michael@0: function round_trip(uri) {
michael@0:   var objectOutStream = Cc["@mozilla.org/binaryoutputstream;1"].
michael@0:                        createInstance(Ci.nsIObjectOutputStream);
michael@0:   var pipe = Cc["@mozilla.org/pipe;1"].createInstance(Ci.nsIPipe);
michael@0:   pipe.init(false, false, 0, 0xffffffff, null);
michael@0:   objectOutStream.setOutputStream(pipe.outputStream);
michael@0:   objectOutStream.writeCompoundObject(uri, Ci.nsISupports, true);
michael@0:   objectOutStream.close();
michael@0: 
michael@0:   var objectInStream = Cc["@mozilla.org/binaryinputstream;1"].
michael@0:                        createInstance(Ci.nsIObjectInputStream);
michael@0:   objectInStream.setInputStream(pipe.inputStream);
michael@0:   return objectInStream.readObject(true).QueryInterface(Ci.nsIURI);
michael@0: }
michael@0: 
michael@0: var prefData =
michael@0:   [
michael@0:     {
michael@0:       name: "network.IDN_show_punycode",
michael@0:       newVal: false
michael@0:     },
michael@0:     {
michael@0:       name: "network.IDN.whitelist.ch",
michael@0:       newVal: true
michael@0:     }
michael@0:   ];
michael@0: 
michael@0: function run_test() {
michael@0:   var ios = Cc["@mozilla.org/network/io-service;1"].
michael@0:     getService(Ci.nsIIOService);
michael@0: 
michael@0:   var uri1 = ios.newURI("file:///", null, null);
michael@0:   do_check_true(uri1 instanceof Ci.nsIFileURL);
michael@0: 
michael@0:   var uri2 = uri1.clone();
michael@0:   do_check_true(uri2 instanceof Ci.nsIFileURL);
michael@0:   do_check_true(uri1.equals(uri2));
michael@0: 
michael@0:   var uri3 = round_trip(uri1);
michael@0:   do_check_true(uri3 instanceof Ci.nsIFileURL);
michael@0:   do_check_true(uri1.equals(uri3));
michael@0: 
michael@0:   // Make sure our prefs are set such that this test actually means something
michael@0:   var prefs = Cc["@mozilla.org/preferences-service;1"].
michael@0:               getService(Ci.nsIPrefBranch);
michael@0:   for each (var pref in prefData) {
michael@0:     try {
michael@0:       pref.oldVal = prefs.getBoolPref(pref.name);
michael@0:     } catch(e) {
michael@0:     }
michael@0:     prefs.setBoolPref(pref.name, pref.newVal);
michael@0:   }
michael@0:   
michael@0:   try {
michael@0:     // URI stolen from
michael@0:     // http://lists.w3.org/Archives/Public/public-iri/2004Mar/0012.html
michael@0:     var uri4 = ios.newURI("http://xn--jos-dma.example.net.ch/", null, null);
michael@0:     do_check_eq(uri4.asciiHost, "xn--jos-dma.example.net.ch");
michael@0:     do_check_eq(uri4.host, "jos\u00e9.example.net.ch");
michael@0:     
michael@0:     var uri5 = round_trip(uri4);
michael@0:     do_check_true(uri4.equals(uri5));
michael@0:     do_check_eq(uri4.host, uri5.host);
michael@0:     do_check_eq(uri4.asciiHost, uri5.asciiHost);
michael@0:   } finally {
michael@0:     for each (var pref in prefData) {
michael@0:       if (prefs.prefHasUserValue(pref.name))
michael@0:         prefs.clearUserPref(pref.name);
michael@0:     }
michael@0:   }
michael@0: }