test_grouping.py 文件源码

def test_parenthesis(self):
        s = 'select (select (x3) x2) and (y2) bar'
        parsed = sqlparse.parse(s)[0]
        self.ndiffAssertEqual(s, str(parsed))
        self.assertEqual(len(parsed.tokens), 7)
        self.assert_(isinstance(parsed.tokens[2], sql.Parenthesis))
        self.assert_(isinstance(parsed.tokens[-1], sql.Identifier))
        self.assertEqual(len(parsed.tokens[2].tokens), 5)
        self.assert_(isinstance(parsed.tokens[2].tokens[3], sql.Identifier))
        self.assert_(isinstance(parsed.tokens[2].tokens[3].tokens[0], sql.Parenthesis))
        self.assertEqual(len(parsed.tokens[2].tokens[3].tokens), 3)