Added function to generate vector of PDUs

lib/test/upper/pdcp_nr_test.cc

@@ -19,6 +19,7 @@
  *
  */
 #include "pdcp_nr_test.h"
+#include <numeric>
 
 // Encryption and Integrity Keys
 uint8_t k_int[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15,
@@ -424,13 +425,22 @@ int test_tx_all(srslte::byte_buffer_pool* pool, srslte::log* log)
  */
 int test_rx_all(srslte::byte_buffer_pool* pool, srslte::log* log)
 {
+   // Test SDUs
+   srslte::unique_byte_buffer_t tst_sdu1 = allocate_unique_buffer(*pool); // SDU 1 
+   tst_sdu1->append_bytes(sdu1, sizeof(sdu1));
+   srslte::unique_byte_buffer_t tst_sdu2 = allocate_unique_buffer(*pool); // SDU 2
+   tst_sdu2->append_bytes(sdu2, sizeof(sdu2));
 
   /*
    * RX Test 1: PDCP Entity with SN LEN = 12
    * Test in-sequence reception of 4097 packets.
    * This tests correct handling of HFN in the case of SN wraparound (SN LEN 12)
    */
-   TESTASSERT(test_rx_in_sequence(4096, normal_init_state, srslte::PDCP_SN_LEN_12, 4097, pool, log) == 0);
+   std::vector<uint32_t> test1_counts(2);                      // Test two packets
+   std::iota(test1_counts.begin(), test1_counts.end(), 4095);  // Starting at COUNT 4095
+   std::vector<srslte::unique_byte_buffer_t> test1_exp_pdus = gen_expected_pdus_vector(tst_sdu1, test1_counts, srslte::PDCP_SN_LEN_12, sec_cfg, pool, log);
+   pdcp_initial_state test1_init_state = {.tx_next = 4095, .rx_next = 4095, .rx_deliv = 4095, .rx_reord = 0};
+   TESTASSERT(test_rx_in_sequence(4096, test1_init_state, srslte::PDCP_SN_LEN_12, 2, pool, log) == 0);
 
    /*
     * RX Test 2: PDCP Entity with SN LEN = 12

lib/test/upper/pdcp_nr_test.h

@@ -174,13 +174,20 @@ public:
 };
 
 // Helper function to generate PDUs
-void gen_expected_pdu(srslte::unique_byte_buffer_t in_sdu,
+srslte::unique_byte_buffer_t gen_expected_pdu(const srslte::unique_byte_buffer_t& in_sdu,
                                               uint32_t                            count,
-                      srslte::pdcp_config_t        cfg,
+                                              uint8_t                             pdcp_sn_len,
                                               pdcp_security_cfg                   sec_cfg,
-                      srslte::log*                 log,
-                      srslte::byte_buffer_pool*    pool)
+                                              srslte::byte_buffer_pool*           pool,
+                                              srslte::log*                        log)
 {
+  srslte::pdcp_config_t cfg = {1,
+                               srslte::PDCP_RB_IS_DRB,
+                               srslte::SECURITY_DIRECTION_DOWNLINK,
+                               srslte::SECURITY_DIRECTION_UPLINK,
+                               pdcp_sn_len,
+                               srslte::pdcp_t_reordering_t::ms500};
+
   pdcp_nr_test_helper     pdcp_hlp(cfg, sec_cfg, log);
   srslte::pdcp_entity_nr* pdcp = &pdcp_hlp.pdcp;
   rlc_dummy*              rlc  = &pdcp_hlp.rlc;
@@ -189,25 +196,28 @@ void gen_expected_pdu(srslte::unique_byte_buffer_t in_sdu,
   init_state.tx_next = count;
   pdcp_hlp.set_pdcp_initial_state(init_state);
 
-  // for (uint32_t i = 0; i <= count; ++i) {
   srslte::unique_byte_buffer_t sdu = srslte::allocate_unique_buffer(*pool);
   *sdu                             = *in_sdu;
   pdcp->write_sdu(std::move(sdu), true);
-  //}
   srslte::unique_byte_buffer_t out_pdu = srslte::allocate_unique_buffer(*pool);
   rlc->get_last_sdu(out_pdu);
-  print_packet_array(out_pdu);
+
+  return std::move(out_pdu);
 }
 
 // Helper function to generate vector of PDU from a vector of TX_NEXTs for generating expected pdus
-void gen_expected_pdus_vector(const std::vector<uint32_t>&               tx_nexts,
-                              std::vector<srslte::unique_byte_buffer_t>& pdu_vec,
-                              srslte::byte_buffer_pool*                  pool)
+std::vector<srslte::unique_byte_buffer_t> gen_expected_pdus_vector(const srslte::unique_byte_buffer_t& in_sdu,
+                                                                   const std::vector<uint32_t>&        tx_nexts,
+                                                                   uint8_t                             pdcp_sn_len,
+                                                                   pdcp_security_cfg                   sec_cfg,
+                                                                   srslte::byte_buffer_pool*           pool,
+                                                                   srslte::log*                        log)
 {
+  std::vector<srslte::unique_byte_buffer_t> pdu_vec;
   for (uint32_t tx_next : tx_nexts) {
-    srslte::unique_byte_byffer_t pdu = srslte::allocate_byte_buffer(*pool);
-    gen_expected_pdu(tx_next, pdu);
-    pdu_vec.push_back(pdu);
+    srslte::unique_byte_buffer_t pdu = gen_expected_pdu(in_sdu, tx_next, pdcp_sn_len, sec_cfg, pool, log);
+    pdu_vec.push_back(std::move(pdu));
   }
+  return pdu_vec;
 }
 #endif // SRSLTE_PDCP_NR_TEST_H