mirror of
https://github.com/ethereum/go-ethereum.git
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3fad5e1ab4
Introduce a new simulated backend implementation under ethclient/simulated and migrate bind-facing wrappers/tests to use it. Key changes: - Add the new backend entry points and behavior in ethclient/simulated, including chain control helpers used by tests (commit/rollback/fork/time adjustment). - Update legacy bind wrappers in accounts/abi/bind/backends to delegate to the new simulated backend while preserving old APIs. - Align bind v2/backend and utility tests to the new simulated backend client surface and transaction flow. - Refresh abigen/bind tests and shared interfaces impacted by the backend migration. Compatibility notes: - Keep backward-compatible wrapper constructors for existing contract test code. - Preserve legacy transaction paths in tests while supporting EIP-1559-aware flows where applicable. Validation: - Verified affected packages compile and pass tests. - Verified repository-wide go test ./... passes after follow-up compatibility fixes.
85 lines
3 KiB
Go
85 lines
3 KiB
Go
// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package backends
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import (
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"context"
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"os"
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"github.com/XinFinOrg/XDPoSChain/accounts"
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"github.com/XinFinOrg/XDPoSChain/accounts/keystore"
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"github.com/XinFinOrg/XDPoSChain/common"
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"github.com/XinFinOrg/XDPoSChain/core"
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"github.com/XinFinOrg/XDPoSChain/core/types"
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"github.com/XinFinOrg/XDPoSChain/ethclient/simulated"
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"github.com/XinFinOrg/XDPoSChain/params"
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)
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// SimulatedBackend is a simulated blockchain.
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// Deprecated: use package github.com/XinFinOrg/XDPoSChain/ethclient/simulated instead.
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type SimulatedBackend struct {
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*simulated.Backend
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}
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// Client returns a client that accesses the simulated chain.
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func (b *SimulatedBackend) Client() simulated.Client {
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return b.Backend.Client()
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}
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// Fork sets the head to a new block, which is based on the provided parentHash.
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func (b *SimulatedBackend) Fork(ctx context.Context, parentHash common.Hash) error {
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return b.Backend.Fork(parentHash)
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}
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// NewXDCSimulatedBackend creates a new backend for testing purpose.
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func NewXDCSimulatedBackend(alloc types.GenesisAlloc, gasLimit uint64, chainConfig *params.ChainConfig) *SimulatedBackend {
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b := simulated.New(alloc, gasLimit, chainConfig)
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return &SimulatedBackend{
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Backend: b,
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}
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}
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// NewXDCSimulatedBackend creates a new backend for testing purpose.
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//
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// A simulated backend always uses chainID 1337.
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//
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// Deprecated: please use simulated.Backend from package
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// github.com/XinFinOrg/XDPoSChain/ethclient/simulated instead.
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func NewSimulatedBackend(alloc core.GenesisAlloc, gasLimit uint64) *SimulatedBackend {
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b := simulated.New(alloc, gasLimit, params.AllEthashProtocolChanges)
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return &SimulatedBackend{
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Backend: b,
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}
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}
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func SimulateWalletAddressAndSignFn() (common.Address, func(account accounts.Account, hash []byte) ([]byte, error), error) {
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veryLightScryptN := 2
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veryLightScryptP := 1
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dir, _ := os.MkdirTemp("", "eth-SimulateWalletAddressAndSignFn-test")
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defer os.RemoveAll(dir)
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ks := keystore.NewKeyStore(dir, veryLightScryptN, veryLightScryptP)
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pass := "" // not used but required by API
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a1, err := ks.NewAccount(pass)
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if err != nil {
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return common.Address{}, nil, err
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}
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if err := ks.Unlock(a1, ""); err != nil {
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return a1.Address, nil, err
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}
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return a1.Address, ks.SignHash, nil
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}
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