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accounts, consensus, core, eth: make chain maker consensus agnostic (#15497)

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* accounts, consensus, core, eth: make chain maker consensus agnostic

* consensus, core: move CalcDifficulty to Engine interface

* consensus: add docs for calcDifficulty function

* consensus, core: minor comment fixups
This commit is contained in:
gary rong
2017-12-22 20:37:50 +08:00
committed by Péter Szilágyi
parent 9dbb8ef4aa
commit 5f8888e116
23 changed files with 145 additions and 99 deletions
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52
core/blockchain_test.go
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@ -57,7 +57,7 @@ func newTestBlockChain(fake bool) *BlockChain {
// Test fork of length N starting from block i
func testFork(t *testing.T, blockchain *BlockChain, i, n int, full bool, comparator func(td1, td2 *big.Int)) {
// Copy old chain up to #i into a new db
db, blockchain2, err := newCanonical(i, full)
db, blockchain2, err := newCanonical(ethash.NewFaker(), i, full)
if err != nil {
t.Fatal("could not make new canonical in testFork", err)
}
@ -81,12 +81,12 @@ func testFork(t *testing.T, blockchain *BlockChain, i, n int, full bool, compara
headerChainB []*types.Header
)
if full {
blockChainB = makeBlockChain(blockchain2.CurrentBlock(), n, db, forkSeed)
blockChainB = makeBlockChain(blockchain2.CurrentBlock(), n, ethash.NewFaker(), db, forkSeed)
if _, err := blockchain2.InsertChain(blockChainB); err != nil {
t.Fatalf("failed to insert forking chain: %v", err)
}
} else {
headerChainB = makeHeaderChain(blockchain2.CurrentHeader(), n, db, forkSeed)
headerChainB = makeHeaderChain(blockchain2.CurrentHeader(), n, ethash.NewFaker(), db, forkSeed)
if _, err := blockchain2.InsertHeaderChain(headerChainB, 1); err != nil {
t.Fatalf("failed to insert forking chain: %v", err)
}
@ -186,7 +186,7 @@ func TestLastBlock(t *testing.T) {
bchain := newTestBlockChain(false)
defer bchain.Stop()
block := makeBlockChain(bchain.CurrentBlock(), 1, bchain.chainDb, 0)[0]
block := makeBlockChain(bchain.CurrentBlock(), 1, ethash.NewFaker(), bchain.chainDb, 0)[0]
bchain.insert(block)
if block.Hash() != GetHeadBlockHash(bchain.chainDb) {
t.Errorf("Write/Get HeadBlockHash failed")
@ -202,7 +202,7 @@ func testExtendCanonical(t *testing.T, full bool) {
length := 5
// Make first chain starting from genesis
_, processor, err := newCanonical(length, full)
_, processor, err := newCanonical(ethash.NewFaker(), length, full)
if err != nil {
t.Fatalf("failed to make new canonical chain: %v", err)
}
@ -230,7 +230,7 @@ func testShorterFork(t *testing.T, full bool) {
length := 10
// Make first chain starting from genesis
_, processor, err := newCanonical(length, full)
_, processor, err := newCanonical(ethash.NewFaker(), length, full)
if err != nil {
t.Fatalf("failed to make new canonical chain: %v", err)
}
@ -260,7 +260,7 @@ func testLongerFork(t *testing.T, full bool) {
length := 10
// Make first chain starting from genesis
_, processor, err := newCanonical(length, full)
_, processor, err := newCanonical(ethash.NewFaker(), length, full)
if err != nil {
t.Fatalf("failed to make new canonical chain: %v", err)
}
@ -290,7 +290,7 @@ func testEqualFork(t *testing.T, full bool) {
length := 10
// Make first chain starting from genesis
_, processor, err := newCanonical(length, full)
_, processor, err := newCanonical(ethash.NewFaker(), length, full)
if err != nil {
t.Fatalf("failed to make new canonical chain: %v", err)
}
@ -317,7 +317,7 @@ func TestBrokenBlockChain(t *testing.T) { testBrokenChain(t, true) }
func testBrokenChain(t *testing.T, full bool) {
// Make chain starting from genesis
db, blockchain, err := newCanonical(10, full)
db, blockchain, err := newCanonical(ethash.NewFaker(), 10, full)
if err != nil {
t.Fatalf("failed to make new canonical chain: %v", err)
}
@ -325,12 +325,12 @@ func testBrokenChain(t *testing.T, full bool) {
// Create a forked chain, and try to insert with a missing link
if full {
chain := makeBlockChain(blockchain.CurrentBlock(), 5, db, forkSeed)[1:]
chain := makeBlockChain(blockchain.CurrentBlock(), 5, ethash.NewFaker(), db, forkSeed)[1:]
if err := testBlockChainImport(chain, blockchain); err == nil {
t.Errorf("broken block chain not reported")
}
} else {
chain := makeHeaderChain(blockchain.CurrentHeader(), 5, db, forkSeed)[1:]
chain := makeHeaderChain(blockchain.CurrentHeader(), 5, ethash.NewFaker(), db, forkSeed)[1:]
if err := testHeaderChainImport(chain, blockchain); err == nil {
t.Errorf("broken header chain not reported")
}
@ -523,7 +523,7 @@ func TestBlocksInsertNonceError(t *testing.T) { testInsertNonceError(t, true) }
func testInsertNonceError(t *testing.T, full bool) {
for i := 1; i < 25 && !t.Failed(); i++ {
// Create a pristine chain and database
db, blockchain, err := newCanonical(0, full)
db, blockchain, err := newCanonical(ethash.NewFaker(), 0, full)
if err != nil {
t.Fatalf("failed to create pristine chain: %v", err)
}
@ -536,7 +536,7 @@ func testInsertNonceError(t *testing.T, full bool) {
failNum uint64
)
if full {
blocks := makeBlockChain(blockchain.CurrentBlock(), i, db, 0)
blocks := makeBlockChain(blockchain.CurrentBlock(), i, ethash.NewFaker(), db, 0)
failAt = rand.Int() % len(blocks)
failNum = blocks[failAt].NumberU64()
@ -544,7 +544,7 @@ func testInsertNonceError(t *testing.T, full bool) {
blockchain.engine = ethash.NewFakeFailer(failNum)
failRes, err = blockchain.InsertChain(blocks)
} else {
headers := makeHeaderChain(blockchain.CurrentHeader(), i, db, 0)
headers := makeHeaderChain(blockchain.CurrentHeader(), i, ethash.NewFaker(), db, 0)
failAt = rand.Int() % len(headers)
failNum = headers[failAt].Number.Uint64()
@ -588,7 +588,7 @@ func TestFastVsFullChains(t *testing.T) {
genesis = gspec.MustCommit(gendb)
signer = types.NewEIP155Signer(gspec.Config.ChainId)
)
blocks, receipts := GenerateChain(gspec.Config, genesis, gendb, 1024, func(i int, block *BlockGen) {
blocks, receipts := GenerateChain(gspec.Config, genesis, ethash.NewFaker(), gendb, 1024, func(i int, block *BlockGen) {
block.SetCoinbase(common.Address{0x00})
// If the block number is multiple of 3, send a few bonus transactions to the miner
@ -673,7 +673,7 @@ func TestLightVsFastVsFullChainHeads(t *testing.T) {
genesis = gspec.MustCommit(gendb)
)
height := uint64(1024)
blocks, receipts := GenerateChain(gspec.Config, genesis, gendb, int(height), nil)
blocks, receipts := GenerateChain(gspec.Config, genesis, ethash.NewFaker(), gendb, int(height), nil)
// Configure a subchain to roll back
remove := []common.Hash{}
@ -781,7 +781,7 @@ func TestChainTxReorgs(t *testing.T) {
// - futureAdd: transaction added after the reorg has already finished
var pastAdd, freshAdd, futureAdd *types.Transaction
chain, _ := GenerateChain(gspec.Config, genesis, db, 3, func(i int, gen *BlockGen) {
chain, _ := GenerateChain(gspec.Config, genesis, ethash.NewFaker(), db, 3, func(i int, gen *BlockGen) {
switch i {
case 0:
pastDrop, _ = types.SignTx(types.NewTransaction(gen.TxNonce(addr2), addr2, big.NewInt(1000), bigTxGas, nil, nil), signer, key2)
@ -806,7 +806,7 @@ func TestChainTxReorgs(t *testing.T) {
defer blockchain.Stop()
// overwrite the old chain
chain, _ = GenerateChain(gspec.Config, genesis, db, 5, func(i int, gen *BlockGen) {
chain, _ = GenerateChain(gspec.Config, genesis, ethash.NewFaker(), db, 5, func(i int, gen *BlockGen) {
switch i {
case 0:
pastAdd, _ = types.SignTx(types.NewTransaction(gen.TxNonce(addr3), addr3, big.NewInt(1000), bigTxGas, nil, nil), signer, key3)
@ -875,7 +875,7 @@ func TestLogReorgs(t *testing.T) {
rmLogsCh := make(chan RemovedLogsEvent)
blockchain.SubscribeRemovedLogsEvent(rmLogsCh)
chain, _ := GenerateChain(params.TestChainConfig, genesis, db, 2, func(i int, gen *BlockGen) {
chain, _ := GenerateChain(params.TestChainConfig, genesis, ethash.NewFaker(), db, 2, func(i int, gen *BlockGen) {
if i == 1 {
tx, err := types.SignTx(types.NewContractCreation(gen.TxNonce(addr1), new(big.Int), big.NewInt(1000000), new(big.Int), code), signer, key1)
if err != nil {
@ -888,7 +888,7 @@ func TestLogReorgs(t *testing.T) {
t.Fatalf("failed to insert chain: %v", err)
}
chain, _ = GenerateChain(params.TestChainConfig, genesis, db, 3, func(i int, gen *BlockGen) {})
chain, _ = GenerateChain(params.TestChainConfig, genesis, ethash.NewFaker(), db, 3, func(i int, gen *BlockGen) {})
if _, err := blockchain.InsertChain(chain); err != nil {
t.Fatalf("failed to insert forked chain: %v", err)
}
@ -920,12 +920,12 @@ func TestReorgSideEvent(t *testing.T) {
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), vm.Config{})
defer blockchain.Stop()
chain, _ := GenerateChain(gspec.Config, genesis, db, 3, func(i int, gen *BlockGen) {})
chain, _ := GenerateChain(gspec.Config, genesis, ethash.NewFaker(), db, 3, func(i int, gen *BlockGen) {})
if _, err := blockchain.InsertChain(chain); err != nil {
t.Fatalf("failed to insert chain: %v", err)
}
replacementBlocks, _ := GenerateChain(gspec.Config, genesis, db, 4, func(i int, gen *BlockGen) {
replacementBlocks, _ := GenerateChain(gspec.Config, genesis, ethash.NewFaker(), db, 4, func(i int, gen *BlockGen) {
tx, err := types.SignTx(types.NewContractCreation(gen.TxNonce(addr1), new(big.Int), big.NewInt(1000000), new(big.Int), nil), signer, key1)
if i == 2 {
gen.OffsetTime(-9)
@ -992,7 +992,7 @@ func TestCanonicalBlockRetrieval(t *testing.T) {
bc := newTestBlockChain(true)
defer bc.Stop()
chain, _ := GenerateChain(bc.config, bc.genesisBlock, bc.chainDb, 10, func(i int, gen *BlockGen) {})
chain, _ := GenerateChain(bc.config, bc.genesisBlock, ethash.NewFaker(), bc.chainDb, 10, func(i int, gen *BlockGen) {})
var pend sync.WaitGroup
pend.Add(len(chain))
@ -1046,7 +1046,7 @@ func TestEIP155Transition(t *testing.T) {
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), vm.Config{})
defer blockchain.Stop()
blocks, _ := GenerateChain(gspec.Config, genesis, db, 4, func(i int, block *BlockGen) {
blocks, _ := GenerateChain(gspec.Config, genesis, ethash.NewFaker(), db, 4, func(i int, block *BlockGen) {
var (
tx *types.Transaction
err error
@ -1109,7 +1109,7 @@ func TestEIP155Transition(t *testing.T) {
// generate an invalid chain id transaction
config := &params.ChainConfig{ChainId: big.NewInt(2), EIP155Block: big.NewInt(2), HomesteadBlock: new(big.Int)}
blocks, _ = GenerateChain(config, blocks[len(blocks)-1], db, 4, func(i int, block *BlockGen) {
blocks, _ = GenerateChain(config, blocks[len(blocks)-1], ethash.NewFaker(), db, 4, func(i int, block *BlockGen) {
var (
tx *types.Transaction
err error
@ -1154,7 +1154,7 @@ func TestEIP161AccountRemoval(t *testing.T) {
blockchain, _ := NewBlockChain(db, gspec.Config, ethash.NewFaker(), vm.Config{})
defer blockchain.Stop()
blocks, _ := GenerateChain(gspec.Config, genesis, db, 3, func(i int, block *BlockGen) {
blocks, _ := GenerateChain(gspec.Config, genesis, ethash.NewFaker(), db, 3, func(i int, block *BlockGen) {
var (
tx *types.Transaction
err error