PrepareSimulatorTest creates an environment to test transaction simulations.

Account contains public and private keys, as well as the state of an account.

AppParams mirrors basics.AppParams, but allows the approval and clear state programs to have the same values that txntest.Txn accepts.

Environment contains the ledger and testing environment for transaction simulations.

TxnInfo contains information about the network used for instantiating txntest.Txns.