New testing

Makefile

@@ -26,10 +26,23 @@ dist: clean
 	tar -czf $(DIST).tar.gz $(DIST)
 	rm -rf $(DIST)
 
-test:
-	@./t/basic
+check:
+	@failed=0; \
+	for f in ./t/*; do \
+	  [ "$$f" = "./t/init.sh" ] && continue; \
+	  [ -f "$$f" ] || continue; \
+	  name=$$(basename "$$f"); \
+	  sh "$$f"; rc=$$?; \
+	  if [ $$rc -eq 0 ]; then \
+	    printf '\e[0;32mPASS\e[0m: t/%s\n' "$$name"; \
+	  else \
+	    printf '\e[0;31mFAIL\e[0m: t/%s\n' "$$name"; \
+	    failed=1; \
+	  fi; \
+	done; \
+	if [ $$failed -ne 0 ]; then exit 1; fi
 
 clean:
 	rm -f $(SRC_OBJ) $(LIB_OBJ) $(BIN) *.gz
 
-.PHONY: dist clean all
+.PHONY: dist clean all check