michael@0: function run_test()
michael@0: {
michael@0:     var failures = false;
michael@0:     var ccManager =
michael@0: 	Components.classes["@mozilla.org/charset-converter-manager;1"]
michael@0: 	.getService(Components.interfaces.nsICharsetConverterManager);
michael@0: 
michael@0:     var decoderList = ccManager.getDecoderList();
michael@0:     while (decoderList.hasMore()) {
michael@0: 	var decoder = decoderList.getNext();
michael@0: 	try {
michael@0: 	    var langGroup = ccManager.getCharsetLangGroupRaw(decoder);
michael@0: 	} catch(e) {
michael@0: 	    dump("no langGroup for " + decoder + "\n");
michael@0: 	    failures = true;
michael@0: 	}
michael@0:     }
michael@0:     if (failures) {
michael@0: 	do_throw("missing langGroups");
michael@0:     }
michael@0: }