def test_backoff(self):
        """ Backoff is computed correctly """
        max_backoff = Retry.BACKOFF_MAX

        retry = Retry(total=100, backoff_factor=0.2)
        self.assertEqual(retry.get_backoff_time(), 0)  # First request

        retry = retry.increment()
        self.assertEqual(retry.get_backoff_time(), 0)  # First retry

        retry = retry.increment()
        self.assertEqual(retry.backoff_factor, 0.2)
        self.assertEqual(retry.total, 98)
        self.assertEqual(retry.get_backoff_time(), 0.4)  # Start backoff

        retry = retry.increment()
        self.assertEqual(retry.get_backoff_time(), 0.8)

        retry = retry.increment()
        self.assertEqual(retry.get_backoff_time(), 1.6)

        for i in xrange(10):
            retry = retry.increment()

        self.assertEqual(retry.get_backoff_time(), max_backoff)
    def test_backoff(self):
        """ Backoff is computed correctly """
        max_backoff = Retry.BACKOFF_MAX

        retry = Retry(total=100, backoff_factor=0.2)
        self.assertEqual(retry.get_backoff_time(), 0) # First request

        retry = retry.increment()
        self.assertEqual(retry.get_backoff_time(), 0) # First retry

        retry = retry.increment()
        self.assertEqual(retry.backoff_factor, 0.2)
        self.assertEqual(retry.total, 98)
        self.assertEqual(retry.get_backoff_time(), 0.4) # Start backoff

        retry = retry.increment()
        self.assertEqual(retry.get_backoff_time(), 0.8)

        retry = retry.increment()
        self.assertEqual(retry.get_backoff_time(), 1.6)

        for i in xrange(10):
            retry = retry.increment()

        self.assertEqual(retry.get_backoff_time(), max_backoff)
 def test_zero_backoff(self):
     retry = Retry()
     self.assertEqual(retry.get_backoff_time(), 0)
     retry = retry.increment()
     retry = retry.increment()
     self.assertEqual(retry.get_backoff_time(), 0)
 def test_zero_backoff(self):
     retry = Retry()
     self.assertEqual(retry.get_backoff_time(), 0)
     retry = retry.increment()
     retry = retry.increment()
     self.assertEqual(retry.get_backoff_time(), 0)