Putting Constant tests into cmake build

tests/CMakeLists.txt

@@ -5,6 +5,7 @@ include_directories( ${CMAKE_SOURCE_DIR} )
 add_definitions(-DLIBWCCL_TEST_DATA_DIR="${PROJECT_SOURCE_DIR}/")
 
 add_executable(tests
+	constant_tests.cpp
 	main.cpp
 	variables.cpp
 	position.cpp