def __init__(self, func, wait, max_wait=False):
self.func = func
self.wait = wait
self.max_wait = max_wait
self.last_result = None
# Initialize last_* times to be prior to the wait periods so that func
# is primed to be executed on first call.
self.last_call = pyd.now() - self.wait
self.last_execution = pyd.now() - max_wait if pyd.is_number(
max_wait) else None
def __init__(self, func, wait, max_wait=False):
self.func = func
self.wait = wait
self.max_wait = max_wait
self.last_result = None
# Initialize last_* times to be prior to the wait periods so that func
# is primed to be executed on first call.
self.last_call = pyd.now() - self.wait
self.last_execution = (pyd.now() - max_wait if pyd.is_number(max_wait)
else None)
def test_debounce_max_wait():
def func(): return _.now()
wait = 250
max_wait = 300
debounced = _.debounce(func, wait, max_wait=max_wait)
start = _.now()
present = _.now()
expected = debounced()
while (present - start) <= (max_wait + 5):
result = debounced()
present = _.now()
assert result > expected
def test_debounce_max_wait():
def func():
return _.now()
wait = 250
max_wait = 300
debounced = _.debounce(func, wait, max_wait=max_wait)
start = _.now()
present = _.now()
expected = debounced()
while (present - start) <= (max_wait + 5):
result = debounced()
present = _.now()
assert result > expected
def test_throttle():
def func(): return _.now()
wait = 250
throttled = _.throttle(func, wait)
start = _.now()
present = _.now()
expected = throttled()
while (present - start) < (wait - 50):
result = throttled()
present = _.now()
assert result == expected
time.sleep(100 / 1000.0)
assert throttled() > expected
def test_throttle():
def func():
return _.now()
wait = 250
throttled = _.throttle(func, wait)
start = _.now()
present = _.now()
expected = throttled()
while (present - start) < (wait - 50):
result = throttled()
present = _.now()
assert result == expected
time.sleep(100 / 1000.0)
assert throttled() > expected
def __call__(self, *args, **kargs):
"""Execute :attr:`func` if function hasn't been called witinin last
:attr:`wait` milliseconds. Return results of last successful call.
"""
present = pyd.now()
if (present - self.last_execution) >= self.wait:
self.last_result = self.func(*args, **kargs)
self.last_execution = present
return self.last_result
def test_debounce():
def func(): return _.now()
wait = 250
debounced = _.debounce(func, wait)
start = _.now()
present = _.now()
expected = debounced()
while (present - start) <= wait + 100:
result = debounced()
present = _.now()
assert result == expected
time.sleep(wait / 1000.0)
result = debounced()
assert result > expected
def test_debounce():
def func():
return _.now()
wait = 250
debounced = _.debounce(func, wait)
start = _.now()
present = _.now()
expected = debounced()
while (present - start) <= wait + 100:
result = debounced()
present = _.now()
assert result == expected
time.sleep(wait / 1000.0)
result = debounced()
assert result > expected
def func(): return _.now()
wait = 250
def test_now():
present = int(time.time() * 1000)
# Add some leeway when comparing time.
assert (present - 1) <= _.now() <= (present + 1)
def __init__(self, func, wait):
self.func = func
self.wait = wait
self.last_result = None
self.last_execution = pyd.now() - self.wait
def func():
return _.now()
def test_now():
present = int(time.time() * 1000)
# Add some leeway when comparing time.
assert (present - 1) <= _.now() <= (present + 1)
def __init__(self, func, wait):
self.func = func
self.wait = wait
self.last_result = None
self.last_execution = pyd.now() - self.wait
def func():
return _.now()
