import unittest

class _SilencePy3Deprecations(unittest.TestCase):
# silence deprecation warnings under py3

def failUnless(self, expr):
# St00pid speling.
return self.assertTrue(expr)

def failIf(self, expr):
# St00pid speling.
return self.assertFalse(expr)


class _ConformsToIObjectEvent(object):

def _makeOne(self, target=None):
if target is None:
target = object()
return self._getTargetClass()(target)

def test_class_conforms_to_IObjectEvent(self):
from zope.interface.interfaces import IObjectEvent
from zope.interface.verify import verifyClass
verifyClass(IObjectEvent, self._getTargetClass())

def test_instance_conforms_to_IObjectEvent(self):
from zope.interface.interfaces import IObjectEvent
from zope.interface.verify import verifyObject
verifyObject(IObjectEvent, self._makeOne())


class _ConformsToIRegistrationEvent(_ConformsToIObjectEvent):

def test_class_conforms_to_IRegistrationEvent(self):
from zope.interface.interfaces import IRegistrationEvent
from zope.interface.verify import verifyClass
verifyClass(IRegistrationEvent, self._getTargetClass())

def test_instance_conforms_to_IRegistrationEvent(self):
from zope.interface.interfaces import IRegistrationEvent
from zope.interface.verify import verifyObject
verifyObject(IRegistrationEvent, self._makeOne())


class ObjectEventTests(_SilencePy3Deprecations, _ConformsToIObjectEvent):

def _getTargetClass(self):
from zope.interface.interfaces import ObjectEvent
return ObjectEvent

def test_ctor(self):
target = object()
event = self._makeOne(target)
self.failUnless(event.object is target)


class RegistrationEventTests(_SilencePy3Deprecations,
_ConformsToIRegistrationEvent):

def _getTargetClass(self):
from zope.interface.interfaces import RegistrationEvent
return RegistrationEvent

def test___repr__(self):
target = object()
event = self._makeOne(target)
r = repr(event)
self.assertEqual(r.splitlines(),
['RegistrationEvent event:', repr(target)])


class RegisteredTests(_SilencePy3Deprecations,
_ConformsToIRegistrationEvent):

def _getTargetClass(self):
from zope.interface.interfaces import Registered
return Registered

def test_class_conforms_to_IRegistered(self):
from zope.interface.interfaces import IRegistered
from zope.interface.verify import verifyClass
verifyClass(IRegistered, self._getTargetClass())

def test_instance_conforms_to_IRegistered(self):
from zope.interface.interfaces import IRegistered
from zope.interface.verify import verifyObject
verifyObject(IRegistered, self._makeOne())


class UnregisteredTests(_SilencePy3Deprecations,
_ConformsToIRegistrationEvent):

def _getTargetClass(self):
from zope.interface.interfaces import Unregistered
return Unregistered

def test_class_conforms_to_IUnregistered(self):
from zope.interface.interfaces import IUnregistered
from zope.interface.verify import verifyClass
verifyClass(IUnregistered, self._getTargetClass())

def test_instance_conforms_to_IUnregistered(self):
from zope.interface.interfaces import IUnregistered
from zope.interface.verify import verifyObject
verifyObject(IUnregistered, self._makeOne())


def test_suite():
return unittest.TestSuite((
unittest.makeSuite(ObjectEventTests),
unittest.makeSuite(RegistrationEventTests),
unittest.makeSuite(RegisteredTests),
unittest.makeSuite(UnregisteredTests),
))