tests: lib: Add lte_lc_pdn tests

Add tests for the PDN handling recently added to lte_lc.
The tests are copied from PDN library tests, and adapted to
the new type and function names.
Some changes were needed due to events now going through the
lte_lc events system and not direct callbacks.

Signed-off-by: Jan Tore Guggedal <[email protected]>

Author: jtguggedal

CODEOWNERS

@@ -885,6 +885,7 @@
 /tests/lib/hw_id/                         @nrfconnect/ncs-cia
 /tests/lib/location/                      @nrfconnect/ncs-modem-tre
 /tests/lib/lte_lc_api/                    @nrfconnect/ncs-modem-tre
+/tests/lib/lte_lc_pdn/                    @nrfconnect/ncs-modem-tre @nrfconnect/ncs-cia
 /tests/lib/modem_battery/                 @nrfconnect/ncs-modem
 /tests/lib/modem_info/                    @nrfconnect/ncs-cia
 /tests/lib/modem_jwt/                     @nrfconnect/ncs-iot-oulu

include/modem/lte_lc.h

@@ -2493,7 +2493,7 @@ const char *lte_lc_pdn_esm_strerror(int reason);
  */
 int lte_lc_cellular_profile_configure(struct lte_lc_cellular_profile *profile);
 
-#if CONFIG_LTE_LC_PDN_ESM_STRERROR
+#if defined(CONFIG_LTE_LC_PDN_ESM_STRERROR)
 
 /**
  * Retrieve a statically allocated textual description for a given ESM error reason.

tests/lib/lte_lc_pdn/CMakeLists.txt

@@ -9,42 +9,44 @@ cmake_minimum_required(VERSION 3.20.0)
 find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
 project(lte_lc_pdn)
 
-FILE(GLOB app_sources src/*.c)
-target_sources(app PRIVATE ${app_sources})
-target_sources(app PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/stubs/lte_lc_stubs.c)
+target_sources(app PRIVATE
+  src/main.c
+  ${CMAKE_CURRENT_SOURCE_DIR}/stubs/lte_lc_stubs.c
+)
 
 test_runner_generate(src/main.c)
 
-target_sources(app
-  PRIVATE
+target_sources(app PRIVATE
   ${ZEPHYR_NRF_MODULE_DIR}/lib/lte_link_control/lte_lc.c
   ${ZEPHYR_NRF_MODULE_DIR}/lib/lte_link_control/modules/pdn.c
   ${ZEPHYR_NRF_MODULE_DIR}/lib/lte_link_control/modules/esm.c
   ${ZEPHYR_NRF_MODULE_DIR}/lib/lte_link_control/modules/cellular_profile.c
   ${ZEPHYR_NRF_MODULE_DIR}/lib/lte_link_control/common/event_handler_list.c
 )
 
-zephyr_include_directories(${CMAKE_CURRENT_SOURCE_DIR}/stubs)
-zephyr_include_directories(${ZEPHYR_NRFXLIB_MODULE_DIR}/nrf_modem/include/)
-zephyr_include_directories(${ZEPHYR_NRF_MODULE_DIR}/include/modem/)
-zephyr_include_directories(${ZEPHYR_NRF_MODULE_DIR}/lib/lte_link_control/)
-zephyr_include_directories(${ZEPHYR_NRF_MODULE_DIR}/lib/lte_link_control/include)
-zephyr_include_directories(${ZEPHYR_NRF_MODULE_DIR}/lib/lte_link_control/include/modules/)
-zephyr_include_directories(${ZEPHYR_NRF_MODULE_DIR}/lib/lte_link_control/include/common/)
-zephyr_include_directories(${ZEPHYR_NRF_MODULE_DIR}/lib/at_monitor/)
-zephyr_include_directories(${ZEPHYR_NRF_MODULE_DIR}/lib/at_parser/)
-zephyr_include_directories(${ZEPHYR_BASE}/subsys/testsuite/include)
+zephyr_include_directories(
+  ${CMAKE_CURRENT_SOURCE_DIR}/stubs
+  ${ZEPHYR_NRFXLIB_MODULE_DIR}/nrf_modem/include/
+  ${ZEPHYR_NRF_MODULE_DIR}/include/modem/
+  ${ZEPHYR_NRF_MODULE_DIR}/lib/lte_link_control/
+  ${ZEPHYR_NRF_MODULE_DIR}/lib/lte_link_control/include
+  ${ZEPHYR_NRF_MODULE_DIR}/lib/lte_link_control/include/modules/
+  ${ZEPHYR_NRF_MODULE_DIR}/lib/lte_link_control/include/common/
+  ${ZEPHYR_NRF_MODULE_DIR}/lib/at_monitor/
+  ${ZEPHYR_NRF_MODULE_DIR}/lib/at_parser/
+  ${ZEPHYR_BASE}/subsys/testsuite/include
+)
 
-add_compile_definitions(CONFIG_LTE_LC_PDN_MODULE=1)
-add_compile_definitions(CONFIG_LTE_LC_PDN_HEAP_SIZE=64)
-add_compile_definitions(CONFIG_LTE_LC_PDN_ESM_TIMEOUT=1000)
-add_compile_definitions(CONFIG_LTE_LC_PDN_DEFAULTS_OVERRIDE)
-add_compile_definitions(CONFIG_LTE_LC_PDN_DEFAULT_APN="apn0")
-add_compile_definitions(CONFIG_LTE_LC_PDN_DEFAULT_FAM=2)
-add_compile_definitions(CONFIG_LTE_LC_PDN_ESM_STRERROR)
-add_compile_definitions(CONFIG_HEAP_MEM_POOL_ADD_SIZE_LTE_LC_PDN=64)
-add_compile_definitions(CONFIG_LTE_LINK_CONTROL)
-add_compile_definitions(CONFIG_LTE_LC_CELLULAR_PROFILE_MODULE=1)
-add_compile_definitions(CONFIG_LTE_LINK_CONTROL_LOG_LEVEL=0)
-add_compile_definitions(CONFIG_AT_MONITOR_LOG_LEVEL=0)
-add_compile_definitions(CONFIG_HEAP_MEM_POOL_ADD_SIZE_LTE_LINK_CONTROL=96)
+add_compile_definitions(
+  CONFIG_LTE_LC_PDN_MODULE=1
+  CONFIG_LTE_LC_PDN_ESM_TIMEOUT=1000
+  CONFIG_LTE_LC_PDN_DEFAULTS_OVERRIDE
+  CONFIG_LTE_LC_PDN_DEFAULT_APN="apn0"
+  CONFIG_LTE_LC_PDN_DEFAULT_FAM=2
+  CONFIG_LTE_LC_PDN_ESM_STRERROR
+  CONFIG_LTE_LINK_CONTROL
+  CONFIG_LTE_LC_CELLULAR_PROFILE_MODULE=1
+  CONFIG_LTE_LINK_CONTROL_LOG_LEVEL=0
+  CONFIG_AT_MONITOR_LOG_LEVEL=0
+  CONFIG_HEAP_MEM_POOL_ADD_SIZE_LTE_LINK_CONTROL=96
+)

tests/lib/lte_lc_pdn/prj.conf

@@ -0,0 +1,8 @@
+#
+# Copyright (c) 2025 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+CONFIG_UNITY=y
+CONFIG_TEST=y