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Diffstat (limited to 'src/pkg/net/tcp_test.go')
-rw-r--r--src/pkg/net/tcp_test.go611
1 files changed, 0 insertions, 611 deletions
diff --git a/src/pkg/net/tcp_test.go b/src/pkg/net/tcp_test.go
deleted file mode 100644
index c04198ea0..000000000
--- a/src/pkg/net/tcp_test.go
+++ /dev/null
@@ -1,611 +0,0 @@
-// Copyright 2012 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 (
- "fmt"
- "io"
- "reflect"
- "runtime"
- "sync"
- "testing"
- "time"
-)
-
-func BenchmarkTCP4OneShot(b *testing.B) {
- benchmarkTCP(b, false, false, "127.0.0.1:0")
-}
-
-func BenchmarkTCP4OneShotTimeout(b *testing.B) {
- benchmarkTCP(b, false, true, "127.0.0.1:0")
-}
-
-func BenchmarkTCP4Persistent(b *testing.B) {
- benchmarkTCP(b, true, false, "127.0.0.1:0")
-}
-
-func BenchmarkTCP4PersistentTimeout(b *testing.B) {
- benchmarkTCP(b, true, true, "127.0.0.1:0")
-}
-
-func BenchmarkTCP6OneShot(b *testing.B) {
- if !supportsIPv6 {
- b.Skip("ipv6 is not supported")
- }
- benchmarkTCP(b, false, false, "[::1]:0")
-}
-
-func BenchmarkTCP6OneShotTimeout(b *testing.B) {
- if !supportsIPv6 {
- b.Skip("ipv6 is not supported")
- }
- benchmarkTCP(b, false, true, "[::1]:0")
-}
-
-func BenchmarkTCP6Persistent(b *testing.B) {
- if !supportsIPv6 {
- b.Skip("ipv6 is not supported")
- }
- benchmarkTCP(b, true, false, "[::1]:0")
-}
-
-func BenchmarkTCP6PersistentTimeout(b *testing.B) {
- if !supportsIPv6 {
- b.Skip("ipv6 is not supported")
- }
- benchmarkTCP(b, true, true, "[::1]:0")
-}
-
-func benchmarkTCP(b *testing.B, persistent, timeout bool, laddr string) {
- const msgLen = 512
- conns := b.N
- numConcurrent := runtime.GOMAXPROCS(-1) * 2
- msgs := 1
- if persistent {
- conns = numConcurrent
- msgs = b.N / conns
- if msgs == 0 {
- msgs = 1
- }
- if conns > b.N {
- conns = b.N
- }
- }
- sendMsg := func(c Conn, buf []byte) bool {
- n, err := c.Write(buf)
- if n != len(buf) || err != nil {
- b.Logf("Write failed: %v", err)
- return false
- }
- return true
- }
- recvMsg := func(c Conn, buf []byte) bool {
- for read := 0; read != len(buf); {
- n, err := c.Read(buf)
- read += n
- if err != nil {
- b.Logf("Read failed: %v", err)
- return false
- }
- }
- return true
- }
- ln, err := Listen("tcp", laddr)
- if err != nil {
- b.Fatalf("Listen failed: %v", err)
- }
- defer ln.Close()
- serverSem := make(chan bool, numConcurrent)
- // Acceptor.
- go func() {
- for {
- c, err := ln.Accept()
- if err != nil {
- break
- }
- serverSem <- true
- // Server connection.
- go func(c Conn) {
- defer func() {
- c.Close()
- <-serverSem
- }()
- if timeout {
- c.SetDeadline(time.Now().Add(time.Hour)) // Not intended to fire.
- }
- var buf [msgLen]byte
- for m := 0; m < msgs; m++ {
- if !recvMsg(c, buf[:]) || !sendMsg(c, buf[:]) {
- break
- }
- }
- }(c)
- }
- }()
- clientSem := make(chan bool, numConcurrent)
- for i := 0; i < conns; i++ {
- clientSem <- true
- // Client connection.
- go func() {
- defer func() {
- <-clientSem
- }()
- c, err := Dial("tcp", ln.Addr().String())
- if err != nil {
- b.Logf("Dial failed: %v", err)
- return
- }
- defer c.Close()
- if timeout {
- c.SetDeadline(time.Now().Add(time.Hour)) // Not intended to fire.
- }
- var buf [msgLen]byte
- for m := 0; m < msgs; m++ {
- if !sendMsg(c, buf[:]) || !recvMsg(c, buf[:]) {
- break
- }
- }
- }()
- }
- for i := 0; i < numConcurrent; i++ {
- clientSem <- true
- serverSem <- true
- }
-}
-
-func BenchmarkTCP4ConcurrentReadWrite(b *testing.B) {
- benchmarkTCPConcurrentReadWrite(b, "127.0.0.1:0")
-}
-
-func BenchmarkTCP6ConcurrentReadWrite(b *testing.B) {
- if !supportsIPv6 {
- b.Skip("ipv6 is not supported")
- }
- benchmarkTCPConcurrentReadWrite(b, "[::1]:0")
-}
-
-func benchmarkTCPConcurrentReadWrite(b *testing.B, laddr string) {
- // The benchmark creates GOMAXPROCS client/server pairs.
- // Each pair creates 4 goroutines: client reader/writer and server reader/writer.
- // The benchmark stresses concurrent reading and writing to the same connection.
- // Such pattern is used in net/http and net/rpc.
-
- b.StopTimer()
-
- P := runtime.GOMAXPROCS(0)
- N := b.N / P
- W := 1000
-
- // Setup P client/server connections.
- clients := make([]Conn, P)
- servers := make([]Conn, P)
- ln, err := Listen("tcp", laddr)
- if err != nil {
- b.Fatalf("Listen failed: %v", err)
- }
- defer ln.Close()
- done := make(chan bool)
- go func() {
- for p := 0; p < P; p++ {
- s, err := ln.Accept()
- if err != nil {
- b.Errorf("Accept failed: %v", err)
- return
- }
- servers[p] = s
- }
- done <- true
- }()
- for p := 0; p < P; p++ {
- c, err := Dial("tcp", ln.Addr().String())
- if err != nil {
- b.Fatalf("Dial failed: %v", err)
- }
- clients[p] = c
- }
- <-done
-
- b.StartTimer()
-
- var wg sync.WaitGroup
- wg.Add(4 * P)
- for p := 0; p < P; p++ {
- // Client writer.
- go func(c Conn) {
- defer wg.Done()
- var buf [1]byte
- for i := 0; i < N; i++ {
- v := byte(i)
- for w := 0; w < W; w++ {
- v *= v
- }
- buf[0] = v
- _, err := c.Write(buf[:])
- if err != nil {
- b.Errorf("Write failed: %v", err)
- return
- }
- }
- }(clients[p])
-
- // Pipe between server reader and server writer.
- pipe := make(chan byte, 128)
-
- // Server reader.
- go func(s Conn) {
- defer wg.Done()
- var buf [1]byte
- for i := 0; i < N; i++ {
- _, err := s.Read(buf[:])
- if err != nil {
- b.Errorf("Read failed: %v", err)
- return
- }
- pipe <- buf[0]
- }
- }(servers[p])
-
- // Server writer.
- go func(s Conn) {
- defer wg.Done()
- var buf [1]byte
- for i := 0; i < N; i++ {
- v := <-pipe
- for w := 0; w < W; w++ {
- v *= v
- }
- buf[0] = v
- _, err := s.Write(buf[:])
- if err != nil {
- b.Errorf("Write failed: %v", err)
- return
- }
- }
- s.Close()
- }(servers[p])
-
- // Client reader.
- go func(c Conn) {
- defer wg.Done()
- var buf [1]byte
- for i := 0; i < N; i++ {
- _, err := c.Read(buf[:])
- if err != nil {
- b.Errorf("Read failed: %v", err)
- return
- }
- }
- c.Close()
- }(clients[p])
- }
- wg.Wait()
-}
-
-type resolveTCPAddrTest struct {
- net string
- litAddrOrName string
- addr *TCPAddr
- err error
-}
-
-var resolveTCPAddrTests = []resolveTCPAddrTest{
- {"tcp", "127.0.0.1:0", &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 0}, nil},
- {"tcp4", "127.0.0.1:65535", &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 65535}, nil},
-
- {"tcp", "[::1]:1", &TCPAddr{IP: ParseIP("::1"), Port: 1}, nil},
- {"tcp6", "[::1]:65534", &TCPAddr{IP: ParseIP("::1"), Port: 65534}, nil},
-
- {"tcp", "[::1%en0]:1", &TCPAddr{IP: ParseIP("::1"), Port: 1, Zone: "en0"}, nil},
- {"tcp6", "[::1%911]:2", &TCPAddr{IP: ParseIP("::1"), Port: 2, Zone: "911"}, nil},
-
- {"", "127.0.0.1:0", &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 0}, nil}, // Go 1.0 behavior
- {"", "[::1]:0", &TCPAddr{IP: ParseIP("::1"), Port: 0}, nil}, // Go 1.0 behavior
-
- {"tcp", ":12345", &TCPAddr{Port: 12345}, nil},
-
- {"http", "127.0.0.1:0", nil, UnknownNetworkError("http")},
-}
-
-func init() {
- if ifi := loopbackInterface(); ifi != nil {
- index := fmt.Sprintf("%v", ifi.Index)
- resolveTCPAddrTests = append(resolveTCPAddrTests, []resolveTCPAddrTest{
- {"tcp6", "[fe80::1%" + ifi.Name + "]:3", &TCPAddr{IP: ParseIP("fe80::1"), Port: 3, Zone: zoneToString(ifi.Index)}, nil},
- {"tcp6", "[fe80::1%" + index + "]:4", &TCPAddr{IP: ParseIP("fe80::1"), Port: 4, Zone: index}, nil},
- }...)
- }
- if ips, err := LookupIP("localhost"); err == nil && len(ips) > 1 && supportsIPv4 && supportsIPv6 {
- resolveTCPAddrTests = append(resolveTCPAddrTests, []resolveTCPAddrTest{
- {"tcp", "localhost:5", &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5}, nil},
- {"tcp4", "localhost:6", &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 6}, nil},
- {"tcp6", "localhost:7", &TCPAddr{IP: IPv6loopback, Port: 7}, nil},
- }...)
- }
-}
-
-func TestResolveTCPAddr(t *testing.T) {
- for _, tt := range resolveTCPAddrTests {
- addr, err := ResolveTCPAddr(tt.net, tt.litAddrOrName)
- if err != tt.err {
- t.Fatalf("ResolveTCPAddr(%q, %q) failed: %v", tt.net, tt.litAddrOrName, err)
- }
- if !reflect.DeepEqual(addr, tt.addr) {
- t.Fatalf("ResolveTCPAddr(%q, %q) = %#v, want %#v", tt.net, tt.litAddrOrName, addr, tt.addr)
- }
- if err == nil {
- str := addr.String()
- addr1, err := ResolveTCPAddr(tt.net, str)
- if err != nil {
- t.Fatalf("ResolveTCPAddr(%q, %q) [from %q]: %v", tt.net, str, tt.litAddrOrName, err)
- }
- if !reflect.DeepEqual(addr1, addr) {
- t.Fatalf("ResolveTCPAddr(%q, %q) [from %q] = %#v, want %#v", tt.net, str, tt.litAddrOrName, addr1, addr)
- }
- }
- }
-}
-
-var tcpListenerNameTests = []struct {
- net string
- laddr *TCPAddr
-}{
- {"tcp4", &TCPAddr{IP: IPv4(127, 0, 0, 1)}},
- {"tcp4", &TCPAddr{}},
- {"tcp4", nil},
-}
-
-func TestTCPListenerName(t *testing.T) {
- if testing.Short() || !*testExternal {
- t.Skip("skipping test to avoid external network")
- }
-
- for _, tt := range tcpListenerNameTests {
- ln, err := ListenTCP(tt.net, tt.laddr)
- if err != nil {
- t.Fatalf("ListenTCP failed: %v", err)
- }
- defer ln.Close()
- la := ln.Addr()
- if a, ok := la.(*TCPAddr); !ok || a.Port == 0 {
- t.Fatalf("got %v; expected a proper address with non-zero port number", la)
- }
- }
-}
-
-func TestIPv6LinkLocalUnicastTCP(t *testing.T) {
- if testing.Short() || !*testExternal {
- t.Skip("skipping test to avoid external network")
- }
- if !supportsIPv6 {
- t.Skip("ipv6 is not supported")
- }
- ifi := loopbackInterface()
- if ifi == nil {
- t.Skip("loopback interface not found")
- }
- laddr := ipv6LinkLocalUnicastAddr(ifi)
- if laddr == "" {
- t.Skip("ipv6 unicast address on loopback not found")
- }
-
- type test struct {
- net, addr string
- nameLookup bool
- }
- var tests = []test{
- {"tcp", "[" + laddr + "%" + ifi.Name + "]:0", false},
- {"tcp6", "[" + laddr + "%" + ifi.Name + "]:0", false},
- }
- switch runtime.GOOS {
- case "darwin", "freebsd", "openbsd", "netbsd":
- tests = append(tests, []test{
- {"tcp", "[localhost%" + ifi.Name + "]:0", true},
- {"tcp6", "[localhost%" + ifi.Name + "]:0", true},
- }...)
- case "linux":
- tests = append(tests, []test{
- {"tcp", "[ip6-localhost%" + ifi.Name + "]:0", true},
- {"tcp6", "[ip6-localhost%" + ifi.Name + "]:0", true},
- }...)
- }
- for _, tt := range tests {
- ln, err := Listen(tt.net, tt.addr)
- if err != nil {
- // It might return "LookupHost returned no
- // suitable address" error on some platforms.
- t.Logf("Listen failed: %v", err)
- continue
- }
- defer ln.Close()
- if la, ok := ln.Addr().(*TCPAddr); !ok || !tt.nameLookup && la.Zone == "" {
- t.Fatalf("got %v; expected a proper address with zone identifier", la)
- }
-
- done := make(chan int)
- go transponder(t, ln, done)
-
- c, err := Dial(tt.net, ln.Addr().String())
- if err != nil {
- t.Fatalf("Dial failed: %v", err)
- }
- defer c.Close()
- if la, ok := c.LocalAddr().(*TCPAddr); !ok || !tt.nameLookup && la.Zone == "" {
- t.Fatalf("got %v; expected a proper address with zone identifier", la)
- }
- if ra, ok := c.RemoteAddr().(*TCPAddr); !ok || !tt.nameLookup && ra.Zone == "" {
- t.Fatalf("got %v; expected a proper address with zone identifier", ra)
- }
-
- if _, err := c.Write([]byte("TCP OVER IPV6 LINKLOCAL TEST")); err != nil {
- t.Fatalf("Conn.Write failed: %v", err)
- }
- b := make([]byte, 32)
- if _, err := c.Read(b); err != nil {
- t.Fatalf("Conn.Read failed: %v", err)
- }
-
- <-done
- }
-}
-
-func TestTCPConcurrentAccept(t *testing.T) {
- defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(4))
- ln, err := Listen("tcp", "127.0.0.1:0")
- if err != nil {
- t.Fatalf("Listen failed: %v", err)
- }
- const N = 10
- var wg sync.WaitGroup
- wg.Add(N)
- for i := 0; i < N; i++ {
- go func() {
- for {
- c, err := ln.Accept()
- if err != nil {
- break
- }
- c.Close()
- }
- wg.Done()
- }()
- }
- attempts := 10 * N
- fails := 0
- d := &Dialer{Timeout: 200 * time.Millisecond}
- for i := 0; i < attempts; i++ {
- c, err := d.Dial("tcp", ln.Addr().String())
- if err != nil {
- fails++
- } else {
- c.Close()
- }
- }
- ln.Close()
- wg.Wait()
- if fails > attempts/9 { // see issues 7400 and 7541
- t.Fatalf("too many Dial failed: %v", fails)
- }
- if fails > 0 {
- t.Logf("# of failed Dials: %v", fails)
- }
-}
-
-func TestTCPReadWriteMallocs(t *testing.T) {
- if testing.Short() {
- t.Skip("skipping malloc count in short mode")
- }
- ln, err := Listen("tcp", "127.0.0.1:0")
- if err != nil {
- t.Fatalf("Listen failed: %v", err)
- }
- defer ln.Close()
- var server Conn
- errc := make(chan error)
- go func() {
- var err error
- server, err = ln.Accept()
- errc <- err
- }()
- client, err := Dial("tcp", ln.Addr().String())
- if err != nil {
- t.Fatalf("Dial failed: %v", err)
- }
- if err := <-errc; err != nil {
- t.Fatalf("Accept failed: %v", err)
- }
- defer server.Close()
- var buf [128]byte
- mallocs := testing.AllocsPerRun(1000, func() {
- _, err := server.Write(buf[:])
- if err != nil {
- t.Fatalf("Write failed: %v", err)
- }
- _, err = io.ReadFull(client, buf[:])
- if err != nil {
- t.Fatalf("Read failed: %v", err)
- }
- })
- if mallocs > 0 {
- t.Fatalf("Got %v allocs, want 0", mallocs)
- }
-}
-
-func TestTCPStress(t *testing.T) {
- const conns = 2
- const msgLen = 512
- msgs := int(1e4)
- if testing.Short() {
- msgs = 1e2
- }
-
- sendMsg := func(c Conn, buf []byte) bool {
- n, err := c.Write(buf)
- if n != len(buf) || err != nil {
- t.Logf("Write failed: %v", err)
- return false
- }
- return true
- }
- recvMsg := func(c Conn, buf []byte) bool {
- for read := 0; read != len(buf); {
- n, err := c.Read(buf)
- read += n
- if err != nil {
- t.Logf("Read failed: %v", err)
- return false
- }
- }
- return true
- }
-
- ln, err := Listen("tcp", "127.0.0.1:0")
- if err != nil {
- t.Fatalf("Listen failed: %v", err)
- }
- defer ln.Close()
- // Acceptor.
- go func() {
- for {
- c, err := ln.Accept()
- if err != nil {
- break
- }
- // Server connection.
- go func(c Conn) {
- defer c.Close()
- var buf [msgLen]byte
- for m := 0; m < msgs; m++ {
- if !recvMsg(c, buf[:]) || !sendMsg(c, buf[:]) {
- break
- }
- }
- }(c)
- }
- }()
- done := make(chan bool)
- for i := 0; i < conns; i++ {
- // Client connection.
- go func() {
- defer func() {
- done <- true
- }()
- c, err := Dial("tcp", ln.Addr().String())
- if err != nil {
- t.Logf("Dial failed: %v", err)
- return
- }
- defer c.Close()
- var buf [msgLen]byte
- for m := 0; m < msgs; m++ {
- if !sendMsg(c, buf[:]) || !recvMsg(c, buf[:]) {
- break
- }
- }
- }()
- }
- for i := 0; i < conns; i++ {
- <-done
- }
-}
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-29 01:42:43 +0000