def testMul2(self):
bi = simpleBackoffIterator(now=False,
initDelay=1.0,
incFunc=partial(mul, 2.0),
maxDelay=10.0,
maxResults=10)
self.assertEqual(1.0, bi.next())
self.assertEqual(2.0, bi.next())
self.assertEqual(4.0, bi.next())
def testAdd3(self):
bi = simpleBackoffIterator(now=False,
initDelay=2.0,
incFunc=partial(add, 3.0),
maxDelay=10.0,
maxResults=10)
self.assertEqual(2.0, bi.next())
self.assertEqual(5.0, bi.next())
self.assertEqual(8.0, bi.next())
def testConstant(self):
n = 10
constant = 5.0
initDelay = 3.0
bi = simpleBackoffIterator(now=False,
initDelay=initDelay,
incFunc=lambda _: constant,
maxDelay=10.0,
maxResults=n + 1)
self.assertEqual(initDelay, bi.next())
for _ in range(n):
self.assertEqual(constant, bi.next())
def testMaxResults(self):
maxResults = 12
bi = simpleBackoffIterator(now=False, maxResults=maxResults)
for _ in range(maxResults):
bi.next()
self.assertRaises(StopIteration, bi.next)
def testDefaultSettingsNoNegativeDelays(self):
bi = simpleBackoffIterator()
for delay in bi:
self.assertTrue(delay >= 0.0)
def testDefaultSettingsEventuallyHalt(self):
bi = simpleBackoffIterator()
for delay in bi:
pass
def testInitDelay(self):
initDelay = 7
bi = simpleBackoffIterator(now=False, initDelay=initDelay,
maxDelay=initDelay + 1)
delay = bi.next()
self.assertEqual(initDelay, delay)
def testNotNow(self):
bi = simpleBackoffIterator(now=False, initDelay=3.0)
delay = bi.next()
self.assertNotEqual(0.0, delay)
def testNow(self):
bi = simpleBackoffIterator(now=True, initDelay=9)
delay = bi.next()
self.assertEqual(0.0, delay)