Merge IO v2 branch to bleeding edge

tests/standalone/io/https_client_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:io";
 import "dart:uri";
 import "dart:isolate";
 
 
-int testGoogleUrlCount = 0;
 void testGoogleUrl() {
+  int testsStarted = 0;
+  int testsFinished = 0;
+  bool allStarted = false;
   HttpClient client = new HttpClient();
 
   void testUrl(String url) {
+    testsStarted++;
     var requestUri = Uri.parse(url);
-    var conn = client.getUrl(requestUri);
-
-    conn.onRequest = (HttpClientRequest request) {
-      request.outputStream.close();
-    };
-    conn.onResponse = (HttpClientResponse response) {
-      testGoogleUrlCount++;
-      Expect.isTrue(response.statusCode < 500);
-      if (requestUri.path.length == 0) {
-        Expect.isTrue(response.statusCode != 404);
-      }
-      response.inputStream.onData = () {
-        response.inputStream.read();
-      };
-      response.inputStream.onClosed = () {
-        if (testGoogleUrlCount == 4) client.shutdown();
-      };
-    };
-    conn.onError = (error) => Expect.fail("Unexpected IO error $error");
+    client.getUrl(requestUri)
+        .then((HttpClientRequest request) => request.close())
+        .then((HttpClientResponse response) {
+          Expect.isTrue(response.statusCode < 500);
+          if (requestUri.path.length == 0) {
+            Expect.isTrue(response.statusCode != 404);
+          }
+          response.listen((data) { }, onDone: () {
+            if (++testsFinished == testsStarted && allStarted) client.close();
+          });
+        })
+        .catchError((error) => Expect.fail("Unexpected IO error: $error"));
   }
 
   testUrl('https://www.google.dk');
   testUrl('https://www.google.dk');
   testUrl('https://www.google.dk/#q=foo');
   testUrl('https://www.google.dk/#hl=da&q=foo');
+  allStarted = true;
 }
 
 void testBadHostName() {
   HttpClient client = new HttpClient();
-  HttpClientConnection connection = client.getUrl(
-      Uri.parse("https://some.bad.host.name.7654321/"));
-  connection.onRequest = (HttpClientRequest request) {
-    Expect.fail("Should not open a request on bad hostname");
-  };
   ReceivePort port = new ReceivePort();
-  connection.onError = (Exception error) {
-    port.close();  // We expect onError to be called, due to bad host name.
-  };
+  client.getUrl(Uri.parse("https://some.bad.host.name.7654321/"))
+      .then((HttpClientRequest request) {
+        Expect.fail("Should not open a request on bad hostname");
+      })
+      .catchError((error) {
+        port.close();  // Should throw an error on bad hostname.
+      });
 }
 
 void InitializeSSL() {
   SecureSocket.initialize();
 }
 
 void main() {
   testGoogleUrl();
   testBadHostName();
   Expect.throws(InitializeSSL);
 }