test_types_extras.py 文件源码

def test_cast_timestamp(self):
        from psycopg2.extras import DateTimeRange
        cur = self.conn.cursor()
        ts1 = datetime(2000,1,1)
        ts2 = datetime(2000,12,31,23,59,59,999)
        cur.execute("select tsrange(%s, %s, '()')", (ts1, ts2))
        r = cur.fetchone()[0]
        self.assert_(isinstance(r, DateTimeRange))
        self.assert_(not r.isempty)
        self.assertEqual(r.lower, ts1)
        self.assertEqual(r.upper, ts2)
        self.assert_(not r.lower_inf)
        self.assert_(not r.upper_inf)
        self.assert_(not r.lower_inc)
        self.assert_(not r.upper_inc)