test_worst_selfbalance()

Documentation for tests/zkevm/test_worst_stateful_opcodes.py::test_worst_selfbalance@64f949d0.

Generate fixtures for these test cases for Prague with:

fill -v tests/zkevm/test_worst_stateful_opcodes.py::test_worst_selfbalance --fork Prague

Test running a block with as many SELFBALANCE opcodes as possible.

Source code in tests/zkevm/test_worst_stateful_opcodes.py

@pytest.mark.valid_from("Cancun")
@pytest.mark.slow()
def test_worst_selfbalance(
    state_test: StateTestFiller,
    pre: Alloc,
    fork: Fork,
):
    """Test running a block with as many SELFBALANCE opcodes as possible."""
    env = Environment()
    max_stack_height = fork.max_stack_height()

    code_sequence = Op.SELFBALANCE * max_stack_height
    target_address = pre.deploy_contract(code=code_sequence)

    calldata = Bytecode()
    attack_block = Op.POP(Op.STATICCALL(Op.GAS, target_address, 0, 0, 0, 0))

    code = code_loop_precompile_call(calldata, attack_block, fork)
    assert len(code) <= fork.max_code_size()

    code_address = pre.deploy_contract(code=code)

    tx = Transaction(
        to=code_address,
        gas_limit=env.gas_limit,
        sender=pre.fund_eoa(),
    )

    state_test(
        genesis_environment=env,
        pre=pre,
        post={},
        tx=tx,
    )

Parametrized Test Cases

This test case is only parametrized by fork and fixture format.

Fork All Forks Cancun Prague Osaka

Fixture Type All Fixture Types state_test blockchain_test

Test ID (Abbreviated)
...fork_Cancun-state_test
...fork_Cancun-blockchain_test_from_state_test
...fork_Prague-state_test
...fork_Prague-blockchain_test_from_state_test
...fork_Osaka-state_test
...fork_Osaka-blockchain_test_from_state_test