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nimbus-eth1/tests/test_helpers.nim

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# Nimbus
# Copyright (c) 2018 Status Research & Development GmbH
# 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.
import
os, macros, json, strformat, strutils, parseutils, ospaths, tables,
byteutils, eth_common, eth_keys, ranges/typedranges,
../nimbus/[vm_state, constants],
../nimbus/db/[db_chain, state_db],
../nimbus/transaction,
../nimbus/vm/interpreter/[gas_costs, vm_forks],
../tests/test_generalstate_failing
const
# from https://ethereum-tests.readthedocs.io/en/latest/test_types/state_tests.html
forkNames* = {
FkFrontier: "Frontier",
FkHomestead: "Homestead",
FkTangerine: "EIP150",
FkSpurious: "EIP158",
FkByzantium: "Byzantium",
}.toTable
supportedForks* = [FkHomestead]
type
Status* {.pure.} = enum OK, Fail, Skip
func slowTest*(folder: string, name: string): bool =
result =
(folder == "vmPerformance" and "loop" in name) or
folder == "stQuadraticComplexityTest" or
name in @["randomStatetest352.json", "randomStatetest1.json",
"randomStatetest32.json", "randomStatetest347.json",
"randomStatetest393.json", "randomStatetest626.json",
"CALLCODE_Bounds.json", "DELEGATECALL_Bounds3.json",
"CALLCODE_Bounds4.json", "CALL_Bounds.json",
"DELEGATECALL_Bounds2.json", "CALL_Bounds3.json",
"CALLCODE_Bounds2.json", "CALLCODE_Bounds3.json",
"DELEGATECALL_Bounds.json", "CALL_Bounds2a.json",
"CALL_Bounds2.json",
"CallToNameRegistratorMemOOGAndInsufficientBalance.json",
"CallToNameRegistratorTooMuchMemory0.json"]
func failIn32Bits(folder, name: string): bool =
return name in @[
"randomStatetest94.json",
"calldatacopy_dejavu.json",
"calldatacopy_dejavu2.json",
"codecopy_dejavu.json",
"codecopy_dejavu2.json",
"extcodecopy_dejavu.json",
"log1_dejavu.json",
"log2_dejavu.json",
"log3_dejavu.json",
"log4_dejavu.json",
"mload_dejavu.json",
"mstore_dejavu.json",
"mstroe8_dejavu.json",
"sha3_dejavu.json",
"HighGasLimit.json",
"OverflowGasRequire2.json",
"RevertInCreateInInit.json",
"FailedCreateRevertsDeletion.json",
# TODO: obvious theme; check returndatasize/returndatacopy
"call_ecrec_success_empty_then_returndatasize.json",
"call_then_call_value_fail_then_returndatasize.json",
"returndatacopy_after_failing_callcode.json",
"returndatacopy_after_failing_delegatecall.json",
"returndatacopy_after_failing_staticcall.json",
"returndatacopy_after_revert_in_staticcall.json",
"returndatacopy_after_successful_callcode.json",
"returndatacopy_after_successful_delegatecall.json",
"returndatacopy_after_successful_staticcall.json",
"returndatacopy_following_call.json",
"returndatacopy_following_failing_call.json",
"returndatacopy_following_revert.json",
"returndatacopy_following_too_big_transfer.json",
"returndatacopy_initial.json",
"returndatacopy_initial_256.json",
"returndatacopy_initial_big_sum.json",
"returndatacopy_overrun.json",
"returndatasize_after_failing_callcode.json",
"returndatasize_after_failing_staticcall.json",
"returndatasize_after_oog_after_deeper.json",
"returndatasize_after_successful_callcode.json",
"returndatasize_after_successful_delegatecall.json",
"returndatasize_after_successful_staticcall.json",
"returndatasize_bug.json",
"returndatasize_initial.json",
"returndatasize_initial_zero_read.json",
"call_then_create_successful_then_returndatasize.json",
"call_outsize_then_create_successful_then_returndatasize.json",
"returndatacopy_following_create.json",
"returndatacopy_following_revert_in_create.json",
"returndatacopy_following_successful_create.json",
"RevertOpcodeInCreateReturns.json",
"create_callprecompile_returndatasize.json",
"returndatacopy_0_0_following_successful_create.json",
"returndatasize_following_successful_create.json"
]
func allowedFailInCurrentBuild(folder, name: string): bool =
when sizeof(int) == 4:
if failIn32Bits(folder, name):
return true
return allowedFailingGeneralStateTest(folder, name)
func validTest*(folder: string, name: string): bool =
# we skip tests that are slow or expected to fail for now
result =
not slowTest(folder, name) and
not allowedFailInCurrentBuild(folder, name)
proc lacksSupportedForks*(filename: string): bool =
# XXX: Until Nimbus supports Byzantine or newer forks, as opposed
# to Homestead, ~1k of ~2.5k GeneralStateTests won't work.
let fixtures = parseJSON(readFile(filename))
var fixture: JsonNode
for label, child in fixtures:
fixture = child
break
# not all fixtures make a distinction between forks, so default to accepting
# them all, until we find the ones that specify forks in their "post" section
result = false
if fixture.kind == JObject and fixture.has_key("transaction") and fixture.has_key("post"):
result = true
for fork in supportedForks:
if fixture["post"].has_key(forkNames[fork]):
result = false
break
macro jsonTest*(s: static[string], handler: untyped): untyped =
let
testStatusIMPL = ident("testStatusIMPL")
# workaround for strformat in quote do: https://github.com/nim-lang/Nim/issues/8220
symbol = newIdentNode"symbol"
final = newIdentNode"final"
name = newIdentNode"name"
formatted = newStrLitNode"{symbol[final]} {name:<64}{$final}{'\n'}"
result = quote:
var filenames: seq[(string, string, string)] = @[]
var status = initOrderedTable[string, OrderedTable[string, Status]]()
for filename in walkDirRec("tests" / "fixtures" / `s`):
if not filename.endsWith(".json"):
continue
var (folder, name) = filename.splitPath()
let last = folder.splitPath().tail
if not status.hasKey(last):
status[last] = initOrderedTable[string, Status]()
status[last][name] = Status.Skip
if last.validTest(name) and not filename.lacksSupportedForks:
filenames.add((filename, last, name))
for child in filenames:
let (filename, folder, name) = child
# we set this here because exceptions might be raised in the handler:
status[folder][name] = Status.Fail
test filename:
echo folder / name
`handler`(parseJSON(readFile(filename)), `testStatusIMPL`)
if `testStatusIMPL` == OK:
status[folder][name] = Status.OK
status.sort do (a: (string, OrderedTable[string, Status]),
b: (string, OrderedTable[string, Status])) -> int: cmp(a[0], b[0])
let `symbol`: array[Status, string] = ["+", "-", " "]
var raw = ""
var okCountTotal = 0
var failCountTotal = 0
var skipCountTotal = 0
raw.add(`s` & "\n")
raw.add("===\n")
for folder, statuses in status:
raw.add("## " & folder & "\n")
raw.add("```diff\n")
var sortedStatuses = statuses
sortedStatuses.sort do (a: (string, Status), b: (string, Status)) -> int:
cmp(a[0], b[0])
var okCount = 0
var failCount = 0
var skipCount = 0
for `name`, `final` in sortedStatuses:
raw.add(&`formatted`)
case `final`:
of Status.OK: okCount += 1
of Status.Fail: failCount += 1
of Status.Skip: skipCount += 1
raw.add("```\n")
let sum = okCount + failCount + skipCount
okCountTotal += okCount
failCountTotal += failCount
skipCountTotal += skipCount
raw.add("OK: " & $okCount & "/" & $sum & " Fail: " & $failCount & "/" & $sum & " Skip: " & $skipCount & "/" & $sum & "\n")
let sumTotal = okCountTotal + failCountTotal + skipCountTotal
raw.add("\n---TOTAL---\n")
raw.add("OK: $1/$4 Fail: $2/$4 Skip: $3/$4\n" % [$okCountTotal, $failCountTotal, $skipCountTotal, $sumTotal])
writeFile(`s` & ".md", raw)
func ethAddressFromHex*(s: string): EthAddress = hexToByteArray(s, result)
func safeHexToSeqByte*(hexStr: string): seq[byte] =
if hexStr == "":
@[]
else:
hexStr.hexToSeqByte
proc setupStateDB*(wantedState: JsonNode, stateDB: var AccountStateDB) =
for ac, accountData in wantedState:
let account = ethAddressFromHex(ac)
for slot, value in accountData{"storage"}:
stateDB.setStorage(account, fromHex(UInt256, slot), fromHex(UInt256, value.getStr))
let nonce = accountData{"nonce"}.getStr.parseHexInt.AccountNonce
let code = accountData{"code"}.getStr.safeHexToSeqByte.toRange
let balance = UInt256.fromHex accountData{"balance"}.getStr
stateDB.setNonce(account, nonce)
stateDB.setCode(account, code)
stateDB.setBalance(account, balance)
proc verifyStateDB*(wantedState: JsonNode, stateDB: ReadOnlyStateDB) =
for ac, accountData in wantedState:
let account = ethAddressFromHex(ac)
for slot, value in accountData{"storage"}:
let
slotId = UInt256.fromHex slot
wantedValue = UInt256.fromHex value.getStr
let (actualValue, found) = stateDB.getStorage(account, slotId)
doAssert found
doAssert actualValue == wantedValue, &"{actualValue.toHex} != {wantedValue.toHex}"
let
wantedCode = hexToSeqByte(accountData{"code"}.getStr).toRange
wantedBalance = UInt256.fromHex accountData{"balance"}.getStr
wantedNonce = accountData{"nonce"}.getInt.AccountNonce
actualCode = stateDB.getCode(account)
actualBalance = stateDB.getBalance(account)
actualNonce = stateDB.getNonce(account)
doAssert wantedCode == actualCode, &"{wantedCode} != {actualCode}"
doAssert wantedBalance == actualBalance, &"{wantedBalance.toHex} != {actualBalance.toHex}"
doAssert wantedNonce == actualNonce, &"{wantedNonce.toHex} != {actualNonce.toHex}"
func getHexadecimalInt*(j: JsonNode): int64 =
# parseutils.parseHex works with int which will overflow in 32 bit
var data: StUInt[64]
data = fromHex(StUInt[64], j.getStr)
result = cast[int64](data)
proc getFixtureTransaction*(j: JsonNode, dataIndex, gasIndex, valueIndex: int): Transaction =
result.accountNonce = j["nonce"].getStr.parseHexInt.AccountNonce
result.gasPrice = j["gasPrice"].getStr.parseHexInt
result.gasLimit = j["gasLimit"][gasIndex].getStr.parseHexInt
# TODO: there are a couple fixtures which appear to distinguish between
# empty and 0 transaction.to; check/verify whether correct conditions.
let rawTo = j["to"].getStr
if rawTo == "":
result.to = "0x".parseAddress
result.isContractCreation = true
else:
result.to = rawTo.parseAddress
result.isContractCreation = false
result.value = fromHex(UInt256, j["value"][valueIndex].getStr)
result.payload = j["data"][dataIndex].getStr.safeHexToSeqByte
proc getFixtureTransactionSender*(j: JsonNode): EthAddress =
var secretKey = j["secretKey"].getStr
removePrefix(secretKey, "0x")
let privateKey = initPrivateKey(secretKey)
var pubKey: PublicKey
let transaction = j.getFixtureTransaction(0, 0, 0)
if recoverSignatureKey(signMessage(privateKey, transaction.rlpEncode),
transaction.txHashNoSignature.data,
pubKey) == EthKeysStatus.Success:
return pubKey.toCanonicalAddress()
else:
# XXX: appropriate failure mode; probably raise something
discard
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