michael@0: var Cc = Components.classes;
michael@0: var Ci = Components.interfaces;
michael@0: 
michael@0: var listener = {
michael@0:   expect_failure: false,
michael@0:   QueryInterface: function listener_qi(iid) {
michael@0:     if (iid.equals(Ci.nsISupports) ||
michael@0:         iid.equals(Ci.nsIUnicharStreamLoaderObserver)) {
michael@0:       return this;
michael@0:     }
michael@0:     throw Components.results.NS_ERROR_NO_INTERFACE;
michael@0:   },
michael@0:   onDetermineCharset : function onDetermineCharset(loader, context, data)
michael@0:   {
michael@0:     return "us-ascii";
michael@0:   },
michael@0:   onStreamComplete : function onStreamComplete (loader, context, status, data)
michael@0:   {
michael@0:     try {
michael@0:       if (this.expect_failure)
michael@0:         do_check_false(Components.isSuccessCode(status));
michael@0:       else
michael@0:         do_check_eq(status, Components.results.NS_OK);
michael@0:       do_check_eq(data, "");
michael@0:       do_check_neq(loader.channel, null);
michael@0:       tests[current_test++]();
michael@0:     } finally {
michael@0:       do_test_finished();
michael@0:     }
michael@0:   }
michael@0: };
michael@0: 
michael@0: var current_test = 0;
michael@0: var tests = [test1, test2, done];
michael@0: 
michael@0: function run_test() {
michael@0:   tests[current_test++]();
michael@0: }
michael@0: 
michael@0: function test1() {
michael@0:   var f =
michael@0:       Cc["@mozilla.org/network/unichar-stream-loader;1"].
michael@0:       createInstance(Ci.nsIUnicharStreamLoader);
michael@0:   f.init(listener);
michael@0: 
michael@0:   var ios = Components.classes["@mozilla.org/network/io-service;1"]
michael@0:                       .getService(Components.interfaces.nsIIOService);
michael@0:   var chan = ios.newChannel("data:text/plain,", null, null);
michael@0:   chan.asyncOpen(f, null);
michael@0:   do_test_pending();
michael@0: }
michael@0: 
michael@0: function test2() {
michael@0:   var f =
michael@0:       Cc["@mozilla.org/network/unichar-stream-loader;1"].
michael@0:       createInstance(Ci.nsIUnicharStreamLoader);
michael@0:   f.init(listener);
michael@0: 
michael@0:   var ios = Components.classes["@mozilla.org/network/io-service;1"]
michael@0:                       .getService(Components.interfaces.nsIIOService);
michael@0:   var chan = ios.newChannel("http://localhost:0/", null, null);
michael@0:   listener.expect_failure = true;
michael@0:   chan.asyncOpen(f, null);
michael@0:   do_test_pending();
michael@0: }
michael@0: 
michael@0: function done() {
michael@0: }