def testMultiThreadedCounterUpdates(self):
n = 250000 # perform this many increment/decrement/get operations per thread
c = Counter()
value = 1000000
c.set(value)
self.assertEqual(value, c.get())
threads = []
for i in range(8):
ops = ['+' for x in range(n)] + ['-' for x in range(n)
] + ['R' for x in range(n)]
random.shuffle(ops)
threads.append(
threading.Thread(target=self._updateThread, args=(c, ops)))
for t in threads:
t.start()
for t in threads:
t.join()
self.assertEqual(value, c.get())
def testDecrementValue(self):
c = Counter()
c.set(1)
c.decrement()
self.assertEqual(0, c.get())
def testIncrementValue(self):
c = Counter()
c.set(1)
c.increment()
self.assertEqual(2, c.get())
def testSetValue(self):
c = Counter()
c.set(1)
self.assertEqual(1, c.get())
def testDecrementNoneValue(self):
c = Counter()
c.decrement()
self.assertEqual(None, c.get())
def testInitSetsValueToNone(self):
c = Counter()
self.assertEqual(None, c.get())
