backends

package
v1.4.8 Latest Latest
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Published: Jun 24, 2016 License: GPL-3.0 Imports: 15 Imported by: 0

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func NewNilBackend added in v1.4.0

func NewNilBackend() bind.ContractBackend

NewNilBackend creates a new binding backend that can be used for instantiation but will panic on any invocation. Its sole purpose is to help testing.

func NewRPCBackend added in v1.4.0

func NewRPCBackend(client rpc.Client) bind.ContractBackend

NewRPCBackend creates a new binding backend to an RPC provider that can be used to interact with remote contracts.

Types

type SimulatedBackend

type SimulatedBackend struct {
	// contains filtered or unexported fields
}

SimulatedBackend implements bind.ContractBackend, simulating a blockchain in the background. Its main purpose is to allow easily testing contract bindings.

func NewSimulatedBackend

func NewSimulatedBackend(accounts ...core.GenesisAccount) *SimulatedBackend

NewSimulatedBackend creates a new binding backend using a simulated blockchain for testing purposes.

func (*SimulatedBackend) Commit

func (b *SimulatedBackend) Commit()

Commit imports all the pending transactions as a single block and starts a fresh new state.

func (*SimulatedBackend) ContractCall added in v1.4.0

func (b *SimulatedBackend) ContractCall(contract common.Address, data []byte, pending bool) ([]byte, error)

ContractCall implements ContractCaller.ContractCall, executing the specified contract with the given input data.

func (*SimulatedBackend) EstimateGasLimit added in v1.4.0

func (b *SimulatedBackend) EstimateGasLimit(sender common.Address, contract *common.Address, value *big.Int, data []byte) (*big.Int, error)

EstimateGasLimit implements ContractTransactor.EstimateGasLimit, executing the requested code against the currently pending block/state and returning the used gas.

func (*SimulatedBackend) HasCode added in v1.4.5

func (b *SimulatedBackend) HasCode(contract common.Address, pending bool) (bool, error)

HasCode implements ContractVerifier.HasCode, checking whether there is any code associated with a certain account in the blockchain.

func (*SimulatedBackend) PendingAccountNonce added in v1.4.0

func (b *SimulatedBackend) PendingAccountNonce(account common.Address) (uint64, error)

PendingAccountNonce implements ContractTransactor.PendingAccountNonce, retrieving the nonce currently pending for the account.

func (*SimulatedBackend) Rollback

func (b *SimulatedBackend) Rollback()

Rollback aborts all pending transactions, reverting to the last committed state.

func (*SimulatedBackend) SendTransaction

func (b *SimulatedBackend) SendTransaction(tx *types.Transaction) error

SendTransaction implements ContractTransactor.SendTransaction, delegating the raw transaction injection to the remote node.

func (*SimulatedBackend) SuggestGasPrice

func (b *SimulatedBackend) SuggestGasPrice() (*big.Int, error)

SuggestGasPrice implements ContractTransactor.SuggestGasPrice. Since the simulated chain doens't have miners, we just return a gas price of 1 for any call.

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