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import unittest

from webkitpy.common.thread.threadedmessagequeue import ThreadedMessageQueue

class ThreadedMessageQueueTest(unittest.TestCase):

    def test_basic(self):
        queue = ThreadedMessageQueue()
        queue.post("Hello")
        queue.post("There")
        (messages, is_running) = queue.take_all()
        self.assertEqual(messages, ["Hello", "There"])
        self.assertTrue(is_running)
        (messages, is_running) = queue.take_all()
        self.assertEqual(messages, [])
        self.assertTrue(is_running)
        queue.post("More")
        queue.stop()
        queue.post("Messages")
        (messages, is_running) = queue.take_all()
        self.assertEqual(messages, ["More", "Messages"])
        self.assertFalse(is_running)
        (messages, is_running) = queue.take_all()
        self.assertEqual(messages, [])
        self.assertFalse(is_running)