michael@0: const BinaryInputStream =
michael@0:   Components.Constructor("@mozilla.org/binaryinputstream;1",
michael@0:                          "nsIBinaryInputStream", "setInputStream");
michael@0: const BinaryOutputStream =
michael@0:   Components.Constructor("@mozilla.org/binaryoutputstream;1",
michael@0:                          "nsIBinaryOutputStream", "setOutputStream");
michael@0: 
michael@0: const Pipe =
michael@0:   Components.Constructor("@mozilla.org/pipe;1", "nsIPipe", "init");
michael@0: 
michael@0: const kNestedAboutCID = "{2f277c00-0eaf-4ddb-b936-41326ba48aae}";
michael@0: 
michael@0: function run_test()
michael@0: {
michael@0:   var ios = Cc["@mozilla.org/network/io-service;1"].createInstance(Ci.nsIIOService);
michael@0: 
michael@0:   var baseURI = ios.newURI("http://example.com/", "UTF-8", null);
michael@0: 
michael@0:   // This depends on the redirector for about:license having the
michael@0:   // nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT flag.
michael@0:   var aboutLicense = ios.newURI("about:license", "UTF-8", baseURI);
michael@0: 
michael@0:   var pipe = new Pipe(false, false, 0, 0, null);
michael@0:   var output = new BinaryOutputStream(pipe.outputStream);
michael@0:   var input = new BinaryInputStream(pipe.inputStream);
michael@0:   output.QueryInterface(Ci.nsIObjectOutputStream);
michael@0:   input.QueryInterface(Ci.nsIObjectInputStream);
michael@0: 
michael@0:   output.writeCompoundObject(aboutLicense, Ci.nsIURI, true);
michael@0:   var copy = input.readObject(true);
michael@0:   copy.QueryInterface(Ci.nsIURI);
michael@0: 
michael@0:   do_check_eq(copy.asciiSpec, aboutLicense.asciiSpec);
michael@0:   do_check_true(copy.equals(aboutLicense));
michael@0: }