Merge IO v2 branch to bleeding edge

tests/standalone/io/http_head_test.dart

-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import "dart:io";
 
 void testHEAD(int totalConnections) {
-  HttpServer server = new HttpServer();
-  server.onError = (e) => Expect.fail("Unexpected error $e");
-  server.listen("127.0.0.1", 0, backlog: totalConnections);
-  server.addRequestHandler(
-      (request) => request.path == "/test100",
-      (HttpRequest request, HttpResponse response) {
-        response.contentLength = 100;
-        response.outputStream.close();
-      });
-  server.addRequestHandler(
-      (request) => request.path == "/test200",
-      (HttpRequest request, HttpResponse response) {
-        response.contentLength = 200;
-        List<int> data = new List<int>.fixedLength(200);
-        response.outputStream.write(data);
-        response.outputStream.close();
+  HttpServer.bind().then((server) {
+    server.listen((request) {
+        var response = request.response;
+        if (request.uri.path == "/test100") {
+          response.contentLength = 100;
+          response.close();
+        } else if (request.uri.path == "/test200") {
+          response.contentLength = 200;
+          List<int> data = new List<int>.fixedLength(200, fill: 0);
+          response.add(data);
+          response.close();
+        } else {
+          assert(false);
+        }
       });
 
-  HttpClient client = new HttpClient();
+    HttpClient client = new HttpClient();
 
-  int count = 0;
-  for (int i = 0; i < totalConnections; i++) {
-    HttpClientConnection conn;
-    int len = (i % 2 == 0) ? 100 : 200;
-    if (i % 2 == 0) {
-      conn = client.open("HEAD", "127.0.0.1", server.port, "/test$len");
-    } else {
-      conn = client.open("HEAD", "127.0.0.1", server.port, "/test$len");
+    int count = 0;
+    for (int i = 0; i < totalConnections; i++) {
+      int len = (i % 2 == 0) ? 100 : 200;
+      client.open("HEAD", "127.0.0.1", server.port, "/test$len")
+        .then((request) => request.close())
+        .then((HttpClientResponse response) {
+          Expect.equals(len, response.contentLength);
+          response.listen(
+            (_) => Expect.fail("Data from HEAD request"),
+            onDone: () {
+              count++;
+              if (count == totalConnections) {
+                client.close();
+                server.close();
+              }
+            });
+        });
     }
-    conn.onError = (e) => Expect.fail("Unexpected error $e");
-    conn.onResponse = (HttpClientResponse response) {
-      Expect.equals(len, response.contentLength);
-      response.inputStream.onData = () => Expect.fail("Data from HEAD request");
-      response.inputStream.onClosed = () {
-        count++;
-        if (count == totalConnections) {
-          client.shutdown();
-          server.close();
-        }
-      };
-    };
-  }
+  });
 }
 
 void main() {
   testHEAD(4);
 }