Source file
src/net/dnsname_test.go
1
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5
6
7 package net
8
9 import (
10 "strings"
11 "testing"
12 )
13
14 type dnsNameTest struct {
15 name string
16 result bool
17 }
18
19 var dnsNameTests = []dnsNameTest{
20
21 {"_xmpp-server._tcp.google.com", true},
22 {"foo.com", true},
23 {"1foo.com", true},
24 {"26.0.0.73.com", true},
25 {"10-0-0-1", true},
26 {"fo-o.com", true},
27 {"fo1o.com", true},
28 {"foo1.com", true},
29 {"a.b..com", false},
30 {"a.b-.com", false},
31 {"a.b.com-", false},
32 {"a.b..", false},
33 {"b.com.", true},
34 }
35
36 func emitDNSNameTest(ch chan<- dnsNameTest) {
37 defer close(ch)
38 var char63 = ""
39 for i := 0; i < 63; i++ {
40 char63 += "a"
41 }
42 char64 := char63 + "a"
43 longDomain := strings.Repeat(char63+".", 5) + "example"
44
45 for _, tc := range dnsNameTests {
46 ch <- tc
47 }
48
49 ch <- dnsNameTest{char63 + ".com", true}
50 ch <- dnsNameTest{char64 + ".com", false}
51
52
53
54
55 ch <- dnsNameTest{longDomain[len(longDomain)-253:], true}
56
57 ch <- dnsNameTest{longDomain[len(longDomain)-253:] + ".", true}
58
59 ch <- dnsNameTest{longDomain[len(longDomain)-254:], false}
60 }
61
62 func TestDNSName(t *testing.T) {
63 ch := make(chan dnsNameTest)
64 go emitDNSNameTest(ch)
65 for tc := range ch {
66 if isDomainName(tc.name) != tc.result {
67 t.Errorf("isDomainName(%q) = %v; want %v", tc.name, !tc.result, tc.result)
68 }
69 }
70 }
71
72 func BenchmarkDNSName(b *testing.B) {
73 testHookUninstaller.Do(uninstallTestHooks)
74
75 benchmarks := append(dnsNameTests, []dnsNameTest{
76 {strings.Repeat("a", 63), true},
77 {strings.Repeat("a", 64), false},
78 }...)
79 for n := 0; n < b.N; n++ {
80 for _, tc := range benchmarks {
81 if isDomainName(tc.name) != tc.result {
82 b.Errorf("isDomainName(%q) = %v; want %v", tc.name, !tc.result, tc.result)
83 }
84 }
85 }
86 }
87
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