text: # Copyright (c) 2008 AG Projects
  # Author: Denis Bilenko
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  # THE SOFTWARE.
  
  import greentest
  import gevent
  from gevent import util, socket
  
  DELAY = 0.1
  
  
  class Test(greentest.TestCase):
  
      def test_killing_dormant(self):
          state = []
  
          def test():
              try:
                  state.append('start')
                  gevent.sleep(DELAY)
              except:
                  state.append('except')
                  # catching GreenletExit
                  pass
              state.append('finished')
  
          g = gevent.spawn(test)
          gevent.sleep(DELAY / 2)
          assert state == ['start'], state
          g.kill()
          # will not get there, unless switching is explicitly scheduled by kill
          assert state == ['start', 'except', 'finished'], state
  
      def test_nested_with_timeout(self):
          def func():
              return gevent.with_timeout(0.2, gevent.sleep, 2, timeout_value=1)
          self.assertRaises(gevent.Timeout, gevent.with_timeout, 0.1, func)
  
      def test_sleep_invalid_switch(self):
          p = gevent.spawn(util.wrap_errors(AssertionError, gevent.sleep), 2)
          gevent.sleep(0)  # wait for p to start, because actual order of switching is reversed
          switcher = gevent.spawn(p.switch, None)
          result = p.get()
          assert isinstance(result, AssertionError), result
          assert 'Invalid switch' in str(result), repr(str(result))
          switcher.kill()
  
      def test_wait_read_invalid_switch(self):
          sock = socket.socket()
          p = gevent.spawn(util.wrap_errors(AssertionError, socket.wait_read), sock.fileno())
          gevent.sleep(0)
          switcher = gevent.spawn(p.switch, None)
          result = p.get()
          assert isinstance(result, AssertionError), result
          assert 'Invalid switch' in str(result), repr(str(result))
          switcher.kill()
  
      def test_wait_write_invalid_switch(self):
          sock = socket.socket()
          p = gevent.spawn(util.wrap_errors(AssertionError, socket.wait_write), sock.fileno())
          gevent.sleep(0)
          switcher = gevent.spawn(p.switch, None)
          result = p.get()
          assert isinstance(result, AssertionError), result
          assert 'Invalid switch' in str(result), repr(str(result))
          switcher.kill()
  
  
  class TestTimers(greentest.TestCase):
  
      def test_timer_fired(self):
          lst = [1]
  
          def func():
              gevent.spawn_later(0.01, lst.pop)
              gevent.sleep(0.02)
  
          gevent.spawn(func)
          assert lst == [1], lst
          gevent.sleep(0.03)
          assert lst == [], lst
  
      def test_spawn_is_not_cancelled(self):
          lst = [1]
  
          def func():
              gevent.spawn(lst.pop)
              # exiting immediatelly, but self.lst.pop must be called
          gevent.spawn(func)
          gevent.sleep(0.01)
          assert lst == [], lst
  
  
  if __name__ == '__main__':
      greentest.main()
  