nimbus-eth1/tests/test_clique.nim

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# Nimbus
# Copyright (c) 2018-2019 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
std/[algorithm, sequtils, strformat, strutils],
../nimbus/p2p/[clique, clique/snapshot],
../nimbus/utils,
./test_clique/pool,
eth/keys,
stint,
unittest2
# clique/snapshot_test.go(99): func TestClique(t *testing.T) {
proc cliqueMain*(noisy = defined(debug)) =
## Clique PoA Snapshot
## ::
## Tests that Clique signer voting is evaluated correctly for various
## simple and complex scenarios, as well as that a few special corner
## cases fail correctly.
##
suite "Clique PoA Snapshot":
var
pool = newVoterPool().setDebug(noisy)
const
skipSet = {999}
testSet = {0 .. 999}
# clique/snapshot_test.go(379): for i, tt := range tests {
for tt in voterSamples.filterIt(it.id in testSet):
test &"Snapshots {tt.id:2}: {tt.info.substr(0,50)}...":
pool.say "\n"
if tt.id in skipSet:
skip()
else:
# Assemble a chain of headers from the cast votes
# see clique/snapshot_test.go(407): config := *params.TestChainConfig
pool
.resetVoterChain(tt.signers, tt.epoch)
# see clique/snapshot_test.go(425): for j, block := range blocks {
.appendVoter(tt.votes)
.commitVoterChain
# see clique/snapshot_test.go(476): snap, err := engine.snapshot( [..]
let topHeader = pool.topVoterHeader
var snap = pool.snapshot(topHeader.blockNumber, topHeader.hash, @[])
# see clique/snapshot_test.go(477): if err != nil {
if snap.isErr:
# Note that clique/snapshot_test.go does not verify _here_ against
# the scheduled test error -- rather this voting error is supposed
# to happen earlier (processed at clique/snapshot_test.go(467)) when
# assembling the block chain (sounds counter intuitive to the author
# of this source file as the scheduled errors are _clique_ related).
check snap.error[0] == tt.failure
else:
let
expected = tt.results.mapIt("@" & it).sorted
snapResult = pool.pp(snap.value.signers).sorted
pool.say "*** snap state=", snap.pp(16)
pool.say " result=[", snapResult.join(",") & "]"
pool.say " expected=[", expected.join(",") & "]"
# Verify the final list of signers against the expected ones
check snapResult == expected
when isMainModule:
cliqueMain()
# End