WebKitTools/Scripts/webkitpy/layout_tests/layout_package/message_broker_unittest.py

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  28
  29 import logging
  30 import Queue
  31 import sys
  32 import thread
  33 import threading
  34 import time
  35 import unittest
  36
  37 from webkitpy.common import array_stream
  38 from webkitpy.common.system import outputcapture
  39 from webkitpy.tool import mocktool
  40
  41 from webkitpy.layout_tests import run_webkit_tests
  42
  43 import message_broker
  44
  45 # FIXME: Boy do we need a lot more tests here ...
  46
  47
  48 class TestThreadStacks(unittest.TestCase):
  49     class Thread(threading.Thread):
  50         def __init__(self, started_queue, stopping_queue):
  51             threading.Thread.__init__(self)
  52             self._id = None
  53             self._started_queue = started_queue
  54             self._stopping_queue = stopping_queue
  55
  56         def id(self):
  57             return self._id
  58
  59         def name(self):
  60             return 'worker/0'
  61
  62         def run(self):
  63             self._id = thread.get_ident()
  64             self._started_queue.put('')
  65             msg = self._stopping_queue.get()
  66
  67     def make_broker(self):
  68         options = mocktool.MockOptions()
  69         return message_broker._MultiThreadedBroker(port=None,
  70                                                      options=options)
  71
  72     def test_find_thread_stack_found(self):
  73         broker = self.make_broker()
  74         id, stack = sys._current_frames().items()[0]
  75         found_stack = broker._find_thread_stack(id)
  76         self.assertNotEqual(found_stack, None)
  77
  78     def test_find_thread_stack_not_found(self):
  79         broker = self.make_broker()
  80         found_stack = broker._find_thread_stack(0)
  81         self.assertEqual(found_stack, None)
  82
  83     def test_log_wedged_worker(self):
  84         broker = self.make_broker()
  85         oc = outputcapture.OutputCapture()
  86         oc.capture_output()
  87
  88         starting_queue = Queue.Queue()
  89         stopping_queue = Queue.Queue()
  90         child_thread = TestThreadStacks.Thread(starting_queue, stopping_queue)
  91         child_thread.start()
  92         broker._threads[child_thread.name()] = child_thread
  93         msg = starting_queue.get()
  94
  95         broker.log_wedged_worker(child_thread.name())
  96         stopping_queue.put('')
  97         child_thread.join(timeout=1.0)
  98
  99         self.assertFalse(child_thread.isAlive())
 100         oc.restore_output()
 101
 102
 103 if __name__ == '__main__':
 104     unittest.main()