test_vector_exchange_invalid_0x52()

Documentation for tests/amsterdam/eip8024_dupn_swapn_exchange/test_eip_vectors.py::test_vector_exchange_invalid_0x52@2119b382.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/amsterdam/eip8024_dupn_swapn_exchange/test_eip_vectors.py::test_vector_exchange_invalid_0x52 --fork Amsterdam

Test vector: e852 [INVALID_EXCHANGE, MSTORE].

EXCHANGE with immediate 0x52 (82 decimal) is in the invalid range (82-127). Execution should abort with exceptional halt.

Source code in tests/amsterdam/eip8024_dupn_swapn_exchange/test_eip_vectors.py

def test_vector_exchange_invalid_0x52(
    pre: Alloc,
    state_test: StateTestFiller,
) -> None:
    """
    Test vector: e852 [INVALID_EXCHANGE, MSTORE].

    EXCHANGE with immediate 0x52 (82 decimal) is in the invalid
    range (82-127). Execution should abort with exceptional halt.
    """
    sender = pre.fund_eoa()

    # Push enough items on stack for any potential operation
    code = Bytecode()
    for i in range(30):
        code += Op.PUSH1(i)

    # EXCHANGE with invalid immediate 0x52 - should abort
    # Hex: e8 52
    code += Op.EXCHANGE[b"\x52"]

    # This would be MSTORE if we got here (0x52 = MSTORE opcode)
    code += Op.MSTORE
    code += Op.PUSH1(0x42) + Op.PUSH1(0) + Op.SSTORE
    code += Op.STOP

    contract_address = pre.deploy_contract(code=code)
    tx = Transaction(to=contract_address, sender=sender)

    # Transaction should fail, storage unchanged
    post = {contract_address: Account(storage={})}

    state_test(pre=pre, post=post, tx=tx)

Parametrized Test Cases

This test generates 1 parametrized test case across 1 fork.