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.
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import
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os, macros, json, strformat, strutils, parseutils, os, tables,
stew/byteutils, stew/ranges/typedranges, net, eth/[common, keys, rlp, p2p], unittest2,
testutils/markdown_reports,
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../nimbus/[config, transaction, utils, errors],
../nimbus/vm/interpreter/vm_forks,
../nimbus/db/state_db
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func revmap(x: Table[Fork, string]): Table[string, Fork] =
result = initTable[string, Fork]()
for k, v in x:
result[v] = k
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",
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FkConstantinople: "Constantinople",
FkPetersburg: "ConstantinopleFix",
FkIstanbul: "Istanbul"
}.toTable
supportedForks* = {
FkFrontier,
FkHomestead,
FkTangerine,
FkSpurious,
FkByzantium,
FkConstantinople,
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FkPetersburg,
FkIstanbul}
nameToFork* = revmap(forkNames)
func skipNothing*(folder: string, name: string): bool = false
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proc lacksSupportedForks*(fixtures: JsonNode): bool =
# XXX: Until Nimbus supports all forks, some of the GeneralStateTests won't work.
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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
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if fixture.kind == JObject and fixture.hasKey("transaction") and fixture.hasKey("post"):
result = true
for fork in supportedForks:
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if fixture["post"].hasKey(forkNames[fork]):
result = false
break
var status = initOrderedTable[string, OrderedTable[string, Status]]()
proc jsonTestImpl*(inputFolder, outputName: string, handler, skipTest: NimNode): NimNode {.compileTime.} =
let
testStatusIMPL = ident("testStatusIMPL")
testName = ident("testName")
# workaround for strformat in quote do: https://github.com/nim-lang/Nim/issues/8220
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symbol {.used.} = newIdentNode"symbol"
final {.used.} = newIdentNode"final"
name {.used.} = newIdentNode"name"
formatted {.used.} = newStrLitNode"{symbol[final]} {name:<64}{$final}{'\n'}"
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result = quote:
var filenames: seq[string] = @[]
for filename in walkDirRec("tests" / "fixtures" / `inputFolder`):
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 `skipTest`(last, name):
continue
filenames.add(filename)
for fname in filenames:
test fname:
{.gcsafe.}:
let
filename = `testName` # the first argument passed to the `test` template
(folder, name) = filename.splitPath()
last = folder.splitPath().tail
# we set this here because exceptions might be raised in the handler:
status[last][name] = Status.Fail
let fixtures = parseJSON(readFile(filename))
if fixtures.lacksSupportedForks:
status[last][name] = Status.Skip
skip()
else:
when not paralleliseTests:
echo filename
`handler`(fixtures, `testStatusIMPL`)
if `testStatusIMPL` == OK:
status[last][name] = Status.OK
suiteTeardown:
status.sort do (a: (string, OrderedTable[string, Status]),
b: (string, OrderedTable[string, Status])) -> int: cmp(a[0], b[0])
generateReport(`outputName`, status)
status.clear()
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macro jsonTest*(inputFolder, outputName: static[string], handler: untyped, skipTest: untyped = skipNothing): untyped =
result = jsonTestImpl(inputFolder, outputName, handler, skipTest)
macro jsonTest*(inputFolder: static[string], handler: untyped, skipTest: untyped = skipNothing): untyped =
result = jsonTestImpl(inputFolder, inputFolder, handler, skipTest)
func ethAddressFromHex*(s: string): EthAddress = hexToByteArray(s, result)
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func safeHexToSeqByte*(hexStr: string): seq[byte] =
if hexStr == "":
@[]
else:
hexStr.hexToSeqByte
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 setupStateDB*(wantedState: JsonNode, stateDB: var AccountStateDB) =
for ac, accountData in wantedState:
let account = ethAddressFromHex(ac)
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for slot, value in accountData{"storage"}:
stateDB.setStorage(account, fromHex(UInt256, slot), fromHex(UInt256, value.getStr))
let nonce = accountData{"nonce"}.getHexadecimalInt.AccountNonce
let code = accountData{"code"}.getStr.safeHexToSeqByte
let balance = UInt256.fromHex accountData{"balance"}.getStr
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stateDB.setNonce(account, nonce)
stateDB.setCode(account, code)
stateDB.setBalance(account, balance)
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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)
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if not found:
raise newException(ValidationError, "account not found: " & ac)
if actualValue != wantedValue:
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raise newException(ValidationError, &"{ac} storageDiff: [{slot}] {actualValue.toHex} != {wantedValue.toHex}")
let
wantedCode = hexToSeqByte(accountData{"code"}.getStr)
wantedBalance = UInt256.fromHex accountData{"balance"}.getStr
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wantedNonce = accountData{"nonce"}.getHexadecimalInt.AccountNonce
actualCode = stateDB.getCode(account)
actualBalance = stateDB.getBalance(account)
actualNonce = stateDB.getNonce(account)
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if wantedCode != actualCode:
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raise newException(ValidationError, &"{ac} codeDiff {wantedCode} != {actualCode}")
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if wantedBalance != actualBalance:
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raise newException(ValidationError, &"{ac} balanceDiff {wantedBalance.toHex} != {actualBalance.toHex}")
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if wantedNonce != actualNonce:
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raise newException(ValidationError, &"{ac} nonceDiff {wantedNonce.toHex} != {actualNonce.toHex}")
proc getFixtureTransaction*(j: JsonNode, dataIndex, gasIndex, valueIndex: int): Transaction =
result.accountNonce = j["nonce"].getHexadecimalInt.AccountNonce
result.gasPrice = j["gasPrice"].getHexadecimalInt
result.gasLimit = j["gasLimit"][gasIndex].getHexadecimalInt
# TODO: there are a couple fixtures which appear to distinguish between
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# 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
var secretKey = j["secretKey"].getStr
removePrefix(secretKey, "0x")
let privateKey = PrivateKey.fromHex(secretKey).tryGet()
let sig = sign(privateKey, result.rlpEncode).tryGet()
let raw = sig.toRaw()
result.R = fromBytesBE(Uint256, raw[0..31])
result.S = fromBytesBE(Uint256, raw[32..63])
result.V = raw[64] + 27.byte
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proc hashLogEntries*(logs: seq[Log]): string =
toLowerAscii("0x" & $keccakHash(rlp.encode(logs)))
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proc setupEthNode*(capabilities: varargs[ProtocolInfo, `protocolInfo`]): EthereumNode =
var
conf = getConfiguration()
if not conf.net.nodekey.verify():
conf.net.nodekey = PrivateKey.random().tryGet()
let keypair = conf.net.nodekey.toKeyPair().tryGet()
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var srvAddress: Address
srvAddress.ip = parseIpAddress("0.0.0.0")
srvAddress.tcpPort = Port(conf.net.bindPort)
srvAddress.udpPort = Port(conf.net.discPort)
result = newEthereumNode(
keypair, srvAddress, conf.net.networkId, nil, "nimbus 0.1.0",
addAllCapabilities = false)
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for capability in capabilities:
result.addCapability capability