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-rw-r--r--tests/lapd/lapd_test.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/tests/lapd/lapd_test.c b/tests/lapd/lapd_test.c
index 8c6b0df2..c924dbf9 100644
--- a/tests/lapd/lapd_test.c
+++ b/tests/lapd/lapd_test.c
@@ -99,6 +99,16 @@ static struct msgb *create_mm_id_req(void)
return msg;
}
+static struct msgb *create_empty_msg(void)
+{
+ struct msgb *msg;
+
+ msg = msgb_from_array(NULL, 0);
+ ASSERT(msgb_l3len(msg) == 0);
+ rsl_rll_push_l3(msg, RSL_MT_DATA_REQ, 0, 0, 1);
+ return msg;
+}
+
static struct msgb *create_dummy_data_req(void)
{
struct msgb *msg;
@@ -284,6 +294,11 @@ static void test_lapdm_polling()
rc = lapdm_phsap_dequeue_prim(&bts_to_ms_channel.lapdm_dcch, &pp);
ASSERT(rc < 0);
+ /* check sending an empty L3 message fails */
+ rc = lapdm_rslms_recvmsg(create_empty_msg(), &bts_to_ms_channel);
+ ASSERT(rc == -1);
+ ASSERT(test_state.ms_read == 2);
+
/* clean up */
lapdm_channel_exit(&bts_to_ms_channel);
lapdm_channel_exit(&ms_to_bts_channel);