69 lines
3.0 KiB
Python
69 lines
3.0 KiB
Python
|
import dis
|
||
|
|
from test.support import import_module
|
||
|
|
import unittest
|
||
|
|
|
||
|
|
_opcode = import_module("_opcode")
|
||
|
|
from _opcode import stack_effect
|
||
|
|
|
||
|
|
|
||
|
|
class OpcodeTests(unittest.TestCase):
|
||
|
|
|
||
|
|
def test_stack_effect(self):
|
||
|
|
self.assertEqual(stack_effect(dis.opmap['POP_TOP']), -1)
|
||
|
|
self.assertEqual(stack_effect(dis.opmap['DUP_TOP_TWO']), 2)
|
||
|
|
self.assertEqual(stack_effect(dis.opmap['BUILD_SLICE'], 0), -1)
|
||
|
|
self.assertEqual(stack_effect(dis.opmap['BUILD_SLICE'], 1), -1)
|
||
|
|
self.assertEqual(stack_effect(dis.opmap['BUILD_SLICE'], 3), -2)
|
||
|
|
self.assertRaises(ValueError, stack_effect, 30000)
|
||
|
|
self.assertRaises(ValueError, stack_effect, dis.opmap['BUILD_SLICE'])
|
||
|
|
self.assertRaises(ValueError, stack_effect, dis.opmap['POP_TOP'], 0)
|
||
|
|
# All defined opcodes
|
||
|
|
for name, code in dis.opmap.items():
|
||
|
|
with self.subTest(opname=name):
|
||
|
|
if code < dis.HAVE_ARGUMENT:
|
||
|
|
stack_effect(code)
|
||
|
|
self.assertRaises(ValueError, stack_effect, code, 0)
|
||
|
|
else:
|
||
|
|
stack_effect(code, 0)
|
||
|
|
self.assertRaises(ValueError, stack_effect, code)
|
||
|
|
# All not defined opcodes
|
||
|
|
for code in set(range(256)) - set(dis.opmap.values()):
|
||
|
|
with self.subTest(opcode=code):
|
||
|
|
self.assertRaises(ValueError, stack_effect, code)
|
||
|
|
self.assertRaises(ValueError, stack_effect, code, 0)
|
||
|
|
|
||
|
|
def test_stack_effect_jump(self):
|
||
|
|
JUMP_IF_TRUE_OR_POP = dis.opmap['JUMP_IF_TRUE_OR_POP']
|
||
|
|
self.assertEqual(stack_effect(JUMP_IF_TRUE_OR_POP, 0), 0)
|
||
|
|
self.assertEqual(stack_effect(JUMP_IF_TRUE_OR_POP, 0, jump=True), 0)
|
||
|
|
self.assertEqual(stack_effect(JUMP_IF_TRUE_OR_POP, 0, jump=False), -1)
|
||
|
|
FOR_ITER = dis.opmap['FOR_ITER']
|
||
|
|
self.assertEqual(stack_effect(FOR_ITER, 0), 1)
|
||
|
|
self.assertEqual(stack_effect(FOR_ITER, 0, jump=True), -1)
|
||
|
|
self.assertEqual(stack_effect(FOR_ITER, 0, jump=False), 1)
|
||
|
|
JUMP_FORWARD = dis.opmap['JUMP_FORWARD']
|
||
|
|
self.assertEqual(stack_effect(JUMP_FORWARD, 0), 0)
|
||
|
|
self.assertEqual(stack_effect(JUMP_FORWARD, 0, jump=True), 0)
|
||
|
|
self.assertEqual(stack_effect(JUMP_FORWARD, 0, jump=False), 0)
|
||
|
|
# All defined opcodes
|
||
|
|
has_jump = dis.hasjabs + dis.hasjrel
|
||
|
|
for name, code in dis.opmap.items():
|
||
|
|
with self.subTest(opname=name):
|
||
|
|
if code < dis.HAVE_ARGUMENT:
|
||
|
|
common = stack_effect(code)
|
||
|
|
jump = stack_effect(code, jump=True)
|
||
|
|
nojump = stack_effect(code, jump=False)
|
||
|
|
else:
|
||
|
|
common = stack_effect(code, 0)
|
||
|
|
jump = stack_effect(code, 0, jump=True)
|
||
|
|
nojump = stack_effect(code, 0, jump=False)
|
||
|
|
if code in has_jump:
|
||
|
|
self.assertEqual(common, max(jump, nojump))
|
||
|
|
else:
|
||
|
|
self.assertEqual(jump, common)
|
||
|
|
self.assertEqual(nojump, common)
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
unittest.main()
|