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-rw-r--r--src/net/ipsock_test.go282
1 files changed, 282 insertions, 0 deletions
diff --git a/src/net/ipsock_test.go b/src/net/ipsock_test.go
new file mode 100644
index 0000000..aede354
--- /dev/null
+++ b/src/net/ipsock_test.go
@@ -0,0 +1,282 @@
+// Copyright 2013 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 net
+
+import (
+ "reflect"
+ "testing"
+)
+
+var testInetaddr = func(ip IPAddr) Addr { return &TCPAddr{IP: ip.IP, Port: 5682, Zone: ip.Zone} }
+
+var addrListTests = []struct {
+ filter func(IPAddr) bool
+ ips []IPAddr
+ inetaddr func(IPAddr) Addr
+ first Addr
+ primaries addrList
+ fallbacks addrList
+ err error
+}{
+ {
+ nil,
+ []IPAddr{
+ {IP: IPv4(127, 0, 0, 1)},
+ {IP: IPv6loopback},
+ },
+ testInetaddr,
+ &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
+ addrList{&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682}},
+ addrList{&TCPAddr{IP: IPv6loopback, Port: 5682}},
+ nil,
+ },
+ {
+ nil,
+ []IPAddr{
+ {IP: IPv6loopback},
+ {IP: IPv4(127, 0, 0, 1)},
+ },
+ testInetaddr,
+ &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
+ addrList{&TCPAddr{IP: IPv6loopback, Port: 5682}},
+ addrList{&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682}},
+ nil,
+ },
+ {
+ nil,
+ []IPAddr{
+ {IP: IPv4(127, 0, 0, 1)},
+ {IP: IPv4(192, 168, 0, 1)},
+ },
+ testInetaddr,
+ &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
+ addrList{
+ &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
+ &TCPAddr{IP: IPv4(192, 168, 0, 1), Port: 5682},
+ },
+ nil,
+ nil,
+ },
+ {
+ nil,
+ []IPAddr{
+ {IP: IPv6loopback},
+ {IP: ParseIP("fe80::1"), Zone: "eth0"},
+ },
+ testInetaddr,
+ &TCPAddr{IP: IPv6loopback, Port: 5682},
+ addrList{
+ &TCPAddr{IP: IPv6loopback, Port: 5682},
+ &TCPAddr{IP: ParseIP("fe80::1"), Port: 5682, Zone: "eth0"},
+ },
+ nil,
+ nil,
+ },
+ {
+ nil,
+ []IPAddr{
+ {IP: IPv4(127, 0, 0, 1)},
+ {IP: IPv4(192, 168, 0, 1)},
+ {IP: IPv6loopback},
+ {IP: ParseIP("fe80::1"), Zone: "eth0"},
+ },
+ testInetaddr,
+ &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
+ addrList{
+ &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
+ &TCPAddr{IP: IPv4(192, 168, 0, 1), Port: 5682},
+ },
+ addrList{
+ &TCPAddr{IP: IPv6loopback, Port: 5682},
+ &TCPAddr{IP: ParseIP("fe80::1"), Port: 5682, Zone: "eth0"},
+ },
+ nil,
+ },
+ {
+ nil,
+ []IPAddr{
+ {IP: IPv6loopback},
+ {IP: ParseIP("fe80::1"), Zone: "eth0"},
+ {IP: IPv4(127, 0, 0, 1)},
+ {IP: IPv4(192, 168, 0, 1)},
+ },
+ testInetaddr,
+ &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
+ addrList{
+ &TCPAddr{IP: IPv6loopback, Port: 5682},
+ &TCPAddr{IP: ParseIP("fe80::1"), Port: 5682, Zone: "eth0"},
+ },
+ addrList{
+ &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
+ &TCPAddr{IP: IPv4(192, 168, 0, 1), Port: 5682},
+ },
+ nil,
+ },
+ {
+ nil,
+ []IPAddr{
+ {IP: IPv4(127, 0, 0, 1)},
+ {IP: IPv6loopback},
+ {IP: IPv4(192, 168, 0, 1)},
+ {IP: ParseIP("fe80::1"), Zone: "eth0"},
+ },
+ testInetaddr,
+ &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
+ addrList{
+ &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
+ &TCPAddr{IP: IPv4(192, 168, 0, 1), Port: 5682},
+ },
+ addrList{
+ &TCPAddr{IP: IPv6loopback, Port: 5682},
+ &TCPAddr{IP: ParseIP("fe80::1"), Port: 5682, Zone: "eth0"},
+ },
+ nil,
+ },
+ {
+ nil,
+ []IPAddr{
+ {IP: IPv6loopback},
+ {IP: IPv4(127, 0, 0, 1)},
+ {IP: ParseIP("fe80::1"), Zone: "eth0"},
+ {IP: IPv4(192, 168, 0, 1)},
+ },
+ testInetaddr,
+ &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
+ addrList{
+ &TCPAddr{IP: IPv6loopback, Port: 5682},
+ &TCPAddr{IP: ParseIP("fe80::1"), Port: 5682, Zone: "eth0"},
+ },
+ addrList{
+ &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
+ &TCPAddr{IP: IPv4(192, 168, 0, 1), Port: 5682},
+ },
+ nil,
+ },
+
+ {
+ ipv4only,
+ []IPAddr{
+ {IP: IPv4(127, 0, 0, 1)},
+ {IP: IPv6loopback},
+ },
+ testInetaddr,
+ &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
+ addrList{&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682}},
+ nil,
+ nil,
+ },
+ {
+ ipv4only,
+ []IPAddr{
+ {IP: IPv6loopback},
+ {IP: IPv4(127, 0, 0, 1)},
+ },
+ testInetaddr,
+ &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
+ addrList{&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682}},
+ nil,
+ nil,
+ },
+
+ {
+ ipv6only,
+ []IPAddr{
+ {IP: IPv4(127, 0, 0, 1)},
+ {IP: IPv6loopback},
+ },
+ testInetaddr,
+ &TCPAddr{IP: IPv6loopback, Port: 5682},
+ addrList{&TCPAddr{IP: IPv6loopback, Port: 5682}},
+ nil,
+ nil,
+ },
+ {
+ ipv6only,
+ []IPAddr{
+ {IP: IPv6loopback},
+ {IP: IPv4(127, 0, 0, 1)},
+ },
+ testInetaddr,
+ &TCPAddr{IP: IPv6loopback, Port: 5682},
+ addrList{&TCPAddr{IP: IPv6loopback, Port: 5682}},
+ nil,
+ nil,
+ },
+
+ {nil, nil, testInetaddr, nil, nil, nil, &AddrError{errNoSuitableAddress.Error(), "ADDR"}},
+
+ {ipv4only, nil, testInetaddr, nil, nil, nil, &AddrError{errNoSuitableAddress.Error(), "ADDR"}},
+ {ipv4only, []IPAddr{{IP: IPv6loopback}}, testInetaddr, nil, nil, nil, &AddrError{errNoSuitableAddress.Error(), "ADDR"}},
+
+ {ipv6only, nil, testInetaddr, nil, nil, nil, &AddrError{errNoSuitableAddress.Error(), "ADDR"}},
+ {ipv6only, []IPAddr{{IP: IPv4(127, 0, 0, 1)}}, testInetaddr, nil, nil, nil, &AddrError{errNoSuitableAddress.Error(), "ADDR"}},
+}
+
+func TestAddrList(t *testing.T) {
+ if !supportsIPv4() || !supportsIPv6() {
+ t.Skip("both IPv4 and IPv6 are required")
+ }
+
+ for i, tt := range addrListTests {
+ addrs, err := filterAddrList(tt.filter, tt.ips, tt.inetaddr, "ADDR")
+ if !reflect.DeepEqual(err, tt.err) {
+ t.Errorf("#%v: got %v; want %v", i, err, tt.err)
+ }
+ if tt.err != nil {
+ if len(addrs) != 0 {
+ t.Errorf("#%v: got %v; want 0", i, len(addrs))
+ }
+ continue
+ }
+ first := addrs.first(isIPv4)
+ if !reflect.DeepEqual(first, tt.first) {
+ t.Errorf("#%v: got %v; want %v", i, first, tt.first)
+ }
+ primaries, fallbacks := addrs.partition(isIPv4)
+ if !reflect.DeepEqual(primaries, tt.primaries) {
+ t.Errorf("#%v: got %v; want %v", i, primaries, tt.primaries)
+ }
+ if !reflect.DeepEqual(fallbacks, tt.fallbacks) {
+ t.Errorf("#%v: got %v; want %v", i, fallbacks, tt.fallbacks)
+ }
+ expectedLen := len(primaries) + len(fallbacks)
+ if len(addrs) != expectedLen {
+ t.Errorf("#%v: got %v; want %v", i, len(addrs), expectedLen)
+ }
+ }
+}
+
+func TestAddrListPartition(t *testing.T) {
+ addrs := addrList{
+ &IPAddr{IP: ParseIP("fe80::"), Zone: "eth0"},
+ &IPAddr{IP: ParseIP("fe80::1"), Zone: "eth0"},
+ &IPAddr{IP: ParseIP("fe80::2"), Zone: "eth0"},
+ }
+ cases := []struct {
+ lastByte byte
+ primaries addrList
+ fallbacks addrList
+ }{
+ {0, addrList{addrs[0]}, addrList{addrs[1], addrs[2]}},
+ {1, addrList{addrs[0], addrs[2]}, addrList{addrs[1]}},
+ {2, addrList{addrs[0], addrs[1]}, addrList{addrs[2]}},
+ {3, addrList{addrs[0], addrs[1], addrs[2]}, nil},
+ }
+ for i, tt := range cases {
+ // Inverting the function's output should not affect the outcome.
+ for _, invert := range []bool{false, true} {
+ primaries, fallbacks := addrs.partition(func(a Addr) bool {
+ ip := a.(*IPAddr).IP
+ return (ip[len(ip)-1] == tt.lastByte) != invert
+ })
+ if !reflect.DeepEqual(primaries, tt.primaries) {
+ t.Errorf("#%v: got %v; want %v", i, primaries, tt.primaries)
+ }
+ if !reflect.DeepEqual(fallbacks, tt.fallbacks) {
+ t.Errorf("#%v: got %v; want %v", i, fallbacks, tt.fallbacks)
+ }
+ }
+ }
+}
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