nimbus-eth1/tests/test_precompiles.nim

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2018-10-10 16:27:00 +00:00
# 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
unittest, ../nimbus/vm/precompiles, json, byteutils, test_helpers, ospaths, tables,
strformat, strutils, eth_trie/[types, memdb], eth_common, ../nimbus/db/[db_chain, state_db],
../nimbus/[constants, vm_types, vm_state], ../nimbus/vm/[computation, message], macros
proc initAddress(i: byte): EthAddress = result[19] = i
template doTest(fixture: JsonNode, address: byte, action: untyped): untyped =
for test in fixture:
let
blockNum = 1.u256 # TODO: Check other forks
header = BlockHeader(blockNumber: blockNum)
expected = test["expected"].getStr.hexToSeqByte
var addressBytes = newSeq[byte](32)
addressBytes[31] = address # TODO: Endian
var
# Data has the address injected at the start to simulate the real call.
dataStr = test["input"].getStr
data = if dataStr.len > 0: dataStr.hexToSeqByte else: @[]
memDb = newMemDB()
vmState = newBaseVMState(header, newBaseChainDB(newMemoryDb()))
gas = 1_000_000.GasInt
gasPrice = 1.GasInt
sender: EthAddress
to = initAddress(address)
message = newMessage(gas, gasPrice, to, sender, 0.u256, data, @[])
computation = newBaseComputation(vmState, header.blockNumber, message)
echo "Running ", action.astToStr, " - ", test["name"]
`action`(computation)
let c = computation.rawOutput == expected
if not c: echo "Output : " & computation.rawOutput.toHex & "\nExpected: " & expected.toHex
check c
proc testFixture(fixtures: JsonNode, testStatusIMPL: var TestStatus) =
for label, child in fixtures:
case toLowerAscii(label)
of "ecrecover": child.doTest(paEcRecover.ord, ecRecover)
of "sha256": child.doTest(paSha256.ord, sha256)
of "ripemd": child.doTest(paRipeMd160.ord, ripemd160)
of "identity": child.doTest(paIdentity.ord, identity)
of "modexp": child.doTest(paModExp.ord, modexp)
of "bn256add": child.doTest(paEcAdd.ord, bn256ECAdd)
of "bn256mul": child.doTest(paEcMul.ord, bn256ECMul)
of "ecpairing": child.doTest(paPairing.ord, bn256ecPairing)
else:
#raise newException(ValueError, "Unknown test vector '" & $label & "'")
echo "Unknown test vector '" & $label & "'"
suite "Precompiles":
jsonTest("PrecompileTests", testFixture)