test_types_extras.py 文件源码

def test_lt_ordering(self):
        from psycopg2.extras import Range
        self.assert_(Range(empty=True) < Range(0, 4))
        self.assert_(not Range(1, 2) < Range(0, 4))
        self.assert_(Range(0, 4) < Range(1, 2))
        self.assert_(not Range(1, 2) < Range())
        self.assert_(Range() < Range(1, 2))
        self.assert_(not Range(1) < Range(upper=1))
        self.assert_(not Range() < Range())
        self.assert_(not Range(empty=True) < Range(empty=True))
        self.assert_(not Range(1, 2) < Range(1, 2))
        with py3_raises_typeerror():
            self.assert_(1 < Range(1, 2))
        with py3_raises_typeerror():
            self.assert_(not Range(1, 2) < 1)