diff --git a/tests/unit/CMakeLists.txt b/tests/unit/CMakeLists.txt
index cd5d5be..53fd3a5 100644
--- a/tests/unit/CMakeLists.txt
+++ b/tests/unit/CMakeLists.txt
@@ -17,6 +17,9 @@ endfunction()
 add_executable(system_tests ${CMAKE_CURRENT_SOURCE_DIR}/system_test.cpp)
 add_catch_test(system_tests)
 
+set(MODULES_STUBS_DIR ${CMAKE_SOURCE_DIR}/tests/unit/modules/stubs)
+set(LOGIC_STUBS_DIR ${CMAKE_SOURCE_DIR}/tests/unit/logic/stubs)
+
 # now, include all the unit tests; they should add themselves using the add_catch_test function
 add_subdirectory(hal)
 add_subdirectory(logic)
diff --git a/tests/unit/logic/cut_filament/CMakeLists.txt b/tests/unit/logic/cut_filament/CMakeLists.txt
index 07d0990..6f8618f 100644
--- a/tests/unit/logic/cut_filament/CMakeLists.txt
+++ b/tests/unit/logic/cut_filament/CMakeLists.txt
@@ -1,27 +1,27 @@
 # define the test executable
 add_executable(
   cut_filament_tests
-  ../../../../src/logic/cut_filament.cpp
-  ../../../../src/logic/feed_to_finda.cpp
-  ../../../../src/logic/unload_filament.cpp
-  ../../../../src/logic/unload_to_finda.cpp
-  ../../../../src/modules/buttons.cpp
-  ../../../../src/modules/debouncer.cpp
-  ../../../../src/modules/finda.cpp
-  ../../../../src/modules/fsensor.cpp
-  ../../../../src/modules/globals.cpp
-  ../../../../src/modules/idler.cpp
-  ../../../../src/modules/leds.cpp
-  ../../../../src/modules/permanent_storage.cpp
-  ../../../../src/modules/selector.cpp
-  ../../../../src/modules/user_input.cpp
-  ../../modules/stubs/stub_adc.cpp
-  ../../modules/stubs/stub_eeprom.cpp
-  ../../modules/stubs/stub_gpio.cpp
-  ../../modules/stubs/stub_shr16.cpp
-  ../../modules/stubs/stub_timebase.cpp
-  ../stubs/main_loop_stub.cpp
-  ../stubs/stub_motion.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/cut_filament.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/feed_to_finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/unload_filament.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/unload_to_finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/buttons.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/debouncer.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/fsensor.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/globals.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/idler.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/leds.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/permanent_storage.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/selector.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/user_input.cpp
+  ${MODULES_STUBS_DIR}/stub_adc.cpp
+  ${MODULES_STUBS_DIR}/stub_eeprom.cpp
+  ${MODULES_STUBS_DIR}/stub_gpio.cpp
+  ${MODULES_STUBS_DIR}/stub_shr16.cpp
+  ${MODULES_STUBS_DIR}/stub_timebase.cpp
+  ${LOGIC_STUBS_DIR}/main_loop_stub.cpp
+  ${LOGIC_STUBS_DIR}/stub_motion.cpp
   test_cut_filament.cpp
   )
 
diff --git a/tests/unit/logic/eject_filament/CMakeLists.txt b/tests/unit/logic/eject_filament/CMakeLists.txt
index 40f277d..0f424fe 100644
--- a/tests/unit/logic/eject_filament/CMakeLists.txt
+++ b/tests/unit/logic/eject_filament/CMakeLists.txt
@@ -1,27 +1,27 @@
 # define the test executable
 add_executable(
   eject_filament_tests
-  ../../../../src/logic/eject_filament.cpp
-  ../../../../src/logic/feed_to_finda.cpp
-  ../../../../src/logic/unload_filament.cpp
-  ../../../../src/logic/unload_to_finda.cpp
-  ../../../../src/modules/buttons.cpp
-  ../../../../src/modules/debouncer.cpp
-  ../../../../src/modules/finda.cpp
-  ../../../../src/modules/fsensor.cpp
-  ../../../../src/modules/globals.cpp
-  ../../../../src/modules/idler.cpp
-  ../../../../src/modules/leds.cpp
-  ../../../../src/modules/permanent_storage.cpp
-  ../../../../src/modules/selector.cpp
-  ../../../../src/modules/user_input.cpp
-  ../../modules/stubs/stub_adc.cpp
-  ../../modules/stubs/stub_eeprom.cpp
-  ../../modules/stubs/stub_gpio.cpp
-  ../../modules/stubs/stub_shr16.cpp
-  ../../modules/stubs/stub_timebase.cpp
-  ../stubs/main_loop_stub.cpp
-  ../stubs/stub_motion.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/eject_filament.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/feed_to_finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/unload_filament.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/unload_to_finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/buttons.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/debouncer.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/fsensor.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/globals.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/idler.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/leds.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/permanent_storage.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/selector.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/user_input.cpp
+  ${MODULES_STUBS_DIR}/stub_adc.cpp
+  ${MODULES_STUBS_DIR}/stub_eeprom.cpp
+  ${MODULES_STUBS_DIR}/stub_gpio.cpp
+  ${MODULES_STUBS_DIR}/stub_shr16.cpp
+  ${MODULES_STUBS_DIR}/stub_timebase.cpp
+  ${LOGIC_STUBS_DIR}/main_loop_stub.cpp
+  ${LOGIC_STUBS_DIR}/stub_motion.cpp
   test_eject_filament.cpp
   )
 
diff --git a/tests/unit/logic/feed_to_bondtech/CMakeLists.txt b/tests/unit/logic/feed_to_bondtech/CMakeLists.txt
index d727aeb..550372b 100644
--- a/tests/unit/logic/feed_to_bondtech/CMakeLists.txt
+++ b/tests/unit/logic/feed_to_bondtech/CMakeLists.txt
@@ -1,24 +1,24 @@
 # define the test executable
 add_executable(
   feed_to_bondtech_tests
-  ../../../../src/logic/feed_to_bondtech.cpp
-  ../../../../src/modules/buttons.cpp
-  ../../../../src/modules/debouncer.cpp
-  ../../../../src/modules/finda.cpp
-  ../../../../src/modules/fsensor.cpp
-  ../../../../src/modules/globals.cpp
-  ../../../../src/modules/idler.cpp
-  ../../../../src/modules/leds.cpp
-  ../../../../src/modules/permanent_storage.cpp
-  ../../../../src/modules/selector.cpp
-  ../../../../src/modules/user_input.cpp
-  ../../modules/stubs/stub_adc.cpp
-  ../../modules/stubs/stub_eeprom.cpp
-  ../../modules/stubs/stub_gpio.cpp
-  ../../modules/stubs/stub_shr16.cpp
-  ../../modules/stubs/stub_timebase.cpp
-  ../stubs/main_loop_stub.cpp
-  ../stubs/stub_motion.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/feed_to_bondtech.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/buttons.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/debouncer.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/fsensor.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/globals.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/idler.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/leds.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/permanent_storage.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/selector.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/user_input.cpp
+  ${MODULES_STUBS_DIR}/stub_adc.cpp
+  ${MODULES_STUBS_DIR}/stub_eeprom.cpp
+  ${MODULES_STUBS_DIR}/stub_gpio.cpp
+  ${MODULES_STUBS_DIR}/stub_shr16.cpp
+  ${MODULES_STUBS_DIR}/stub_timebase.cpp
+  ${LOGIC_STUBS_DIR}/main_loop_stub.cpp
+  ${LOGIC_STUBS_DIR}/stub_motion.cpp
   test_feed_to_bondtech.cpp
   )
 
diff --git a/tests/unit/logic/feed_to_finda/CMakeLists.txt b/tests/unit/logic/feed_to_finda/CMakeLists.txt
index 1965ccd..1709ac7 100644
--- a/tests/unit/logic/feed_to_finda/CMakeLists.txt
+++ b/tests/unit/logic/feed_to_finda/CMakeLists.txt
@@ -1,24 +1,24 @@
 # define the test executable
 add_executable(
   feed_to_finda_tests
-  ../../../../src/logic/feed_to_finda.cpp
-  ../../../../src/modules/buttons.cpp
-  ../../../../src/modules/debouncer.cpp
-  ../../../../src/modules/finda.cpp
-  ../../../../src/modules/fsensor.cpp
-  ../../../../src/modules/globals.cpp
-  ../../../../src/modules/idler.cpp
-  ../../../../src/modules/leds.cpp
-  ../../../../src/modules/permanent_storage.cpp
-  ../../../../src/modules/selector.cpp
-  ../../../../src/modules/user_input.cpp
-  ../../modules/stubs/stub_adc.cpp
-  ../../modules/stubs/stub_eeprom.cpp
-  ../../modules/stubs/stub_gpio.cpp
-  ../../modules/stubs/stub_shr16.cpp
-  ../../modules/stubs/stub_timebase.cpp
-  ../stubs/main_loop_stub.cpp
-  ../stubs/stub_motion.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/feed_to_finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/buttons.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/debouncer.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/fsensor.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/globals.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/idler.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/leds.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/permanent_storage.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/selector.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/user_input.cpp
+  ${MODULES_STUBS_DIR}/stub_adc.cpp
+  ${MODULES_STUBS_DIR}/stub_eeprom.cpp
+  ${MODULES_STUBS_DIR}/stub_gpio.cpp
+  ${MODULES_STUBS_DIR}/stub_shr16.cpp
+  ${MODULES_STUBS_DIR}/stub_timebase.cpp
+  ${LOGIC_STUBS_DIR}/main_loop_stub.cpp
+  ${LOGIC_STUBS_DIR}/stub_motion.cpp
   test_feed_to_finda.cpp
   )
 
diff --git a/tests/unit/logic/load_filament/CMakeLists.txt b/tests/unit/logic/load_filament/CMakeLists.txt
index 22619d3..b95d53b 100644
--- a/tests/unit/logic/load_filament/CMakeLists.txt
+++ b/tests/unit/logic/load_filament/CMakeLists.txt
@@ -1,26 +1,26 @@
 # define the test executable
 add_executable(
   load_filament_tests
-  ../../../../src/logic/feed_to_bondtech.cpp
-  ../../../../src/logic/feed_to_finda.cpp
-  ../../../../src/logic/load_filament.cpp
-  ../../../../src/modules/buttons.cpp
-  ../../../../src/modules/debouncer.cpp
-  ../../../../src/modules/finda.cpp
-  ../../../../src/modules/fsensor.cpp
-  ../../../../src/modules/globals.cpp
-  ../../../../src/modules/idler.cpp
-  ../../../../src/modules/leds.cpp
-  ../../../../src/modules/permanent_storage.cpp
-  ../../../../src/modules/selector.cpp
-  ../../../../src/modules/user_input.cpp
-  ../../modules/stubs/stub_adc.cpp
-  ../../modules/stubs/stub_eeprom.cpp
-  ../../modules/stubs/stub_gpio.cpp
-  ../../modules/stubs/stub_shr16.cpp
-  ../../modules/stubs/stub_timebase.cpp
-  ../stubs/main_loop_stub.cpp
-  ../stubs/stub_motion.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/feed_to_bondtech.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/feed_to_finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/load_filament.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/buttons.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/debouncer.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/fsensor.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/globals.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/idler.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/leds.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/permanent_storage.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/selector.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/user_input.cpp
+  ${MODULES_STUBS_DIR}/stub_adc.cpp
+  ${MODULES_STUBS_DIR}/stub_eeprom.cpp
+  ${MODULES_STUBS_DIR}/stub_gpio.cpp
+  ${MODULES_STUBS_DIR}/stub_shr16.cpp
+  ${MODULES_STUBS_DIR}/stub_timebase.cpp
+  ${LOGIC_STUBS_DIR}/main_loop_stub.cpp
+  ${LOGIC_STUBS_DIR}/stub_motion.cpp
   test_load_filament.cpp
   )
 
diff --git a/tests/unit/logic/tool_change/CMakeLists.txt b/tests/unit/logic/tool_change/CMakeLists.txt
index 00c6c5e..c33f919 100644
--- a/tests/unit/logic/tool_change/CMakeLists.txt
+++ b/tests/unit/logic/tool_change/CMakeLists.txt
@@ -1,29 +1,29 @@
 # define the test executable
 add_executable(
   tool_change_tests
-  ../../../../src/logic/feed_to_bondtech.cpp
-  ../../../../src/logic/feed_to_finda.cpp
-  ../../../../src/logic/load_filament.cpp
-  ../../../../src/logic/tool_change.cpp
-  ../../../../src/logic/unload_filament.cpp
-  ../../../../src/logic/unload_to_finda.cpp
-  ../../../../src/modules/buttons.cpp
-  ../../../../src/modules/debouncer.cpp
-  ../../../../src/modules/finda.cpp
-  ../../../../src/modules/fsensor.cpp
-  ../../../../src/modules/globals.cpp
-  ../../../../src/modules/idler.cpp
-  ../../../../src/modules/leds.cpp
-  ../../../../src/modules/permanent_storage.cpp
-  ../../../../src/modules/selector.cpp
-  ../../../../src/modules/user_input.cpp
-  ../../modules/stubs/stub_adc.cpp
-  ../../modules/stubs/stub_eeprom.cpp
-  ../../modules/stubs/stub_gpio.cpp
-  ../../modules/stubs/stub_shr16.cpp
-  ../../modules/stubs/stub_timebase.cpp
-  ../stubs/main_loop_stub.cpp
-  ../stubs/stub_motion.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/feed_to_bondtech.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/feed_to_finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/load_filament.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/tool_change.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/unload_filament.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/unload_to_finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/buttons.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/debouncer.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/fsensor.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/globals.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/idler.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/leds.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/permanent_storage.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/selector.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/user_input.cpp
+  ${MODULES_STUBS_DIR}/stub_adc.cpp
+  ${MODULES_STUBS_DIR}/stub_eeprom.cpp
+  ${MODULES_STUBS_DIR}/stub_gpio.cpp
+  ${MODULES_STUBS_DIR}/stub_shr16.cpp
+  ${MODULES_STUBS_DIR}/stub_timebase.cpp
+  ${LOGIC_STUBS_DIR}/main_loop_stub.cpp
+  ${LOGIC_STUBS_DIR}/stub_motion.cpp
   test_tool_change.cpp
   )
 
diff --git a/tests/unit/logic/unload_filament/CMakeLists.txt b/tests/unit/logic/unload_filament/CMakeLists.txt
index 0b4cc25..b5a8d58 100644
--- a/tests/unit/logic/unload_filament/CMakeLists.txt
+++ b/tests/unit/logic/unload_filament/CMakeLists.txt
@@ -1,26 +1,26 @@
 # define the test executable
 add_executable(
   unload_filament_tests
-  ../../../../src/logic/feed_to_finda.cpp
-  ../../../../src/logic/unload_filament.cpp
-  ../../../../src/logic/unload_to_finda.cpp
-  ../../../../src/modules/buttons.cpp
-  ../../../../src/modules/debouncer.cpp
-  ../../../../src/modules/finda.cpp
-  ../../../../src/modules/fsensor.cpp
-  ../../../../src/modules/globals.cpp
-  ../../../../src/modules/idler.cpp
-  ../../../../src/modules/leds.cpp
-  ../../../../src/modules/permanent_storage.cpp
-  ../../../../src/modules/selector.cpp
-  ../../../../src/modules/user_input.cpp
-  ../../modules/stubs/stub_adc.cpp
-  ../../modules/stubs/stub_eeprom.cpp
-  ../../modules/stubs/stub_gpio.cpp
-  ../../modules/stubs/stub_shr16.cpp
-  ../../modules/stubs/stub_timebase.cpp
-  ../stubs/main_loop_stub.cpp
-  ../stubs/stub_motion.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/feed_to_finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/unload_filament.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/unload_to_finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/buttons.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/debouncer.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/fsensor.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/globals.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/idler.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/leds.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/permanent_storage.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/selector.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/user_input.cpp
+  ${MODULES_STUBS_DIR}/stub_adc.cpp
+  ${MODULES_STUBS_DIR}/stub_eeprom.cpp
+  ${MODULES_STUBS_DIR}/stub_gpio.cpp
+  ${MODULES_STUBS_DIR}/stub_shr16.cpp
+  ${MODULES_STUBS_DIR}/stub_timebase.cpp
+  ${LOGIC_STUBS_DIR}/main_loop_stub.cpp
+  ${LOGIC_STUBS_DIR}/stub_motion.cpp
   test_unload_filament.cpp
   )
 
diff --git a/tests/unit/logic/unload_to_finda/CMakeLists.txt b/tests/unit/logic/unload_to_finda/CMakeLists.txt
index c0a215a..4721d4d 100644
--- a/tests/unit/logic/unload_to_finda/CMakeLists.txt
+++ b/tests/unit/logic/unload_to_finda/CMakeLists.txt
@@ -1,24 +1,24 @@
 # define the test executable
 add_executable(
   unload_to_finda_tests
-  ../../../../src/logic/unload_to_finda.cpp
-  ../../../../src/modules/buttons.cpp
-  ../../../../src/modules/debouncer.cpp
-  ../../../../src/modules/finda.cpp
-  ../../../../src/modules/fsensor.cpp
-  ../../../../src/modules/globals.cpp
-  ../../../../src/modules/idler.cpp
-  ../../../../src/modules/leds.cpp
-  ../../../../src/modules/permanent_storage.cpp
-  ../../../../src/modules/selector.cpp
-  ../../../../src/modules/user_input.cpp
-  ../../modules/stubs/stub_adc.cpp
-  ../../modules/stubs/stub_eeprom.cpp
-  ../../modules/stubs/stub_gpio.cpp
-  ../../modules/stubs/stub_shr16.cpp
-  ../../modules/stubs/stub_timebase.cpp
-  ../stubs/main_loop_stub.cpp
-  ../stubs/stub_motion.cpp
+  ${CMAKE_SOURCE_DIR}/src/logic/unload_to_finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/buttons.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/debouncer.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/finda.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/fsensor.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/globals.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/idler.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/leds.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/permanent_storage.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/selector.cpp
+  ${CMAKE_SOURCE_DIR}/src/modules/user_input.cpp
+  ${MODULES_STUBS_DIR}/stub_adc.cpp
+  ${MODULES_STUBS_DIR}/stub_eeprom.cpp
+  ${MODULES_STUBS_DIR}/stub_gpio.cpp
+  ${MODULES_STUBS_DIR}/stub_shr16.cpp
+  ${MODULES_STUBS_DIR}/stub_timebase.cpp
+  ${LOGIC_STUBS_DIR}/main_loop_stub.cpp
+  ${LOGIC_STUBS_DIR}/stub_motion.cpp
   test_unload_to_finda.cpp
   )
 
diff --git a/tests/unit/modules/buttons/CMakeLists.txt b/tests/unit/modules/buttons/CMakeLists.txt
index 7bc32c3..4116fde 100644
--- a/tests/unit/modules/buttons/CMakeLists.txt
+++ b/tests/unit/modules/buttons/CMakeLists.txt
@@ -1,7 +1,8 @@
 # define the test executable
 add_executable(
-  buttons_tests ../../../../src/modules/buttons.cpp ../../../../src/modules/debouncer.cpp
-                ../stubs/stub_adc.cpp ../stubs/stub_timebase.cpp test_buttons.cpp
+  buttons_tests
+  ${CMAKE_SOURCE_DIR}/src/modules/buttons.cpp ${CMAKE_SOURCE_DIR}/src/modules/debouncer.cpp
+  ${MODULES_STUBS_DIR}/stub_adc.cpp ${MODULES_STUBS_DIR}/stub_timebase.cpp test_buttons.cpp
   )
 
 # define required search paths
diff --git a/tests/unit/modules/leds/CMakeLists.txt b/tests/unit/modules/leds/CMakeLists.txt
index 045db8a..8643d17 100644
--- a/tests/unit/modules/leds/CMakeLists.txt
+++ b/tests/unit/modules/leds/CMakeLists.txt
@@ -1,7 +1,7 @@
 # define the test executable
 add_executable(
-  leds_tests ../../../../src/modules/leds.cpp ../stubs/stub_shr16.cpp ../stubs/stub_timebase.cpp
-             test_leds.cpp
+  leds_tests ${CMAKE_SOURCE_DIR}/src/modules/leds.cpp ${MODULES_STUBS_DIR}/stub_shr16.cpp
+             ${MODULES_STUBS_DIR}/stub_timebase.cpp test_leds.cpp
   )
 
 # define required search paths
diff --git a/tests/unit/modules/protocol/CMakeLists.txt b/tests/unit/modules/protocol/CMakeLists.txt
index 75344ba..58d1a78 100644
--- a/tests/unit/modules/protocol/CMakeLists.txt
+++ b/tests/unit/modules/protocol/CMakeLists.txt
@@ -1,5 +1,5 @@
 # define the test executable
-add_executable(protocol_tests ../../../../src/modules/protocol.cpp test_protocol.cpp)
+add_executable(protocol_tests ${CMAKE_SOURCE_DIR}/src/modules/protocol.cpp test_protocol.cpp)
 
 # define required search paths
 target_include_directories(protocol_tests PUBLIC ${CMAKE_SOURCE_DIR}/src/modules)