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-rw-r--r--src/net/server_test.go461
1 files changed, 461 insertions, 0 deletions
diff --git a/src/net/server_test.go b/src/net/server_test.go
new file mode 100644
index 000000000..6a2bb9243
--- /dev/null
+++ b/src/net/server_test.go
@@ -0,0 +1,461 @@
+// 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.
+
+package net
+
+import (
+ "flag"
+ "io"
+ "os"
+ "runtime"
+ "testing"
+ "time"
+)
+
+func skipServerTest(net, unixsotype, addr string, ipv6, ipv4map, linuxOnly bool) bool {
+ switch runtime.GOOS {
+ case "linux":
+ case "nacl", "plan9", "windows":
+ // "unix" sockets are not supported on Windows and Plan 9.
+ if net == unixsotype {
+ return true
+ }
+ default:
+ if net == unixsotype && linuxOnly {
+ return true
+ }
+ }
+ switch addr {
+ case "", "0.0.0.0", "[::ffff:0.0.0.0]", "[::]":
+ if testing.Short() || !*testExternal {
+ return true
+ }
+ }
+ if ipv6 && !supportsIPv6 {
+ return true
+ }
+ if ipv4map && !supportsIPv4map {
+ return true
+ }
+ return false
+}
+
+var streamConnServerTests = []struct {
+ snet string // server side
+ saddr string
+ cnet string // client side
+ caddr string
+ ipv6 bool // test with underlying AF_INET6 socket
+ ipv4map bool // test with IPv6 IPv4-mapping functionality
+ empty bool // test with empty data
+ linuxOnly bool // test with abstract unix domain socket, a Linux-ism
+}{
+ {snet: "tcp", saddr: "", cnet: "tcp", caddr: "127.0.0.1"},
+ {snet: "tcp", saddr: "0.0.0.0", cnet: "tcp", caddr: "127.0.0.1"},
+ {snet: "tcp", saddr: "[::ffff:0.0.0.0]", cnet: "tcp", caddr: "127.0.0.1"},
+ {snet: "tcp", saddr: "[::]", cnet: "tcp", caddr: "[::1]", ipv6: true},
+
+ {snet: "tcp", saddr: "", cnet: "tcp", caddr: "[::1]", ipv4map: true},
+ {snet: "tcp", saddr: "0.0.0.0", cnet: "tcp", caddr: "[::1]", ipv4map: true},
+ {snet: "tcp", saddr: "[::ffff:0.0.0.0]", cnet: "tcp", caddr: "[::1]", ipv4map: true},
+ {snet: "tcp", saddr: "[::]", cnet: "tcp", caddr: "127.0.0.1", ipv4map: true},
+
+ {snet: "tcp", saddr: "", cnet: "tcp4", caddr: "127.0.0.1"},
+ {snet: "tcp", saddr: "0.0.0.0", cnet: "tcp4", caddr: "127.0.0.1"},
+ {snet: "tcp", saddr: "[::ffff:0.0.0.0]", cnet: "tcp4", caddr: "127.0.0.1"},
+ {snet: "tcp", saddr: "[::]", cnet: "tcp6", caddr: "[::1]", ipv6: true},
+
+ {snet: "tcp", saddr: "", cnet: "tcp6", caddr: "[::1]", ipv4map: true},
+ {snet: "tcp", saddr: "0.0.0.0", cnet: "tcp6", caddr: "[::1]", ipv4map: true},
+ {snet: "tcp", saddr: "[::ffff:0.0.0.0]", cnet: "tcp6", caddr: "[::1]", ipv4map: true},
+ {snet: "tcp", saddr: "[::]", cnet: "tcp4", caddr: "127.0.0.1", ipv4map: true},
+
+ {snet: "tcp", saddr: "127.0.0.1", cnet: "tcp", caddr: "127.0.0.1"},
+ {snet: "tcp", saddr: "[::ffff:127.0.0.1]", cnet: "tcp", caddr: "127.0.0.1"},
+ {snet: "tcp", saddr: "[::1]", cnet: "tcp", caddr: "[::1]", ipv6: true},
+
+ {snet: "tcp4", saddr: "", cnet: "tcp4", caddr: "127.0.0.1"},
+ {snet: "tcp4", saddr: "0.0.0.0", cnet: "tcp4", caddr: "127.0.0.1"},
+ {snet: "tcp4", saddr: "[::ffff:0.0.0.0]", cnet: "tcp4", caddr: "127.0.0.1"},
+
+ {snet: "tcp4", saddr: "127.0.0.1", cnet: "tcp4", caddr: "127.0.0.1"},
+
+ {snet: "tcp6", saddr: "", cnet: "tcp6", caddr: "[::1]", ipv6: true},
+ {snet: "tcp6", saddr: "[::]", cnet: "tcp6", caddr: "[::1]", ipv6: true},
+
+ {snet: "tcp6", saddr: "[::1]", cnet: "tcp6", caddr: "[::1]", ipv6: true},
+
+ {snet: "unix", saddr: testUnixAddr(), cnet: "unix", caddr: testUnixAddr()},
+ {snet: "unix", saddr: "@gotest2/net", cnet: "unix", caddr: "@gotest2/net.local", linuxOnly: true},
+}
+
+func TestStreamConnServer(t *testing.T) {
+ for _, tt := range streamConnServerTests {
+ if skipServerTest(tt.snet, "unix", tt.saddr, tt.ipv6, tt.ipv4map, tt.linuxOnly) {
+ continue
+ }
+
+ listening := make(chan string)
+ done := make(chan int)
+ switch tt.snet {
+ case "tcp", "tcp4", "tcp6":
+ tt.saddr += ":0"
+ case "unix":
+ os.Remove(tt.saddr)
+ os.Remove(tt.caddr)
+ }
+
+ go runStreamConnServer(t, tt.snet, tt.saddr, listening, done)
+ taddr := <-listening // wait for server to start
+
+ switch tt.cnet {
+ case "tcp", "tcp4", "tcp6":
+ _, port, err := SplitHostPort(taddr)
+ if err != nil {
+ t.Fatalf("SplitHostPort(%q) failed: %v", taddr, err)
+ }
+ taddr = tt.caddr + ":" + port
+ }
+
+ runStreamConnClient(t, tt.cnet, taddr, tt.empty)
+ <-done // make sure server stopped
+
+ switch tt.snet {
+ case "unix":
+ os.Remove(tt.saddr)
+ os.Remove(tt.caddr)
+ }
+ }
+}
+
+var seqpacketConnServerTests = []struct {
+ net string
+ saddr string // server address
+ caddr string // client address
+ empty bool // test with empty data
+ linuxOnly bool // test with abstract unix domain socket, a Linux-ism
+}{
+ {net: "unixpacket", saddr: testUnixAddr(), caddr: testUnixAddr()},
+ {net: "unixpacket", saddr: "@gotest4/net", caddr: "@gotest4/net.local", linuxOnly: true},
+}
+
+func TestSeqpacketConnServer(t *testing.T) {
+ switch runtime.GOOS {
+ case "darwin", "nacl", "openbsd", "plan9", "windows":
+ fallthrough
+ case "freebsd": // FreeBSD 8 doesn't support unixpacket
+ t.Skipf("skipping test on %q", runtime.GOOS)
+ }
+
+ for _, tt := range seqpacketConnServerTests {
+ if runtime.GOOS != "linux" && tt.linuxOnly {
+ continue
+ }
+ listening := make(chan string)
+ done := make(chan int)
+ switch tt.net {
+ case "unixpacket":
+ os.Remove(tt.saddr)
+ os.Remove(tt.caddr)
+ }
+
+ go runStreamConnServer(t, tt.net, tt.saddr, listening, done)
+ taddr := <-listening // wait for server to start
+
+ runStreamConnClient(t, tt.net, taddr, tt.empty)
+ <-done // make sure server stopped
+
+ switch tt.net {
+ case "unixpacket":
+ os.Remove(tt.saddr)
+ os.Remove(tt.caddr)
+ }
+ }
+}
+
+func runStreamConnServer(t *testing.T, net, laddr string, listening chan<- string, done chan<- int) {
+ defer close(done)
+ l, err := Listen(net, laddr)
+ if err != nil {
+ t.Errorf("Listen(%q, %q) failed: %v", net, laddr, err)
+ listening <- "<nil>"
+ return
+ }
+ defer l.Close()
+ listening <- l.Addr().String()
+
+ echo := func(rw io.ReadWriter, done chan<- int) {
+ buf := make([]byte, 1024)
+ for {
+ n, err := rw.Read(buf[0:])
+ if err != nil || n == 0 || string(buf[:n]) == "END" {
+ break
+ }
+ rw.Write(buf[0:n])
+ }
+ close(done)
+ }
+
+run:
+ for {
+ c, err := l.Accept()
+ if err != nil {
+ t.Logf("Accept failed: %v", err)
+ continue run
+ }
+ echodone := make(chan int)
+ go echo(c, echodone)
+ <-echodone // make sure echo stopped
+ c.Close()
+ break run
+ }
+}
+
+func runStreamConnClient(t *testing.T, net, taddr string, isEmpty bool) {
+ c, err := Dial(net, taddr)
+ if err != nil {
+ t.Fatalf("Dial(%q, %q) failed: %v", net, taddr, err)
+ }
+ defer c.Close()
+ c.SetReadDeadline(time.Now().Add(1 * time.Second))
+
+ var wb []byte
+ if !isEmpty {
+ wb = []byte("StreamConnClient by Dial\n")
+ }
+ if n, err := c.Write(wb); err != nil || n != len(wb) {
+ t.Fatalf("Write failed: %v, %v; want %v, <nil>", n, err, len(wb))
+ }
+
+ rb := make([]byte, 1024)
+ if n, err := c.Read(rb[0:]); err != nil || n != len(wb) {
+ t.Fatalf("Read failed: %v, %v; want %v, <nil>", n, err, len(wb))
+ }
+
+ // Send explicit ending for unixpacket.
+ // Older Linux kernels do not stop reads on close.
+ switch net {
+ case "unixpacket":
+ c.Write([]byte("END"))
+ }
+}
+
+// Do not test empty datagrams by default.
+// It causes unexplained timeouts on some systems,
+// including Snow Leopard. I think that the kernel
+// doesn't quite expect them.
+var testDatagram = flag.Bool("datagram", false, "whether to test udp and unixgram")
+
+var datagramPacketConnServerTests = []struct {
+ snet string // server side
+ saddr string
+ cnet string // client side
+ caddr string
+ ipv6 bool // test with underlying AF_INET6 socket
+ ipv4map bool // test with IPv6 IPv4-mapping functionality
+ dial bool // test with Dial or DialUnix
+ empty bool // test with empty data
+ linuxOnly bool // test with abstract unix domain socket, a Linux-ism
+}{
+ {snet: "udp", saddr: "", cnet: "udp", caddr: "127.0.0.1"},
+ {snet: "udp", saddr: "0.0.0.0", cnet: "udp", caddr: "127.0.0.1"},
+ {snet: "udp", saddr: "[::ffff:0.0.0.0]", cnet: "udp", caddr: "127.0.0.1"},
+ {snet: "udp", saddr: "[::]", cnet: "udp", caddr: "[::1]", ipv6: true},
+
+ {snet: "udp", saddr: "", cnet: "udp", caddr: "[::1]", ipv4map: true},
+ {snet: "udp", saddr: "0.0.0.0", cnet: "udp", caddr: "[::1]", ipv4map: true},
+ {snet: "udp", saddr: "[::ffff:0.0.0.0]", cnet: "udp", caddr: "[::1]", ipv4map: true},
+ {snet: "udp", saddr: "[::]", cnet: "udp", caddr: "127.0.0.1", ipv4map: true},
+
+ {snet: "udp", saddr: "", cnet: "udp4", caddr: "127.0.0.1"},
+ {snet: "udp", saddr: "0.0.0.0", cnet: "udp4", caddr: "127.0.0.1"},
+ {snet: "udp", saddr: "[::ffff:0.0.0.0]", cnet: "udp4", caddr: "127.0.0.1"},
+ {snet: "udp", saddr: "[::]", cnet: "udp6", caddr: "[::1]", ipv6: true},
+
+ {snet: "udp", saddr: "", cnet: "udp6", caddr: "[::1]", ipv4map: true},
+ {snet: "udp", saddr: "0.0.0.0", cnet: "udp6", caddr: "[::1]", ipv4map: true},
+ {snet: "udp", saddr: "[::ffff:0.0.0.0]", cnet: "udp6", caddr: "[::1]", ipv4map: true},
+ {snet: "udp", saddr: "[::]", cnet: "udp4", caddr: "127.0.0.1", ipv4map: true},
+
+ {snet: "udp", saddr: "127.0.0.1", cnet: "udp", caddr: "127.0.0.1"},
+ {snet: "udp", saddr: "[::ffff:127.0.0.1]", cnet: "udp", caddr: "127.0.0.1"},
+ {snet: "udp", saddr: "[::1]", cnet: "udp", caddr: "[::1]", ipv6: true},
+
+ {snet: "udp4", saddr: "", cnet: "udp4", caddr: "127.0.0.1"},
+ {snet: "udp4", saddr: "0.0.0.0", cnet: "udp4", caddr: "127.0.0.1"},
+ {snet: "udp4", saddr: "[::ffff:0.0.0.0]", cnet: "udp4", caddr: "127.0.0.1"},
+
+ {snet: "udp4", saddr: "127.0.0.1", cnet: "udp4", caddr: "127.0.0.1"},
+
+ {snet: "udp6", saddr: "", cnet: "udp6", caddr: "[::1]", ipv6: true},
+ {snet: "udp6", saddr: "[::]", cnet: "udp6", caddr: "[::1]", ipv6: true},
+
+ {snet: "udp6", saddr: "[::1]", cnet: "udp6", caddr: "[::1]", ipv6: true},
+
+ {snet: "udp", saddr: "127.0.0.1", cnet: "udp", caddr: "127.0.0.1", dial: true},
+ {snet: "udp", saddr: "127.0.0.1", cnet: "udp", caddr: "127.0.0.1", empty: true},
+ {snet: "udp", saddr: "127.0.0.1", cnet: "udp", caddr: "127.0.0.1", dial: true, empty: true},
+
+ {snet: "udp", saddr: "[::1]", cnet: "udp", caddr: "[::1]", ipv6: true, dial: true},
+ {snet: "udp", saddr: "[::1]", cnet: "udp", caddr: "[::1]", ipv6: true, empty: true},
+ {snet: "udp", saddr: "[::1]", cnet: "udp", caddr: "[::1]", ipv6: true, dial: true, empty: true},
+
+ {snet: "unixgram", saddr: testUnixAddr(), cnet: "unixgram", caddr: testUnixAddr()},
+ {snet: "unixgram", saddr: testUnixAddr(), cnet: "unixgram", caddr: testUnixAddr(), dial: true},
+ {snet: "unixgram", saddr: testUnixAddr(), cnet: "unixgram", caddr: testUnixAddr(), empty: true},
+ {snet: "unixgram", saddr: testUnixAddr(), cnet: "unixgram", caddr: testUnixAddr(), dial: true, empty: true},
+
+ {snet: "unixgram", saddr: "@gotest6/net", cnet: "unixgram", caddr: "@gotest6/net.local", linuxOnly: true},
+}
+
+func TestDatagramPacketConnServer(t *testing.T) {
+ if !*testDatagram {
+ return
+ }
+
+ for _, tt := range datagramPacketConnServerTests {
+ if skipServerTest(tt.snet, "unixgram", tt.saddr, tt.ipv6, tt.ipv4map, tt.linuxOnly) {
+ continue
+ }
+
+ listening := make(chan string)
+ done := make(chan int)
+ switch tt.snet {
+ case "udp", "udp4", "udp6":
+ tt.saddr += ":0"
+ case "unixgram":
+ os.Remove(tt.saddr)
+ os.Remove(tt.caddr)
+ }
+
+ go runDatagramPacketConnServer(t, tt.snet, tt.saddr, listening, done)
+ taddr := <-listening // wait for server to start
+
+ switch tt.cnet {
+ case "udp", "udp4", "udp6":
+ _, port, err := SplitHostPort(taddr)
+ if err != nil {
+ t.Fatalf("SplitHostPort(%q) failed: %v", taddr, err)
+ }
+ taddr = tt.caddr + ":" + port
+ tt.caddr += ":0"
+ }
+ if tt.dial {
+ runDatagramConnClient(t, tt.cnet, tt.caddr, taddr, tt.empty)
+ } else {
+ runDatagramPacketConnClient(t, tt.cnet, tt.caddr, taddr, tt.empty)
+ }
+ <-done // tell server to stop
+ <-done // make sure server stopped
+
+ switch tt.snet {
+ case "unixgram":
+ os.Remove(tt.saddr)
+ os.Remove(tt.caddr)
+ }
+ }
+}
+
+func runDatagramPacketConnServer(t *testing.T, net, laddr string, listening chan<- string, done chan<- int) {
+ c, err := ListenPacket(net, laddr)
+ if err != nil {
+ t.Errorf("ListenPacket(%q, %q) failed: %v", net, laddr, err)
+ listening <- "<nil>"
+ done <- 1
+ return
+ }
+ defer c.Close()
+ listening <- c.LocalAddr().String()
+
+ buf := make([]byte, 1024)
+run:
+ for {
+ c.SetReadDeadline(time.Now().Add(10 * time.Millisecond))
+ n, ra, err := c.ReadFrom(buf[0:])
+ if nerr, ok := err.(Error); ok && nerr.Timeout() {
+ select {
+ case done <- 1:
+ break run
+ default:
+ continue run
+ }
+ }
+ if err != nil {
+ break run
+ }
+ if _, err = c.WriteTo(buf[0:n], ra); err != nil {
+ t.Errorf("WriteTo(%v) failed: %v", ra, err)
+ break run
+ }
+ }
+ done <- 1
+}
+
+func runDatagramConnClient(t *testing.T, net, laddr, taddr string, isEmpty bool) {
+ var c Conn
+ var err error
+ switch net {
+ case "udp", "udp4", "udp6":
+ c, err = Dial(net, taddr)
+ if err != nil {
+ t.Fatalf("Dial(%q, %q) failed: %v", net, taddr, err)
+ }
+ case "unixgram":
+ c, err = DialUnix(net, &UnixAddr{Name: laddr, Net: net}, &UnixAddr{Name: taddr, Net: net})
+ if err != nil {
+ t.Fatalf("DialUnix(%q, {%q, %q}) failed: %v", net, laddr, taddr, err)
+ }
+ }
+ defer c.Close()
+ c.SetReadDeadline(time.Now().Add(1 * time.Second))
+
+ var wb []byte
+ if !isEmpty {
+ wb = []byte("DatagramConnClient by Dial\n")
+ }
+ if n, err := c.Write(wb[0:]); err != nil || n != len(wb) {
+ t.Fatalf("Write failed: %v, %v; want %v, <nil>", n, err, len(wb))
+ }
+
+ rb := make([]byte, 1024)
+ if n, err := c.Read(rb[0:]); err != nil || n != len(wb) {
+ t.Fatalf("Read failed: %v, %v; want %v, <nil>", n, err, len(wb))
+ }
+}
+
+func runDatagramPacketConnClient(t *testing.T, net, laddr, taddr string, isEmpty bool) {
+ var ra Addr
+ var err error
+ switch net {
+ case "udp", "udp4", "udp6":
+ ra, err = ResolveUDPAddr(net, taddr)
+ if err != nil {
+ t.Fatalf("ResolveUDPAddr(%q, %q) failed: %v", net, taddr, err)
+ }
+ case "unixgram":
+ ra, err = ResolveUnixAddr(net, taddr)
+ if err != nil {
+ t.Fatalf("ResolveUxixAddr(%q, %q) failed: %v", net, taddr, err)
+ }
+ }
+ c, err := ListenPacket(net, laddr)
+ if err != nil {
+ t.Fatalf("ListenPacket(%q, %q) faild: %v", net, laddr, err)
+ }
+ defer c.Close()
+ c.SetReadDeadline(time.Now().Add(1 * time.Second))
+
+ var wb []byte
+ if !isEmpty {
+ wb = []byte("DatagramPacketConnClient by ListenPacket\n")
+ }
+ if n, err := c.WriteTo(wb[0:], ra); err != nil || n != len(wb) {
+ t.Fatalf("WriteTo(%v) failed: %v, %v; want %v, <nil>", ra, n, err, len(wb))
+ }
+
+ rb := make([]byte, 1024)
+ if n, _, err := c.ReadFrom(rb[0:]); err != nil || n != len(wb) {
+ t.Fatalf("ReadFrom failed: %v, %v; want %v, <nil>", n, err, len(wb))
+ }
+}
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