nimbus-eth1/tests/test_blockchain_json.nim

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# Nimbus
# Copyright (c) 2018-2023 Status Research & Development GmbH
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# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
# http://www.apache.org/licenses/LICENSE-2.0)
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
# http://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed except
# according to those terms.
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import
std/[json, os, tables, strutils, options],
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unittest2,
eth/rlp, eth/trie/trie_defs,
stew/byteutils,
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./test_helpers, ./test_allowed_to_fail,
../premix/parser, test_config,
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../nimbus/[vm_state, vm_types, errors, constants],
../nimbus/db/accounts_cache,
../nimbus/utils/utils,
../nimbus/core/[executor, validate, pow/header],
../stateless/[tree_from_witness, witness_types],
../tools/common/helpers as chp,
../tools/evmstate/helpers,
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../nimbus/common/common
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type
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# trick the rlp decoder
# so we can separate the body and header
EthHeader = object
header: BlockHeader
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SealEngine = enum
NoProof
Ethash
TestBlock = object
goodBlock: bool
blockRLP : Blob
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header : BlockHeader
body : BlockBody
hasException: bool
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Tester = object
lastBlockHash: Hash256
genesisHeader: BlockHeader
blocks : seq[TestBlock]
sealEngine : Option[SealEngine]
debugMode : bool
trace : bool
vmState : BaseVMState
debugData : JsonNode
network : string
postStateHash: Hash256
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var pow = PowRef.new
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proc testFixture(node: JsonNode, testStatusIMPL: var TestStatus, debugMode = false, trace = false)
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func normalizeNumber(n: JsonNode): JsonNode =
let str = n.getStr
if str == "0x":
result = newJString("0x0")
elif str == "0x0":
result = n
elif str == "0x00":
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result = newJString("0x0")
elif str[2] == '0':
var i = 2
while str[i] == '0':
inc i
result = newJString("0x" & str.substr(i))
else:
result = n
func normalizeData(n: JsonNode): JsonNode =
if n.getStr() == "":
result = newJString("0x")
else:
result = n
func normalizeBlockHeader(node: JsonNode): JsonNode =
for k, v in node:
case k
of "bloom": node["logsBloom"] = v
of "coinbase": node["miner"] = v
of "uncleHash": node["sha3Uncles"] = v
of "receiptTrie": node["receiptsRoot"] = v
of "transactionsTrie": node["transactionsRoot"] = v
of "number", "difficulty", "gasUsed",
"gasLimit", "timestamp", "baseFeePerGas":
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node[k] = normalizeNumber(v)
of "extraData":
node[k] = normalizeData(v)
else: discard
result = node
proc parseHeader(blockHeader: JsonNode, testStatusIMPL: var TestStatus): BlockHeader =
result = normalizeBlockHeader(blockHeader).parseBlockHeader
var blockHash: Hash256
blockHeader.fromJson "hash", blockHash
check blockHash == hash(result)
proc parseBlocks(blocks: JsonNode): seq[TestBlock] =
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for fixture in blocks:
var t: TestBlock
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for key, value in fixture:
case key
of "blockHeader":
# header is absent in bad block
t.goodBlock = true
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of "rlp":
fixture.fromJson "rlp", t.blockRLP
of "transactions", "uncleHeaders",
"blocknumber", "chainname", "chainnetwork":
discard
of "transactionSequence":
var noError = true
for tx in value:
let valid = tx["valid"].getStr == "true"
noError = noError and valid
doAssert(noError == false, "NOT A VALID TEST CASE")
else:
doAssert("expectException" in key, key)
t.hasException = true
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result.add t
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proc parseTester(fixture: JsonNode, testStatusIMPL: var TestStatus): Tester =
result.blocks = parseBlocks(fixture["blocks"])
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fixture.fromJson "lastblockhash", result.lastBlockHash
if "genesisRLP" in fixture:
var genesisRLP: Blob
fixture.fromJson "genesisRLP", genesisRLP
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result.genesisHeader = rlp.decode(genesisRLP, EthBlock).header
else:
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result.genesisHeader = parseHeader(fixture["genesisBlockHeader"], testStatusIMPL)
var goodBlock = true
for h in result.blocks:
goodBlock = goodBlock and h.goodBlock
check goodBlock == false
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if "sealEngine" in fixture:
result.sealEngine = some(parseEnum[SealEngine](fixture["sealEngine"].getStr))
if "postStateHash" in fixture:
result.postStateHash.data = hexToByteArray[32](fixture["postStateHash"].getStr)
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result.network = fixture["network"].getStr
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proc blockWitness(vmState: BaseVMState, chainDB: ChainDBRef) =
let rootHash = vmState.stateDB.rootHash
let witness = vmState.buildWitness()
let fork = vmState.fork
let flags = if fork >= FKSpurious: {wfEIP170} else: {}
# build tree from witness
var db = newMemoryDB()
when defined(useInputStream):
var input = memoryInput(witness)
var tb = initTreeBuilder(input, db, flags)
else:
var tb = initTreeBuilder(witness, db, flags)
let root = tb.buildTree()
# compare the result
if root != rootHash:
raise newException(ValidationError, "Invalid trie generated from block witness")
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proc importBlock(tester: var Tester, com: CommonRef,
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tb: TestBlock, checkSeal, validation: bool) =
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let parentHeader = com.db.getBlockHeader(tb.header.parentHash)
let td = some(com.db.getScore(tb.header.parentHash))
com.hardForkTransition(tb.header.blockNumber, td, some(tb.header.timestamp))
Redesign of BaseVMState descriptor (#923) * Redesign of BaseVMState descriptor why: BaseVMState provides an environment for executing transactions. The current descriptor also provides data that cannot generally be known within the execution environment, e.g. the total gasUsed which is available not before after all transactions have finished. Also, the BaseVMState constructor has been replaced by a constructor that does not need pre-initialised input of the account database. also: Previous constructor and some fields are provided with a deprecated annotation (producing a lot of noise.) * Replace legacy directives in production sources * Replace legacy directives in unit test sources * fix CI (missing premix update) * Remove legacy directives * chase CI problem * rebased * Re-introduce 'AccountsCache' constructor optimisation for 'BaseVmState' re-initialisation why: Constructing a new 'AccountsCache' descriptor can be avoided sometimes when the current state root is properly positioned already. Such a feature existed already as the update function 'initStateDB()' for the 'BaseChanDB' where the accounts cache was linked into this desctiptor. The function 'initStateDB()' was removed and re-implemented into the 'BaseVmState' constructor without optimisation. The old version was of restricted use as a wrong accounts cache state would unconditionally throw an exception rather than conceptually ask for a remedy. The optimised 'BaseVmState' re-initialisation has been implemented for the 'persistBlocks()' function. also: moved some test helpers to 'test/replay' folder * Remove unused & undocumented fields from Chain descriptor why: Reduces attack surface in general & improves reading the code.
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tester.vmState = BaseVMState.new(
parentHeader,
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tb.header,
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com,
Redesign of BaseVMState descriptor (#923) * Redesign of BaseVMState descriptor why: BaseVMState provides an environment for executing transactions. The current descriptor also provides data that cannot generally be known within the execution environment, e.g. the total gasUsed which is available not before after all transactions have finished. Also, the BaseVMState constructor has been replaced by a constructor that does not need pre-initialised input of the account database. also: Previous constructor and some fields are provided with a deprecated annotation (producing a lot of noise.) * Replace legacy directives in production sources * Replace legacy directives in unit test sources * fix CI (missing premix update) * Remove legacy directives * chase CI problem * rebased * Re-introduce 'AccountsCache' constructor optimisation for 'BaseVmState' re-initialisation why: Constructing a new 'AccountsCache' descriptor can be avoided sometimes when the current state root is properly positioned already. Such a feature existed already as the update function 'initStateDB()' for the 'BaseChanDB' where the accounts cache was linked into this desctiptor. The function 'initStateDB()' was removed and re-implemented into the 'BaseVmState' constructor without optimisation. The old version was of restricted use as a wrong accounts cache state would unconditionally throw an exception rather than conceptually ask for a remedy. The optimised 'BaseVmState' re-initialisation has been implemented for the 'persistBlocks()' function. also: moved some test helpers to 'test/replay' folder * Remove unused & undocumented fields from Chain descriptor why: Reduces attack surface in general & improves reading the code.
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(if tester.trace: {TracerFlags.EnableTracing} else: {}),
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)
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if validation:
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let rc = com.validateHeaderAndKinship(
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tb.header, tb.body, checkSeal, pow)
if rc.isErr:
raise newException(
ValidationError, "validateHeaderAndKinship: " & rc.error)
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let res = tester.vmState.processBlockNotPoA(tb.header, tb.body)
if res == ValidationResult.Error:
if not (tb.hasException or (not tb.goodBlock)):
raise newException(ValidationError, "process block validation")
else:
if tester.vmState.generateWitness():
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blockWitness(tester.vmState, com.db)
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discard com.db.persistHeaderToDb(tb.header,
com.consensus == ConsensusType.POS)
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proc applyFixtureBlockToChain(tester: var Tester, tb: var TestBlock,
com: CommonRef, checkSeal, validation: bool) =
var rlp = rlpFromBytes(tb.blockRLP)
tb.header = rlp.read(EthHeader).header
tb.body = rlp.readRecordType(BlockBody, false)
tester.importBlock(com, tb, checkSeal, validation)
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func shouldCheckSeal(tester: Tester): bool =
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if tester.sealEngine.isSome:
result = tester.sealEngine.get() != NoProof
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proc collectDebugData(tester: var Tester) =
if tester.vmState.isNil:
return
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let vmState = tester.vmState
let tracingResult = if tester.trace: vmState.getTracingResult() else: %[]
tester.debugData.add %{
"blockNumber": %($vmState.blockNumber),
"structLogs": tracingResult,
}
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proc runTester(tester: var Tester, com: CommonRef, testStatusIMPL: var TestStatus) =
discard com.db.persistHeaderToDb(tester.genesisHeader,
com.consensus == ConsensusType.POS)
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check com.db.getCanonicalHead().blockHash == tester.genesisHeader.blockHash
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let checkSeal = tester.shouldCheckSeal
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if tester.debugMode:
tester.debugData = newJArray()
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for idx, tb in tester.blocks:
if tb.goodBlock:
try:
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tester.applyFixtureBlockToChain(
tester.blocks[idx], com, checkSeal, validation = false)
# manually validating
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let res = com.validateHeaderAndKinship(
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tb.header, tb.body, checkSeal, pow)
check res.isOk
when defined(noisy):
if res.isErr:
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debugEcho "blockNumber : ", tb.header.blockNumber
debugEcho "fork : ", com.toHardFork(tb.header.blockNumber)
debugEcho "error message: ", res.error
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debugEcho "consensusType: ", com.consensus
except:
debugEcho "FATAL ERROR(WE HAVE BUG): ", getCurrentExceptionMsg()
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else:
var noError = true
try:
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tester.applyFixtureBlockToChain(tester.blocks[idx],
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com, checkSeal, validation = true)
except ValueError, ValidationError, BlockNotFound, RlpError:
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# failure is expected on this bad block
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check (tb.hasException or (not tb.goodBlock))
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noError = false
if tester.debugMode:
tester.debugData.add %{
"exception": %($getCurrentException().name),
"msg": %getCurrentExceptionMsg()
}
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# Block should have caused a validation error
check noError == false
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if tester.debugMode:
tester.collectDebugData()
proc dumpAccount(stateDB: ReadOnlyStateDB, address: EthAddress, name: string): JsonNode =
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result = %{
"name": %name,
"address": %($address),
"nonce": %toHex(stateDB.getNonce(address)),
"balance": %stateDB.getBalance(address).toHex(),
"codehash": %($stateDB.getCodeHash(address)),
"storageRoot": %($stateDB.getStorageRoot(address))
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}
proc dumpDebugData(tester: Tester, vmState: BaseVMState, accountList: JsonNode): JsonNode =
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var accounts = newJObject()
var i = 0
for ac, _ in accountList:
let account = ethAddressFromHex(ac)
accounts[$account] = dumpAccount(vmState.readOnlyStateDB, account, "acc" & $i)
inc i
%{
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"debugData": tester.debugData,
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"accounts": accounts
}
proc accountList(fixture: JsonNode): JsonNode =
if fixture["postState"].kind == JObject:
fixture["postState"]
else:
fixture["pre"]
proc debugDataFromAccountList(tester: Tester, fixture: JsonNode): JsonNode =
let accountList = fixture.accountList
let vmState = tester.vmState
if vmState.isNil:
%{"debugData": tester.debugData}
else:
dumpDebugData(tester, vmState, accountList)
proc debugDataFromPostStateHash(tester: Tester): JsonNode =
var
accounts = newJObject()
accountList = newSeq[EthAddress]()
vmState = tester.vmState
for address in vmState.stateDB.addresses:
accountList.add address
for i, ac in accountList:
accounts[ac.toHex] = dumpAccount(vmState.readOnlyStateDB, ac, "acc" & $i)
%{
"debugData": tester.debugData,
"postStateHash": %($vmState.readOnlyStateDB.rootHash),
"expectedStateHash": %($tester.postStateHash),
"accounts": accounts
}
proc dumpDebugData(tester: Tester, fixture: JsonNode, fixtureName: string, fixtureIndex: int, success: bool) =
let debugData = if tester.postStateHash != Hash256():
debugDataFromPostStateHash(tester)
else:
debugDataFromAccountList(tester, fixture)
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let status = if success: "_success" else: "_failed"
writeFile("debug_" & fixtureName & "_" & $fixtureIndex & status & ".json", debugData.pretty())
proc testFixture(node: JsonNode, testStatusIMPL: var TestStatus, debugMode = false, trace = false) =
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# 1 - mine the genesis block
# 2 - loop over blocks:
# - apply transactions
# - mine block
# 3 - diff resulting state with expected state
# 4 - check that all previous blocks were valid
let specifyIndex = test_config.getConfiguration().index.get(0)
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var fixtureIndex = 0
var fixtureTested = false
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for fixtureName, fixture in node:
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inc fixtureIndex
if specifyIndex > 0 and fixtureIndex != specifyIndex:
continue
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var tester = parseTester(fixture, testStatusIMPL)
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Redesign of BaseVMState descriptor (#923) * Redesign of BaseVMState descriptor why: BaseVMState provides an environment for executing transactions. The current descriptor also provides data that cannot generally be known within the execution environment, e.g. the total gasUsed which is available not before after all transactions have finished. Also, the BaseVMState constructor has been replaced by a constructor that does not need pre-initialised input of the account database. also: Previous constructor and some fields are provided with a deprecated annotation (producing a lot of noise.) * Replace legacy directives in production sources * Replace legacy directives in unit test sources * fix CI (missing premix update) * Remove legacy directives * chase CI problem * rebased * Re-introduce 'AccountsCache' constructor optimisation for 'BaseVmState' re-initialisation why: Constructing a new 'AccountsCache' descriptor can be avoided sometimes when the current state root is properly positioned already. Such a feature existed already as the update function 'initStateDB()' for the 'BaseChanDB' where the accounts cache was linked into this desctiptor. The function 'initStateDB()' was removed and re-implemented into the 'BaseVmState' constructor without optimisation. The old version was of restricted use as a wrong accounts cache state would unconditionally throw an exception rather than conceptually ask for a remedy. The optimised 'BaseVmState' re-initialisation has been implemented for the 'persistBlocks()' function. also: moved some test helpers to 'test/replay' folder * Remove unused & undocumented fields from Chain descriptor why: Reduces attack surface in general & improves reading the code.
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let
pruneTrie = test_config.getConfiguration().pruning
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memDB = newMemoryDb()
stateDB = AccountsCache.init(memDB, emptyRlpHash, pruneTrie)
config = getChainConfig(tester.network)
com = CommonRef.new(memDB, config, pruneTrie)
Redesign of BaseVMState descriptor (#923) * Redesign of BaseVMState descriptor why: BaseVMState provides an environment for executing transactions. The current descriptor also provides data that cannot generally be known within the execution environment, e.g. the total gasUsed which is available not before after all transactions have finished. Also, the BaseVMState constructor has been replaced by a constructor that does not need pre-initialised input of the account database. also: Previous constructor and some fields are provided with a deprecated annotation (producing a lot of noise.) * Replace legacy directives in production sources * Replace legacy directives in unit test sources * fix CI (missing premix update) * Remove legacy directives * chase CI problem * rebased * Re-introduce 'AccountsCache' constructor optimisation for 'BaseVmState' re-initialisation why: Constructing a new 'AccountsCache' descriptor can be avoided sometimes when the current state root is properly positioned already. Such a feature existed already as the update function 'initStateDB()' for the 'BaseChanDB' where the accounts cache was linked into this desctiptor. The function 'initStateDB()' was removed and re-implemented into the 'BaseVmState' constructor without optimisation. The old version was of restricted use as a wrong accounts cache state would unconditionally throw an exception rather than conceptually ask for a remedy. The optimised 'BaseVmState' re-initialisation has been implemented for the 'persistBlocks()' function. also: moved some test helpers to 'test/replay' folder * Remove unused & undocumented fields from Chain descriptor why: Reduces attack surface in general & improves reading the code.
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setupStateDB(fixture["pre"], stateDB)
stateDB.persist()
check stateDB.rootHash == tester.genesisHeader.stateRoot
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tester.debugMode = debugMode
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tester.trace = trace
var success = true
try:
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tester.runTester(com, testStatusIMPL)
let header = com.db.getCanonicalHead()
let lastBlockHash = header.blockHash
check lastBlockHash == tester.lastBlockHash
success = lastBlockHash == tester.lastBlockHash
if tester.postStateHash != Hash256():
let rootHash = tester.vmState.stateDB.rootHash
if tester.postStateHash != rootHash:
raise newException(ValidationError, "incorrect postStateHash, expect=" &
$rootHash & ", get=" &
$tester.postStateHash
)
elif lastBlockHash == tester.lastBlockHash:
# multiple chain, we are using the last valid canonical
# state root to test against 'postState'
let stateDB = AccountsCache.init(memDB, header.stateRoot, pruneTrie)
verifyStateDB(fixture["postState"], ReadOnlyStateDB(stateDB))
success = lastBlockHash == tester.lastBlockHash
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except ValidationError as E:
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echo fixtureName, " ERROR: ", E.msg
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success = false
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if tester.debugMode:
tester.dumpDebugData(fixture, fixtureName, fixtureIndex, success)
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fixtureTested = true
check success == true
if not fixtureTested:
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echo test_config.getConfiguration().testSubject, " not tested at all, wrong index?"
if specifyIndex <= 0 or specifyIndex > node.len:
echo "Maximum subtest available: ", node.len
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proc blockchainJsonMain*(debugMode = false) =
const
legacyFolder = "eth_tests" / "LegacyTests" / "Constantinople" / "BlockchainTests"
newFolder = "eth_tests" / "BlockchainTests"
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let config = test_config.getConfiguration()
if config.testSubject == "" or not debugMode:
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# run all test fixtures
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if config.legacy:
suite "block chain json tests":
jsonTest(legacyFolder, "BlockchainTests", testFixture, skipBCTests)
else:
suite "new block chain json tests":
jsonTest(newFolder, "newBlockchainTests", testFixture, skipNewBCTests)
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else:
# execute single test in debug mode
if config.testSubject.len == 0:
echo "missing test subject"
quit(QuitFailure)
let folder = if config.legacy: legacyFolder else: newFolder
let path = "tests" / "fixtures" / folder
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let n = json.parseFile(path / config.testSubject)
var testStatusIMPL: TestStatus
testFixture(n, testStatusIMPL, debugMode = true, config.trace)
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when isMainModule:
var message: string
## Processing command line arguments
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if test_config.processArguments(message) != test_config.Success:
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echo message
quit(QuitFailure)
else:
if len(message) > 0:
echo message
quit(QuitSuccess)
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blockchainJsonMain(true)
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# lastBlockHash -> every fixture has it, hash of a block header
# genesisRLP -> NOT every fixture has it, rlp bytes of genesis block header
# _info -> every fixture has it, can be omitted
# pre, postState -> every fixture has it, prestate and post state
# genesisHeader -> every fixture has it
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# network -> every fixture has it
# # EIP150 247
# # ConstantinopleFix 286
# # Homestead 256
# # Frontier 396
# # Byzantium 263
# # EIP158ToByzantiumAt5 1
# # EIP158 233
# # HomesteadToDaoAt5 4
# # Constantinople 285
# # HomesteadToEIP150At5 1
# # FrontierToHomesteadAt5 7
# # ByzantiumToConstantinopleFixAt5 1
# sealEngine -> NOT every fixture has it
# # NoProof 1709
# # Ethash 112
# blocks -> every fixture has it, an array of blocks ranging from 1 block to 303 blocks
# # transactions 6230 can be empty
# # # to 6089 -> "" if contractCreation
# # # value 6089
# # # gasLimit 6089 -> "gas"
# # # s 6089
# # # r 6089
# # # gasPrice 6089
# # # v 6089
# # # data 6089 -> "input"
# # # nonce 6089
# # blockHeader 6230 can be not present, e.g. bad rlp
# # uncleHeaders 6230 can be empty
# # rlp 6810 has rlp but no blockheader, usually has exception
# # blocknumber 2733
# # chainname 1821 -> 'A' to 'H', and 'AA' to 'DD'
# # chainnetwork 21 -> all values are "Frontier"
# # expectExceptionALL 420
# # # UncleInChain 55
# # # InvalidTimestamp 42
# # # InvalidGasLimit 42
# # # InvalidNumber 42
# # # InvalidDifficulty 35
# # # InvalidBlockNonce 28
# # # InvalidUncleParentHash 26
# # # ExtraDataTooBig 21
# # # InvalidStateRoot 21
# # # ExtraDataIncorrect 19
# # # UnknownParent 16
# # # TooMuchGasUsed 14
# # # InvalidReceiptsStateRoot 9
# # # InvalidUnclesHash 7
# # # UncleIsBrother 7
# # # UncleTooOld 7
# # # InvalidTransactionsRoot 7
# # # InvalidGasUsed 7
# # # InvalidLogBloom 7
# # # TooManyUncles 7
# # # OutOfGasIntrinsic 1
# # expectExceptionEIP150 17
# # # TooMuchGasUsed 7
# # # InvalidReceiptsStateRoot 7
# # # InvalidStateRoot 3
# # expectExceptionByzantium 17
# # # InvalidStateRoot 10
# # # TooMuchGasUsed 7
# # expectExceptionHomestead 17
# # # InvalidReceiptsStateRoot 7
# # # BlockGasLimitReached 7
# # # InvalidStateRoot 3
# # expectExceptionConstantinople 14
# # # InvalidStateRoot 7
# # # TooMuchGasUsed 7
# # expectExceptionEIP158 14
# # # TooMuchGasUsed 7
# # # InvalidReceiptsStateRoot 7
# # expectExceptionFrontier 14
# # # InvalidReceiptsStateRoot 7
# # # BlockGasLimitReached 7
# # expectExceptionConstantinopleFix 14
# # # InvalidStateRoot 7
# # # TooMuchGasUsed 7