def test_exponential_counter__reset(self):
counter = ExponentialCounter(1024)
for _ in range(100):
value = counter.counter()
assert value >= 1 - self.MAX_DELTA
assert value <= 1 + self.MAX_DELTA
counter.reset()
def test_exponential_counter__counter(self):
def assert_range(number, exponent):
assert number >= 2**exponent * (1 - self.MAX_DELTA)
assert number <= 2**exponent * (1 + self.MAX_DELTA)
counter = ExponentialCounter(1024)
prev_value = counter.counter()
assert_range(prev_value, 0)
for i in range(9):
value = counter.counter()
assert_range(value, 1 + i)
assert value > prev_value
prev_value = value
def test_exponential_counter__max_value(self):
counter = ExponentialCounter(5)
max_value = 5 * (1 + self.MAX_DELTA)
for _ in range(100):
value = counter.counter()
assert value <= max_value