sys/test_utils/print_stack_usage: add Kconfig support

sys/test_utils/Kconfig

@@ -10,5 +10,6 @@ menu "Test utilities"
 
 rsource "dummy_thread/Kconfig"
 rsource "interactive_sync/Kconfig"
+rsource "print_stack_usage/Kconfig"
 rsource "result_output/Kconfig"
 endmenu # Test utilities

sys/test_utils/print_stack_usage/Kconfig

@@ -0,0 +1,10 @@
+# Copyright (c) 2022 Freie Universität Berlin
+#               2022 Inria
+#
+# This file is subject to the terms and conditions of the GNU Lesser
+# General Public License v2.1. See the file LICENSE in the top level
+# directory for more details.
+#
+
+config MODULE_TEST_UTILS_PRINT_STACK_USAGE
+    bool "Print stack usage metrics on stack exit"

tests/Makefile.tests_common

@@ -1,13 +1,15 @@
 APPLICATION ?= tests_$(notdir $(patsubst %/,%,$(CURDIR)))
 
 ifneq (,$(wildcard $(CURDIR)/tests*/.))
-  DEFAULT_MODULE += test_utils_interactive_sync
   # add interactive test configuration when testing Kconfig
-  ifeq (1,$(TEST_KCONFIG))
-    KCONFIG_ADD_CONFIG += $(RIOTBASE)/tests/test_interactive.config
-  endif
-
+  DEFAULT_MODULE += test_utils_interactive_sync
+  # add stack metric printing configuration when testing Kconfig
   DEFAULT_MODULE += test_utils_print_stack_usage
+
+  # do the same for Kconfig builds
+  ifeq (1,$(TEST_KCONFIG))
+    KCONFIG_ADD_CONFIG += $(RIOTBASE)/tests/test_utils.config
+  endif
 endif
 
 ifneq (,$(filter tests_driver_%,$(APPLICATION)))

tests/test_interactive.config

@@ -1 +0,0 @@
-CONFIG_MODULE_TEST_UTILS_INTERACTIVE_SYNC=y

tests/test_print_stack_usage.config

@@ -0,0 +1 @@
+CONFIG_MODULE_TEST_UTILS_PRINT_STACK_USAGE=y

tests/test_utils.config

@@ -0,0 +1,2 @@
+CONFIG_MODULE_TEST_UTILS_INTERACTIVE_SYNC=y
+CONFIG_MODULE_TEST_UTILS_PRINT_STACK_USAGE=y