constructErc20Data constructs the data field to be passed into a n erc20 deposit call.

constructErc20Data constructs the data field to be passed into an erc721 deposit call.

CreateFunctionSignature hashes the function signature and returns the first 4 bytes.

DeployContracts deploys Bridge, Relayer, ERC20Handler, ERC721Handler and CentrifugeAssetHandler and returns the addresses.

DeployMintAndApprove deploys a new erc721 contract, mints to the deployer, and approves the erc20 handler to transfer those token.

DeployMintAndApprove deploys a new erc20 contract, mints to the deployer, and approves the erc20 handler to transfer those token.

WaitForTx will query the chain at ExpectedBlockTime intervals, until a receipt is returned.