net: don't run TestLookupDotsWithLocalSource in short mode

Do run it on the builders, though.

Fixes #15881.

Change-Id: Ie42204d553cb18547ffd6441afc261717bbd9205
Reviewed-on: https://go-review.googlesource.com/24111
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Mikio Hara <mikioh.mikioh@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>

diff --git a/src/net/lookup_test.go b/src/net/lookup_test.go
index e22d1fbf79b42f1f2d8518b5a3314548770fe0ec..b3aeb85afbc1fa22a42717695def94d0b4c9e150 100644 (file)
--- a/src/net/lookup_test.go
+++ b/src/net/lookup_test.go
@@ -453,6 +453,10 @@ func TestLookupDotsWithLocalSource(t *testing.T) {
                t.Skip("IPv4 is required")
        }
 
+       if testenv.Builder() == "" {
+               testenv.MustHaveExternalNetwork(t)
+       }
+
        for i, fn := range []func() func(){forceGoDNS, forceCgoDNS} {
                fixup := fn()
                if fixup == nil {