michael@0: // test that things that are expected to be in gre-resources are still there
michael@0: 
michael@0: var ios = Cc["@mozilla.org/network/io-service;1"]. getService(Ci.nsIIOService);
michael@0: 
michael@0: function wrapInputStream(input)
michael@0: {
michael@0:   var nsIScriptableInputStream = Components.interfaces.nsIScriptableInputStream;
michael@0:   var factory = Components.classes["@mozilla.org/scriptableinputstream;1"];
michael@0:   var wrapper = factory.createInstance(nsIScriptableInputStream);
michael@0:   wrapper.init(input);
michael@0:   return wrapper;
michael@0: }
michael@0: 
michael@0: function check_file(file) {
michael@0:   var channel = ios.newChannel("resource://gre-resources/"+file, null, null);
michael@0:   try {
michael@0:     let instr = wrapInputStream(channel.open());
michael@0:     do_check_true(instr.read(1024).length > 0)
michael@0:   } catch (e) {
michael@0:     do_throw("Failed to read " + file + " from gre-resources:"+e)
michael@0:   }
michael@0: }
michael@0: 
michael@0: function run_test() {
michael@0:   for each(let file in ["charsetData.properties"])
michael@0:     check_file(file)
michael@0: }