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""" | ||
touch | ||
abstract: Test DUP | ||
Test the DUP opcodes. | ||
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""" | ||
abstract: Test DUP | ||
Test the DUP opcodes. | ||
""" | ||
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import pytest | ||
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from ethereum_test_forks import Frontier, Homestead | ||
from ethereum_test_tools import Account, Alloc, Environment | ||
from ethereum_test_tools import Opcodes as Op | ||
from ethereum_test_tools import StateTestFiller, Storage, Transaction | ||
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@pytest.mark.parametrize( | ||
"dup_opcode", | ||
[ | ||
Op.DUP1, | ||
Op.DUP2, | ||
Op.DUP3, | ||
Op.DUP4, | ||
Op.DUP5, | ||
Op.DUP6, | ||
Op.DUP7, | ||
Op.DUP8, | ||
Op.DUP9, | ||
Op.DUP10, | ||
Op.DUP11, | ||
Op.DUP12, | ||
Op.DUP13, | ||
Op.DUP14, | ||
Op.DUP15, | ||
Op.DUP16, | ||
], | ||
ids=lambda op: str(op), | ||
) | ||
@pytest.mark.with_all_evm_code_types | ||
def test_newl( | ||
state_test: StateTestFiller, | ||
fork: str, | ||
dup_opcode: Op, | ||
pre: Alloc, | ||
): | ||
""" | ||
Test the DUP1-DUP16 opcodes. | ||
Note: Test case ported from [ethereum/tests](https://github.com/ethereum/tests) | ||
Test ported from [ethereum/tests/GeneralStateTests/VMTests/vmTests/dup.json](https://github.com/ethereum/tests/blob/develop/GeneralStateTests/VMTests/vmTests/dup.json) by Ori Pomerantz. | ||
""" # noqa: E501 | ||
env = Environment() | ||
sender = pre.fund_eoa() | ||
post = {} | ||
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# Push 0x00 - 0x10 onto the stack | ||
account_code = sum(Op.PUSH1(i) for i in range(0x11)) | ||
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# Use the DUP opcode | ||
account_code += dup_opcode | ||
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# Save each stack value into different keys in storage | ||
account_code += sum(Op.PUSH1(i) + Op.SSTORE for i in range(0x11)) | ||
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account = pre.deploy_contract(account_code) | ||
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tx = Transaction( | ||
ty=0x0, | ||
nonce=0, | ||
to=account, | ||
gas_limit=500000, | ||
gas_price=10, | ||
protected=False if fork in [Frontier, Homestead] else True, | ||
data="", | ||
sender=sender, | ||
) | ||
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""" | ||
Storage will be structured as follows: | ||
0x00: 0x10-0x01 (Depending on DUP opcode) | ||
0x01: 0x10 | ||
0x02: 0x0F | ||
0x03: 0x0E | ||
0x04: 0x0D | ||
0x05: 0x0C | ||
0x06: 0x0B | ||
0x07: 0x0A | ||
0x08: 0x09 | ||
0x09: 0x08 | ||
0x0A: 0x07 | ||
0x0B: 0x06 | ||
0x0C: 0x05 | ||
0x0D: 0x04 | ||
0x0E: 0x03 | ||
0x0F: 0x02 | ||
0x10: 0x01 | ||
DUP1 copies the first element of the stack (0x10). | ||
DUP16 copies the 16th element of the stack (0x01). | ||
""" | ||
s: Storage.StorageDictType = dict(zip(range(1, 17), range(16, 0, -1))) | ||
s[0] = 16 - (dup_opcode.int() - 0x80) | ||
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post[account] = Account(storage=s) | ||
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state_test(env=env, pre=pre, post=post, tx=tx) |