80 lines
3.5 KiB
Go
80 lines
3.5 KiB
Go
// Copyright 2019 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 testhelpers
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import (
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/consensus/ethash"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/params"
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)
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// MakeChain creates a chain of n blocks starting at and including parent.
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// the returned hash chain is ordered head->parent. In addition, every 3rd block
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// contains a transaction and every 5th an uncle to allow testing correct block
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// reassembly.
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func MakeChain(n int, parent *types.Block) ([]common.Hash, map[common.Hash]*types.Block, *core.BlockChain) {
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blocks, _ := core.GenerateChain(params.TestChainConfig, parent, ethash.NewFaker(), Testdb, n, testChainGen)
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chain, _ := core.NewBlockChain(Testdb, nil, params.TestChainConfig, ethash.NewFaker(), vm.Config{}, nil)
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hashes := make([]common.Hash, n+1)
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hashes[len(hashes)-1] = parent.Hash()
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blockm := make(map[common.Hash]*types.Block, n+1)
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blockm[parent.Hash()] = parent
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for i, b := range blocks {
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hashes[len(hashes)-i-2] = b.Hash()
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blockm[b.Hash()] = b
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}
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return hashes, blockm, chain
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}
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func testChainGen(i int, block *core.BlockGen) {
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signer := types.HomesteadSigner{}
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switch i {
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case 0:
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// In block 1, the test bank sends account #1 some ether.
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tx, _ := types.SignTx(types.NewTransaction(block.TxNonce(TestBankAddress), Account1Addr, big.NewInt(10000), params.TxGas, nil, nil), signer, TestBankKey)
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block.AddTx(tx)
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case 1:
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// In block 2, the test bank sends some more ether to account #1.
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// account1Addr passes it on to account #2.
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// account1Addr creates a test contract.
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tx1, _ := types.SignTx(types.NewTransaction(block.TxNonce(TestBankAddress), Account1Addr, big.NewInt(1000), params.TxGas, nil, nil), signer, TestBankKey)
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nonce := block.TxNonce(Account1Addr)
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tx2, _ := types.SignTx(types.NewTransaction(nonce, Account2Addr, big.NewInt(1000), params.TxGas, nil, nil), signer, Account1Key)
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nonce++
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tx3, _ := types.SignTx(types.NewContractCreation(nonce, big.NewInt(0), 1000000, big.NewInt(0), ContractCode), signer, Account1Key)
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ContractAddr = crypto.CreateAddress(Account1Addr, nonce) //0xaE9BEa628c4Ce503DcFD7E305CaB4e29E7476592
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block.AddTx(tx1)
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block.AddTx(tx2)
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block.AddTx(tx3)
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case 2:
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// Block 3 is empty but was mined by account #2.
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block.SetCoinbase(Account2Addr)
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//get function: 60cd2685
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//put function: c16431b9
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data := common.Hex2Bytes("C16431B900000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000003")
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tx, _ := types.SignTx(types.NewTransaction(block.TxNonce(TestBankAddress), ContractAddr, big.NewInt(0), 100000, nil, data), signer, TestBankKey)
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block.AddTx(tx)
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}
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}
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