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authorGustav Simonsson <gustav.simonsson@gmail.com>2015-09-18 23:15:59 +0800
committerGustav Simonsson <gustav.simonsson@gmail.com>2015-09-18 23:48:31 +0800
commit47ca6904b326165e394859f15bd2c374f7351847 (patch)
treeb94493ab89bddece7d5ddce8606ee438f7db6d11 /tests/block_test_util.go
parent075815e5ff98a1ba59be58f3081f222f5bb6da1f (diff)
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tests: use lastblockhash field to validate reorgs and block headers
Diffstat (limited to 'tests/block_test_util.go')
-rw-r--r--tests/block_test_util.go90
1 files changed, 49 insertions, 41 deletions
diff --git a/tests/block_test_util.go b/tests/block_test_util.go
index 8bda31683..3ca00bae8 100644
--- a/tests/block_test_util.go
+++ b/tests/block_test_util.go
@@ -44,9 +44,10 @@ import (
type BlockTest struct {
Genesis *types.Block
- Json *btJSON
- preAccounts map[string]btAccount
- postAccounts map[string]btAccount
+ Json *btJSON
+ preAccounts map[string]btAccount
+ postAccounts map[string]btAccount
+ lastblockhash string
}
type btJSON struct {
@@ -54,6 +55,7 @@ type btJSON struct {
GenesisBlockHeader btHeader
Pre map[string]btAccount
PostState map[string]btAccount
+ Lastblockhash string
}
type btBlock struct {
@@ -77,6 +79,7 @@ type btHeader struct {
MixHash string
Nonce string
Number string
+ Hash string
ParentHash string
ReceiptTrie string
SeedHash string
@@ -178,16 +181,24 @@ func runBlockTest(test *BlockTest) error {
return fmt.Errorf("InsertPreState: %v", err)
}
- err = test.TryBlocksInsert(ethereum.ChainManager())
+ cm := ethereum.ChainManager()
+ validBlocks, err := test.TryBlocksInsert(cm)
if err != nil {
return err
}
- newDB := ethereum.ChainManager().State()
+ lastblockhash := common.HexToHash(test.lastblockhash)
+ cmlast := cm.LastBlockHash()
+ if lastblockhash != cmlast {
+ return fmt.Errorf("lastblockhash validation mismatch: want: %x, have: %x", lastblockhash, cmlast)
+ }
+
+ newDB := cm.State()
if err = test.ValidatePostState(newDB); err != nil {
return fmt.Errorf("post state validation failed: %v", err)
}
- return nil
+
+ return test.ValidateImportedHeaders(cm, validBlocks)
}
func (test *BlockTest) makeEthConfig() *eth.Config {
@@ -265,8 +276,8 @@ func (t *BlockTest) InsertPreState(ethereum *eth.Ethereum) (*state.StateDB, erro
expected we are expected to ignore it and continue processing and then validate the
post state.
*/
-func (t *BlockTest) TryBlocksInsert(chainManager *core.ChainManager) error {
- blockNums := make(map[string]bool)
+func (t *BlockTest) TryBlocksInsert(chainManager *core.ChainManager) ([]btBlock, error) {
+ validBlocks := make([]btBlock, 0)
// insert the test blocks, which will execute all transactions
for _, b := range t.Json.Blocks {
cb, err := mustConvertBlock(b)
@@ -274,7 +285,7 @@ func (t *BlockTest) TryBlocksInsert(chainManager *core.ChainManager) error {
if b.BlockHeader == nil {
continue // OK - block is supposed to be invalid, continue with next block
} else {
- return fmt.Errorf("Block RLP decoding failed when expected to succeed: %v", err)
+ return nil, fmt.Errorf("Block RLP decoding failed when expected to succeed: %v", err)
}
}
// RLP decoding worked, try to insert into chain:
@@ -283,47 +294,23 @@ func (t *BlockTest) TryBlocksInsert(chainManager *core.ChainManager) error {
if b.BlockHeader == nil {
continue // OK - block is supposed to be invalid, continue with next block
} else {
- return fmt.Errorf("Block insertion into chain failed: %v", err)
+ return nil, fmt.Errorf("Block insertion into chain failed: %v", err)
}
}
if b.BlockHeader == nil {
- return fmt.Errorf("Block insertion should have failed")
+ return nil, fmt.Errorf("Block insertion should have failed")
}
// validate RLP decoding by checking all values against test file JSON
- if err = t.validateBlockHeader(b.BlockHeader, cb.Header()); err != nil {
- return fmt.Errorf("Deserialised block header validation failed: %v", err)
- }
-
- // validate the imported header against test file JSON
-
- /*
- TODO: currently test files do not contain information on what
- reorg is expected other than possibly the post state (which may
- or may not depend on a specific chain).
-
- discussed with winswega and it was agreed to add this information
- to the test files explicitly.
-
- meanwhile we skip header validation on blocks with the same block
- number as a prior block, since this test code cannot know what
- blocks are in the longest chain without making use of the very
- protocol rules the tests verify or rely on the correctness of the
- code that is being tested.
-
- */
- if !blockNums[b.BlockHeader.Number] {
- importedBlock := chainManager.CurrentBlock()
- if err = t.validateBlockHeader(b.BlockHeader, importedBlock.Header()); err != nil {
- return fmt.Errorf("Imported block header validation failed: %v", err)
- }
- blockNums[b.BlockHeader.Number] = true
+ if err = validateHeader(b.BlockHeader, cb.Header()); err != nil {
+ return nil, fmt.Errorf("Deserialised block header validation failed: %v", err)
}
+ validBlocks = append(validBlocks, b)
}
- return nil
+ return validBlocks, nil
}
-func (s *BlockTest) validateBlockHeader(h *btHeader, h2 *types.Header) error {
+func validateHeader(h *btHeader, h2 *types.Header) error {
expectedBloom := mustConvertBytes(h.Bloom)
if !bytes.Equal(expectedBloom, h2.Bloom.Bytes()) {
return fmt.Errorf("Bloom: want: %x have: %x", expectedBloom, h2.Bloom.Bytes())
@@ -439,6 +426,27 @@ func (t *BlockTest) ValidatePostState(statedb *state.StateDB) error {
return nil
}
+func (test *BlockTest) ValidateImportedHeaders(cm *core.ChainManager, validBlocks []btBlock) error {
+ // to get constant lookup when verifying block headers by hash (some tests have many blocks)
+ bmap := make(map[string]btBlock, len(test.Json.Blocks))
+ for _, b := range validBlocks {
+ bmap[b.BlockHeader.Hash] = b
+ }
+
+ // iterate over blocks backwards from HEAD and validate imported
+ // headers vs test file. some tests have reorgs, and we import
+ // block-by-block, so we can only validate imported headers after
+ // all blocks have been processed by ChainManager, as they may not
+ // be part of the longest chain until last block is imported.
+ for b := cm.CurrentBlock(); b != nil && b.NumberU64() != 0; b = cm.GetBlock(b.Header().ParentHash) {
+ bHash := common.Bytes2Hex(b.Hash().Bytes()) // hex without 0x prefix
+ if err := validateHeader(bmap[bHash].BlockHeader, b.Header()); err != nil {
+ return fmt.Errorf("Imported block header validation failed: %v", err)
+ }
+ }
+ return nil
+}
+
func convertBlockTests(in map[string]*btJSON) (map[string]*BlockTest, error) {
out := make(map[string]*BlockTest)
for name, test := range in {
@@ -461,7 +469,7 @@ func convertBlockTest(in *btJSON) (out *BlockTest, err error) {
err = fmt.Errorf("%v\n%s", recovered, buf)
}
}()
- out = &BlockTest{preAccounts: in.Pre, postAccounts: in.PostState, Json: in}
+ out = &BlockTest{preAccounts: in.Pre, postAccounts: in.PostState, Json: in, lastblockhash: in.Lastblockhash}
out.Genesis = mustConvertGenesis(in.GenesisBlockHeader)
return out, err
}