net: fix Windows TestInterfaceHardwareAddrWithGetmac

TestInterfaceHardwareAddrWithGetmac was panicing when getmac returned
multiple network cards.

Change-Id: I6fefa5a4910bce805b4cd9c09f94bd56c9682b9e
Reviewed-on: https://go-review.googlesource.com/47190
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

diff --git a/src/net/net_windows_test.go b/src/net/net_windows_test.go
index e36ea113722469c62e9b31aa4980dcd3397595c4..04416129eb4d9768d19d1cba5897be6cc4550c44 100644 (file)
--- a/src/net/net_windows_test.go
+++ b/src/net/net_windows_test.go
@@ -592,7 +592,7 @@ func TestInterfaceHardwareAddrWithGetmac(t *testing.T) {
                addr = strings.Replace(addr, "-", ":", -1)
                cname := getValue("Connection Name")
                want[cname] = addr
-               group = nil
+               group = make(map[string]string)
        }
        lines := bytes.Split(out, []byte{'\r', '\n'})
        for _, line := range lines {