Package mock_calls is a generated GoMock package.

Simulate function gets transaction info by hash and then executes a message call transaction, which is directly executed in the VM of the node, but never mined into the blockchain.

ToCallArg is the function that converts ethereum.CallMsg into more abstract map This is done for matter of making EVMClient more abstract since some go-ethereum forks uses different messages types.

UserAmountToWei converts decimal user friendly representation of token amount to 'Wei' representation with provided amount of decimal places eg UserAmountToWei(1, 5) => 100000.