simple regex and test

CMakeLists.txt

@@ -11,6 +11,8 @@ endif()
 message("II SOLANACEAE_FACTORIO_STANDALONE " ${SOLANACEAE_FACTORIO_STANDALONE})
 
 option(SOLANACEAE_FACTORIO_BUILD_PLUGINS "Build the factorio plugins" ${SOLANACEAE_FACTORIO_STANDALONE})
+option(SOLANACEAE_FACTORIO_BUILD_TESTING "Build the factorio tests" ${SOLANACEAE_FACTORIO_STANDALONE})
+message("II SOLANACEAE_FACTORIO_TESTING " ${SOLANACEAE_FACTORIO_BUILD_TESTING})
 
 if (SOLANACEAE_FACTORIO_STANDALONE)
 	set(CMAKE_POSITION_INDEPENDENT_CODE ON)
@@ -66,6 +68,11 @@ endif()
 
 add_subdirectory(./src)
 
+if (SOLANACEAE_FACTORIO_BUILD_TESTING)
+	include(CTest)
+	add_subdirectory(./test)
+endif()
+
 if (SOLANACEAE_FACTORIO_BUILD_PLUGINS)
 	add_subdirectory(./plugins)
 endif()