Added support for running an HTTP server during the test and being able to serve up static files. L…

utils/testrunner/client_server_task.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.
+
+/**
+ * A RunClientServerTask is like a regular RunProcessTask except it starts
+ * an HTTP server before the task and stops it afterwards, so the task
+ * would typically be making HTTP client requests.
+ */
+class RunClientServerTask extends RunProcessTask {
+  RunProcessTask serverTask;
+  Process serverProcess;
+
+  RunClientServerTask(String commandTemplate, List argumentTemplates,
+      int timeout) : super(commandTemplate, argumentTemplates, timeout) {
+    serverTask = new RunProcessTask(
+        config.dartPath,
+        ['$runnerDirectory${Platform.pathSeparator}'
+            'http_server_test_runner.dart',
+            '--port=${config.port}',
+            '--root=${config.staticRoot}'],
+        1000 * timeout);
+  }
+
+  execute(Path testfile, List stdout, List stderr,
+                        bool logging, Function exitHandler) {
+    serverProcess = serverTask.execute(testfile, stdout, stderr, logging,
+        (e) { serverProcess = null; });
+    super.execute(testfile, stdout, stderr, logging, exitHandler);
+  }
+
+  void cleanup(Path testfile, List stdout, List stderr,
+               bool verboseLogging, bool keepTestFiles) {
+    if (serverProcess != null) {
+      serverProcess.kill();
+    }
+  }
+}