diff --git a/scripts/cmake/test/AddTest.cmake b/scripts/cmake/test/AddTest.cmake
index e84158d831589d4223c48500d86259be974a57a2..10b5bf12a89b33c75e97c11c3c2913f5045b9151 100644
--- a/scripts/cmake/test/AddTest.cmake
+++ b/scripts/cmake/test/AddTest.cmake
@@ -59,18 +59,18 @@ function (AddTest)
 
 
 	# --- Implement wrappers ---
-	# check requirements
+	# check requirements, disable if not met
 	if(AddTest_WRAPPER STREQUAL "time" AND NOT TIME_TOOL_PATH)
-		message(FATAL_ERROR "time-command is required for time wrapper but was not found!")
+		return()
 	endif()
 	if(AddTest_WRAPPER STREQUAL "memcheck" AND NOT VALGRIND_TOOL_PATH)
-		message(FATAL_ERROR "Valgrind is required for memcheck wrapper but was not found!")
+		return()
 	endif()
 	if(AddTest_WRAPPER STREQUAL "callgrind" AND NOT VALGRIND_TOOL_PATH)
-		message(FATAL_ERROR "Valgrind is required for callgrind wrapper but was not found!")
+		return()
 	endif()
 	if(AddTest_WRAPPER STREQUAL "mpirun" AND NOT MPIRUN_TOOL_PATH)
-		message(FATAL_ERROR "mpirun is required for mpirun wrapper but was not found!")
+		return()
 	endif()
 
 	if(AddTest_WRAPPER STREQUAL "time")
@@ -86,19 +86,20 @@ function (AddTest)
 	endif()
 
 	# --- Implement testers ---
-	# check requirements
+	# check requirements, disable if not met
 	if(AddTest_TESTER STREQUAL "diff" AND NOT DIFF_TOOL_PATH)
-		message(FATAL_ERROR "diff-command is required for diff tester but was not found!")
+		return()
 	endif()
 	if(AddTest_TESTER STREQUAL "numdiff" AND NOT NUMDIFF_TOOL_PATH)
-		message(FATAL_ERROR "numdiff-command is required for numdiff tester but was not found!")
+		return()
 	endif()
+	if(AddTest_TESTER STREQUAL "memcheck" AND NOT GREP_TOOL_PATH)
+		return()
+	endif()
+
 	if((AddTest_TESTER STREQUAL "diff" OR AddTest_TESTER STREQUAL "numdiff") AND NOT AddTest_DIFF_DATA)
 		message(FATAL_ERROR "AddTest(): ${AddTest_NAME} - no DIFF_DATA given!")
 	endif()
-	if(AddTest_TESTER STREQUAL "memcheck" AND NOT GREP_TOOL_PATH)
-		message(FATAL_ERROR "grep-command is required for memcheck tester but was not found!")
-	endif()
 
 	if(AddTest_TESTER STREQUAL "diff")
 		set(SELECTED_DIFF_TOOL_PATH ${DIFF_TOOL_PATH})
diff --git a/scripts/cmake/test/Test.cmake b/scripts/cmake/test/Test.cmake
index 35982ff7560c78d0b2f608bda32f86cc4a69e7b2..5c13b193e340e3f7e6691142f697ac5230612839 100644
--- a/scripts/cmake/test/Test.cmake
+++ b/scripts/cmake/test/Test.cmake
@@ -8,6 +8,28 @@ FIND_PROGRAM(BASH_TOOL_PATH bash)
 FIND_PROGRAM(VALGRIND_TOOL_PATH valgrind)
 FIND_PROGRAM(MPIRUN_TOOL_PATH mpirun)
 
+if(NOT TIME_TOOL_PATH)
+	message(STATUS "time-command is required for time wrapper but was not found! All corresponding tests are disabled.")
+endif()
+if(NOT VALGRIND_TOOL_PATH)
+	message(STATUS "Valgrind is required for memcheck wrapper but was not found! All corresponding tests are disabled.")
+endif()
+if(NOT VALGRIND_TOOL_PATH)
+	message(STATUS "Valgrind is required for callgrind wrapper but was not found! All corresponding tests are disabled.")
+endif()
+if(NOT MPIRUN_TOOL_PATH)
+	message(STATUS "mpirun is required for mpirun wrapper but was not found! All corresponding tests are disabled.")
+endif()
+if(NOT DIFF_TOOL_PATH)
+	message(STATUS "diff-command is required for diff tester but was not found! All corresponding tests are disabled.")
+endif()
+if(NOT NUMDIFF_TOOL_PATH)
+	message(STATUS "numdiff-command is required for numdiff tester but was not found! All corresponding tests are disabled.")
+endif()
+if(NOT GREP_TOOL_PATH)
+	message(STATUS "grep-command is required for memcheck tester but was not found! All corresponding tests are disabled.")
+endif()
+
 ENABLE_TESTING() # Enable CTest
 
 # See http://www.vtk.org/Wiki/CMake/Testing_With_CTest for some customization options