nimbus-eth2/tests/test_zero_signature.nim

63 lines
2.0 KiB
Nim

# beacon_chain
# Copyright (c) 2018-2021 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.used.}
import
std/strutils,
unittest2,
../beacon_chain/spec/[eth2_ssz_serialization, crypto],
../beacon_chain/spec/datatypes/base
# Sanity checks to make sure all the workarounds introduced
# to deal with https://github.com/status-im/nimbus-eth2/issues/374
# and https://github.com/ethereum/consensus-specs/issues/1396
# don't blow up.
suite "Zero signature sanity checks":
# See:
# - https://github.com/ethereum/consensus-specs/issues/1713
# - https://github.com/status-im/nimbus-eth2/pull/2733
test "SSZ serialization roundtrip of SignedBeaconBlockHeader":
# For the Genesis block only
# - https://github.com/status-im/nimbus-eth2/issues/396
let defaultBlockHeader = SignedBeaconBlockHeader()
check:
block:
var allZeros = true
for val in defaultBlockHeader.signature.blob:
allZeros = allZeros and val == 0
allZeros
let sszDefaultBlockHeader = SSZ.encode(defaultBlockHeader)
let deserBlockHeader =
SSZ.decode(sszDefaultBlockHeader, SignedBeaconBlockHeader)
check(defaultBlockHeader == deserBlockHeader)
test "default initialization of signatures":
block:
let sig = default(CookedSig)
doAssert sig.toValidatorSig().toHex() == "c" & '0'.repeat(191)
block:
let sig = AggregateSignature()
doAssert sig.toHex() == "c" & '0'.repeat(191)
block:
let sig = ValidatorSig()
doAssert sig.toHex() == '0'.repeat(192)
test "Zero signatures cannot be loaded into a BLS signature object":
let zeroSig = ValidatorSig()
let s = zeroSig.load()
check: s.isNone()