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      1 # Copyright (C) 2010 Google Inc. All rights reserved.
      2 #
      3 # Redistribution and use in source and binary forms, with or without
      4 # modification, are permitted provided that the following conditions are
      5 # met:
      6 #
      7 #    * Redistributions of source code must retain the above copyright
      8 # notice, this list of conditions and the following disclaimer.
      9 #    * Redistributions in binary form must reproduce the above
     10 # copyright notice, this list of conditions and the following disclaimer
     11 # in the documentation and/or other materials provided with the
     12 # distribution.
     13 #    * Neither the name of Google Inc. nor the names of its
     14 # contributors may be used to endorse or promote products derived from
     15 # this software without specific prior written permission.
     16 #
     17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28 
     29 import unittest
     30 
     31 from webkitpy.common.thread.threadedmessagequeue import ThreadedMessageQueue
     32 
     33 class ThreadedMessageQueueTest(unittest.TestCase):
     34 
     35     def test_basic(self):
     36         queue = ThreadedMessageQueue()
     37         queue.post("Hello")
     38         queue.post("There")
     39         (messages, is_running) = queue.take_all()
     40         self.assertEqual(messages, ["Hello", "There"])
     41         self.assertTrue(is_running)
     42         (messages, is_running) = queue.take_all()
     43         self.assertEqual(messages, [])
     44         self.assertTrue(is_running)
     45         queue.post("More")
     46         queue.stop()
     47         queue.post("Messages")
     48         (messages, is_running) = queue.take_all()
     49         self.assertEqual(messages, ["More", "Messages"])
     50         self.assertFalse(is_running)
     51         (messages, is_running) = queue.take_all()
     52         self.assertEqual(messages, [])
     53         self.assertFalse(is_running)
     54