test_types_extras.py 文件源码

def test_cast_date(self):
        from psycopg2.extras import DateRange
        cur = self.conn.cursor()
        cur.execute("select '(2000-01-01,2012-12-31)'::daterange")
        r = cur.fetchone()[0]
        self.assert_(isinstance(r, DateRange))
        self.assert_(not r.isempty)
        self.assertEqual(r.lower, date(2000,1,2))
        self.assertEqual(r.upper, date(2012,12,31))
        self.assert_(not r.lower_inf)
        self.assert_(not r.upper_inf)
        self.assert_(r.lower_inc)
        self.assert_(not r.upper_inc)