tests: more clear output log

tests/Makefile

@@ -4,6 +4,9 @@ rawtests = \
 	test_env_manip \
 	metacharacters \
 
+ifeq ($(CFLAGS),)
+	CFLAGS = -Wall -Wextra -Werror -g
+endif
 tests = $(addprefix test_,$(rawtests))
 test_objs = $(addsuffix .o,$(tests))
 objs := $(addprefix ../,$(objs)) testutil.o
@@ -19,8 +22,9 @@ LINCLUDE = -L$(LIBFTDIR)
 
 .PHONY: run
 
+.NOTPARALLEL: run
 run: $(tests)
-	$(addprefix ./,$(addsuffix &&,$(tests))) echo "Finished running C tests"
+	@echo "Finished running C tests"
 
 -include $(deps)
 
@@ -30,6 +34,10 @@ run: $(tests)
 
 test_%: %.o $(objs)
 	$(CC) $(CFLAGS) -o $@ $*.o $(objs) $(LINCLUDE) $(LDLIBS)
+	@echo
+	@echo "====== Now running test: $@ ======"
+	@echo
+	./$@
 
 fclean:
 	rm -f $(tests)