tests: add a test case for double-flush bug in pipapo

Test for
'netfilter: nft_set_pipapo: skip inactive elements during set walk'.

Reported-by: Xingyuan Mo <hdthky0@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>

1 files changed, 9 insertions, 0 deletions

diff --git a/tests/shell/testcases/maps/dumps/pipapo_double_flush.nft b/tests/shell/testcases/maps/dumps/pipapo_double_flush.nft
new file mode 100644
index 00000000..cca569ea
--- /dev/null
+++ b/tests/shell/testcases/maps/dumps/pipapo_double_flush.nft
@@ -0,0 +1,9 @@
+table inet t {
+	map m {
+		type ipv4_addr . ipv4_addr : verdict
+		flags interval
+	}
+
+	chain c {
+	}
+}