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, state_transition],
../beacon_chain/spec/[beaconstate, datatypes, digest, crypto],
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eth/db/kvstore,
# test utilies
./testutil, ./testblockutil
proc getStateRef(db: BeaconChainDB, root: Eth2Digest): NilableBeaconStateRef =
# load beaconstate the way BlockPool 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()
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suiteReport "Beacon chain DB" & preset():
wrappedTimedTest "empty database" & preset():
var
db = init(BeaconChainDB, kvStore MemStoreRef.init())
check:
db.getStateRef(Eth2Digest()).isNil
db.getBlock(Eth2Digest()).isNone
wrappedTimedTest "sanity check blocks" & preset():
var
db = init(BeaconChainDB, kvStore MemStoreRef.init())
let
signedBlock = SignedBeaconBlock()
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)
check:
db.getStateRoot(root, signedBlock.message.slot).get() == root
wrappedTimedTest "sanity check states" & preset():
var
db = init(BeaconChainDB, kvStore MemStoreRef.init())
let
state = BeaconStateRef()
root = hash_tree_root(state[])
db.putState(state[])
check:
db.containsState(root)
hash_tree_root(db.getStateRef(root)[]) == root
wrappedTimedTest "find ancestors" & preset():
var
db = init(BeaconChainDB, kvStore MemStoreRef.init())
let
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a0 = SignedBeaconBlock(message: BeaconBlock(slot: GENESIS_SLOT + 0))
a0r = hash_tree_root(a0.message)
a1 = SignedBeaconBlock(message:
BeaconBlock(slot: GENESIS_SLOT + 1, parent_root: a0r))
a1r = hash_tree_root(a1.message)
a2 = SignedBeaconBlock(message:
BeaconBlock(slot: GENESIS_SLOT + 2, parent_root: a1r))
a2r = hash_tree_root(a2.message)
doAssert toSeq(db.getAncestors(a0r)) == []
doAssert toSeq(db.getAncestors(a2r)) == []
db.putBlock(a2)
doAssert toSeq(db.getAncestors(a0r)) == []
doAssert toSeq(db.getAncestors(a2r)) == [(a2r, a2)]
db.putBlock(a1)
doAssert toSeq(db.getAncestors(a0r)) == []
doAssert toSeq(db.getAncestors(a2r)) == [(a2r, a2), (a1r, a1)]
db.putBlock(a0)
doAssert toSeq(db.getAncestors(a0r)) == [(a0r, a0)]
doAssert toSeq(db.getAncestors(a2r)) == [(a2r, a2), (a1r, a1), (a0r, a0)]
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 = init(BeaconChainDB, kvStore MemStoreRef.init())
let
state = initialize_beacon_state_from_eth1(
eth1BlockHash, 0, makeInitialDeposits(SLOTS_PER_EPOCH), {skipBlsValidation})
root = hash_tree_root(state[])
db.putState(state[])
check db.containsState(root)
let state2 = db.getStateRef(root)
check:
hash_tree_root(state2[]) == root