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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 interface declarations against ExtensionClass-like classes.
These tests are to make sure we do something sane in the presence of
classic ExtensionClass classes and instances.
$Id: test_odd_declarations.py 105433 2009-11-02 08:33:25Z ctheune $
"""
import unittest, odd
from zope.interface import Interface, implements, implementsOnly
from zope.interface import directlyProvides, providedBy, directlyProvidedBy
from zope.interface import classImplements, classImplementsOnly, implementedBy
class I1(Interface): pass
class I2(Interface): pass
class I3(Interface): pass
class I31(I3): pass
class I4(Interface): pass
class I5(Interface): pass
class Odd(object): __metaclass__ = odd.MetaClass
class B(Odd): __implemented__ = I2
# TODO: We are going to need more magic to make classProvides work with odd
# classes. This will work in the next iteration. For now, we'll use
# a different mechanism.
# from zope.interface import classProvides
class A(Odd):
implements(I1)
class C(A, B):
implements(I31)
class Test(unittest.TestCase):
def test_ObjectSpecification(self):
c = C()
directlyProvides(c, I4)
self.assertEqual([i.getName() for i in providedBy(c)],
['I4', 'I31', 'I1', 'I2']
)
self.assertEqual([i.getName() for i in providedBy(c).flattened()],
['I4', 'I31', 'I3', 'I1', 'I2', 'Interface']
)
self.assert_(I1 in providedBy(c))
self.failIf(I3 in providedBy(c))
self.assert_(providedBy(c).extends(I3))
self.assert_(providedBy(c).extends(I31))
self.failIf(providedBy(c).extends(I5))
class COnly(A, B):
implementsOnly(I31)
class D(COnly):
implements(I5)
classImplements(D, I5)
c = D()
directlyProvides(c, I4)
self.assertEqual([i.getName() for i in providedBy(c)],
['I4', 'I5', 'I31'])
self.assertEqual([i.getName() for i in providedBy(c).flattened()],
['I4', 'I5', 'I31', 'I3', 'Interface'])
self.failIf(I1 in providedBy(c))
self.failIf(I3 in providedBy(c))
self.assert_(providedBy(c).extends(I3))
self.failIf(providedBy(c).extends(I1))
self.assert_(providedBy(c).extends(I31))
self.assert_(providedBy(c).extends(I5))
class COnly(A, B): __implemented__ = I31
class D(COnly):
implements(I5)
classImplements(D, I5)
c = D()
directlyProvides(c, I4)
self.assertEqual([i.getName() for i in providedBy(c)],
['I4', 'I5', 'I31'])
self.assertEqual([i.getName() for i in providedBy(c).flattened()],
['I4', 'I5', 'I31', 'I3', 'Interface'])
self.failIf(I1 in providedBy(c))
self.failIf(I3 in providedBy(c))
self.assert_(providedBy(c).extends(I3))
self.failIf(providedBy(c).extends(I1))
self.assert_(providedBy(c).extends(I31))
self.assert_(providedBy(c).extends(I5))
def test_classImplements(self):
class A(Odd):
implements(I3)
class B(Odd):
implements(I4)
class C(A, B):
pass
classImplements(C, I1, I2)
self.assertEqual([i.getName() for i in implementedBy(C)],
['I1', 'I2', 'I3', 'I4'])
classImplements(C, I5)
self.assertEqual([i.getName() for i in implementedBy(C)],
['I1', 'I2', 'I5', 'I3', 'I4'])
def test_classImplementsOnly(self):
class A(Odd):
implements(I3)
class B(Odd):
implements(I4)
class C(A, B):
pass
classImplementsOnly(C, I1, I2)
self.assertEqual([i.__name__ for i in implementedBy(C)],
['I1', 'I2'])
def test_directlyProvides(self):
class IA1(Interface): pass
class IA2(Interface): pass
class IB(Interface): pass
class IC(Interface): pass
class A(Odd):
implements(IA1, IA2)
class B(Odd):
implements(IB)
class C(A, B):
implements(IC)
ob = C()
directlyProvides(ob, I1, I2)
self.assert_(I1 in providedBy(ob))
self.assert_(I2 in providedBy(ob))
self.assert_(IA1 in providedBy(ob))
self.assert_(IA2 in providedBy(ob))
self.assert_(IB in providedBy(ob))
self.assert_(IC in providedBy(ob))
directlyProvides(ob, directlyProvidedBy(ob)-I2)
self.assert_(I1 in providedBy(ob))
self.failIf(I2 in providedBy(ob))
self.failIf(I2 in providedBy(ob))
directlyProvides(ob, directlyProvidedBy(ob), I2)
self.assert_(I2 in providedBy(ob))
def test_directlyProvides_fails_for_odd_class(self):
self.assertRaises(TypeError, directlyProvides, C, I5)
# see above
def TODO_test_classProvides_fails_for_odd_class(self):
try:
class A(Odd):
classProvides(I1)
except TypeError:
pass # Sucess
self.assert_(False,
"Shouldn't be able to use directlyProvides on odd class."
)
def test_implementedBy(self):
class I2(I1): pass
class C1(Odd):
implements(I2)
class C2(C1):
implements(I3)
self.assertEqual([i.getName() for i in implementedBy(C2)],
['I3', 'I2'])
def test_suite():
from zope.testing import doctest
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(Test))
suite.addTest(doctest.DocTestSuite(odd))
return suite
if __name__ == '__main__':
unittest.main()
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