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v0.8.1
https://github.com/python/cpython
09 December 2020, 11:06:31 UTC
Revision 4082f600a5bd69c8f4a36111fa5eb197d7547756 authored by Ned Deily on 01 October 2019, 17:23:17 UTC, committed by Ned Deily on 01 October 2019, 17:23:17 UTC 
3.7.5rc1
1 parent 960068b
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Tip revision: 4082f600a5bd69c8f4a36111fa5eb197d7547756 authored by Ned Deily on 01 October 2019, 17:23:17 UTC
3.7.5rc1
Tip revision: 4082f60
test__opcode.py 
import dis
from test.support import import_module
import unittest

_opcode = import_module("_opcode")

class OpcodeTests(unittest.TestCase):

    def test_stack_effect(self):
        self.assertEqual(_opcode.stack_effect(dis.opmap['POP_TOP']), -1)
        self.assertEqual(_opcode.stack_effect(dis.opmap['DUP_TOP_TWO']), 2)
        self.assertEqual(_opcode.stack_effect(dis.opmap['BUILD_SLICE'], 0), -1)
        self.assertEqual(_opcode.stack_effect(dis.opmap['BUILD_SLICE'], 1), -1)
        self.assertEqual(_opcode.stack_effect(dis.opmap['BUILD_SLICE'], 3), -2)
        self.assertRaises(ValueError, _opcode.stack_effect, 30000)
        self.assertRaises(ValueError, _opcode.stack_effect, dis.opmap['BUILD_SLICE'])
        self.assertRaises(ValueError, _opcode.stack_effect, dis.opmap['POP_TOP'], 0)

if __name__ == "__main__":
    unittest.main()
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