JSON: Adding ctest

This commit adds node based tests provided by Nico to the ctest
framework already established in UPM.

Signed-off-by: Abhishek Malik <abhishek.malik@intel.com>

tests/CMakeLists.txt

@@ -74,3 +74,11 @@ if (BUILDSWIGPYTHON AND PYTHON3INTERP_FOUND)
         ${CMAKE_SOURCE_DIR}/examples/python/*.py
         WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/src/)
 endif (BUILDSWIGPYTHON AND PYTHON3INTERP_FOUND)
+
+# add JSON test
+if(NPM_EXECUTABLE)
+    add_test (NAME check_jsons COMMAND ${CMAKE_COMMAND}
+        -DNPMEXEC=${NPM_EXECUTABLE}
+        -DUPMBASEDIR=${CMAKE_SOURCE_DIR}
+        -P ${CMAKE_SOURCE_DIR}/tests/runjsontest.cmake)
+endif(NPM_EXECUTABLE)