tests: shell: move device to different namespace

This actually triggers a UNREGISTER event, it is similar to existing
tests, but add this test to improve coverage for this scenario.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/tests/shell/testcases/chains/netdev_move_device b/tests/shell/testcases/chains/netdev_move_device
new file mode 100755 (executable)
index 0000000..762ca59
--- /dev/null
+++ b/tests/shell/testcases/chains/netdev_move_device
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+set -e
+
+rnd=$(mktemp -u XXXXXXXX)
+ns1="nft1-$rnd"
+
+cleanup() {
+       ip netns del "$ns1"
+       ip link del d0 &>/dev/null || :
+}
+trap 'cleanup' EXIT
+
+RULESET="table netdev x {
+       chain x {}
+       chain w {
+               ip daddr 8.7.6.0/24 counter
+       }
+       chain y {
+               type filter hook ingress device d0 priority 0;
+               ip saddr { 1.2.3.4, 2.3.4.5 } counter
+               ip daddr vmap { 5.4.3.0/24 : jump w, 8.9.0.0/24 : jump x }
+       }
+}"
+
+ip link add d0 type dummy
+$NFT -f - <<< $RULESET
+
+ip netns add $ns1
+# move device to $ns1 triggers UNREGISTER event
+ip link set d0 netns $ns1
+
+cleanup
+$NFT delete table netdev x
+
+# a simple test that also triggers UNREGISTER event
+ip netns add $ns1
+ip -netns $ns1 link add d0 type dummy
+ip netns exec $ns1 $NFT -f - <<< $RULESET