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##############################################################################
#
# Copyright (c) 2001, 2002 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.
#
##############################################################################
"""Interface Verify tests
"""
import doctest
import unittest
from zope.interface import Interface, implements, classImplements, Attribute
from zope.interface.verify import verifyClass, verifyObject
from zope.interface.exceptions import DoesNotImplement, BrokenImplementation
from zope.interface.exceptions import BrokenMethodImplementation
class Test(unittest.TestCase):
def testNotImplemented(self):
class C(object): pass
class I(Interface): pass
self.assertRaises(DoesNotImplement, verifyClass, I, C)
classImplements(C, I)
verifyClass(I, C)
def testMissingAttr(self):
class I(Interface):
def f(): pass
class C(object):
implements(I)
self.assertRaises(BrokenImplementation, verifyClass, I, C)
C.f=lambda self: None
verifyClass(I, C)
def testMissingAttr_with_Extended_Interface(self):
class II(Interface):
def f():
pass
class I(II):
pass
class C(object):
implements(I)
self.assertRaises(BrokenImplementation, verifyClass, I, C)
C.f=lambda self: None
verifyClass(I, C)
def testWrongArgs(self):
class I(Interface):
def f(a): pass
class C(object):
def f(self, b): pass
implements(I)
# We no longer require names to match.
#self.assertRaises(BrokenMethodImplementation, verifyClass, I, C)
C.f=lambda self, a: None
verifyClass(I, C)
C.f=lambda self, **kw: None
self.assertRaises(BrokenMethodImplementation, verifyClass, I, C)
C.f=lambda self, a, *args: None
verifyClass(I, C)
C.f=lambda self, a, *args, **kw: None
verifyClass(I, C)
C.f=lambda self, *args: None
verifyClass(I, C)
def testExtraArgs(self):
class I(Interface):
def f(a): pass
class C(object):
def f(self, a, b): pass
implements(I)
self.assertRaises(BrokenMethodImplementation, verifyClass, I, C)
C.f=lambda self, a: None
verifyClass(I, C)
C.f=lambda self, a, b=None: None
verifyClass(I, C)
def testNoVar(self):
class I(Interface):
def f(a, *args): pass
class C(object):
def f(self, a): pass
implements(I)
self.assertRaises(BrokenMethodImplementation, verifyClass, I, C)
C.f=lambda self, a, *foo: None
verifyClass(I, C)
def testNoKW(self):
class I(Interface):
def f(a, **args): pass
class C(object):
def f(self, a): pass
implements(I)
self.assertRaises(BrokenMethodImplementation, verifyClass, I, C)
C.f=lambda self, a, **foo: None
verifyClass(I, C)
def testModule(self):
from zope.interface.tests.ifoo import IFoo
from zope.interface.tests import dummy
verifyObject(IFoo, dummy)
def testMethodForAttr(self):
class IFoo(Interface):
foo = Attribute("The foo Attribute")
class Foo:
implements(IFoo)
def foo(self):
pass
verifyClass(IFoo, Foo)
def testNonMethodForMethod(self):
class IBar(Interface):
def foo():
pass
class Bar:
implements(IBar)
foo = 1
self.assertRaises(BrokenMethodImplementation, verifyClass, IBar, Bar)
def test_suite():
loader=unittest.TestLoader()
return unittest.TestSuite((
doctest.DocFileSuite(
'../verify.txt',
optionflags=doctest.NORMALIZE_WHITESPACE),
loader.loadTestsFromTestCase(Test),
))
if __name__=='__main__':
unittest.TextTestRunner().run(test_suite())
|
