rtos: Remove UNITTEST macro from rtos

Production code should not contain any test-specific checks. Rather
than checking `UNITTEST`, unit tests can directly set
`MBED_CONF_RTOS_PRESENT=1` to make RTOS available for testing.

Note: The cellular ATHandler test also has `MBED_CONF_RTOS_PRESENT=1`
added because `ATHandler.cpp` contains a check of this variable.

Author: LDong-Arm

connectivity/cellular/tests/UNITTESTS/framework/device/athandler/CMakeLists.txt

@@ -13,6 +13,7 @@ target_compile_definitions(${TEST_NAME}
         DEVICE_INTERRUPTIN=1
         MBED_CONF_PLATFORM_DEFAULT_SERIAL_BAUD_RATE=115200
         MBED_CONF_CELLULAR_AT_HANDLER_BUFFER_SIZE=32
+        MBED_CONF_RTOS_PRESENT=1
 )
 
 target_sources(${TEST_NAME}

rtos/include/rtos/Thread.h

@@ -33,7 +33,7 @@
 #include "rtos/Semaphore.h"
 #include "rtos/Mutex.h"
 
-#if MBED_CONF_RTOS_PRESENT || defined(DOXYGEN_ONLY) || defined(UNITTEST)
+#if MBED_CONF_RTOS_PRESENT || defined(DOXYGEN_ONLY)
 
 namespace rtos {
 /** \addtogroup rtos-public-api */

rtos/include/rtos/internal/mbed_rtos1_types.h

@@ -17,7 +17,7 @@
 #ifndef MBED_RTOS_RTX1_TYPES_H
 #define MBED_RTOS_RTX1_TYPES_H
 
-#if MBED_CONF_RTOS_PRESENT || defined(UNITTEST)
+#if MBED_CONF_RTOS_PRESENT
 
 #include "cmsis_os.h"
 

rtos/include/rtos/internal/mbed_rtos_storage.h

@@ -17,7 +17,7 @@
 #ifndef MBED_RTOS_STORAGE_H
 #define MBED_RTOS_STORAGE_H
 
-#if MBED_CONF_RTOS_PRESENT || defined(UNITTEST)
+#if MBED_CONF_RTOS_PRESENT
 
 #include "mbed_rtx_storage.h"
 

rtos/include/rtos/mbed_rtos_types.h

@@ -17,7 +17,7 @@
 #ifndef RTOS_TYPES_H_
 #define RTOS_TYPES_H_
 
-#if MBED_CONF_RTOS_PRESENT || defined(DOXYGEN_ONLY) || defined(UNITTEST)
+#if MBED_CONF_RTOS_PRESENT || defined(DOXYGEN_ONLY)
 #include "cmsis_os2.h"
 #else
 

rtos/tests/UNITTESTS/doubles/CMakeLists.txt

@@ -18,7 +18,10 @@ target_include_directories(mbed-stubs-rtos-headers
 
 add_library(mbed-stubs-rtos)
 
-add_definitions(-DUNITTEST)
+target_compile_definitions(mbed-stubs-rtos
+    PRIVATE
+        MBED_CONF_RTOS_PRESENT=1
+)
 
 target_sources(mbed-stubs-rtos
     PRIVATE