1 import dis 2 from test.support import import_module 3 import unittest 4 5 _opcode = import_module("_opcode") 6 7 class OpcodeTests(unittest.TestCase): 8 9 def test_stack_effect(self): 10 self.assertEqual(_opcode.stack_effect(dis.opmap['POP_TOP']), -1) 11 self.assertEqual(_opcode.stack_effect(dis.opmap['DUP_TOP_TWO']), 2) 12 self.assertEqual(_opcode.stack_effect(dis.opmap['BUILD_SLICE'], 0), -1) 13 self.assertEqual(_opcode.stack_effect(dis.opmap['BUILD_SLICE'], 1), -1) 14 self.assertEqual(_opcode.stack_effect(dis.opmap['BUILD_SLICE'], 3), -2) 15 self.assertRaises(ValueError, _opcode.stack_effect, 30000) 16 self.assertRaises(ValueError, _opcode.stack_effect, dis.opmap['BUILD_SLICE']) 17 self.assertRaises(ValueError, _opcode.stack_effect, dis.opmap['POP_TOP'], 0) 18 19 if __name__ == "__main__": 20 unittest.main() 21
