Remove the UNITTEST macro from production code

UNITTESTS/target_h/platform/cxxsupport/mstd_type_traits

@@ -20,33 +20,14 @@
 /* <mstd_type_traits>
  *
  * - includes toolchain's <type_traits>
- * - For ARM C 5, standard C++11/14 features:
- *   - std::integral_constant, std::true_type, std::false_type
- *   - primary type categories (std::is_void, std::is_integral etc)
- *   - composite type categories (std::is_reference etc)
- *   - type properties (std::is_const, std::is_constructible etc), except std::is_final
- *   - type property queries (std::alignment_of, std::rank, std::extent)
- *   - type relations (std::is_same, std::is_base_of, std::is_convertible)
- *   - const-volatile modifications (std::remove_cv, std::add_const etc)
- *   - reference modifications (std::remove_reference, std::add_lvalue_reference etc)
- *   - sign modifications (std::make_signed, std::make_unsigned)
- *   - array modifications (std::remove_extent, std::remove_all_extents)
- *   - pointer modifications (std::remove_pointer, std::add_pointer)
- *   - other modifications:
- *      - std::aligned_storage
- *      - std::decay
- *      - std::enable_if
- *      - std::conditional
- *      - std::common_type
- *      - std::underlying_type
- *      - std::result_of
  * - For all toolchains, C++17/20 backports:
  *   - mstd::type_identity
  *   - mstd::bool_constant
  *   - mstd::void_t
  *   - mstd::is_invocable, mbed::is_invocable_r, etc
  *   - mstd::invoke_result
  *   - logical operator traits (mstd::conjunction, mstd::disjunction, mstd::negation)
+ *   - mstd::is_constant_evaluated
  */
 
 #include <mstd_cstddef>
@@ -55,7 +36,6 @@
 // The template stuff in here is too confusing for astyle
 // *INDENT-OFF*
 
-
 namespace mstd {
 
 /* C++20 type identity */
@@ -92,6 +72,10 @@ template <typename F, typename... Args>
 struct invoke_result;
 #endif
 
+} // namespace mstd
+
+namespace mstd {
+
 using std::is_same;
 using std::conditional;
 using std::conditional_t;
@@ -462,8 +446,30 @@ struct is_nothrow_invocable_r : impl::is_invocable_r<R, invoke_result<F, Args...
 
 #endif // __cpp_lib_is_invocable
 
+/* C++20 is_constant_evaluated */
+constexpr bool is_constant_evaluated() noexcept
+{
+#ifdef __clang__
+#if __has_builtin(__builtin_is_constant_evaluated)
+#define MSTD_HAS_IS_CONSTANT_EVALUATED 1
+   return __builtin_is_constant_evaluated();
+#else
+   return false;
+#endif
+#elif __GNUC__ >= 9
+#define MSTD_HAS_IS_CONSTANT_EVALUATED 1
+   return __builtin_is_constant_evaluated();
+#else
+   return false;
+#endif
+}
 
-} // namespace mstd
+#if MSTD_HAS_IS_CONSTANT_EVALUATED
+#define MSTD_CONSTEXPR_IF_HAS_IS_CONSTANT_EVALUATED constexpr
+#else
+#define MSTD_CONSTEXPR_IF_HAS_IS_CONSTANT_EVALUATED
+#endif
 
+} // namespace mstd
 
 #endif /* MSTD_TYPE_TRAITS_ */

UNITTESTS/target_h/platform/mbed_assert.h

@@ -41,9 +41,7 @@ extern "C" {
  */
 // mbed_assert_internal UT stub only prints an assert trace and returns, so therefore
 // MBED_NORETURN must not be defined for UTs.
-#ifndef UNITTEST
 MBED_NORETURN
-#endif
 void mbed_assert_internal(const char *expr, const char *file, int line);
 
 #ifdef __cplusplus

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}

drivers/include/drivers/MbedCRC.h

@@ -29,12 +29,7 @@
 #include "platform/SingletonPtr.h"
 #include "platform/PlatformMutex.h"
 
-#ifdef UNITTEST
-#include <type_traits>
-#define MSTD_CONSTEXPR_IF_HAS_IS_CONSTANT_EVALUATED
-#else
 #include <mstd_type_traits>
-#endif
 
 namespace mbed {
 /** \addtogroup drivers-public-api */

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

storage/kvstore/filesystemstore/tests/UNITTESTS/FileSystemStore/CMakeLists.txt

@@ -7,7 +7,6 @@ add_executable(${TEST_NAME})
 
 target_compile_definitions(${TEST_NAME} 
     PRIVATE
-        UNITTEST
         MBED_LFS_READ_SIZE=64
         MBED_LFS_PROG_SIZE=64
         MBED_LFS_BLOCK_SIZE=512

storage/kvstore/tdbstore/tests/UNITTESTS/TDBStore/CMakeLists.txt

@@ -5,11 +5,6 @@ set(TEST_NAME tdbstore-unittest)
 
 add_executable(${TEST_NAME})
 
-target_compile_definitions(${TEST_NAME} 
-    PRIVATE
-        UNITTEST
-)
-
 target_sources(${TEST_NAME}
     PRIVATE
         ${mbed-os_SOURCE_DIR}/storage/blockdevice/source/HeapBlockDevice.cpp