# -*- coding: utf-8 -*-

"""unit/functional tests for cubicweb.server.hookhelper

:organization: Logilab

:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.

:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr

:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses

"""

from logilab.common.testlib import unittest_main

from cubicweb.devtools.testlib import CubicWebTC

from cubicweb.server.pool import LateOperation, Operation, SingleLastOperation

from cubicweb.server.hookhelper import *

from cubicweb.server import hooks, schemahooks

def clean_session_ops(func):

    def wrapper(self, *args, **kwargs):

        try:

            return func(self, *args, **kwargs)

        finally:

            self.session.pending_operations[:] = []

    return wrapper

class HookHelpersTC(CubicWebTC):

    def setUp(self):

        CubicWebTC.setUp(self)

        self.hm = self.repo.hm

    @clean_session_ops

    def test_late_operation(self):

        session = self.session

        l1 = LateOperation(session)

        l2 = LateOperation(session)

        l3 = Operation(session)

        self.assertEquals(session.pending_operations, [l3, l1, l2])

    @clean_session_ops

    def test_single_last_operation(self):

        session = self.session

        l0 = SingleLastOperation(session)

        l1 = LateOperation(session)

        l2 = LateOperation(session)

        l3 = Operation(session)

        self.assertEquals(session.pending_operations, [l3, l1, l2, l0])

        l4 = SingleLastOperation(session)

        self.assertEquals(session.pending_operations, [l3, l1, l2, l4])

    @clean_session_ops

    def test_global_operation_order(self):

        session = self.session

        op1 = hooks.DelayedDeleteOp(session)

        op2 = schemahooks.MemSchemaRDefDel(session)

        # equivalent operation generated by op2 but replace it here by op3 so we

        # can check the result...

        op3 = schemahooks.MemSchemaNotifyChanges(session)

        op4 = hooks.DelayedDeleteOp(session)

        op5 = hooks.CheckORelationOp(session)

        self.assertEquals(session.pending_operations, [op1, op2, op4, op5, op3])

    def test_in_state_notification(self):

        result = []

        # test both email notification and transition_information

        # whatever if we can connect to the default stmp server, transaction

        # should not fail

        def in_state_changed(session, eidfrom, rtype, eidto):

            tr = previous_state(session, eidfrom)

            if tr is None:

                result.append(tr)

                return

            content = u'trÀnsition from %s to %s' % (tr.name, entity_name(session, eidto))

            result.append(content)

            SendMailOp(session, msg=content, recipients=['test@logilab.fr'])

        self.hm.register_hook(in_state_changed,

                             'before_add_relation', 'in_state')

        self.execute('INSERT CWUser X: X login "paf", X upassword "wouf", X in_state S, X in_group G WHERE S name "activated", G name "users"')

        self.assertEquals(result, [None])

        searchedops = [op for op in self.session.pending_operations

                       if isinstance(op, SendMailOp)]

        self.assertEquals(len(searchedops), 0,

                          self.session.pending_operations)

        self.commit()

        self.execute('SET X in_state S WHERE X login "paf", S name "deactivated"')

        self.assertEquals(result, [None, u'trÀnsition from activated to deactivated'])

        # one to send the mail, one to close the smtp connection

        searchedops = [op for op in self.session.pending_operations

                       if isinstance(op, SendMailOp)]

        self.assertEquals(len(searchedops), 1,

                          self.session.pending_operations)

        self.commit()

        self.assertEquals([], self.session.pending_operations)

if __name__ == '__main__':

    unittest_main()