fix(anvil): tx.gas_price() return val

[yash-atreya]

Motivation

When a tx is sent, upon validation we are checking the tx.gas_price() against the block.basefee. The value returned from tx.gas_price() is max_fee_per_blob_gas in case of a 4844 tx, which would more often than not be less than that of 1559 basefee, especially on startup.

This would cause the transaction to be failed with error InvalidTransactionError::FeeCapTooLow even though max_fee_per_gas would have been set correctly.

Solution

Check which type of tx is incoming and associate gas_price correctly.

[mattsse]

The value returned from tx.gas_price() is max_fee_per_blob_gas in case of a 4844 tx

this sounds wrong, imo this is the issue gas price should return the gas price or 1559 max fee