import unittest2

import openerp


class test_domain_normalization(unittest2.TestCase):
    def test_normalize_domain(self):
        expression = openerp.osv.expression
        norm_domain = domain = ['&', (1, '=', 1), ('a', '=', 'b')]
        assert norm_domain == expression.normalize_domain(domain), "Normalized domains should be left untouched"
        domain = [('x', 'in', ['y', 'z']), ('a.v', '=', 'e'), '|', '|', ('a', '=', 'b'), '!', ('c', '>', 'd'), ('e', '!=', 'f'), ('g', '=', 'h')]
        norm_domain = ['&', '&', '&'] + domain
        assert norm_domain == expression.normalize_domain(domain), "Non-normalized domains should be properly normalized"