libgo: Update to weekly.2012-01-20.

From-SVN: r183540

1 files changed, 21 insertions, 9 deletions

diff --git a/libgo/go/net/unicast_test.go b/libgo/go/net/unicast_test.go
index 6ed6f59cdd6..297276d3a7f 100644
--- a/libgo/go/net/unicast_test.go
+++ b/libgo/go/net/unicast_test.go
@@ -5,6 +5,7 @@
 package net
 
 import (
+	"io"
 	"runtime"
 	"testing"
 )
@@ -15,10 +16,12 @@ var unicastTests = []struct {
 	ipv6   bool
 	packet bool
 }{
-	{"tcp4", "127.0.0.1:0", false, false},
-	{"tcp6", "[::1]:0", true, false},
-	{"udp4", "127.0.0.1:0", false, true},
-	{"udp6", "[::1]:0", true, true},
+	{net: "tcp4", laddr: "127.0.0.1:0"},
+	{net: "tcp4", laddr: "previous"},
+	{net: "tcp6", laddr: "[::1]:0", ipv6: true},
+	{net: "tcp6", laddr: "previous", ipv6: true},
+	{net: "udp4", laddr: "127.0.0.1:0", packet: true},
+	{net: "udp6", laddr: "[::1]:0", ipv6: true, packet: true},
 }
 
 func TestUnicastTCPAndUDP(t *testing.T) {
@@ -26,24 +29,32 @@ func TestUnicastTCPAndUDP(t *testing.T) {
 		return
 	}
 
+	prevladdr := ""
 	for _, tt := range unicastTests {
 		if tt.ipv6 && !supportsIPv6 {
 			continue
 		}
-		var fd *netFD
+		var (
+			fd     *netFD
+			closer io.Closer
+		)
 		if !tt.packet {
-			c, err := Listen(tt.net, tt.laddr)
+			if tt.laddr == "previous" {
+				tt.laddr = prevladdr
+			}
+			l, err := Listen(tt.net, tt.laddr)
 			if err != nil {
 				t.Fatalf("Listen failed: %v", err)
 			}
-			defer c.Close()
-			fd = c.(*TCPListener).fd
+			prevladdr = l.Addr().String()
+			closer = l
+			fd = l.(*TCPListener).fd
 		} else {
 			c, err := ListenPacket(tt.net, tt.laddr)
 			if err != nil {
 				t.Fatalf("ListenPacket failed: %v", err)
 			}
-			defer c.Close()
+			closer = c
 			fd = c.(*UDPConn).fd
 		}
 		if !tt.ipv6 {
@@ -51,6 +62,7 @@ func TestUnicastTCPAndUDP(t *testing.T) {
 		} else {
 			testIPv6UnicastSocketOptions(t, fd)
 		}
+		closer.Close()
 	}
 }