diff --git a/CMake/3rd/gmock.cmake b/CMake/3rd/gmock.cmake
index 2809898b682c62d823aae28cb11a5afbdfc2a6bf..c74f67607a549d59f75d6c21685878643923bb59 100644
--- a/CMake/3rd/gmock.cmake
+++ b/CMake/3rd/gmock.cmake
@@ -10,3 +10,6 @@
     target_link_directories(${library_name} PRIVATE ${GMOCK_ROOT}/build/lib)
 
     target_link_libraries(${library_name} PRIVATE gtest gmock gmock_main)
+
+    #add_compile_options (-std=c++11)
+    add_definitions("-std=c++11") #TODO: Really necessary?
diff --git a/CMake/FileUtilities.cmake b/CMake/FileUtilities.cmake
index 2a72a047230aadcd7e0ffea403ae0fd67b0df24c..676d1ab567482492cc94c033b19486d2869c5e4c 100644
--- a/CMake/FileUtilities.cmake
+++ b/CMake/FileUtilities.cmake
@@ -1,3 +1,10 @@
+#################################################################################
+## Helper functions for building source groups
+## and extracting test/production files.
+##
+## After function call the files are stored in: MY_SRCS
+#################################################################################
+
 macro(includeAllFiles targetName file_path)
 	set(collectTestFiles ON)
 	set(collectProductionFiles ON)
@@ -6,7 +13,6 @@ macro(includeAllFiles targetName file_path)
 endmacro(includeAllFiles)
 
 
-
 macro(includeProductionFiles targetName file_path)
 	set(collectTestFiles OFF)
 	set(collectProductionFiles ON)
@@ -16,35 +22,31 @@ endmacro(includeProductionFiles)
 
 
 
-macro(includeTestFiles targetName file_path)
+macro(includeTestFiles targetName file_paths)
 	set(collectTestFiles ON)
 	set(collectProductionFiles OFF)
 
-	includeFiles(${targetName} "${file_path}")
+	includeFiles(${targetName} "${file_paths}")
 endmacro(includeTestFiles)
 
 
 
 
-macro(includeFiles targetName file_path)
-	foreach(file ${file_path})
-		#message("File: " ${file})
-		get_filename_component(package_dir ${file} DIRECTORY)
+macro(includeFiles targetName file_paths)
+
+	foreach(file ${file_paths})
 
+		get_filename_component(package_dir ${file} DIRECTORY)
+		#message("File: " ${file})
 		#message("package_dir: " ${package_dir})
 
-		 collectFilesFrom(${file})
+		collectFilesFrom(${file})
 		if (package_dir)
-		 #setSourceGroupForFilesIn(${package_dir} ${targetName})
-		 buildSourceGroup(${targetName} ${package_dir})
-
-		 if(isAllTestSuite)
-			 source_group(${targetName}\\${SOURCE_GROUP} FILES ${MY_SRCS})
-		 else()
-			 source_group(${SOURCE_GROUP} FILES ${file})
-		 endif()
+		   setSourceGroupForFilesIn(${package_dir} ${targetName})
 		endif()
+
 	endforeach()
+
 endmacro(includeFiles)
 
 
@@ -52,23 +54,20 @@ endmacro(includeFiles)
 macro(collectFilesFrom path)
 	#input: path from files to collect
 
-	#foreach(_file ${path})
-		get_filename_component(fileName ${path} NAME)
-		if(collectTestFiles)
-			if(${fileName} MATCHES "Test" OR ${fileName} MATCHES "Mock")
-				set(MY_SRCS ${MY_SRCS} ${path})
-			endif()
+	get_filename_component(fileName ${path} NAME)
+	if(collectTestFiles)
+		if(${fileName} MATCHES "Test" OR ${fileName} MATCHES "Mock")
+			set(MY_SRCS ${MY_SRCS} ${path})
 		endif()
-		if(collectProductionFiles)
-			if(NOT ${fileName} MATCHES "Test" AND NOT ${fileName} MATCHES "Mock")
-				set(MY_SRCS ${MY_SRCS} ${path})
-			endif()
+	endif()
+	if(collectProductionFiles)
+		if(NOT ${fileName} MATCHES "Test" AND NOT ${fileName} MATCHES "Mock")
+			set(MY_SRCS ${MY_SRCS} ${path})
 		endif()
-	#endforeach()
-	#set(MY_SRCS ${MY_SRCS} ${COLLECTED_FILES_IN_PATH})
+	endif()
 
 	#output: MY_SRCS
-endmacro(collectFilesFrom)
+endmacro()
 
 
 
diff --git a/CMake/VirtualFluidsMacros.cmake b/CMake/VirtualFluidsMacros.cmake
index f01ab981946a12ba3ced3a8eb50b133f40f1adfe..5734fc4659eae4db68cd653d963513fdfe093bbc 100644
--- a/CMake/VirtualFluidsMacros.cmake
+++ b/CMake/VirtualFluidsMacros.cmake
@@ -8,7 +8,7 @@
 #################################################################################
 
 function(status msg)
-    message(STATUS " VF  -- ${msg}")
+    message(STATUS "  VF - ${msg}")
 endfunction()
 
 #################################################################################
@@ -231,32 +231,33 @@ endfunction()
 ## Precondition: BUILD_VF_UNIT_TESTS needs to be ON
 #################################################################################
 function(vf_add_tests)
+
     if (NOT BUILD_VF_UNIT_TESTS)
         return()
     endif()
 
+    # get the test library name
     vf_get_library_test_name(library_test_name)
     vf_get_library_name (folder_name)
 
     status("Add test executable: ${library_test_name}")
 
+    # set test files to MY_SRCS
     file ( GLOB_RECURSE all_files ${VIRTUAL_FLUIDS_GLOB_FILES} )
+    includeTestFiles (${folder_name} "${all_files}")
 
-    set(sourceFiles ${sourceFiles} ${all_files})
-    includeTestFiles (${folder_name} "${sourceFiles}")
-
-    cmake_print_variables(MY_SRCS)
-
+    # add the target
     add_executable(${library_test_name} ${MY_SRCS})
 
+    # link tested library
     target_link_libraries(${library_test_name} PRIVATE ${folder_name})
 
+    # link tested library
     target_include_directories(${library_test_name} PRIVATE ${CMAKE_BINARY_DIR})
     target_include_directories(${library_test_name} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
     target_include_directories(${library_test_name} PRIVATE ${CMAKE_SOURCE_DIR}/src)
 
+    # link googlemock
     include(${CMAKE_PATH}/3rd/gmock.cmake)
-    #add_compile_options (-std=c++11)
-    add_definitions("-std=c++11")
 
-endfunction()
\ No newline at end of file
+endfunction()