Add tests for find_multi_slots()

* make function public
* add tests

Change-Id: I4174703808335c19341cd5b5f4422496d958967f
diff --git a/src/gprs_rlcmac.h b/src/gprs_rlcmac.h
index aa773fc..64b6d6c 100644
--- a/src/gprs_rlcmac.h
+++ b/src/gprs_rlcmac.h
@@ -62,6 +62,9 @@
 	uint8_t block_payload;
 };
 
+/* TS allocation internal functions */
+int find_multi_slots(struct gprs_rlcmac_trx *trx, uint8_t mslot_class, uint8_t *ul_slots, uint8_t *dl_slots);
+
 int gprs_rlcmac_received_lost(struct gprs_rlcmac_dl_tbf *tbf, uint16_t received,
 	uint16_t lost);
 
diff --git a/src/gprs_rlcmac_ts_alloc.cpp b/src/gprs_rlcmac_ts_alloc.cpp
index 5e670d7..471b601 100644
--- a/src/gprs_rlcmac_ts_alloc.cpp
+++ b/src/gprs_rlcmac_ts_alloc.cpp
@@ -443,7 +443,7 @@
 	return 0;
 }
 
-static int find_multi_slots(struct gprs_rlcmac_trx *trx, uint8_t mslot_class, uint8_t *ul_slots, uint8_t *dl_slots)
+int find_multi_slots(struct gprs_rlcmac_trx *trx, uint8_t mslot_class, uint8_t *ul_slots, uint8_t *dl_slots)
 {
 	uint8_t Tx, Sum;	/* Maximum Number of Slots: RX, Tx, Sum Rx+Tx */
 	uint8_t Tta, Ttb, Tra, Trb;	/* Minimum Number of Slots */