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

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