libexpand = $(subst $(subst ,, ),:,$(foreach lib,$(1),$(BR)/install-$(2)-native/vpp/$(lib)/$(3)))
export TEST_DIR ?= $(WS_ROOT)/test
+export RND_SEED ?= $(shell python3 -c 'import time; print(time.time())')
define test
$(if $(filter-out $(3),retest),make -C $(BR) PLATFORM=$(1) TAG=$(2) vpp-install,)
EXTENDED_TESTS=$(EXTENDED_TESTS) \
PYTHON=$(PYTHON) \
OS_ID=$(OS_ID) \
+ RND_SEED=$(RND_SEED) \
CACHE_OUTPUT=$(CACHE_OUTPUT) \
$(3)
endef