// Copyright 2009 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. // +build !js package net import ( "os" "testing" ) var tcpServerTests = []struct { snet, saddr string // server endpoint tnet, taddr string // target endpoint for client }{ {snet: "tcp", saddr: ":0", tnet: "tcp", taddr: "127.0.0.1"}, {snet: "tcp", saddr: "0.0.0.0:0", tnet: "tcp", taddr: "127.0.0.1"}, {snet: "tcp", saddr: "[::ffff:0.0.0.0]:0", tnet: "tcp", taddr: "127.0.0.1"}, {snet: "tcp", saddr: "[::]:0", tnet: "tcp", taddr: "::1"}, {snet: "tcp", saddr: ":0", tnet: "tcp", taddr: "::1"}, {snet: "tcp", saddr: "0.0.0.0:0", tnet: "tcp", taddr: "::1"}, {snet: "tcp", saddr: "[::ffff:0.0.0.0]:0", tnet: "tcp", taddr: "::1"}, {snet: "tcp", saddr: "[::]:0", tnet: "tcp", taddr: "127.0.0.1"}, {snet: "tcp", saddr: ":0", tnet: "tcp4", taddr: "127.0.0.1"}, {snet: "tcp", saddr: "0.0.0.0:0", tnet: "tcp4", taddr: "127.0.0.1"}, {snet: "tcp", saddr: "[::ffff:0.0.0.0]:0", tnet: "tcp4", taddr: "127.0.0.1"}, {snet: "tcp", saddr: "[::]:0", tnet: "tcp6", taddr: "::1"}, {snet: "tcp", saddr: ":0", tnet: "tcp6", taddr: "::1"}, {snet: "tcp", saddr: "0.0.0.0:0", tnet: "tcp6", taddr: "::1"}, {snet: "tcp", saddr: "[::ffff:0.0.0.0]:0", tnet: "tcp6", taddr: "::1"}, {snet: "tcp", saddr: "[::]:0", tnet: "tcp4", taddr: "127.0.0.1"}, {snet: "tcp", saddr: "127.0.0.1:0", tnet: "tcp", taddr: "127.0.0.1"}, {snet: "tcp", saddr: "[::ffff:127.0.0.1]:0", tnet: "tcp", taddr: "127.0.0.1"}, {snet: "tcp", saddr: "[::1]:0", tnet: "tcp", taddr: "::1"}, {snet: "tcp4", saddr: ":0", tnet: "tcp4", taddr: "127.0.0.1"}, {snet: "tcp4", saddr: "0.0.0.0:0", tnet: "tcp4", taddr: "127.0.0.1"}, {snet: "tcp4", saddr: "[::ffff:0.0.0.0]:0", tnet: "tcp4", taddr: "127.0.0.1"}, {snet: "tcp4", saddr: "127.0.0.1:0", tnet: "tcp4", taddr: "127.0.0.1"}, {snet: "tcp6", saddr: ":0", tnet: "tcp6", taddr: "::1"}, {snet: "tcp6", saddr: "[::]:0", tnet: "tcp6", taddr: "::1"}, {snet: "tcp6", saddr: "[::1]:0", tnet: "tcp6", taddr: "::1"}, } // TestTCPServer tests concurrent accept-read-write servers. func TestTCPServer(t *testing.T) { const N = 3 for i, tt := range tcpServerTests { t.Run(tt.snet+" "+tt.saddr+"<-"+tt.taddr, func(t *testing.T) { if !testableListenArgs(tt.snet, tt.saddr, tt.taddr) { t.Skip("not testable") } ln, err := Listen(tt.snet, tt.saddr) if err != nil { if perr := parseDialError(err); perr != nil { t.Error(perr) } t.Fatal(err) } var lss []*localServer var tpchs []chan error defer func() { for _, ls := range lss { ls.teardown() } }() for i := 0; i < N; i++ { ls, err := (&streamListener{Listener: ln}).newLocalServer() if err != nil { t.Fatal(err) } lss = append(lss, ls) tpchs = append(tpchs, make(chan error, 1)) } for i := 0; i < N; i++ { ch := tpchs[i] handler := func(ls *localServer, ln Listener) { ls.transponder(ln, ch) } if err := lss[i].buildup(handler); err != nil { t.Fatal(err) } } var trchs []chan error for i := 0; i < N; i++ { _, port, err := SplitHostPort(lss[i].Listener.Addr().String()) if err != nil { t.Fatal(err) } d := Dialer{Timeout: someTimeout} c, err := d.Dial(tt.tnet, JoinHostPort(tt.taddr, port)) if err != nil { if perr := parseDialError(err); perr != nil { t.Error(perr) } if tt.taddr == "::1" && os.Getenv("GO_BUILDER_NAME") == "darwin-amd64-10_12" && os.IsTimeout(err) { // A suspected kernel bug in macOS 10.12 occasionally results in // "i/o timeout" errors when dialing address ::1. The errors have not // been observed on newer versions of the OS, so we don't plan to work // around them. See https://golang.org/issue/32919. t.Skipf("skipping due to error on known-flaky macOS 10.12 builder: %v", err) } t.Fatal(err) } defer c.Close() trchs = append(trchs, make(chan error, 1)) go transceiver(c, []byte("TCP SERVER TEST"), trchs[i]) } for _, ch := range trchs { for err := range ch { t.Errorf("#%d: %v", i, err) } } for _, ch := range tpchs { for err := range ch { t.Errorf("#%d: %v", i, err) } } }) } } var unixAndUnixpacketServerTests = []struct { network, address string }{ {"unix", testUnixAddr()}, {"unix", "@nettest/go/unix"}, {"unixpacket", testUnixAddr()}, {"unixpacket", "@nettest/go/unixpacket"}, } // TestUnixAndUnixpacketServer tests concurrent accept-read-write // servers func TestUnixAndUnixpacketServer(t *testing.T) { const N = 3 for i, tt := range unixAndUnixpacketServerTests { if !testableListenArgs(tt.network, tt.address, "") { t.Logf("skipping %s test", tt.network+" "+tt.address) continue } ln, err := Listen(tt.network, tt.address) if err != nil { if perr := parseDialError(err); perr != nil { t.Error(perr) } t.Fatal(err) } var lss []*localServer var tpchs []chan error defer func() { for _, ls := range lss { ls.teardown() } }() for i := 0; i < N; i++ { ls, err := (&streamListener{Listener: ln}).newLocalServer() if err != nil { t.Fatal(err) } lss = append(lss, ls) tpchs = append(tpchs, make(chan error, 1)) } for i := 0; i < N; i++ { ch := tpchs[i] handler := func(ls *localServer, ln Listener) { ls.transponder(ln, ch) } if err := lss[i].buildup(handler); err != nil { t.Fatal(err) } } var trchs []chan error for i := 0; i < N; i++ { d := Dialer{Timeout: someTimeout} c, err := d.Dial(lss[i].Listener.Addr().Network(), lss[i].Listener.Addr().String()) if err != nil { if perr := parseDialError(err); perr != nil { t.Error(perr) } t.Fatal(err) } defer os.Remove(c.LocalAddr().String()) defer c.Close() trchs = append(trchs, make(chan error, 1)) go transceiver(c, []byte("UNIX AND UNIXPACKET SERVER TEST"), trchs[i]) } for _, ch := range trchs { for err := range ch { t.Errorf("#%d: %v", i, err) } } for _, ch := range tpchs { for err := range ch { t.Errorf("#%d: %v", i, err) } } } } var udpServerTests = []struct { snet, saddr string // server endpoint tnet, taddr string // target endpoint for client dial bool // test with Dial }{ {snet: "udp", saddr: ":0", tnet: "udp", taddr: "127.0.0.1"}, {snet: "udp", saddr: "0.0.0.0:0", tnet: "udp", taddr: "127.0.0.1"}, {snet: "udp", saddr: "[::ffff:0.0.0.0]:0", tnet: "udp", taddr: "127.0.0.1"}, {snet: "udp", saddr: "[::]:0", tnet: "udp", taddr: "::1"}, {snet: "udp", saddr: ":0", tnet: "udp", taddr: "::1"}, {snet: "udp", saddr: "0.0.0.0:0", tnet: "udp", taddr: "::1"}, {snet: "udp", saddr: "[::ffff:0.0.0.0]:0", tnet: "udp", taddr: "::1"}, {snet: "udp", saddr: "[::]:0", tnet: "udp", taddr: "127.0.0.1"}, {snet: "udp", saddr: ":0", tnet: "udp4", taddr: "127.0.0.1"}, {snet: "udp", saddr: "0.0.0.0:0", tnet: "udp4", taddr: "127.0.0.1"}, {snet: "udp", saddr: "[::ffff:0.0.0.0]:0", tnet: "udp4", taddr: "127.0.0.1"}, {snet: "udp", saddr: "[::]:0", tnet: "udp6", taddr: "::1"}, {snet: "udp", saddr: ":0", tnet: "udp6", taddr: "::1"}, {snet: "udp", saddr: "0.0.0.0:0", tnet: "udp6", taddr: "::1"}, {snet: "udp", saddr: "[::ffff:0.0.0.0]:0", tnet: "udp6", taddr: "::1"}, {snet: "udp", saddr: "[::]:0", tnet: "udp4", taddr: "127.0.0.1"}, {snet: "udp", saddr: "127.0.0.1:0", tnet: "udp", taddr: "127.0.0.1"}, {snet: "udp", saddr: "[::ffff:127.0.0.1]:0", tnet: "udp", taddr: "127.0.0.1"}, {snet: "udp", saddr: "[::1]:0", tnet: "udp", taddr: "::1"}, {snet: "udp4", saddr: ":0", tnet: "udp4", taddr: "127.0.0.1"}, {snet: "udp4", saddr: "0.0.0.0:0", tnet: "udp4", taddr: "127.0.0.1"}, {snet: "udp4", saddr: "[::ffff:0.0.0.0]:0", tnet: "udp4", taddr: "127.0.0.1"}, {snet: "udp4", saddr: "127.0.0.1:0", tnet: "udp4", taddr: "127.0.0.1"}, {snet: "udp6", saddr: ":0", tnet: "udp6", taddr: "::1"}, {snet: "udp6", saddr: "[::]:0", tnet: "udp6", taddr: "::1"}, {snet: "udp6", saddr: "[::1]:0", tnet: "udp6", taddr: "::1"}, {snet: "udp", saddr: "127.0.0.1:0", tnet: "udp", taddr: "127.0.0.1", dial: true}, {snet: "udp", saddr: "[::1]:0", tnet: "udp", taddr: "::1", dial: true}, } func TestUDPServer(t *testing.T) { for i, tt := range udpServerTests { if !testableListenArgs(tt.snet, tt.saddr, tt.taddr) { t.Logf("skipping %s test", tt.snet+" "+tt.saddr+"<-"+tt.taddr) continue } c1, err := ListenPacket(tt.snet, tt.saddr) if err != nil { if perr := parseDialError(err); perr != nil { t.Error(perr) } t.Fatal(err) } ls, err := (&packetListener{PacketConn: c1}).newLocalServer() if err != nil { t.Fatal(err) } defer ls.teardown() tpch := make(chan error, 1) handler := func(ls *localPacketServer, c PacketConn) { packetTransponder(c, tpch) } if err := ls.buildup(handler); err != nil { t.Fatal(err) } trch := make(chan error, 1) _, port, err := SplitHostPort(ls.PacketConn.LocalAddr().String()) if err != nil { t.Fatal(err) } if tt.dial { d := Dialer{Timeout: someTimeout} c2, err := d.Dial(tt.tnet, JoinHostPort(tt.taddr, port)) if err != nil { if perr := parseDialError(err); perr != nil { t.Error(perr) } t.Fatal(err) } defer c2.Close() go transceiver(c2, []byte("UDP SERVER TEST"), trch) } else { c2, err := ListenPacket(tt.tnet, JoinHostPort(tt.taddr, "0")) if err != nil { if perr := parseDialError(err); perr != nil { t.Error(perr) } t.Fatal(err) } defer c2.Close() dst, err := ResolveUDPAddr(tt.tnet, JoinHostPort(tt.taddr, port)) if err != nil { t.Fatal(err) } go packetTransceiver(c2, []byte("UDP SERVER TEST"), dst, trch) } for err := range trch { t.Errorf("#%d: %v", i, err) } for err := range tpch { t.Errorf("#%d: %v", i, err) } } } var unixgramServerTests = []struct { saddr string // server endpoint caddr string // client endpoint dial bool // test with Dial }{ {saddr: testUnixAddr(), caddr: testUnixAddr()}, {saddr: testUnixAddr(), caddr: testUnixAddr(), dial: true}, {saddr: "@nettest/go/unixgram/server", caddr: "@nettest/go/unixgram/client"}, } func TestUnixgramServer(t *testing.T) { for i, tt := range unixgramServerTests { if !testableListenArgs("unixgram", tt.saddr, "") { t.Logf("skipping %s test", "unixgram "+tt.saddr+"<-"+tt.caddr) continue } c1, err := ListenPacket("unixgram", tt.saddr) if err != nil { if perr := parseDialError(err); perr != nil { t.Error(perr) } t.Fatal(err) } ls, err := (&packetListener{PacketConn: c1}).newLocalServer() if err != nil { t.Fatal(err) } defer ls.teardown() tpch := make(chan error, 1) handler := func(ls *localPacketServer, c PacketConn) { packetTransponder(c, tpch) } if err := ls.buildup(handler); err != nil { t.Fatal(err) } trch := make(chan error, 1) if tt.dial { d := Dialer{Timeout: someTimeout, LocalAddr: &UnixAddr{Net: "unixgram", Name: tt.caddr}} c2, err := d.Dial("unixgram", ls.PacketConn.LocalAddr().String()) if err != nil { if perr := parseDialError(err); perr != nil { t.Error(perr) } t.Fatal(err) } defer os.Remove(c2.LocalAddr().String()) defer c2.Close() go transceiver(c2, []byte(c2.LocalAddr().String()), trch) } else { c2, err := ListenPacket("unixgram", tt.caddr) if err != nil { if perr := parseDialError(err); perr != nil { t.Error(perr) } t.Fatal(err) } defer os.Remove(c2.LocalAddr().String()) defer c2.Close() go packetTransceiver(c2, []byte("UNIXGRAM SERVER TEST"), ls.PacketConn.LocalAddr(), trch) } for err := range trch { t.Errorf("#%d: %v", i, err) } for err := range tpch { t.Errorf("#%d: %v", i, err) } } }