Mbed CLI 2 generates TARGET_ARM_FM macro as a string in mbed_config.cmake
under the MBED_TARGET_DEFINITIONS list. Fix the "if defined" check for
TARGET_ARM_FM by searching for the TARGET_ARM_FM string in the
MBED_TARGET_DEFINITIONS list. This allows us to skip or include the test from CMake.
Initially, every library greentea test has its project() creation in
their CMake. As running greentea using CTest move all greentea test
suite under one global project mbed-os and MBED_CONFIG_PATH set at
the root mbed os CMake under the condition BUILD_GREENTEA_TESTS
check so refactored platform greentea CMake accordingly.
Assumption that greentea test file is always named main.cpp is
incorrect. Updated mbed_greentea_add_test() macro to make TEST_SOURCES
parameter compulsory, which is used to specify greentea test
file(s). This allows tests to use C, or have a different name.
Therefore also updated all pre-existing greentea test CMake files to
explicity add main.cpp to TEST_SOURCES.
Mbed OS will soon be changing directory structure to the below:
```
[component name]
├── mbed_lib.json
├── CMakeList.txt
├── README.md
├── include
│ └── [component name]
│ └── internal
├── source
└── tests
├── <framework>
│ └── <test suite one>
├── UNITTESTS
│ └── <unit test suite one>
└── TESTS
└── <greentea test suite one>
```
This PR implements the above new directory structure for the current \platform directory.
**NOTE:** This PR does NOT include the refactoring of UNITTESTS as shown in the above directory structure. This will be done in a subsequent PR.
Rajkumar Kanagaraj
Hari Limaye
Ashok Rao