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##############################################################################
#
# Copyright (c) 2014 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.
#
##############################################################################
"""Resolution ordering utility tests"""
import unittest
class Test__mergeOrderings(unittest.TestCase):
def _callFUT(self, orderings):
from zope.interface.ro import _mergeOrderings
return _mergeOrderings(orderings)
def test_empty(self):
self.assertEqual(self._callFUT([]), [])
def test_single(self):
self.assertEqual(self._callFUT(['a', 'b', 'c']), ['a', 'b', 'c'])
def test_w_duplicates(self):
self.assertEqual(self._callFUT([['a'], ['b', 'a']]), ['b', 'a'])
def test_suffix_across_multiple_duplicats(self):
O1 = ['x', 'y', 'z']
O2 = ['q', 'z']
O3 = [1, 3, 5]
O4 = ['z']
self.assertEqual(self._callFUT([O1, O2, O3, O4]),
['x', 'y', 'q', 1, 3, 5, 'z'])
class Test__flatten(unittest.TestCase):
def _callFUT(self, ob):
from zope.interface.ro import _flatten
return _flatten(ob)
def test_w_empty_bases(self):
class Foo(object):
pass
foo = Foo()
foo.__bases__ = ()
self.assertEqual(self._callFUT(foo), [foo])
def test_w_single_base(self):
class Foo(object):
pass
self.assertEqual(self._callFUT(Foo), [Foo, object])
def test_w_bases(self):
class Foo(object):
pass
class Bar(Foo):
pass
self.assertEqual(self._callFUT(Bar), [Bar, Foo, object])
def test_w_diamond(self):
class Foo(object):
pass
class Bar(Foo):
pass
class Baz(Foo):
pass
class Qux(Bar, Baz):
pass
self.assertEqual(self._callFUT(Qux),
[Qux, Bar, Foo, object, Baz, Foo, object])
class Test_ro(unittest.TestCase):
def _callFUT(self, ob):
from zope.interface.ro import ro
return ro(ob)
def test_w_empty_bases(self):
class Foo(object):
pass
foo = Foo()
foo.__bases__ = ()
self.assertEqual(self._callFUT(foo), [foo])
def test_w_single_base(self):
class Foo(object):
pass
self.assertEqual(self._callFUT(Foo), [Foo, object])
def test_w_bases(self):
class Foo(object):
pass
class Bar(Foo):
pass
self.assertEqual(self._callFUT(Bar), [Bar, Foo, object])
def test_w_diamond(self):
class Foo(object):
pass
class Bar(Foo):
pass
class Baz(Foo):
pass
class Qux(Bar, Baz):
pass
self.assertEqual(self._callFUT(Qux),
[Qux, Bar, Baz, Foo, object])