Update from https://crrev.com/318214

testing/legion/examples/hello_world/controller_test.py

Index: testing/legion/examples/hello_world/controller_test.py
diff --git a/testing/legion/examples/hello_world/controller_test.py b/testing/legion/examples/hello_world/controller_test.py
new file mode 100755
index 0000000000000000000000000000000000000000..37afcef6fda718ee3da73d6ca210af95d19dfd99
--- /dev/null
+++ b/testing/legion/examples/hello_world/controller_test.py
@@ -0,0 +1,82 @@
+#!/usr/bin/env python
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""A simple host test module.
+
+This module runs on the host machine and is responsible for creating 2
+task machines, waiting for them, and running RPC calls on them.
+"""
+
+# Map the legion directory so we can import the host controller.
+import sys
+sys.path.append('../../')
+
+import argparse
+import logging
+import time
+
+import test_controller
+
+
+class ExampleTestController(test_controller.TestController):
+  """A simple example controller for a test."""
+
+  def __init__(self):
+    super(ExampleTestController, self).__init__()
+    self.task1 = None
+    self.task2 = None
+
+  def CreateTask(self, isolated_hash):
+    """Create a task object and set the proper values."""
+    task = self.CreateNewTask(
+        isolated_hash=isolated_hash,
+        dimensions={'os': 'Ubuntu-14.04', 'pool': 'Legion'}, priority=200,
+        idle_timeout_secs=90, connection_timeout_secs=90,
+        verbosity=logging.INFO,
+        run_id=1)
+    task.Create()
+    return task
+
+  def SetUp(self):
+    """Create the task machines and wait until they connect.
+
+    In this call the actual creation of the task machines is done in parallel
+    by the system. The WaitForConnect calls are performed in series but will
+    return as soon as the tasks connect.
+    """
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--task-hash')
+    args, _ = parser.parse_known_args()
+
+    self.task1 = self.CreateTask(args.task_hash)
+    self.task2 = self.CreateTask(args.task_hash)
+    self.task1.WaitForConnection()
+    self.task2.WaitForConnection()
+
+  def RunTest(self):
+    """Main method to run the test code."""
+    self.CallEcho(self.task1)
+    self.CallEcho(self.task2)
+    self.CallTaskTest(self.task1)
+    self.CallTaskTest(self.task2)
+
+  def CallEcho(self, task):
+    """Call rpc.Echo on a task."""
+    logging.info('Calling Echo on %s', task.name)
+    logging.info(task.rpc.Echo(task.name))
+
+  def CallTaskTest(self, task):
+    """Call task_test.py name on a task."""
+    logging.info('Calling Subprocess to run "./task_test.py %s"', task.name)
+    proc = task.rpc.subprocess.Popen(['./task_test.py', task.name])
+    task.rpc.subprocess.Wait(proc)
+    retcode = task.rpc.subprocess.GetReturncode(proc)
+    stdout = task.rpc.subprocess.ReadStdout(proc)
+    stderr = task.rpc.subprocess.ReadStderr(proc)
+    logging.info('retcode: %s, stdout: %s, stderr: %s', retcode, stdout, stderr)
+
+
+if __name__ == '__main__':
+  ExampleTestController().RunController()