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-rw-r--r--tools/testing/selftests/bpf/prog_tests/cgroup_storage.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_storage.c b/tools/testing/selftests/bpf/prog_tests/cgroup_storage.c
index cf395715ced4..5451a43b3563 100644
--- a/tools/testing/selftests/bpf/prog_tests/cgroup_storage.c
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_storage.c
@@ -86,6 +86,11 @@ void test_cgroup_storage(void)
err = SYS_NOFAIL(PING_CMD);
ASSERT_OK(err, "sixth ping");
+ err = bpf_map__get_next_key(skel->maps.cgroup_storage, &key, &key,
+ sizeof(key));
+ ASSERT_ERR(err, "bpf_map__get_next_key should fail");
+ ASSERT_EQ(errno, ENOENT, "no second key");
+
cleanup_progs:
cgroup_storage__destroy(skel);
cleanup_network: