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test_chainid()

Documentation for tests/istanbul/eip1344_chainid/test_chainid.py::test_chainid@7b8124a7.

Generate fixtures for these test cases for Osaka with:

fill -v tests/istanbul/eip1344_chainid/test_chainid.py::test_chainid --fork Osaka

Test CHAINID opcode.

Source code in tests/istanbul/eip1344_chainid/test_chainid.py 
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@pytest.mark.with_all_typed_transactions(
    marks=lambda tx_type: (
        pytest.mark.execute(
            pytest.mark.skip(
                reason="type 3 transactions aren't supported in execute mode"
            )
        )
        if tx_type == 3
        else None
    )
)
@pytest.mark.valid_from("Istanbul")
def test_chainid(
    state_test: StateTestFiller,
    pre: Alloc,
    chain_config: ChainConfig,
    typed_transaction: Transaction,
) -> None:
    """Test CHAINID opcode."""
    chain_id = chain_config.chain_id
    contract_address = pre.deploy_contract(Op.SSTORE(1, Op.CHAINID) + Op.STOP)

    tx = typed_transaction.copy(
        chain_id=chain_id,
        to=contract_address,
    )

    post = {
        contract_address: Account(storage={1: chain_id}),
    }

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

Parametrized Test Cases

This test generates 5 parametrized test cases across 8 forks.