nimbus-eth1/tests/test_beacon/test_7_abort_and_backstep.nim

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# Nimbus
# Copyright (c) 2023-2024 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.
import
unittest2,
stew/byteutils,
./setup_env,
../../nimbus/sync/beacon/skeleton_main,
../../nimbus/sync/beacon/skeleton_utils,
../../nimbus/sync/beacon/skeleton_db
proc ccm(cc: NetworkParams) =
cc.config.terminalTotalDifficulty = Opt.some(262000.u256)
cc.genesis.extraData = hexToSeqByte("0x000000000000000000")
cc.genesis.difficulty = 1.u256
proc test7*() =
suite "should abort filling the canonical chain and backstep if the terminal block is invalid":
let env = setupEnv(extraValidation = true, ccm)
let skel = SkeletonRef.new(env.chain)
test "skel open ok":
let res = skel.open()
check res.isOk
if res.isErr:
debugEcho res.error
check false
break
let
genesis = env.chain.com.genesisHeader
block1 = env.chain.com.header(1, genesis, genesis,
"6BD9564DD3F4028E3E56F62F1BE52EC8F893CC4FD7DB75DB6A1DC3EB2858998C")
block2 = env.chain.com.header(2, block1, block1,
"32DAA84E151F4C8C6BD4D9ADA4392488FFAFD42ACDE1E9C662B3268C911A5CCC")
block3PoW = env.chain.com.header(3, block2, block2)
block4InvalidPoS = header(4, block3PoW, block3PoW, 0)
emptyBody = emptyBody()
test "put body":
for header in [block1, block2, block3PoW, block4InvalidPoS]:
let res = skel.putBody(header, emptyBody)
check res.isOk
test "canonical height should be at genesis":
skel.initSyncT(block4InvalidPoS, true)
skel.putBlocksT([block3PoW, block2], 2, {})
check skel.blockHeight == 0
test "canonical height should stop at block 2":
# (valid terminal block), since block 3 is invalid (past ttd)
skel.putBlocksT([block1], 1, {FillCanonical})
check skel.blockHeight == 2
test "Subchain should have been backstepped to 4":
check skel.last.tail == 4