##############################################################################
#
# Copyright (c) 2004 Zope Corporation 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 the unique id handling.

$Id: test_uidhandling.py 37135 2005-07-08 13:24:33Z tseaver $
"""

from unittest import TestCase, TestSuite, makeSuite, main
import Testing
try:
    import Zope2
except ImportError: # BBB: for Zope 2.7
    import Zope as Zope2
Zope2.startup()

from Interface.Verify import verifyObject

from Products.CMFCore.tests.base.testcase import SecurityTest

from Products.CMFCore.tests.base.dummy import DummyContent
from Products.CMFCore.tests.base.dummy import DummyFolder
from Products.CMFCore.tests.base.dummy import DummySite

from Products.CMFCore.CatalogTool import CatalogTool

from Products.CMFUid.interfaces import IUniqueIdHandler
from Products.CMFUid.interfaces import IUniqueIdBrainQuery
from Products.CMFUid.interfaces import IUniqueIdUnrestrictedQuery

from Products.CMFUid.UniqueIdGeneratorTool import UniqueIdGeneratorTool
from Products.CMFUid.UniqueIdAnnotationTool import UniqueIdAnnotationTool
from Products.CMFUid.UniqueIdHandlerTool import UniqueIdHandlerTool

def removeUnnecessaryIndexes(catalog):
    indexes = [id[0] for id in catalog.enumerateIndexes()]
    columns = catalog.enumerateColumns()
    catalog.manage_delIndex(indexes)
    catalog.manage_delColumn(columns)

class DummyUid:
    """A dummy uid that surely is of different type of the generated ones.
    """
    pass

class UniqueIdHandlerTests(SecurityTest):

    def setUp(self):
        SecurityTest.setUp(self)
        self.root._setObject('portal_catalog', CatalogTool())
        self.root._setObject('portal_uidgenerator', UniqueIdGeneratorTool())
        self.root._setObject('portal_uidannotation', UniqueIdAnnotationTool())
        self.root._setObject('portal_uidhandler', UniqueIdHandlerTool())
        self.root._setObject('dummy', DummyContent(id='dummy'))
        self.root._setObject('dummy2', DummyContent(id='dummy2'))
        
        removeUnnecessaryIndexes(self.root.portal_catalog)
    
    def test_interface(self):
        handler = self.root.portal_uidhandler
        verifyObject(IUniqueIdHandler, handler)
        verifyObject(IUniqueIdBrainQuery, handler)
        verifyObject(IUniqueIdUnrestrictedQuery, handler)
    
    def test_getUidOfNotYetRegisteredObject(self):
        handler = self.root.portal_uidhandler
        dummy = self.root.dummy
        UniqueIdError = handler.UniqueIdError
        
        self.assertEqual(handler.queryUid(dummy, None), None)
        self.assertRaises(UniqueIdError, handler.getUid, dummy)
    
    def test_getInvalidUid(self):
        handler = self.root.portal_uidhandler
        dummy = self.root.dummy
        UniqueIdError = handler.UniqueIdError
        
        self.assertEqual(handler.queryObject(100, None), None)
        self.assertRaises(UniqueIdError, handler.getObject, 100)
        self.assertEqual(handler.unrestrictedQueryObject(100, None), None)
        self.assertRaises(UniqueIdError, handler.unrestrictedGetObject, 100)
    
        uid = handler.register(dummy)
        self.assertEqual(handler.queryObject(uid+1, None), None)
        self.assertRaises(UniqueIdError, handler.getObject, uid+1)
        self.assertEqual(handler.unrestrictedQueryObject(uid+1, None), None)
        self.assertRaises(UniqueIdError, handler.unrestrictedGetObject, uid+1)
    
    def test_getUidOfRegisteredObject(self):
        handler = self.root.portal_uidhandler
        dummy = self.root.dummy
        
        uid = handler.register(dummy)
        self.assertEqual(handler.getUid(dummy), uid)
    
    def test_getRegisteredObjectByUid(self):
        handler = self.root.portal_uidhandler
        dummy = self.root.dummy
        
        uid = handler.register(dummy)
        self.assertEqual(handler.getObject(uid), dummy)
        self.assertEqual(handler.unrestrictedGetObject(uid), dummy)
    
    def test_getUnregisteredObject(self):
        handler = self.root.portal_uidhandler
        dummy = self.root.dummy
        UniqueIdError = handler.UniqueIdError
        
        uid = handler.register(dummy)
        handler.unregister(dummy)
        self.assertEqual(handler.queryObject(uid, None), None)
        self.assertRaises(UniqueIdError, handler.getObject, uid)
        self.assertEqual(handler.unrestrictedQueryObject(uid, None), None)
        self.assertRaises(UniqueIdError, handler.unrestrictedGetObject, uid)

    def test_getUidOfUnregisteredObject(self):
        handler = self.root.portal_uidhandler
        dummy = self.root.dummy
        UniqueIdError = handler.UniqueIdError
        
        uid = handler.register(dummy)
        handler.unregister(dummy)
        self.assertEqual(handler.queryUid(dummy, None), None)
        self.assertRaises(UniqueIdError, handler.getUid, dummy)

    def test_reregisterObject(self):
        handler = self.root.portal_uidhandler
        dummy = self.root.dummy
        
        uid1_reg = handler.register(dummy)
        uid1_get = handler.getUid(dummy)
        uid2_reg = handler.register(dummy)
        uid2_get = handler.getUid(dummy)
        self.assertEqual(uid1_reg, uid2_reg)
        self.assertEqual(uid1_get, uid2_get)
        self.assertEqual(uid1_reg, uid1_get)
    
    def test_unregisterObjectWithoutUid(self):
        handler = self.root.portal_uidhandler
        dummy = self.root.dummy
        UniqueIdError = handler.UniqueIdError
        
        self.assertRaises(UniqueIdError, handler.unregister, dummy)

    def test_setNewUidByHandWithCheck(self):
        handler = self.root.portal_uidhandler
        dummy = self.root.dummy
        
        # registering and unregisterung a object just to get a free uid
        unused_uid = handler.register(dummy)
        handler.unregister(dummy)
        
        handler.setUid(dummy, unused_uid)
        
        result = handler.getUid(dummy)
        self.assertEqual(unused_uid, result)
        
    def test_setSameUidOnSameObjectWithCheck(self):
        handler = self.root.portal_uidhandler
        dummy = self.root.dummy
        
        uid = handler.register(dummy)
        
        # just setting the same uid another time is allowed
        handler.setUid(dummy, uid)
        
        result = handler.getUid(dummy)
        self.assertEqual(uid, result)
        
    def test_setExistingUidOnDifferentObjectWithCheckRaisesException(self):
        handler = self.root.portal_uidhandler
        dummy = self.root.dummy
        dummy2 = self.root.dummy2
        UniqueIdError = handler.UniqueIdError
        
        # registering and unregisterung a object just to get a free uid
        uid1_reg = handler.register(dummy)
        uid2_reg = handler.register(dummy2)
        
        self.assertRaises(UniqueIdError, handler.setUid, dummy2, uid1_reg)

    def test_setExistingUidOnDifferentObjectWithoutCheck(self):
        handler = self.root.portal_uidhandler
        dummy = self.root.dummy
        dummy2 = self.root.dummy2
        UniqueIdError = handler.UniqueIdError
        
        # registering and unregisterung a object just to get a free uid
        uid1_reg = handler.register(dummy)
        uid2_reg = handler.register(dummy2)
        
        # now lets double the unique id
        handler.setUid(dummy2, uid1_reg, check_uniqueness=False)
        
        # calling a getter returns one object and generates a log
        # we can't capture. So let's ask the catalog directly.
        catalog = self.root.portal_catalog
        result = catalog({handler.UID_ATTRIBUTE_NAME: uid1_reg})
        self.assertEqual(len(result), 2)
        
        # dummy2 shall not be reachable anymore by uid2_reg
        self.assertRaises(UniqueIdError, handler.getBrain, uid2_reg)

    def test_setNoneAsUidRaisesException(self):
        handler = self.root.portal_uidhandler
        dummy = self.root.dummy
        UniqueIdError = handler.UniqueIdError
        
        uid = handler.register(dummy)
        
        self.assertRaises(UniqueIdError, handler.setUid, dummy, None)

    def test_setArbitraryKindOfUidRaisesException(self):
        handler = self.root.portal_uidhandler
        dummy = self.root.dummy
        UniqueIdError = handler.UniqueIdError
        
        uid = handler.register(dummy)
        
        # As we don't know what kind of exception the implementation
        # throws lets check for all exceptions! 
        # IMHO it makes sense here to catch exceptions in general here!
        self.assertRaises(Exception, handler.setUid, dummy, DummyUid())
        

def test_suite():
    return TestSuite((
        makeSuite(UniqueIdHandlerTests),
        ))

if __name__ == '__main__':
    main(defaultTest='test_suite')
