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##############################################################################
#
# Copyright (c) 2012 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.
#
##############################################################################
"""Pure-Python hookable tests
"""
import unittest
from zope.component.tests import fails_if_called
class HookableTests(unittest.TestCase):
def test_ctor_no_func(self):
from zope.component.hookable import hookable
self.assertRaises(TypeError, hookable)
def test_ctor_simple(self):
from zope.component.hookable import hookable
foo = fails_if_called(self)
hooked = hookable(foo)
self.assertTrue(hooked.original is foo)
self.assertTrue(hooked.implementation is foo)
def test_ctor_extra_arg(self):
from zope.component.hookable import hookable
foo = fails_if_called(self)
self.assertRaises(TypeError, hookable, foo, foo)
def test_ctor_extra_arg_miss(self):
from zope.component.hookable import hookable
foo = fails_if_called(self)
self.assertRaises(TypeError, hookable, foo, nonesuch=foo)
def test_sethook(self):
from zope.component.hookable import hookable
foo = fails_if_called(self)
bar = fails_if_called(self)
hooked = hookable(foo)
hooked.sethook(bar)
self.assertTrue(hooked.original is foo)
self.assertTrue(hooked.implementation is bar)
def test_reset(self):
from zope.component.hookable import hookable
foo = fails_if_called(self)
bar = fails_if_called(self)
hooked = hookable(foo)
hooked.sethook(bar)
hooked.reset()
self.assertTrue(hooked.original is foo)
self.assertTrue(hooked.implementation is foo)
def test_cant_assign_original(self):
from zope.component.hookable import hookable
foo = fails_if_called(self)
bar = fails_if_called(self)
hooked = hookable(foo)
with self.assertRaises((TypeError, AttributeError)):
hooked.original = bar
def test_cant_delete_original(self):
from zope.component.hookable import hookable
foo = fails_if_called(self)
hooked = hookable(foo)
with self.assertRaises((TypeError, AttributeError)):
del hooked.original
def test_cant_assign_implementation(self):
from zope.component.hookable import hookable
foo = fails_if_called(self)
bar = fails_if_called(self)
hooked = hookable(foo)
with self.assertRaises((TypeError, AttributeError)):
hooked.implementation = bar
def test_cant_delete_implementation(self):
from zope.component.hookable import hookable
foo = fails_if_called(self)
hooked = hookable(foo)
with self.assertRaises((TypeError, AttributeError)):
del hooked.implementation
def test_ctor___call__(self):
from zope.component.hookable import hookable
_called = []
def foo(*args, **kw):
_called.append((args, kw))
hooked = hookable(foo)
hooked('one', 'two', bar='baz')
self.assertEqual(_called, [(('one', 'two'), {'bar': 'baz'})])
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