import unittest
import datetime
from . import Q


class TestSqlBuilder(unittest.TestCase):

    def test_q(self):
        self.assertEqual(str(Q(a=1)), "(a=1)")
        self.assertEqual(str(Q(a=1) & ~Q(b=2)), "((a=1) AND NOT (b=2))")
        self.assertEqual(str(Q(nombre="jose")), "(nombre='jose')")
        self.assertEqual(str(Q(a__isnull=True)), "(a is NULL)")
        self.assertEqual(str(Q(a__isnull=False)), "(a is NOT NULL)")

    def test_dates(self):
        date = datetime.date(2010, 1, 15)
        self.assertEqual(str(Q(fecha=date)), "(fecha='2010-01-15')")

        date = datetime.datetime(2010, 1, 15, 23, 59, 38)
        self.assertEqual(str(Q(fecha=date)), "(fecha='2010-01-15 23:59:38')")


if __name__ == '__main__':
    unittest.main()