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core: settable genesis nonce

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You can set the nonce of the block with `--genesisnonce`. When the
genesis nonce changes and it doesn't match with the first block in your
database it will fail. A new `datadir` must be given if the nonce of the
genesis block changes.
This commit is contained in:
obscuren
2015-06-08 12:12:13 +02:00
parent c6faa18ec9
commit 6244b10a8f
9 changed files with 84 additions and 28 deletions
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51
core/chain_manager_test.go
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@@ -29,6 +29,21 @@ func thePow() pow.PoW {
return pow
}
func theChainManager(db common.Database, t *testing.T) *ChainManager {
var eventMux event.TypeMux
genesis := GenesisBlock(0, db)
chainMan, err := NewChainManager(genesis, db, db, thePow(), &eventMux)
if err != nil {
t.Error("failed creating chainmanager:", err)
t.FailNow()
return nil
}
blockMan := NewBlockProcessor(db, db, nil, chainMan, &eventMux)
chainMan.SetProcessor(blockMan)
return chainMan
}
// Test fork of length N starting from block i
func testFork(t *testing.T, bman *BlockProcessor, i, N int, f func(td1, td2 *big.Int)) {
// switch databases to process the new chain
@@ -266,10 +281,7 @@ func TestChainInsertions(t *testing.T) {
t.FailNow()
}
var eventMux event.TypeMux
chainMan := NewChainManager(db, db, thePow(), &eventMux)
blockMan := NewBlockProcessor(db, db, nil, chainMan, &eventMux)
chainMan.SetProcessor(blockMan)
chainMan := theChainManager(db, t)
const max = 2
done := make(chan bool, max)
@@ -311,10 +323,9 @@ func TestChainMultipleInsertions(t *testing.T) {
t.FailNow()
}
}
var eventMux event.TypeMux
chainMan := NewChainManager(db, db, thePow(), &eventMux)
blockMan := NewBlockProcessor(db, db, nil, chainMan, &eventMux)
chainMan.SetProcessor(blockMan)
chainMan := theChainManager(db, t)
done := make(chan bool, max)
for i, chain := range chains {
// XXX the go routine would otherwise reference the same (chain[3]) variable and fail
@@ -339,8 +350,7 @@ func TestGetAncestors(t *testing.T) {
t.Skip() // travil fails.
db, _ := ethdb.NewMemDatabase()
var eventMux event.TypeMux
chainMan := NewChainManager(db, db, thePow(), &eventMux)
chainMan := theChainManager(db, t)
chain, err := loadChain("valid1", t)
if err != nil {
fmt.Println(err)
@@ -391,7 +401,7 @@ func chm(genesis *types.Block, db common.Database) *ChainManager {
func TestReorgLongest(t *testing.T) {
t.Skip("skipped while cache is removed")
db, _ := ethdb.NewMemDatabase()
genesis := GenesisBlock(db)
genesis := GenesisBlock(0, db)
bc := chm(genesis, db)
chain1 := makeChainWithDiff(genesis, []int{1, 2, 4}, 10)
@@ -411,7 +421,7 @@ func TestReorgLongest(t *testing.T) {
func TestReorgShortest(t *testing.T) {
t.Skip("skipped while cache is removed")
db, _ := ethdb.NewMemDatabase()
genesis := GenesisBlock(db)
genesis := GenesisBlock(0, db)
bc := chm(genesis, db)
chain1 := makeChainWithDiff(genesis, []int{1, 2, 3, 4}, 10)
@@ -431,7 +441,7 @@ func TestReorgShortest(t *testing.T) {
func TestInsertNonceError(t *testing.T) {
for i := 1; i < 25 && !t.Failed(); i++ {
db, _ := ethdb.NewMemDatabase()
genesis := GenesisBlock(db)
genesis := GenesisBlock(0, db)
bc := chm(genesis, db)
bc.processor = NewBlockProcessor(db, db, bc.pow, bc, bc.eventMux)
blocks := makeChain(bc.processor.(*BlockProcessor), bc.currentBlock, i, db, 0)
@@ -465,6 +475,21 @@ func TestInsertNonceError(t *testing.T) {
}
}
func TestGenesisMismatch(t *testing.T) {
db, _ := ethdb.NewMemDatabase()
var mux event.TypeMux
genesis := GenesisBlock(0, db)
_, err := NewChainManager(genesis, db, db, thePow(), &mux)
if err != nil {
t.Error(err)
}
genesis = GenesisBlock(1, db)
_, err = NewChainManager(genesis, db, db, thePow(), &mux)
if err == nil {
t.Error("expected genesis mismatch error")
}
}
// failpow returns false from Verify for a certain block number.
type failpow struct{ num uint64 }