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test_transfer_log_fork_transition()

Documentation for tests/amsterdam/eip7708_eth_transfer_logs/test_fork_transition.py::test_transfer_log_fork_transition@87aba1a3.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/amsterdam/eip7708_eth_transfer_logs/test_fork_transition.py::test_transfer_log_fork_transition --fork Amsterdam

Test ETH transfer log behavior at fork transition.

Before Amsterdam: ETH transfers do NOT emit logs. At/after Amsterdam: ETH transfers emit Transfer logs.

Source code in tests/amsterdam/eip7708_eth_transfer_logs/test_fork_transition.py 
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@pytest.mark.valid_at_transition_to("EIP7708")
def test_transfer_log_fork_transition(
    blockchain_test: BlockchainTestFiller, pre: Alloc
) -> None:
    """
    Test ETH transfer log behavior at fork transition.

    Before Amsterdam: ETH transfers do NOT emit logs.
    At/after Amsterdam: ETH transfers emit Transfer logs.
    """
    sender = pre.fund_eoa()
    recipient = pre.nonexistent_account()

    blocks = [
        Block(
            timestamp=14_999,
            txs=[
                Transaction(
                    to=recipient,
                    sender=sender,
                    value=100,
                    expected_receipt=TransactionReceipt(logs=[]),
                )
            ],
        ),
        Block(
            timestamp=15_000,
            txs=[
                Transaction(
                    to=recipient,
                    sender=sender,
                    value=100,
                    expected_receipt=TransactionReceipt(
                        logs=[transfer_log(sender, recipient, 100)]
                    ),
                )
            ],
        ),
        Block(
            timestamp=15_001,
            txs=[
                Transaction(
                    to=recipient,
                    sender=sender,
                    value=100,
                    expected_receipt=TransactionReceipt(
                        logs=[transfer_log(sender, recipient, 100)]
                    ),
                )
            ],
        ),
    ]

    blockchain_test(
        pre=pre,
        blocks=blocks,
        post={
            recipient: Account(balance=300),
        },
    )

Parametrized Test Cases

This test generates 1 parametrized test case across 1 fork.