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Source file src/net/http/header_test.go

Documentation: net/http

  // Copyright 2011 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 (
  	"bytes"
  	"runtime"
  	"testing"
  	"time"
  )
  
  var headerWriteTests = []struct {
  	h        Header
  	exclude  map[string]bool
  	expected string
  }{
  	{Header{}, nil, ""},
  	{
  		Header{
  			"Content-Type":   {"text/html; charset=UTF-8"},
  			"Content-Length": {"0"},
  		},
  		nil,
  		"Content-Length: 0\r\nContent-Type: text/html; charset=UTF-8\r\n",
  	},
  	{
  		Header{
  			"Content-Length": {"0", "1", "2"},
  		},
  		nil,
  		"Content-Length: 0\r\nContent-Length: 1\r\nContent-Length: 2\r\n",
  	},
  	{
  		Header{
  			"Expires":          {"-1"},
  			"Content-Length":   {"0"},
  			"Content-Encoding": {"gzip"},
  		},
  		map[string]bool{"Content-Length": true},
  		"Content-Encoding: gzip\r\nExpires: -1\r\n",
  	},
  	{
  		Header{
  			"Expires":          {"-1"},
  			"Content-Length":   {"0", "1", "2"},
  			"Content-Encoding": {"gzip"},
  		},
  		map[string]bool{"Content-Length": true},
  		"Content-Encoding: gzip\r\nExpires: -1\r\n",
  	},
  	{
  		Header{
  			"Expires":          {"-1"},
  			"Content-Length":   {"0"},
  			"Content-Encoding": {"gzip"},
  		},
  		map[string]bool{"Content-Length": true, "Expires": true, "Content-Encoding": true},
  		"",
  	},
  	{
  		Header{
  			"Nil":          nil,
  			"Empty":        {},
  			"Blank":        {""},
  			"Double-Blank": {"", ""},
  		},
  		nil,
  		"Blank: \r\nDouble-Blank: \r\nDouble-Blank: \r\n",
  	},
  	// Tests header sorting when over the insertion sort threshold side:
  	{
  		Header{
  			"k1": {"1a", "1b"},
  			"k2": {"2a", "2b"},
  			"k3": {"3a", "3b"},
  			"k4": {"4a", "4b"},
  			"k5": {"5a", "5b"},
  			"k6": {"6a", "6b"},
  			"k7": {"7a", "7b"},
  			"k8": {"8a", "8b"},
  			"k9": {"9a", "9b"},
  		},
  		map[string]bool{"k5": true},
  		"k1: 1a\r\nk1: 1b\r\nk2: 2a\r\nk2: 2b\r\nk3: 3a\r\nk3: 3b\r\n" +
  			"k4: 4a\r\nk4: 4b\r\nk6: 6a\r\nk6: 6b\r\n" +
  			"k7: 7a\r\nk7: 7b\r\nk8: 8a\r\nk8: 8b\r\nk9: 9a\r\nk9: 9b\r\n",
  	},
  }
  
  func TestHeaderWrite(t *testing.T) {
  	var buf bytes.Buffer
  	for i, test := range headerWriteTests {
  		test.h.WriteSubset(&buf, test.exclude)
  		if buf.String() != test.expected {
  			t.Errorf("#%d:\n got: %q\nwant: %q", i, buf.String(), test.expected)
  		}
  		buf.Reset()
  	}
  }
  
  var parseTimeTests = []struct {
  	h   Header
  	err bool
  }{
  	{Header{"Date": {""}}, true},
  	{Header{"Date": {"invalid"}}, true},
  	{Header{"Date": {"1994-11-06T08:49:37Z00:00"}}, true},
  	{Header{"Date": {"Sun, 06 Nov 1994 08:49:37 GMT"}}, false},
  	{Header{"Date": {"Sunday, 06-Nov-94 08:49:37 GMT"}}, false},
  	{Header{"Date": {"Sun Nov  6 08:49:37 1994"}}, false},
  }
  
  func TestParseTime(t *testing.T) {
  	expect := time.Date(1994, 11, 6, 8, 49, 37, 0, time.UTC)
  	for i, test := range parseTimeTests {
  		d, err := ParseTime(test.h.Get("Date"))
  		if err != nil {
  			if !test.err {
  				t.Errorf("#%d:\n got err: %v", i, err)
  			}
  			continue
  		}
  		if test.err {
  			t.Errorf("#%d:\n  should err", i)
  			continue
  		}
  		if !expect.Equal(d) {
  			t.Errorf("#%d:\n got: %v\nwant: %v", i, d, expect)
  		}
  	}
  }
  
  type hasTokenTest struct {
  	header string
  	token  string
  	want   bool
  }
  
  var hasTokenTests = []hasTokenTest{
  	{"", "", false},
  	{"", "foo", false},
  	{"foo", "foo", true},
  	{"foo ", "foo", true},
  	{" foo", "foo", true},
  	{" foo ", "foo", true},
  	{"foo,bar", "foo", true},
  	{"bar,foo", "foo", true},
  	{"bar, foo", "foo", true},
  	{"bar,foo, baz", "foo", true},
  	{"bar, foo,baz", "foo", true},
  	{"bar,foo, baz", "foo", true},
  	{"bar, foo, baz", "foo", true},
  	{"FOO", "foo", true},
  	{"FOO ", "foo", true},
  	{" FOO", "foo", true},
  	{" FOO ", "foo", true},
  	{"FOO,BAR", "foo", true},
  	{"BAR,FOO", "foo", true},
  	{"BAR, FOO", "foo", true},
  	{"BAR,FOO, baz", "foo", true},
  	{"BAR, FOO,BAZ", "foo", true},
  	{"BAR,FOO, BAZ", "foo", true},
  	{"BAR, FOO, BAZ", "foo", true},
  	{"foobar", "foo", false},
  	{"barfoo ", "foo", false},
  }
  
  func TestHasToken(t *testing.T) {
  	for _, tt := range hasTokenTests {
  		if hasToken(tt.header, tt.token) != tt.want {
  			t.Errorf("hasToken(%q, %q) = %v; want %v", tt.header, tt.token, !tt.want, tt.want)
  		}
  	}
  }
  
  var testHeader = Header{
  	"Content-Length": {"123"},
  	"Content-Type":   {"text/plain"},
  	"Date":           {"some date at some time Z"},
  	"Server":         {DefaultUserAgent},
  }
  
  var buf bytes.Buffer
  
  func BenchmarkHeaderWriteSubset(b *testing.B) {
  	b.ReportAllocs()
  	for i := 0; i < b.N; i++ {
  		buf.Reset()
  		testHeader.WriteSubset(&buf, nil)
  	}
  }
  
  func TestHeaderWriteSubsetAllocs(t *testing.T) {
  	if testing.Short() {
  		t.Skip("skipping alloc test in short mode")
  	}
  	if raceEnabled {
  		t.Skip("skipping test under race detector")
  	}
  	if runtime.GOMAXPROCS(0) > 1 {
  		t.Skip("skipping; GOMAXPROCS>1")
  	}
  	n := testing.AllocsPerRun(100, func() {
  		buf.Reset()
  		testHeader.WriteSubset(&buf, nil)
  	})
  	if n > 0 {
  		t.Errorf("allocs = %g; want 0", n)
  	}
  }
  

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