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✏️ Editing: test_factory.py

##############################################################################
#
# 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.
#
##############################################################################
"""Tests for z.c.factory
"""
import unittest

class FactoryTests(unittest.TestCase):

def _getTargetClass(self):
        from zope.component.factory import Factory
        return Factory

def _makeOne(self, callable=None, *args, **kw):
        if callable is None:
            callable = _test_callable
        return self._getTargetClass()(callable, *args, **kw)

def test_class_conforms_to_IFactory(self):
        from zope.interface.verify import verifyClass
        from zope.component.interfaces import IFactory
        verifyClass(IFactory, self._getTargetClass())

def test_instance_conforms_to_IFactory(self):
        from zope.interface.verify import verifyObject
        from zope.component.interfaces import IFactory
        verifyObject(IFactory, self._makeOne())

def test_ctor_defaults(self):
        factory = self._makeOne()
        self.assertEqual(factory._callable, _test_callable)
        self.assertEqual(factory.title, '')
        self.assertEqual(factory.description, '')
        self.assertEqual(factory._interfaces, None)

def test_ctor_expclit(self):
        factory = self._makeOne(_test_callable, 'TITLE', 'DESCRIPTION')
        self.assertEqual(factory.title, 'TITLE')
        self.assertEqual(factory.description, 'DESCRIPTION')

def test___call___no_args(self):
        _called = []
        def _callable(*args, **kw):
            _called.append((args, kw))
        factory = self._makeOne(_callable)
        factory()
        self.assertEqual(_called, [((), {})])

def test___call___positional_args(self):
        _called = []
        def _callable(*args, **kw):
            _called.append((args, kw))
        factory = self._makeOne(_callable)
        factory('one', 'two')
        self.assertEqual(_called, [(('one', 'two'), {})])

def test___call___keyword_args(self):
        _called = []
        def _callable(*args, **kw):
            _called.append((args, kw))
        factory = self._makeOne(_callable)
        factory(foo='bar')
        self.assertEqual(_called, [((), {'foo': 'bar'})])

def test_getInterfaces_explicit(self):
        from zope.interface import Interface
        from zope.interface import implementer
        class IFoo(Interface):
            pass
        class IBar(Interface):
            pass
        class IBaz(Interface):
            pass
        @implementer(IBaz)
        def _callable():
            pass
        factory = self._makeOne(_callable, interfaces=(IFoo, IBar))
        spec = factory.getInterfaces()
        self.assertEqual(spec.__name__, '_callable')
        self.assertEqual(list(spec), [IFoo, IBar])

def test_getInterfaces_implicit(self):
        from zope.interface import Interface
        from zope.interface import implementer
        class IBaz(Interface):
            pass
        @implementer(IBaz)
        def _callable():
            pass
        factory = self._makeOne(_callable)
        spec = factory.getInterfaces()
        self.assertEqual(list(spec), [IBaz])

def _test_callable(*args, **kw):
    pass

def test_suite():
    return unittest.TestSuite((
        unittest.makeSuite(FactoryTests),
    ))

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