本文整理汇总了Python中qi.Promise类的典型用法代码示例。如果您正苦于以下问题：Python Promise类的具体用法？Python Promise怎么用？Python Promise使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了Promise类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_promise_re_set
def test_promise_re_set():
p = Promise()
p.setValue(42)
try:
p.setValue(42)
except RuntimeError:
pass示例2: test_future_wait
def test_future_wait():
p = Promise()
f = p.future()
threading.Thread(target=waitSetValue, args=[p, 0.1]).start()
assert f.isFinished() is False
assert f.value() == "mjolk"
assert f.isFinished() is True示例3: test_future_no_timeout
def test_future_no_timeout():
p = Promise()
f = p.future()
threading.Thread(target=waitSetValue, args=[p]).start()
# 1sec to be secure
assert f.value(timeout=1000) == "mjolk"
assert f.hasError() is False示例4: test_future_cancel_exception
def test_future_cancel_exception():
def throw(promise):
time.sleep(0.01)
raise Exception("plop")
p = Promise(throw)
f = p.future()
f.cancel()示例5: test_future_timeout_immediate
def test_future_timeout_immediate():
p = Promise()
f = p.future()
threading.Thread(target=waitSetValue, args=[p, 1]).start()
try:
f.value(timeout=0)
except RuntimeError:
pass示例6: test_many_futures_create
def test_many_futures_create():
def wait(p):
time.sleep(1)
p = Promise(wait)
fs = [p.future() for _ in range(100)]
p.setValue(1337)
for f in fs:
assert f.hasValue()
assert f.value() == 1337示例7: test_future_exception
def test_future_exception():
p = Promise()
f = p.future()
def raising(f):
raise Exception("oops")
f.addCallback(raising)
p.setValue(42)示例8: test_future_many_callback
def test_future_many_callback(nbr_fut = 10000):
def callback(f):
pass
for _ in range(nbr_fut):
p = Promise()
f = p.future()
f.addCallback(callback)
p.setValue(0)示例9: test_future_callback_noargs
def test_future_callback_noargs():
def callback():
pass
p = Promise()
f = p.future()
f.addCallback(callback)
p.setValue("segv?")
assert not f.isCanceled()
assert f.isFinished()示例10: test_future_timeout
def test_future_timeout():
p = Promise()
f = p.future()
threading.Thread(target=waitSetValue, args=[p, 1]).start()
try:
# 10ms - 3ms
f.value(timeout=8)
except RuntimeError:
pass
assert f.hasError() is False示例11: test_future_error
def test_future_error():
p = Promise()
p.setError("woops")
f = p.future()
assert f.hasError() is True
assert f.error() == "woops"
try:
f.value()
except RuntimeError:
pass示例12: test_future_andthen
def test_future_andthen():
def callback(v):
assert v == 1337
return 4242
p = Promise()
f = p.future()
f2 = f.andThen(callback)
p.setValue(1337)
f2.wait(1000)
assert f2.isFinished()
assert f2.value() == 4242示例13: test_future_then
def test_future_then():
def callback(f):
assert f.isRunning() is False
assert f.value() == 1337
return 4242
p = Promise()
f = p.future()
f2 = f.then(callback)
p.setValue(1337)
f2.wait(1000)
assert f2.isFinished()
assert f2.value() == 4242示例14: test_future_then_throw
def test_future_then_throw():
def callback(f):
assert f.isRunning() is False
assert f.value() == 1337
raise RuntimeError("lol")
p = Promise()
f = p.future()
f2 = f.then(callback)
p.setValue(1337)
f2.wait(1000)
assert f2.isFinished()
assert f2.error().endswith("RuntimeError: lol\n")示例15: test_future_unwrap_cancel
def test_future_unwrap_cancel():
prom = Promise()
future = prom.future().unwrap()
future.cancel()
assert prom.isCancelRequested()
nested = Promise()
prom.setValue(nested.future())
# TODO add some sync-ness to remove those time.sleep :(
time.sleep(0.1)
assert nested.isCancelRequested()
nested.setCanceled()
time.sleep(0.1)
assert future.isCanceled()