import threading
import time
import unittest
from test import test_support

class Thread(threading.Thread):
	def __init__(self):
		threading.Thread.__init__(self)
		self._stop = False
		self.ready = threading.Event()

	def stop(self):
		self._stop = True
		self.join()

	def run(self):
		self.ready.set()
		while not self._stop:
			time.sleep(0.5)

class LeakTests(unittest.TestCase):
	def test_leak(self):
		def foo():
			raise RuntimeError("foo")
		self.assertRaises(RuntimeError, foo)

	def setUp(self):
		self._thread = Thread()
		self._thread.start()
		self._thread.ready.wait()

	def tearDown(self):
		self._thread.stop()

def test_main():
	test_support.run_unittest(LeakTests)

if __name__ == "__main__":
	test_main()