move dependencies to vendor

vendor/github.com/vishvananda/netlink/netlink_test.go

@@ -0,0 +1,34 @@
+package netlink
+
+import (
+	"log"
+	"os"
+	"runtime"
+	"testing"
+
+	"github.com/vishvananda/netns"
+)
+
+type tearDownNetlinkTest func()
+
+func setUpNetlinkTest(t *testing.T) tearDownNetlinkTest {
+	if os.Getuid() != 0 {
+		msg := "Skipped test because it requires root privileges."
+		log.Printf(msg)
+		t.Skip(msg)
+	}
+
+	// new temporary namespace so we don't pollute the host
+	// lock thread since the namespace is thread local
+	runtime.LockOSThread()
+	var err error
+	ns, err := netns.New()
+	if err != nil {
+		t.Fatal("Failed to create newns", ns)
+	}
+
+	return func() {
+		ns.Close()
+		runtime.UnlockOSThread()
+	}
+}