Merge pull request #12455 from miri64/tests/cleanup/unittests-blacklist

unittests: remove board blacklist, fix doc for MCU architectures

tests/unittests/Makefile

@@ -1,23 +1,6 @@
 DEVELHELP ?= 0
 include ../Makefile.tests_common
 
-# Issue with integer width
-# There are present for a long time but hidden by being not compiled
-BOARD_BLACKLIST += arduino-duemilanove
-BOARD_BLACKLIST += arduino-leonardo
-BOARD_BLACKLIST += arduino-mega2560
-BOARD_BLACKLIST += arduino-nano
-BOARD_BLACKLIST += arduino-uno
-BOARD_BLACKLIST += chronos
-BOARD_BLACKLIST += mega-xplained
-BOARD_BLACKLIST += msb-430
-BOARD_BLACKLIST += msb-430h
-BOARD_BLACKLIST += telosb
-BOARD_BLACKLIST += waspmote-pro
-BOARD_BLACKLIST += wsn430-v1_3b
-BOARD_BLACKLIST += wsn430-v1_4
-BOARD_BLACKLIST += z1
-
 BOARD_INSUFFICIENT_MEMORY := airfy-beacon \
                              arduino-duemilanove \
                              arduino-leonardo \

tests/unittests/tests-pkt/Makefile.include

@@ -1 +1,5 @@
 USEMODULE += gnrc_ipv6
+
+# Test assumes 32-bit width for `size_t` which is only the case on our 32-bit
+# platforms
+FEATURES_REQUIRED += arch_32bit

tests/unittests/tests-rtc/Makefile.include

@@ -1,3 +1,10 @@
 CFLAGS += -DRTC_NORMALIZE_COMPAT=1
 
 USEMODULE += periph_rtc_common
+
+# MSP-430's libc does not provide `mktime()` used by this test
+FEATURES_BLACKLIST += arch_msp430
+
+# AVR/ATmega uses `int8_t` for `struct tm` which leads to integer overflows
+# in these tests
+FEATURES_BLACKLIST += arch_avr8