def testBindPortNumberGiven(self):
port, close = attemptBinding(bindPort=0); close()
PortNumberGenerator.bind(port=port)
self.assertNotBound(bindV4(ip='127.0.0.1', port=port, protocol='tcp', reuse=True))
if has_dual_stack():
self.assertNotBound(bindV6(ip='::1', port=port, protocol='tcp', reuse=True))
PortNumberGenerator.unbind(port=port)
self.assertBoundAndUnbind(bindV4(ip='127.0.0.1', port=port, protocol='tcp', reuse=True))
if has_dual_stack():
self.assertBoundAndUnbind(bindV6(ip='::1', port=port, protocol='tcp', reuse=True))
def testBindPortNumberGiven(self):
port, close = attemptBinding(bindPort=0)
close()
PortNumberGenerator.bind(port=port)
self.assertNotBound(
bindV4(ip='127.0.0.1', port=port, protocol='tcp', reuse=True))
if has_dual_stack():
self.assertNotBound(
bindV6(ip='::1', port=port, protocol='tcp', reuse=True))
PortNumberGenerator.unbind(port=port)
self.assertBoundAndUnbind(
bindV4(ip='127.0.0.1', port=port, protocol='tcp', reuse=True))
if has_dual_stack():
self.assertBoundAndUnbind(
bindV6(ip='::1', port=port, protocol='tcp', reuse=True))
def testBindPortNumberGivenKeepsOldUsedPortsOnFailure(self):
port1 = PortNumberGenerator.next()
port2 = PortNumberGenerator.next(blockSize=2)
port3 = port2 + 1
PortNumberGenerator.bind(port3)
# Overlap with already bind port: port3.
self.assertEqual(set([port1, port2, port3]),
PortNumberGenerator._usedPorts)
self.assertEqual(set([port3]), set(PortNumberGenerator._bound.keys()))
try:
PortNumberGenerator.bind(port2, blockSize=2)
except RuntimeError as e:
self.assertEqual('Port(s) already bound', str(e))
else:
self.fail()
self.assertEqual(set([port1, port2, port3]),
PortNumberGenerator._usedPorts)
self.assertEqual(set([port3]), set(PortNumberGenerator._bound.keys()))
# Overlap with bound port: port3.
PortNumberGenerator.unbind(port=port3)
_port, close = attemptBinding(bindPort=port3)
self.assertTrue(_port)
self.assertEqual(set(), set(PortNumberGenerator._bound.keys()))
try:
PortNumberGenerator.bind(port2, blockSize=2)
except RuntimeError as e:
self.assertEqual('Port(s) are not free!', str(e))
else:
self.fail()
self.assertEqual(set([port1, port2, port3]),
PortNumberGenerator._usedPorts)
self.assertEqual(set(), set(PortNumberGenerator._bound.keys()))
close() # Cleanup
