138 lines
3.7 KiB
Go
138 lines
3.7 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// TODO It would be nice to use a mock DNS server, to eliminate
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// external dependencies.
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package net
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import (
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"flag"
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"strings"
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"testing"
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)
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var testExternal = flag.Bool("external", true, "allow use of external networks during long test")
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func TestGoogleSRV(t *testing.T) {
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if testing.Short() || !*testExternal {
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t.Skip("skipping test to avoid external network")
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}
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_, addrs, err := LookupSRV("xmpp-server", "tcp", "google.com")
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if err != nil {
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t.Errorf("failed: %s", err)
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}
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if len(addrs) == 0 {
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t.Errorf("no results")
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}
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// Non-standard back door.
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_, addrs, err = LookupSRV("", "", "_xmpp-server._tcp.google.com")
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if err != nil {
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t.Errorf("back door failed: %s", err)
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}
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if len(addrs) == 0 {
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t.Errorf("back door no results")
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}
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}
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func TestGmailMX(t *testing.T) {
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if testing.Short() || !*testExternal {
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t.Skip("skipping test to avoid external network")
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}
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mx, err := LookupMX("gmail.com")
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if err != nil {
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t.Errorf("failed: %s", err)
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}
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if len(mx) == 0 {
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t.Errorf("no results")
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}
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}
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func TestGmailNS(t *testing.T) {
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if testing.Short() || !*testExternal {
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t.Skip("skipping test to avoid external network")
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}
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ns, err := LookupNS("gmail.com")
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if err != nil {
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t.Errorf("failed: %s", err)
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}
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if len(ns) == 0 {
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t.Errorf("no results")
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}
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}
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func TestGmailTXT(t *testing.T) {
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if testing.Short() || !*testExternal {
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t.Skip("skipping test to avoid external network")
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}
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txt, err := LookupTXT("gmail.com")
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if err != nil {
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t.Errorf("failed: %s", err)
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}
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if len(txt) == 0 || len(txt[0]) == 0 {
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t.Errorf("no results")
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}
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}
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func TestGoogleDNSAddr(t *testing.T) {
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if testing.Short() || !*testExternal {
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t.Skip("skipping test to avoid external network")
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}
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names, err := LookupAddr("8.8.8.8")
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if err != nil {
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t.Errorf("failed: %s", err)
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}
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if len(names) == 0 {
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t.Errorf("no results")
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}
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}
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func TestLookupIANACNAME(t *testing.T) {
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if testing.Short() || !*testExternal {
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t.Skip("skipping test to avoid external network")
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}
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cname, err := LookupCNAME("www.iana.org")
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if !strings.HasSuffix(cname, ".icann.org.") || err != nil {
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t.Errorf(`LookupCNAME("www.iana.org.") = %q, %v, want "*.icann.org.", nil`, cname, err)
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}
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}
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var revAddrTests = []struct {
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Addr string
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Reverse string
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ErrPrefix string
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}{
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{"1.2.3.4", "4.3.2.1.in-addr.arpa.", ""},
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{"245.110.36.114", "114.36.110.245.in-addr.arpa.", ""},
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{"::ffff:12.34.56.78", "78.56.34.12.in-addr.arpa.", ""},
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{"::1", "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa.", ""},
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{"1::", "0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.0.0.0.ip6.arpa.", ""},
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{"1234:567::89a:bcde", "e.d.c.b.a.9.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.6.5.0.4.3.2.1.ip6.arpa.", ""},
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{"1234:567:fefe:bcbc:adad:9e4a:89a:bcde", "e.d.c.b.a.9.8.0.a.4.e.9.d.a.d.a.c.b.c.b.e.f.e.f.7.6.5.0.4.3.2.1.ip6.arpa.", ""},
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{"1.2.3", "", "unrecognized address"},
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{"1.2.3.4.5", "", "unrecognized address"},
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{"1234:567:bcbca::89a:bcde", "", "unrecognized address"},
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{"1234:567::bcbc:adad::89a:bcde", "", "unrecognized address"},
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}
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func TestReverseAddress(t *testing.T) {
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for i, tt := range revAddrTests {
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a, err := reverseaddr(tt.Addr)
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if len(tt.ErrPrefix) > 0 && err == nil {
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t.Errorf("#%d: expected %q, got <nil> (error)", i, tt.ErrPrefix)
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continue
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}
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if len(tt.ErrPrefix) == 0 && err != nil {
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t.Errorf("#%d: expected <nil>, got %q (error)", i, err)
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}
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if err != nil && err.(*DNSError).Err != tt.ErrPrefix {
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t.Errorf("#%d: expected %q, got %q (mismatched error)", i, tt.ErrPrefix, err.(*DNSError).Err)
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}
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if a != tt.Reverse {
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t.Errorf("#%d: expected %q, got %q (reverse address)", i, tt.Reverse, a)
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}
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}
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}
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