def testContextIsRestoredWhenExceptionsThrown(self):
"""
When an error occurs in a deferred, context should be restored appropriately
This test has a follow up that imposes an ordering requirement based on method name.
"""
self.assertFalse(context.has('foo'))
try:
with context.set(foo='bar'):
self.assert_(context.has('foo'))
yield threads.deferToThread(self.crashy)
except AssertionError:
pass
self.assertFalse(context.has('foo'))
def testContextIsRestoredWhenExceptionsThrown(self):
"""
When an error occurs in a deferred, context should be restored appropriately
This test has a follow up that imposes an ordering requirement based on method name.
"""
self.assertFalse(context.has('foo'))
try:
with context.set(foo='bar'):
self.assert_(context.has('foo'))
yield threads.deferToThread(self.crashy)
except AssertionError:
pass
self.assertFalse(context.has('foo'))
def testSettingGettingAndHavingContext(self):
"""Should be able to set context, get it, and check for membership"""
self.assertRaises(KeyError, context.get, 'foo')
with context.set(foo='bar'):
self.assertEquals('bar', context.get('foo'))
self.assertFalse(context.has('foo'))
def testSettingGettingAndHavingContext(self):
"""Should be able to set context, get it, and check for membership"""
self.assertRaises(KeyError, context.get, 'foo')
with context.set(foo='bar'):
self.assertEquals('bar', context.get('foo'))
self.assertFalse(context.has('foo'))
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 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 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])