test_parser.py 文件源码

def test_issue_9011(self):
        # Issue 9011: compilation of an unary minus expression changed
        # the meaning of the ST, so that a second compilation produced
        # incorrect results.
        st = parser.expr('-3')
        code1 = parser.compilest(st)
        self.assertEqual(eval(code1), -3)
        code2 = parser.compilest(st)
        self.assertEqual(eval(code2), -3)