fix makefiles slightly

Makefile

@@ -4,7 +4,6 @@ export DIST
 
 build: src
 clean: src
-	rm -r test/*
 
 src:
 	$(MAKE) -C $@ $(MAKECMDGOALS)
@@ -12,8 +11,9 @@ src:
 dev-init: # ubuntu only 
 	apt install -y python3 openjdk-21-jre-headless
 
-test:
+test: build
+	mkdir -p test/world/datapacks/
 	cp dist/* test/world/datapacks/
 	cd test && java -Xmx1024M -Xms1024M -jar server.jar nogui 
 
-.PHONY: all src test
+.PHONY: all src dev-init test

src/Makefile

@@ -12,4 +12,6 @@ clean:
 		rm -f "$(DIST)/$$d.zip" ; \
 	done
 
-.PHONY: all $(SUBDIRS)
+test: build
+
+.PHONY: all $(SUBDIRS) clean test