unix Makefile: easy wait to print test failures as diffs

Author: jepler

ports/unix/Makefile

@@ -309,6 +309,10 @@ test_full: $(PROG) $(TOP)/tests/run-tests.py
 	cd $(TOP)/tests && MICROPY_MICROPYTHON=../$(DIRNAME)/$(PROG) ./run-tests.py --via-mpy $(RUN_TESTS_MPY_CROSS_FLAGS) --emit native -d basics float micropython
 	cat $(TOP)/tests/basics/0prelim.py | ./$(PROG) | grep -q 'abc'
 
+.PHONY: print-failures clean-failures
+print-failures clean-failures:
+	../../tests/run-tests.py --$@
+
 test_gcov: test_full
 	gcov -o $(BUILD)/py $(TOP)/py/*.c
 	gcov -o $(BUILD)/extmod $(TOP)/extmod/*.c