Fix datalink/mock test for non-unit_testing board

zephyr/tests/bacnet/datalink/mock/CMakeLists.txt

@@ -25,8 +25,10 @@ get_filename_component(BACNET_SRC ${BACNET_DATALINK_SRC} PATH)
 
 if(BOARD STREQUAL unit_testing)
   file(RELATIVE_PATH BACNET_INCLUDE $ENV{ZEPHYR_BASE} ${BACNET_BASE}/src)
-  list(APPEND INCLUDE ${BACNET_INCLUDE} ${BACNET_INCLUDE}/../test/bacnet/datalink/mock/src)
-  message(STATUS "tdh="${BACNET_TEST_PATH}/src)
+  list(APPEND INCLUDE
+    ${BACNET_INCLUDE}
+    ${BACNET_INCLUDE}/../test/bacnet/datalink/mock/src
+    )
 
   file(GLOB SRC_TEST ${BACNET_TEST_PATH}/src/*.c)
   list(APPEND SOURCES ${SRC_TEST} )
@@ -38,6 +40,7 @@ if(BOARD STREQUAL unit_testing)
     )
 
   add_definitions(-DBACDL_ALL=1)
+  add_definitions(-DUNIT_TESTING=1)
 
   include($ENV{ZEPHYR_BASE}/subsys/testsuite/unittest.cmake)
   project(${BACNET_NAME})
@@ -45,7 +48,10 @@ else()
   include($ENV{ZEPHYR_BASE}/cmake/app/boilerplate.cmake NO_POLICY_SCOPE)
   project(${BACNET_NAME})
 
-  target_include_directories(app PRIVATE ${BACNET_INCLUDE})
+  target_include_directories(app PRIVATE
+    ${BACNET_INCLUDE}
+    ${BACNET_INCLUDE}/../test/bacnet/datalink/mock/src
+    )
   file(GLOB SRC_TEST ${BACNET_TEST_PATH}/src/*.c)
 
   add_definitions(-DBACDL_ALL=1 -DBACNET_ETHERNET_NO_REMAP_DEFINES=1)