nimbus-eth2/tests/test_beacon_chain_db.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 https://www.apache.org/licenses/LICENSE-2.0)
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or https://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.used.}
import options, unittest, sequtils,
../beacon_chain/[beacon_chain_db, extras, interop, ssz],
../beacon_chain/spec/[
beaconstate, datatypes, digest, crypto, state_transition, presets],
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eth/db/kvstore,
# test utilies
./testutil, ./testblockutil
proc getStateRef(db: BeaconChainDB, root: Eth2Digest): NilableBeaconStateRef =
# load beaconstate the way the block pool does it - into an existing instance
let res = BeaconStateRef()
if db.getState(root, res[], noRollback):
return res
template wrappedTimedTest(name: string, body: untyped) =
# `check` macro takes a copy of whatever it's checking, on the stack!
block: # Symbol namespacing
proc wrappedTest() =
timedTest name:
body
wrappedTest()
func withDigest(blck: TrustedBeaconBlock): TrustedSignedBeaconBlock =
TrustedSignedBeaconBlock(
message: blck,
root: hash_tree_root(blck)
)
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suiteReport "Beacon chain DB" & preset():
wrappedTimedTest "empty database" & preset():
var
db = BeaconChainDB.init(defaultRuntimePreset, "", inMemory = true)
check:
db.getStateRef(Eth2Digest()).isNil
db.getBlock(Eth2Digest()).isNone
wrappedTimedTest "sanity check blocks" & preset():
var
db = BeaconChainDB.init(defaultRuntimePreset, "", inMemory = true)
let
signedBlock = withDigest(TrustedBeaconBlock())
root = hash_tree_root(signedBlock.message)
db.putBlock(signedBlock)
check:
db.containsBlock(root)
db.getBlock(root).get() == signedBlock
db.putStateRoot(root, signedBlock.message.slot, root)
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var root2 = root
root2.data[0] = root.data[0] + 1
db.putStateRoot(root, signedBlock.message.slot + 1, root2)
check:
db.getStateRoot(root, signedBlock.message.slot).get() == root
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db.getStateRoot(root, signedBlock.message.slot + 1).get() == root2
db.close()
wrappedTimedTest "sanity check states" & preset():
var
db = BeaconChainDB.init(defaultRuntimePreset, "", inMemory = true)
let
state = BeaconStateRef()
root = hash_tree_root(state[])
db.putState(state[])
check:
db.containsState(root)
hash_tree_root(db.getStateRef(root)[]) == root
db.close()
wrappedTimedTest "find ancestors" & preset():
var
db = BeaconChainDB.init(defaultRuntimePreset, "", inMemory = true)
let
a0 = withDigest(
TrustedBeaconBlock(slot: GENESIS_SLOT + 0))
a1 = withDigest(
TrustedBeaconBlock(slot: GENESIS_SLOT + 1, parent_root: a0.root))
a2 = withDigest(
TrustedBeaconBlock(slot: GENESIS_SLOT + 2, parent_root: a1.root))
doAssert toSeq(db.getAncestors(a0.root)) == []
doAssert toSeq(db.getAncestors(a2.root)) == []
doAssert toSeq(db.getAncestorSummaries(a0.root)).len == 0
doAssert toSeq(db.getAncestorSummaries(a2.root)).len == 0
db.putBlock(a2)
doAssert toSeq(db.getAncestors(a0.root)) == []
doAssert toSeq(db.getAncestors(a2.root)) == [a2]
doAssert toSeq(db.getAncestorSummaries(a0.root)).len == 0
doAssert toSeq(db.getAncestorSummaries(a2.root)).len == 1
db.putBlock(a1)
doAssert toSeq(db.getAncestors(a0.root)) == []
doAssert toSeq(db.getAncestors(a2.root)) == [a2, a1]
doAssert toSeq(db.getAncestorSummaries(a0.root)).len == 0
doAssert toSeq(db.getAncestorSummaries(a2.root)).len == 2
db.putBlock(a0)
doAssert toSeq(db.getAncestors(a0.root)) == [a0]
doAssert toSeq(db.getAncestors(a2.root)) == [a2, a1, a0]
doAssert toSeq(db.getAncestorSummaries(a0.root)).len == 1
doAssert toSeq(db.getAncestorSummaries(a2.root)).len == 3
wrappedTimedTest "sanity check genesis roundtrip" & preset():
# This is a really dumb way of checking that we can roundtrip a genesis
# state. We've been bit by this because we've had a bug in the BLS
# serialization where an all-zero default-initialized bls signature could
# not be deserialized because the deserialization was too strict.
var
db = BeaconChainDB.init(defaultRuntimePreset, "", inMemory = true)
let
state = initialize_beacon_state_from_eth1(
defaultRuntimePreset, eth1BlockHash, 0,
makeInitialDeposits(SLOTS_PER_EPOCH), {skipBlsValidation})
root = hash_tree_root(state[])
db.putState(state[])
check db.containsState(root)
let state2 = db.getStateRef(root)
db.delState(root)
check not db.containsState(root)
db.close()
check:
hash_tree_root(state2[]) == root
wrappedTimedTest "sanity check state diff roundtrip" & preset():
var
db = BeaconChainDB.init(defaultRuntimePreset, "", inMemory = true)
# TODO htr(diff) probably not interesting/useful, but stand-in
let
stateDiff = BeaconStateDiff()
root = hash_tree_root(stateDiff)
db.putStateDiff(root, stateDiff)
check db.containsStateDiff(root)
let state2 = db.getStateDiff(root)
db.delStateDiff(root)
check not db.containsStateDiff(root)
db.close()
check:
hash_tree_root(state2[]) == root