server/test/unittest_session.py
author Anthony Truchet <anthony.truchet@logilab.fr>
Mon, 27 Feb 2012 09:43:15 +0100 (2012-02-27)
changeset 8265 9747ab9230ad
parent 7970 83075d897943
child 8542 7e264ce34cd4
permissions -rw-r--r--
[repo, undo] Finish repository-side implementation of the undo feature (closes #893940) 1) Changes API for undo_transaction in order to raise an exception: the previous API returned a sequence of error, the user of the API needed to be careful to check explicitly. We change this for it to raise an UndoException with the list of errors as an attribute. 2) The server-side support for undoing update actions is finished 3) The configuration for `undo-support` is now a simple boolean Beware of the costs, both in DB space and in number of requests on the RDBMS backend, once this feture is activated. 4) Adds a txuuid param/attribute to the existing NoSuchTransaction exception.
# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
from __future__ import with_statement

from logilab.common.testlib import TestCase, unittest_main, mock_object

from cubicweb.devtools.testlib import CubicWebTC
from cubicweb.server.session import _make_description, hooks_control

class Variable:
    def __init__(self, name):
        self.name = name
        self.children = []

    def get_type(self, solution, args=None):
        return solution[self.name]
    def as_string(self):
        return self.name

class Function:
    def __init__(self, name, varname):
        self.name = name
        self.children = [Variable(varname)]
    def get_type(self, solution, args=None):
        return 'Int'

class MakeDescriptionTC(TestCase):
    def test_known_values(self):
        solution = {'A': 'Int', 'B': 'CWUser'}
        self.assertEqual(_make_description((Function('max', 'A'), Variable('B')), {}, solution),
                          ['Int','CWUser'])


class InternalSessionTC(CubicWebTC):
    def test_dbapi_query(self):
        session = self.repo.internal_session()
        self.assertFalse(session.running_dbapi_query)
        session.close()


class SessionTC(CubicWebTC):

    def test_hooks_control(self):
        session = self.session
        self.assertEqual(session.hooks_mode, session.HOOKS_ALLOW_ALL)
        self.assertEqual(session.disabled_hook_categories, set())
        self.assertEqual(session.enabled_hook_categories, set())
        self.assertEqual(len(session._tx_data), 1)
        with hooks_control(session, session.HOOKS_DENY_ALL, 'metadata'):
            self.assertEqual(session.hooks_mode, session.HOOKS_DENY_ALL)
            self.assertEqual(session.disabled_hook_categories, set())
            self.assertEqual(session.enabled_hook_categories, set(('metadata',)))
            session.commit()
            self.assertEqual(session.hooks_mode, session.HOOKS_DENY_ALL)
            self.assertEqual(session.disabled_hook_categories, set())
            self.assertEqual(session.enabled_hook_categories, set(('metadata',)))
            session.rollback()
            self.assertEqual(session.hooks_mode, session.HOOKS_DENY_ALL)
            self.assertEqual(session.disabled_hook_categories, set())
            self.assertEqual(session.enabled_hook_categories, set(('metadata',)))
            with hooks_control(session, session.HOOKS_ALLOW_ALL, 'integrity'):
                self.assertEqual(session.hooks_mode, session.HOOKS_ALLOW_ALL)
                self.assertEqual(session.disabled_hook_categories, set(('integrity',)))
                self.assertEqual(session.enabled_hook_categories, set(('metadata',))) # not changed in such case
            self.assertEqual(session.hooks_mode, session.HOOKS_DENY_ALL)
            self.assertEqual(session.disabled_hook_categories, set())
            self.assertEqual(session.enabled_hook_categories, set(('metadata',)))
        # leaving context manager with no transaction running should reset the
        # transaction local storage (and associated cnxset)
        self.assertEqual(session._tx_data, {})
        self.assertEqual(session.cnxset, None)
        self.assertEqual(session.hooks_mode, session.HOOKS_ALLOW_ALL)
        self.assertEqual(session.disabled_hook_categories, set())
        self.assertEqual(session.enabled_hook_categories, set())

    def test_build_descr1(self):
        rset = self.execute('(Any U,L WHERE U login L) UNION (Any G,N WHERE G name N, G is CWGroup)')
        orig_length = len(rset)
        rset.rows[0][0] = 9999999
        description = self.session.build_description(rset.syntax_tree(), None, rset.rows)
        self.assertEqual(len(description), orig_length - 1)
        self.assertEqual(len(rset.rows), orig_length - 1)
        self.assertFalse(rset.rows[0][0] == 9999999)

    def test_build_descr2(self):
        rset = self.execute('Any X,Y WITH X,Y BEING ((Any G,NULL WHERE G is CWGroup) UNION (Any U,G WHERE U in_group G))')
        for x, y in rset.description:
            if y is not None:
                self.assertEqual(y, 'CWGroup')

    def test_build_descr3(self):
        rset = self.execute('(Any G,NULL WHERE G is CWGroup) UNION (Any U,G WHERE U in_group G)')
        for x, y in rset.description:
            if y is not None:
                self.assertEqual(y, 'CWGroup')


if __name__ == '__main__':
    unittest_main()