net: disable tests for functions not available on windows

R=r, Joe Poirier, rsc
CC=golang-dev
https://golang.org/cl/2123044

src/pkg/Makefile

@@ -190,7 +190,6 @@ endif
 ifeq ($(GOOS),windows)
 NOTEST+=exec         # no pipe
 NOTEST+=log          # no runtime.Caller
-NOTEST+=net          # no network
 NOTEST+=os           # many things unimplemented
 NOTEST+=os/signal    # no signals
 NOTEST+=path         # tree walking does not work

src/pkg/net/parse_test.go

@@ -8,9 +8,14 @@ import (
 	"bufio"
 	"os"
 	"testing"
+	"runtime"
 )
 
 func TestReadLine(t *testing.T) {
+	// /etc/services file does not exist on windows.
+	if runtime.GOOS == "windows" {
+		return
+	}
 	filename := "/etc/services" // a nice big file
 
 	fd, err := os.Open(filename, os.O_RDONLY, 0)

src/pkg/net/port_test.go

@@ -23,7 +23,6 @@ var porttests = []portTest{
 	portTest{"tcp", "chargen", 19, true},
 	portTest{"tcp", "ftp-data", 20, true},
 	portTest{"tcp", "ftp", 21, true},
-	portTest{"tcp", "ssh", 22, true},
 	portTest{"tcp", "telnet", 23, true},
 	portTest{"tcp", "smtp", 25, true},
 	portTest{"tcp", "time", 37, true},

src/pkg/net/server_test.go

@@ -11,6 +11,7 @@ import (
 	"strings"
 	"syscall"
 	"testing"
+	"runtime"
 )
 
 // Do not test empty datagrams by default.
@@ -108,6 +109,10 @@ func TestTCPServer(t *testing.T) {
 }
 
 func TestUnixServer(t *testing.T) {
+	// "unix" sockets are not supported on windows.
+	if runtime.GOOS == "windows" {
+		return
+	}
 	os.Remove("/tmp/gotest.net")
 	doTest(t, "unix", "/tmp/gotest.net", "/tmp/gotest.net")
 	os.Remove("/tmp/gotest.net")
@@ -177,6 +182,10 @@ func TestUDPServer(t *testing.T) {
 }
 
 func TestUnixDatagramServer(t *testing.T) {
+	// "unix" sockets are not supported on windows.
+	if runtime.GOOS == "windows" {
+		return
+	}
 	for _, isEmpty := range []bool{false} {
 		os.Remove("/tmp/gotest1.net")
 		os.Remove("/tmp/gotest1.net.local")

src/pkg/net/timeout_test.go

@@ -8,9 +8,14 @@ import (
 	"os"
 	"testing"
 	"time"
+	"runtime"
 )
 
 func testTimeout(t *testing.T, network, addr string, readFrom bool) {
+	// Timeouts are not implemented on windows.
+	if runtime.GOOS == "windows" {
+		return
+	}
 	fd, err := Dial(network, "", addr)
 	if err != nil {
 		t.Errorf("dial %s %s failed: %v", network, addr, err)

src/pkg/syscall/syscall_windows.go

@@ -442,6 +442,9 @@ func Utimes(path string, tv []Timeval) (errno int) {
 //sys	DnsQuery(name string, qtype uint16, options uint32, extra *byte, qrs **DNSRecord, pr *byte) (status uint32) = dnsapi.DnsQuery_W
 //sys	DnsRecordListFree(rl *DNSRecord, freetype uint32) = dnsapi.DnsRecordListFree
 
+// For testing: clients can set this flag to force
+// creation of IPv6 sockets to return EAFNOSUPPORT.
+var SocketDisableIPv6 bool
 
 type RawSockaddrInet4 struct {
 	Family uint16
@@ -525,6 +528,9 @@ func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, int) {
 }
 
 func Socket(domain, typ, proto int) (fd, errno int) {
+	if domain == AF_INET6 && SocketDisableIPv6 {
+		return -1, EAFNOSUPPORT
+	}
 	h, e := socket(int32(domain), int32(typ), int32(proto))
 	return int(h), int(e)
 }