217 lines
8.7 KiB
Go
217 lines
8.7 KiB
Go
// Copyright 2016 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU 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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// go-ethereum 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 General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package main
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import (
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"io/ioutil"
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"math/big"
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"os"
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"path/filepath"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/params"
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)
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// Genesis block for nodes which don't care about the DAO fork (i.e. not configured)
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var daoOldGenesis = `{
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"alloc" : {},
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"coinbase" : "0x0000000000000000000000000000000000000000",
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"difficulty" : "0x20000",
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"extraData" : "",
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"gasLimit" : "0x2fefd8",
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"nonce" : "0x0000000000000042",
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"mixhash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
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"parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
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"timestamp" : "0x00",
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"config" : {}
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}`
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// Genesis block for nodes which actively oppose the DAO fork
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var daoNoForkGenesis = `{
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"alloc" : {},
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"coinbase" : "0x0000000000000000000000000000000000000000",
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"difficulty" : "0x20000",
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"extraData" : "",
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"gasLimit" : "0x2fefd8",
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"nonce" : "0x0000000000000042",
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"mixhash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
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"parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
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"timestamp" : "0x00",
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"config" : {
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"daoForkBlock" : 314,
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"daoForkSupport" : false
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}
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}`
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// Genesis block for nodes which actively support the DAO fork
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var daoProForkGenesis = `{
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"alloc" : {},
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"coinbase" : "0x0000000000000000000000000000000000000000",
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"difficulty" : "0x20000",
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"extraData" : "",
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"gasLimit" : "0x2fefd8",
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"nonce" : "0x0000000000000042",
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"mixhash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
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"parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
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"timestamp" : "0x00",
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"config" : {
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"daoForkBlock" : 314,
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"daoForkSupport" : true
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}
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}`
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var daoGenesisHash = common.HexToHash("5e1fc79cb4ffa4739177b5408045cd5d51c6cf766133f23f7cd72ee1f8d790e0")
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var daoGenesisForkBlock = big.NewInt(314)
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// TestDAOForkBlockNewChain tests that the DAO hard-fork number and the nodes support/opposition is correctly
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// set in the database after various initialization procedures and invocations.
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func TestDAOForkBlockNewChain(t *testing.T) {
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for _, arg := range []struct {
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testnet bool
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genesis string
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votes [][2]bool
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expectBlock *big.Int
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expectVote bool
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}{
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// Test DAO Default Mainnet
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{false, "", [][2]bool{{false, false}}, params.MainNetDAOForkBlock, true},
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// test DAO Support Mainnet
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{false, "", [][2]bool{{true, false}}, params.MainNetDAOForkBlock, true},
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// test DAO Oppose Mainnet
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{false, "", [][2]bool{{false, true}}, params.MainNetDAOForkBlock, false},
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// test DAO Switch To Support Mainnet
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{false, "", [][2]bool{{false, true}, {true, false}}, params.MainNetDAOForkBlock, true},
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// test DAO Switch To Oppose Mainnet
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{false, "", [][2]bool{{true, false}, {false, true}}, params.MainNetDAOForkBlock, false},
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// test DAO Default Testnet
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{true, "", [][2]bool{{false, false}}, params.TestNetDAOForkBlock, true},
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// test DAO Support Testnet
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{true, "", [][2]bool{{true, false}}, params.TestNetDAOForkBlock, true},
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// test DAO Oppose Testnet
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{true, "", [][2]bool{{false, true}}, params.TestNetDAOForkBlock, false},
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// test DAO Switch To Support Testnet
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{true, "", [][2]bool{{false, true}, {true, false}}, params.TestNetDAOForkBlock, true},
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// test DAO Switch To Oppose Testnet
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{true, "", [][2]bool{{true, false}, {false, true}}, params.TestNetDAOForkBlock, false},
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// test DAO Init Old Privnet
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{false, daoOldGenesis, [][2]bool{}, nil, false},
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// test DAO Default Old Privnet
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{false, daoOldGenesis, [][2]bool{{false, false}}, nil, false},
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// test DAO Support Old Privnet
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{false, daoOldGenesis, [][2]bool{{true, false}}, nil, true},
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// test DAO Oppose Old Privnet
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{false, daoOldGenesis, [][2]bool{{false, true}}, nil, false},
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// test DAO Switch To Support Old Privnet
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{false, daoOldGenesis, [][2]bool{{false, true}, {true, false}}, nil, true},
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// test DAO Switch To Oppose Old Privnet
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{false, daoOldGenesis, [][2]bool{{true, false}, {false, true}}, nil, false},
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// test DAO Init No Fork Privnet
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{false, daoNoForkGenesis, [][2]bool{}, daoGenesisForkBlock, false},
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// test DAO Default No Fork Privnet
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{false, daoNoForkGenesis, [][2]bool{{false, false}}, daoGenesisForkBlock, false},
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// test DAO Support No Fork Privnet
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{false, daoNoForkGenesis, [][2]bool{{true, false}}, daoGenesisForkBlock, true},
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// test DAO Oppose No Fork Privnet
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{false, daoNoForkGenesis, [][2]bool{{false, true}}, daoGenesisForkBlock, false},
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// test DAO Switch To Support No Fork Privnet
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{false, daoNoForkGenesis, [][2]bool{{false, true}, {true, false}}, daoGenesisForkBlock, true},
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// test DAO Switch To Oppose No Fork Privnet
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{false, daoNoForkGenesis, [][2]bool{{true, false}, {false, true}}, daoGenesisForkBlock, false},
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// test DAO Init Pro Fork Privnet
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{false, daoProForkGenesis, [][2]bool{}, daoGenesisForkBlock, true},
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// test DAO Default Pro Fork Privnet
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{false, daoProForkGenesis, [][2]bool{{false, false}}, daoGenesisForkBlock, true},
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// test DAO Support Pro Fork Privnet
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{false, daoProForkGenesis, [][2]bool{{true, false}}, daoGenesisForkBlock, true},
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// test DAO Oppose Pro Fork Privnet
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{false, daoProForkGenesis, [][2]bool{{false, true}}, daoGenesisForkBlock, false},
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// test DAO Switch To Support Pro Fork Privnet
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{false, daoProForkGenesis, [][2]bool{{false, true}, {true, false}}, daoGenesisForkBlock, true},
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// test DAO Switch To Oppose Pro Fork Privnet
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{false, daoProForkGenesis, [][2]bool{{true, false}, {false, true}}, daoGenesisForkBlock, false},
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} {
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testDAOForkBlockNewChain(t, arg.testnet, arg.genesis, arg.votes, arg.expectBlock, arg.expectVote)
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}
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}
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func testDAOForkBlockNewChain(t *testing.T, testnet bool, genesis string, votes [][2]bool, expectBlock *big.Int, expectVote bool) {
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// Create a temporary data directory to use and inspect later
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datadir := tmpdir(t)
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defer os.RemoveAll(datadir)
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// Start a Geth instance with the requested flags set and immediately terminate
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if genesis != "" {
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json := filepath.Join(datadir, "genesis.json")
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if err := ioutil.WriteFile(json, []byte(genesis), 0600); err != nil {
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t.Fatalf("failed to write genesis file: %v", err)
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}
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runGeth(t, "--datadir", datadir, "init", json).cmd.Wait()
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}
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for _, vote := range votes {
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args := []string{"--port", "0", "--maxpeers", "0", "--nodiscover", "--nat", "none", "--ipcdisable", "--datadir", datadir}
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if testnet {
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args = append(args, "--testnet")
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}
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if vote[0] {
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args = append(args, "--support-dao-fork")
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}
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if vote[1] {
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args = append(args, "--oppose-dao-fork")
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}
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geth := runGeth(t, append(args, []string{"--exec", "2+2", "console"}...)...)
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geth.cmd.Wait()
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}
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// Retrieve the DAO config flag from the database
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path := filepath.Join(datadir, "geth", "chaindata")
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if testnet && genesis == "" {
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path = filepath.Join(datadir, "testnet", "geth", "chaindata")
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}
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db, err := ethdb.NewLDBDatabase(path, 0, 0)
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if err != nil {
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t.Fatalf("failed to open test database: %v", err)
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}
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defer db.Close()
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genesisHash := common.HexToHash("0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3")
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if testnet {
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genesisHash = common.HexToHash("0x0cd786a2425d16f152c658316c423e6ce1181e15c3295826d7c9904cba9ce303")
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}
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if genesis != "" {
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genesisHash = daoGenesisHash
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}
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config, err := core.GetChainConfig(db, genesisHash)
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if err != nil {
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t.Fatalf("failed to retrieve chain config: %v", err)
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}
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// Validate the DAO hard-fork block number against the expected value
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if config.DAOForkBlock == nil {
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if expectBlock != nil {
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t.Errorf("dao hard-fork block mismatch: have nil, want %v", expectBlock)
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}
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} else if expectBlock == nil {
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t.Errorf("dao hard-fork block mismatch: have %v, want nil", config.DAOForkBlock)
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} else if config.DAOForkBlock.Cmp(expectBlock) != 0 {
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t.Errorf("dao hard-fork block mismatch: have %v, want %v", config.DAOForkBlock, expectBlock)
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}
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if config.DAOForkSupport != expectVote {
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t.Errorf("dao hard-fork support mismatch: have %v, want %v", config.DAOForkSupport, expectVote)
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}
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}
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