Merge IO v2 branch to bleeding edge

tests/standalone/io/regress_7097_test.dart

-// Copyright (c) 2012, 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:async';
-import 'dart:io';
-import 'dart:uri';
-
-void main() {
-  var client = new HttpClient();
-  var server = new HttpServer();
-
-  var count = 0;
-  server.defaultRequestHandler = (HttpRequest request, HttpResponse response) {
-    List<int> data = [];
-    request.inputStream.onData = () {
-      data.addAll(request.inputStream.read());
-    };
-    request.inputStream.onClosed = () {
-      count++;
-      Expect.equals(count, data.length);
-      switch (count - 1) {
-        case 0:
-          response.outputStream.writeFrom([65, 66, 67], 1, 1);
-          break;
-        case 1:
-          response.outputStream.writeFrom([65, 66, 67], 1);
-          break;
-        case 2:
-          response.outputStream.writeFrom([65, 66, 67]);
-          break;
-        default:
-          Expect.fail("Unexpected state");
-      }
-      response.outputStream.close();
-    };
-  };
-  server.listen('127.0.0.1', 0);
-
-  Future makeRequest(int n) {
-    var completer = new Completer();
-    var url = Uri.parse("http://localhost:${server.port}");
-    var connection = client.openUrl("POST", url);
-    connection.onRequest = (HttpClientRequest request) {
-      request.contentLength = n + 1;
-      switch (n) {
-        case 0:
-          request.outputStream.writeFrom([65, 66, 67], 1, 1);
-          break;
-        case 1:
-          request.outputStream.writeFrom([65, 66, 67], 1);
-          break;
-        case 2:
-          request.outputStream.writeFrom([65, 66, 67]);
-          break;
-        default:
-          Expect.fail("Unexpected state");
-      }
-      request.outputStream.close();
-    };
-    connection.onResponse = (HttpClientResponse response) {
-      List<int> data = [];
-      response.inputStream.onData = () {
-        data.addAll(response.inputStream.read());
-      };
-      response.inputStream.onClosed = () {
-        Expect.equals(count, data.length);
-        completer.complete(null);
-      };
-    };
-    return completer.future;
-  }
-
-  makeRequest(0).then((_) {
-    makeRequest(1).then((_) {
-      makeRequest(2).then((_) {
-        client.shutdown();
-        server.close();
-      });
-    });
-  });
-}