def notCrashySleepWithNonRootContext(self, sleepFor, parentCtx, **kwargs):
"""Sleeps for sleepFor seconds and then asserts that kwargs + parentCtx is the current context"""
expected = {}
expected.update(parentCtx)
expected.update(kwargs)
with context.set(**kwargs):
yield sleep(sleepFor)
self.assertEquals(expected, context.all())
def notCrashySleepWithNonRootContext(self, sleepFor, parentCtx, **kwargs):
"""Sleeps for sleepFor seconds and then asserts that kwargs + parentCtx is the current context"""
expected = {}
expected.update(parentCtx)
expected.update(kwargs)
with context.set(**kwargs):
yield sleep(sleepFor)
self.assertEquals(expected, context.all())
def testMaintainsNonRootContextAcrossUnyieldedDeferred(self):
"""Deferreds that exist at the same time under a parent context should not interfere and have that parent context"""
with context.set(parent=1):
a = self.notCrashySleepWithNonRootContext(0.01, {'parent': 1}, a=1)
b = self.notCrashySleepWithNonRootContext(0.001, {'parent': 1}, b=2)
yield sleep(0.02)
yield DeferredList([a, b])
def testMaintainsNonRootContextAcrossUnyieldedDeferred(self):
"""Deferreds that exist at the same time under a parent context should not interfere and have that parent context"""
with context.set(parent=1):
a = self.notCrashySleepWithNonRootContext(0.01, {'parent': 1}, a=1)
b = self.notCrashySleepWithNonRootContext(0.001, {'parent': 1},
b=2)
yield sleep(0.02)
yield DeferredList([a, b])
def testDoesntMingleContextAcrossUnyieldedDeferred(self):
"""Deferreds that exist at the same time should not have interacting contexts"""
self.assertFalse(context.has('a'))
self.assertFalse(context.has('b'))
a = self.notCrashySleep(0.01, a=1)
self.assertFalse(context.has('a'))
self.assertFalse(context.has('b'))
b = self.notCrashySleep(0.001, b=2)
self.assertFalse(context.has('a'))
self.assertFalse(context.has('b'))
yield sleep(0.02)
yield DeferredList([a, b])
def testDoesntMingleContextAcrossUnyieldedDeferred(self):
"""Deferreds that exist at the same time should not have interacting contexts"""
self.assertFalse(context.has('a'))
self.assertFalse(context.has('b'))
a = self.notCrashySleep(0.01, a=1)
self.assertFalse(context.has('a'))
self.assertFalse(context.has('b'))
b = self.notCrashySleep(0.001, b=2)
self.assertFalse(context.has('a'))
self.assertFalse(context.has('b'))
yield sleep(0.02)
yield DeferredList([a, b])
def testInlineCallbacks(self):
"""Test context saving across I/O."""
with thread.locals(someValue = 12345):
yield time.sleep(0.001)
self.assertEqual(None, thread.getLocal('anotherValue'))
self.assertEqual(12345, thread.getLocal('someValue'))
with thread.locals(anotherValue = 'abcde'):
yield client.getPage('http://greplin.com')
self.assertEqual('abcde', thread.getLocal('anotherValue'))
self.assertEqual(12345, thread.getLocal('someValue'))
yield threads.deferToThread(lambda: None)
self.assertEqual(None, thread.getLocal('anotherValue'))
self.assertEqual(12345, thread.getLocal('someValue'))
self.assertEqual(None, thread.getLocal('someValue'))
def countdown(i):
"""Countdown function to generate chained asynchronous calls."""
if not i:
reactor.stop()
return
print 'i is %d with frame %s' % (i, AsyncFrame.currentFrame.getName())
yield time.sleep(0.01)
print 'done sleeping with frame %s' % AsyncFrame.currentFrame.getName()
if i % 2:
nestAndPrint()
yield dispatchOdd(i - 1)
else:
print stacktrace()
yield dispatchEven(i - 1)
def testInlineCallbacks(self):
"""Test context saving across I/O."""
with context.set(someValue=12345):
yield time.sleep(0.001)
self.assertFalse(context.has('anotherValue'))
self.assertEqual(12345, context.get('someValue'))
self.assertTrue(context.has('someValue'))
with context.set(anotherValue='abcde'):
yield client.getPage('http://greplin.com')
self.assertEqual('abcde', context.get('anotherValue'))
self.assertEqual(12345, context.get('someValue'))
yield threads.deferToThread(lambda: None)
self.assertFalse(context.has('anotherValue'))
self.assertEqual(12345, context.get('someValue'))
self.assertTrue(context.has('someValue'))
self.assertFalse(context.has('someValue'))
def _deferSleepAndAppend(self, amount, message): """Runs a sleep in Twisted.""" yield time.sleep(amount) self._messages.append(message)
def notCrashySleep(self, sleepFor, **kwargs):
"""Sleeps for sleepFor seconds and asserts that kwargs is equal to the stored context variables"""
with context.set(**kwargs):
yield sleep(sleepFor)
self.assertEquals(kwargs, context.all())
def _deferSleepAndAppend(self, amount, message):
"""Runs a sleep in Twisted."""
yield time.sleep(amount)
self._messages.append(message)
def instantYields():
"""Simple asynchronous function that has instant results for a large number of yields."""
for i in xrange(1000):
yield i
yield time.sleep(0.01) # Make it actually async.
defer.returnValue('done')
def tupleReturn():
"""Simple asynchronous function that returns a tuple."""
yield time.sleep(0.01)
defer.returnValue((5, 'abc'))
def chained():
"""Simple asynchronous function that returns a value."""
result = yield time.sleep(0.01).addCallback(
lambda _: time.sleep(0.01).addCallback(lambda _: 3.14))
defer.returnValue(result)
def simpleAsyncMethod(self, value): """Simple asynchronous method that returns a given value.""" yield time.sleep(0.01) defer.returnValue(value)
def sleeper():
"""Simple asynchronous function that sleeps for a long time."""
yield time.sleep(100)
def testFromDelay(self):
"""Test saving context across a delayed call."""
with thread.locals(source = 'delay'):
return time.sleep(0.001).addCallback(lambda _: self.assertEqual('delay', thread.getLocal('source')))
def sleep(self):
"""Fake sleep by just returning right away."""
self.log.append('sleep')
return time.sleep(0)
def simple(): """Simple asynchronous function that returns a value.""" yield time.sleep(0.01) defer.returnValue(5)
def sleeper(): """Simple asynchronous function that sleeps for a long time.""" yield time.sleep(100)
def simple(): """Simple asynchronous function.""" yield time.sleep(0.01) defer.returnValue(200)
def notCrashySleep(self, sleepFor, **kwargs):
"""Sleeps for sleepFor seconds and asserts that kwargs is equal to the stored context variables"""
with context.set(**kwargs):
yield sleep(sleepFor)
self.assertEquals(kwargs, context.all())
def chained(): """Simple asynchronous function that returns a value.""" result = yield time.sleep(0.01).addCallback(lambda _: time.sleep(0.01).addCallback(lambda _: 3.14)) defer.returnValue(result)
def simple():
"""Simple asynchronous function that returns a value."""
yield time.sleep(0.01)
defer.returnValue(5)
def sleep(self):
"""Fake sleep by just returning right away."""
self.log.append('sleep')
return time.sleep(0)
def tupleReturn(): """Simple asynchronous function that returns a tuple.""" yield time.sleep(0.01) defer.returnValue((5, 'abc'))
def testFromDelay(self):
"""Test saving context across a delayed call."""
with context.set(source='delay'):
return time.sleep(0.001).addCallback(
lambda _: self.assertEqual('delay', context.get('source')))
def instantYields():
"""Simple asynchronous function that has instant results for a large number of yields."""
for i in xrange(1000):
yield i
yield time.sleep(0.01) # Make it actually async.
defer.returnValue('done')
