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path: root/src/zope/security/tests/test_permission.py
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##############################################################################
#
# Copyright (c) 2004 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 permissions
"""
import unittest


class PermissionTests(unittest.TestCase):

    def _getTargetClass(self):
        from zope.security.permission import Permission
        return Permission

    def _makeOne(self, id, title=None, description=None):
        klass = self._getTargetClass()
        if description is None:
            if title is None:
                return klass(id)
            return klass(id, title)
        if title is None:
            return klass(id, description=description)
        return klass(id, title, description)

    def test_class_conforms_to_IPermission(self):
        from zope.interface.verify import verifyClass
        from zope.security.interfaces import IPermission
        verifyClass(IPermission, self._getTargetClass())

    def test_instance_conforms_to_IPermission(self):
        from zope.interface.verify import verifyObject
        from zope.security.interfaces import IPermission
        verifyObject(IPermission, self._makeOne('testing'))

    def test_ctor_only_id(self):
        permission = self._makeOne('testing')
        self.assertEqual(permission.id, 'testing')
        self.assertEqual(permission.title, '')
        self.assertEqual(permission.description, '')

    def test_ctor_w_title_and_description(self):
        permission = self._makeOne('testing', 'TITLE', 'DESCRIPTION')
        self.assertEqual(permission.id, 'testing')
        self.assertEqual(permission.title, 'TITLE')
        self.assertEqual(permission.description, 'DESCRIPTION')


class Test_checkPermission(unittest.TestCase):

    def setUp(self):
        from zope.component.testing import setUp
        setUp()

    def tearDown(self):
        from zope.component.testing import tearDown
        tearDown()

    def _callFUT(self, context, permission_id):
        from zope.security.permission import checkPermission
        return checkPermission(context, permission_id)

    def test_w_CheckerPublic(self):
        from zope.security.checker import CheckerPublic
        self._callFUT(None, CheckerPublic) # no raise

    def test_miss(self):
        self.assertRaises(ValueError, self._callFUT, None, 'nonesuch')

    def test_hit(self):
        from zope.component import provideUtility
        from zope.security.interfaces import IPermission
        permission = object()
        provideUtility(permission, IPermission, 'testing')
        self._callFUT(None, 'testing') # no raise


class Test_allPermissions(unittest.TestCase):

    def setUp(self):
        from zope.component.testing import setUp
        setUp()

    def tearDown(self):
        from zope.component.testing import tearDown
        tearDown()

    def _callFUT(self):
        from zope.security.permission import allPermissions
        return allPermissions()

    def test_empty(self):
        self.assertEqual(list(self._callFUT()), [])

    def test_w_registration(self):
        self.assertEqual(list(self._callFUT()), [])
        from zope.component import provideUtility
        from zope.security.interfaces import IPermission
        permission = object()
        provideUtility(permission, IPermission, 'testing')
        self.assertEqual(list(self._callFUT()), ['testing'])

    def test_skips_zope_Public(self):
        self.assertEqual(list(self._callFUT()), [])
        from zope.component import provideUtility
        from zope.security.checker import CheckerPublic
        from zope.security.interfaces import IPermission
        permission = object()
        provideUtility(permission, IPermission, 'testing')
        provideUtility(CheckerPublic, IPermission, 'zope.Public')
        self.assertEqual(list(self._callFUT()), ['testing'])


def test_suite():
    return unittest.TestSuite([
            unittest.makeSuite(PermissionTests),
            unittest.makeSuite(Test_checkPermission),
            unittest.makeSuite(Test_allPermissions),
        ])