| 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() |