dart:io | Add test for HttpClient requests that never complete their future.

tests/standalone/io/https_unauthorized_test.dart

Index: tests/standalone/io/https_unauthorized_test.dart
diff --git a/tests/standalone/io/https_bad_certificate_test.dart b/tests/standalone/io/https_unauthorized_test.dart
similarity index 69%
copy from tests/standalone/io/https_bad_certificate_test.dart
copy to tests/standalone/io/https_unauthorized_test.dart
index 90236809de01c5a9988505d4b53dfccfd9cf96fb..f8fe73181245547aba197e70e0ec6d536622e054 100644
--- a/tests/standalone/io/https_bad_certificate_test.dart
+++ b/tests/standalone/io/https_unauthorized_test.dart
@@ -2,7 +2,8 @@
 // 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.
 
-// This test verifies that the bad certificate callback works in HttpClient.
+// This test verifies that secure connections that fail due to
+// unauthenticated certificates throw exceptions in HttpClient.
 
 import "package:expect/expect.dart";
 import "package:path/path.dart";
@@ -29,15 +30,15 @@ Future<SecureServerSocket> runServer() {
 
 void main() {
   final options = new Options();
-  var clientScript =
-      join(dirname(options.script), 'https_bad_certificate_client.dart');
+  var clientScript = join(dirname(options.script),
+                          'https_unauthorized_client.dart');
 
-  Future clientProcess(int port, String acceptCertificate) {
+  Future clientProcess(int port) {
     return Process.run(options.executable,
-        [clientScript, port.toString(), acceptCertificate])
+        [clientScript, port.toString()])
     .then((ProcessResult result) {
       if (result.exitCode != 0 || !result.stdout.contains('SUCCESS')) {
-        print("Client failed, acceptCertificate: $acceptCertificate");
+        print("Client failed");
         print("  stdout:");
         print(result.stdout);
         print("  stderr:");
@@ -48,10 +49,7 @@ void main() {
   }
 
   runServer().then((server) {
-    Future.wait([clientProcess(server.port, 'true'),
-                 clientProcess(server.port, 'false'),
-                 clientProcess(server.port, 'fisk'),
-                 clientProcess(server.port, 'exception')]).then((_) {
+    clientProcess(server.port).then((_) {
       server.close();
     });
   });