def test_alreadyInstalled(self):
"""
If a reactor is already installed, L{installReactor} raises
L{ReactorAlreadyInstalledError}.
"""
with NoReactor():
installReactor(object())
self.assertRaises(ReactorAlreadyInstalledError, installReactor, object())
def test_installReactor(self):
"""
L{installReactor} installs a new reactor if none is present.
"""
with NoReactor():
newReactor = object()
installReactor(newReactor)
from twisted.internet import reactor
self.assertIs(newReactor, reactor)
def test_defaultReactor(self):
"""
L{twisted.internet.reactor} is used if no reactor argument is passed to
L{task.react}.
"""
def main(reactor):
self.passedReactor = reactor
return defer.succeed(None)
reactor = _FakeReactor()
with NoReactor():
installReactor(reactor)
exitError = self.assertRaises(SystemExit, task.react, main, [])
self.assertEqual(0, exitError.code)
self.assertIdentical(reactor, self.passedReactor)
def __enter__(self):
NoReactor.__enter__(self)
import twisted.internet
twisted.internet.reactor = self.alternate
sys.modules['twisted.internet.reactor'] = self.alternate
def __init__(self, reactor):
"""
@param reactor: Any object to install as the global reactor.
"""
NoReactor.__init__(self)
self.alternate = reactor
def __enter__(self):
NoReactor.__enter__(self)
import twisted.internet
twisted.internet.reactor = self.alternate
sys.modules['twisted.internet.reactor'] = self.alternate
def __init__(self, reactor):
"""
@param reactor: Any object to install as the global reactor.
"""
NoReactor.__init__(self)
self.alternate = reactor
