text: # -*- coding: utf-8 -*-
  # Copyright 2014-2016 OpenMarket Ltd
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  from tests import unittest
  
  from tests.utils import MockClock
  
  
  class MockClockTestCase(unittest.TestCase):
  
      def setUp(self):
          self.clock = MockClock()
  
      def test_advance_time(self):
          start_time = self.clock.time()
  
          self.clock.advance_time(20)
  
          self.assertEquals(20, self.clock.time() - start_time)
  
      def test_later(self):
          invoked = [0, 0]
  
          def _cb0():
              invoked[0] = 1
          self.clock.call_later(10, _cb0)
  
          def _cb1():
              invoked[1] = 1
          self.clock.call_later(20, _cb1)
  
          self.assertFalse(invoked[0])
  
          self.clock.advance_time(15)
  
          self.assertTrue(invoked[0])
          self.assertFalse(invoked[1])
  
          self.clock.advance_time(5)
  
          self.assertTrue(invoked[1])
  
      def test_cancel_later(self):
          invoked = [0, 0]
  
          def _cb0():
              invoked[0] = 1
          t0 = self.clock.call_later(10, _cb0)
  
          def _cb1():
              invoked[1] = 1
          self.clock.call_later(20, _cb1)
  
          self.clock.cancel_call_later(t0)
  
          self.clock.advance_time(30)
  
          self.assertFalse(invoked[0])
          self.assertTrue(invoked[1])
  