# copyright 2003-2010 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/>.
"""unit tests for cubicweb.devtools.fill module

"""
import re

from logilab.common.testlib import TestCase, unittest_main

from cubicweb.devtools.fill import ValueGenerator, _ValueGenerator

ISODATE_SRE = re.compile('(?P<year>\d{4})-(?P<month>\d{2})-(?P<day>\d{2})$')


class AutoExtendableTC(TestCase):

    def setUp(self):
        self.attrvalues = dir(_ValueGenerator)

    def tearDown(self):
        attrvalues = set(dir(_ValueGenerator))
        for attrname in attrvalues - set(self.attrvalues):
            delattr(_ValueGenerator, attrname)


    def test_autoextend(self):
        self.assertNotIn('generate_server', dir(ValueGenerator))
        class MyValueGenerator(ValueGenerator):
            def generate_server(self, index):
                return attrname
        self.assertIn('generate_server', dir(ValueGenerator))


    def test_bad_signature_detection(self):
        self.assertNotIn('generate_server', dir(ValueGenerator))
        try:
            class MyValueGenerator(ValueGenerator):
                def generate_server(self):
                    pass
        except TypeError:
            self.assertNotIn('generate_server', dir(ValueGenerator))
        else:
            self.fail('TypeError not raised')


    def test_signature_extension(self):
        self.assertNotIn('generate_server', dir(ValueGenerator))
        class MyValueGenerator(ValueGenerator):
            def generate_server(self, index, foo):
                pass
        self.assertIn('generate_server', dir(ValueGenerator))


if __name__ == '__main__':
    unittest_main()