nimbus-eth1/tests/test_precompiles.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
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unittest2, ../nimbus/vm/precompiles, json, stew/byteutils, test_helpers, os, tables,
strformat, strutils, eth/trie/db, eth/common, ../nimbus/db/db_chain,
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../nimbus/[vm_types, vm_state], ../nimbus/vm/computation, macros,
../nimbus/vm/interpreter/vm_forks
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proc initAddress(i: byte): EthAddress = result[19] = i
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template doTest(fixture: JsonNode, fork: Fork, address: PrecompileAddresses): untyped =
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for test in fixture:
let
blockNum = 1.u256 # TODO: Check other forks
header = BlockHeader(blockNumber: blockNum)
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expectedErr = test.hasKey("ExpectedError")
expected = if test.hasKey("Expected"): hexToSeqByte(test["Expected"].getStr) else: @[]
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dataStr = test["Input"].getStr
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data = if dataStr.len > 0: dataStr.hexToSeqByte else: @[]
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vmState = newBaseVMState(header.stateRoot, header, newBaseChainDB(newMemoryDb()))
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gas = 1_000_000_000.GasInt
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gasPrice = 1.GasInt
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sender = initAddress(0x00)
toAddress = initAddress(address.byte)
gasCost = if test.hasKey("Gas"): test["Gas"].getInt else: -1
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vmState.setupTxContext(
origin = sender,
gasPrice = gasPrice
)
var
message = Message(
kind: evmcCall,
gas: gas,
sender: sender,
contractAddress: toAddress,
codeAddress: toAddress,
value: 0.u256,
data: data
)
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comp = newComputation(vmState, message)
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let initialGas = comp.gasMeter.gasRemaining
discard execPrecompiles(comp, fork)
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if expectedErr:
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check comp.isError
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else:
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let c = comp.output == expected
if not c: echo "Output : " & comp.output.toHex & "\nExpected: " & expected.toHex
check c
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if gasCost >= 0:
let gasFee = initialGas - comp.gasMeter.gasRemaining
if gasFee != gasCost:
debugEcho "GAS: ", gasFee, " ", gasCost
check gasFee == gasCost
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proc testFixture(fixtures: JsonNode, testStatusIMPL: var TestStatus) =
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let
label = fixtures["func"].getStr
fork = parseEnum[Fork](fixtures["fork"].getStr.toLowerAscii)
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data = fixtures["data"]
case toLowerAscii(label)
of "ecrecover": data.doTest(fork, paEcRecover)
of "sha256" : data.doTest(fork, paSha256)
of "ripemd" : data.doTest(fork, paRipeMd160)
of "identity" : data.doTest(fork, paIdentity)
of "modexp" : data.doTest(fork, paModExp)
of "bn256add" : data.doTest(fork, paEcAdd)
of "bn256mul" : data.doTest(fork, paEcMul)
of "ecpairing": data.doTest(fork, paPairing)
of "blake2f" : data.doTest(fork, paBlake2bf)
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of "blsg1add" : data.doTest(fork, paBlsG1Add)
of "blsg1mul" : data.doTest(fork, paBlsG1Mul)
of "blsg1multiexp" : data.doTest(fork, paBlsG1MultiExp)
of "blsg2add" : data.doTest(fork, paBlsG2Add)
of "blsg2mul" : data.doTest(fork, paBlsG2Mul)
of "blsg2multiexp": data.doTest(fork, paBlsG2MultiExp)
of "blspairing": data.doTest(fork, paBlsPairing)
of "blsmapg1": data.doTest(fork, paBlsMapG1)
of "blsmapg2": data.doTest(fork, paBlsMapG2)
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else:
echo "Unknown test vector '" & $label & "'"
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testStatusIMPL = SKIPPED
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proc precompilesMain*() =
suite "Precompiles":
jsonTest("PrecompileTests", testFixture)
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when isMainModule:
precompilesMain()