Cellular Network Infrastructure » cni-legacy » OpenBSC » OsmoNITB

In the course of #1592, a quite comprehensive test suite is being developed.
This will be part of the code that is merged to master when #1592 is done.

So far test verifies expected behavior for successful cases,
pending are more tests for rejection at various stages,
as well as timeout behavior.

Development of this MSC+VLR end-to-end test is ongoing on the neels/vlr branch of openbsc.git.
Recently added/adding testing of UMTS milenage authentication.
(Failure/timeout tests are still to-be-done.)

The tests have been split up, from one monolithic test program (subscr_conn_tests.c)
to now several tests sharing common code (msc_vlr/msc_vlr_test_*.c)

UMTS authentication testing is complete on the VLR branch in msc_vlr_test_umts_authen.c,
as well as testing of UMTS authentication over pre-R99 (gsm_milenage()) in msc_vlr_test_gsm_authen.c.

Started failure testing: msc_vlr_test_hlr_reject.c tests scenarios where the HLR rejects
authentication info and LU. Insert Data failure still to be done.

(still on vlr branch)

Added first couple of rejection as well as timeout tests,
at first for HLR rejecting requests / not sending any replies,
and started MS timeout tests (when MS sends no replies).

tests development is ongoing, various timeout / rejection tests are still to be added.
Resulting from the timeout tests is the VLR timeout handling "discussion" at https://osmocom.org/issues/1592#note-67

added timeout tests where the MS fails to send messages once authenticity is established (in msc_vlr_test_ms_timeout.c). This went along with implementation of the conn_fsm COMMUNICATING state.

tests will always be an ongoing development. Let's close this issue and open more specific issues like #1976.