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##############################################################################
#
# Copyright (c) 2003 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Test the hookable support Extension
"""
import unittest
class PyHookableTests(unittest.TestCase):
def _callFUT(self, *args, **kw):
from zope.hookable import _py_hookable
return _py_hookable(*args, **kw)
def test_before_hook(self):
def _foo():
return 'FOO'
hooked = self._callFUT(_foo)
self.assertTrue(hooked.original is _foo)
self.assertTrue(hooked.implementation is _foo)
self.assertEqual(hooked(), 'FOO')
def test_after_hook(self):
def _foo():
return 'FOO'
def _bar():
return 'BAR'
hooked = self._callFUT(_foo)
old = hooked.sethook(_bar)
self.assertTrue(old is _foo)
self.assertTrue(hooked.original is _foo)
self.assertTrue(hooked.implementation is _bar)
self.assertEqual(hooked(), 'BAR')
def test_after_hook_and_reset(self):
def _foo():
return 'FOO'
def _bar():
return 'BAR'
hooked = self._callFUT(_foo)
old = hooked.sethook(_bar)
hooked.reset()
self.assertTrue(old is _foo)
self.assertTrue(hooked.original is _foo)
self.assertTrue(hooked.implementation is _foo)
self.assertEqual(hooked(), 'FOO')
def test_original_cannot_be_deleted(self):
def _foo():
return 'FOO'
hooked = self._callFUT(_foo)
def _try():
del hooked.original
self.assertRaises((TypeError, AttributeError), _try)
def test_implementation_cannot_be_deleted(self):
def _foo():
return 'FOO'
hooked = self._callFUT(_foo)
def _try():
del hooked.implementation
self.assertRaises((TypeError, AttributeError), _try)
def test_no_args(self):
self.assertRaises(TypeError, self._callFUT)
def test_too_many_args(self):
def _foo():
return 'FOO'
self.assertRaises(TypeError, self._callFUT, _foo, _foo)
def test_w_implementation_kwarg(self):
def _foo():
return 'FOO'
hooked = self._callFUT(implementation=_foo)
self.assertTrue(hooked.original is _foo)
self.assertTrue(hooked.implementation is _foo)
self.assertEqual(hooked(), 'FOO')
def test_w_unknown_kwarg(self):
def _foo():
return 'FOO'
self.assertRaises(TypeError, self._callFUT, nonesuch=_foo)
class HookableTests(PyHookableTests):
def _callFUT(self, *args, **kw):
from zope.hookable import hookable
return hookable(*args, **kw)
def test_suite():
return unittest.TestSuite((
unittest.makeSuite(PyHookableTests),
unittest.makeSuite(HookableTests),
))
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