Add tests

Add a test rule that is used to test the output of xdgmenumaker. Also
add a test-clean rule that cleans the files that are generated during
testing.

Makefile

@@ -20,8 +20,14 @@ install:
 clean:
 	rm -f man/xdgmenumaker.1
 
+test:
+	$(MAKE) -C tests/
+
+test-clean:
+	$(MAKE) clean -C tests/
+
 uninstall:
 	rm -f $(DESTDIR)/$(PREFIX)/bin/xdgmenumaker
 	rm -f $(DESTDIR)/$(PREFIX)/share/desktop-directories/xdgmenumaker*
 
-.PHONY: man clean install uninstall
+.PHONY: man clean install uninstall test test-clean

tests/Makefile

@@ -0,0 +1,41 @@
+MM = ../src/xdgmenumaker
+
+test: clean generate
+	@for i in `ls menus_correct/`; do \
+		diff menus_correct/$$i menus_test/$$i 2>&1 > /dev/null && \
+			echo "PASS: $$i" \
+		|| \
+			echo "FAIL: $$i"; \
+	done
+
+generate:
+	mkdir -p menus_test
+	XDGMENUMAKER_TEST=1 LANG=en_US.utf8 \
+		$(MM) -f fluxbox > menus_test/fluxbox_en
+	XDGMENUMAKER_TEST=1 LANG=en_US.utf8 \
+		$(MM) -f fluxbox -i > menus_test/fluxbox_icons_en
+	XDGMENUMAKER_TEST=1 LANG=en_US.utf8 \
+		$(MM) -f fluxbox -i -s 48 > menus_test/fluxbox_icons48_en
+	XDGMENUMAKER_TEST=1 LANG=el_GR.utf8 \
+		$(MM) -f fluxbox > menus_test/fluxbox_el
+	XDGMENUMAKER_TEST=1 LANG=en_US.utf8 \
+		$(MM) -f fluxbox -n > menus_test/fluxbox_nosubmenu_en
+	XDGMENUMAKER_TEST=1 LANG=en_US.utf8 \
+		$(MM) -f icewm > menus_test/icewm_en
+	XDGMENUMAKER_TEST=1 LANG=de_DE.utf8 \
+		$(MM) -f icewm > menus_test/icewm_de
+	XDGMENUMAKER_TEST=1 LANG=en_US.utf8 \
+		$(MM) -f jwm > menus_test/jwm_en
+	XDGMENUMAKER_TEST=1 LANG=fr_FR.utf8 \
+		$(MM) -f jwm > menus_test/jwm_fr
+	XDGMENUMAKER_TEST=1 LANG=en_US.utf8 \
+		$(MM) -f pekwm > menus_test/pekwm_en
+	XDGMENUMAKER_TEST=1 LANG=en_US.utf8 \
+		$(MM) -f pekwm --pekwm-dynamic > menus_test/pekwm_dynamic_en
+	XDGMENUMAKER_TEST=1 LANG=en_US.utf8 \
+		$(MM) -f windowmaker > menus_test/windowmaker_en
+
+clean:
+	rm -rf menus_test
+
+.PHONY: test generate clean