: text/html; charset=UTF-8\r\n",
    28  	},
    29  	{
    30  		Header{
    31  			"Content-Length": {"0", "1", "2"},
    32  		},
    33  		nil,
    34  		"Content-Length: 0\r\nContent-Length: 1\r\nContent-Length: 2\r\n",
    35  	},
    36  	{
    37  		Header{
    38  			"Expires":          {"-1"},
    39  			"Content-Length":   {"0"},
    40  			"Content-Encoding": {"gzip"},
    41  		},
    42  		map[string]bool{"Content-Length": true},
    43  		"Content-Encoding: gzip\r\nExpires: -1\r\n",
    44  	},
    45  	{
    46  		Header{
    47  			"Expires":          {"-1"},
    48  			"Content-Length":   {"0", "1", "2"},
    49  			"Content-Encoding": {"gzip"},
    50  		},
    51  		map[string]bool{"Content-Length": true},
    52  		"Content-Encoding: gzip\r\nExpires: -1\r\n",
    53  	},
    54  	{
    55  		Header{
    56  			"Expires":          {"-1"},
    57  			"Content-Length":   {"0"},
    58  			"Content-Encoding": {"gzip"},
    59  		},
    60  		map[string]bool{"Content-Length": true, "Expires": true, "Content-Encoding": true},
    61  		"",
    62  	},
    63  	{
    64  		Header{
    65  			"Nil":          nil,
    66  			"Empty":        {},
    67  			"Blank":        {""},
    68  			"Double-Blank": {"", ""},
    69  		},
    70  		nil,
    71  		"Blank: \r\nDouble-Blank: \r\nDouble-Blank: \r\n",
    72  	},
    73  	// Tests header sorting when over the insertion sort threshold side:
    74  	{
    75  		Header{
    76  			"k1": {"1a", "1b"},
    77  			"k2": {"2a", "2b"},
    78  			"k3": {"3a", "3b"},
    79  			"k4": {"4a", "4b"},
    80  			"k5": {"5a", "5b"},
    81  			"k6": {"6a", "6b"},
    82  			"k7": {"7a", "7b"},
    83  			"k8": {"8a", "8b"},
    84  			"k9": {"9a", "9b"},
    85  		},
    86  		map[string]bool{"k5": true},
    87  		"k1: 1a\r\nk1: 1b\r\nk2: 2a\r\nk2: 2b\r\nk3: 3a\r\nk3: 3b\r\n" +
    88  			"k4: 4a\r\nk4: 4b\r\nk6: 6a\r\nk6: 6b\r\n" +
    89  			"k7: 7a\r\nk7: 7b\r\nk8: 8a\r\nk8: 8b\r\nk9: 9a\r\nk9: 9b\r\n",
    90  	},
    91  }
    92  
    93  func TestHeaderWrite(t *testing.T) {
    94  	var buf bytes.Buffer
    95  	for i, test := range headerWriteTests {
    96  		test.h.WriteSubset(&buf, test.exclude)
    97  		if buf.String() != test.expected {
    98  			t.Errorf("#%d:\n got: %q\nwant: %q", i, buf.String(), test.expected)
    99  		}
   100  		buf.Reset()
   101  	}
   102  }
   103  
   104  var parseTimeTests = []struct {
   105  	h   Header
   106  	err bool
   107  }{
   108  	{Header{"Date": {""}}, true},
   109  	{Header{"Date": {"invalid"}}, true},
   110  	{Header{"Date": {"1994-11-06T08:49:37Z00:00"}}, true},
   111  	{Header{"Date": {"Sun, 06 Nov 1994 08:49:37 GMT"}}, false},
   112  	{Header{"Date": {"Sunday, 06-Nov-94 08:49:37 GMT"}}, false},
   113  	{Header{"Date": {"Sun Nov  6 08:49:37 1994"}}, false},
   114  }
   115  
   116  func TestParseTime(t *testing.T) {
   117  	expect := time.Date(1994, 11, 6, 8, 49, 37, 0, time.UTC)
   118  	for i, test := range parseTimeTests {
   119  		d, err := ParseTime(test.h.Get("Date"))
   120  		if err != nil {
   121  			if !test.err {
   122  				t.Errorf("#%d:\n got err: %v", i, err)
   123  			}
   124  			continue
   125  		}
   126  		if test.err {
   127  			t.Errorf("#%d:\n  should err", i)
   128  			continue
   129  		}
   130  		if !expect.Equal(d) {
   131  			t.Errorf("#%d:\n got: %v\nwant: %v", i, d, expect)
   132  		}
   133  	}
   134  }
   135  
   136  type hasTokenTest struct {
   137  	header string
   138  	token  string
   139  	want   bool
   140  }
   141  
   142  var hasTokenTests = []hasTokenTest{
   143  	{"", "", false},
   144  	{"", "foo", false},
   145  	{"foo", "foo", true},
   146  	{"foo ", "foo", true},
   147  	{" foo", "foo", true},
   148  	{" foo ", "foo", true},
   149  	{"foo,bar", "foo", true},
   150  	{"bar,foo", "foo", true},
   151  	{"bar, foo", "foo", true},
   152  	{"bar,foo, baz", "foo", true},
   153  	{"bar, foo,baz", "foo", true},
   154  	{"bar,foo, baz", "foo", true},
   155  	{"bar, foo, baz", "foo", true},
   156  	{"FOO", "foo", true},
   157  	{"FOO ", "foo", true},
   158  	{" FOO", "foo", true},
   159  	{" FOO ", "foo", true},
   160  	{"FOO,BAR", "foo", true},
   161  	{"BAR,FOO", "foo", true},
   162  	{"BAR, FOO", "foo", true},
   163  	{"BAR,FOO, baz", "foo", true},
   164  	{"BAR, FOO,BAZ", "foo", true},
   165  	{"BAR,FOO, BAZ", "foo", true},
   166  	{"BAR, FOO, BAZ", "foo", true},
   167  	{"foobar", "foo", false},
   168  	{"barfoo ", "foo", false},
   169  }
   170  
   171  func TestHasToken(t *testing.T) {
   172  	for _, tt := range hasTokenTests {
   173  		if hasToken(tt.header, tt.token) != tt.want {
   174  			t.Errorf("hasToken(%q, %q) = %v; want %v", tt.header, tt.token, !tt.want, tt.want)
   175  		}
   176  	}
   177  }
   178  
   179  var testHeader = Header{
   180  	"Content-Length": {"123"},
   181  	"Content-Type":   {"text/plain"},
   182  	"Date":           {"some date at some time Z"},
   183  	"Server":         {DefaultUserAgent},
   184  }
   185  
   186  var buf bytes.Buffer
   187  
   188  func BenchmarkHeaderWriteSubset(b *testing.B) {
   189  	b.ReportAllocs()
   190  	for i := 0; i < b.N; i++ {
   191  		buf.Reset()
   192  		testHeader.WriteSubset(&buf, nil)
   193  	}
   194  }
   195  
   196  func TestHeaderWriteSubsetAllocs(t *testing.T) {
   197  	if testing.Short() {
   198  		t.Skip("skipping alloc test in short mode")
   199  	}
   200  	if race.Enabled {
   201  		t.Skip("skipping test under race detector")
   202  	}
   203  	if runtime.GOMAXPROCS(0) > 1 {
   204  		t.Skip("skipping; GOMAXPROCS>1")
   205  	}
   206  	n := testing.AllocsPerRun(100, func() {
   207  		buf.Reset()
   208  		testHeader.WriteSubset(&buf, nil)
   209  	})
   210  	if n > 0 {
   211  		t.Errorf("allocs = %g; want 0", n)
   212  	}
   213  }
   214  

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