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 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 options, unittest, sequtils, strutils, eth/trie/[db],
../beacon_chain/[beacon_chain_db, ssz],
../beacon_chain/spec/[datatypes, digest, crypto]
suite "Beacon chain DB":
var
db = init(BeaconChainDB, newMemoryDB())
test "empty database":
check:
db.getState(Eth2Digest()).isNone
db.getBlock(Eth2Digest()).isNone
test "find ancestors":
var x: ValidatorSig
var y = init(ValidatorSig, x.getBytes())
check: x == y
let
a0 = BeaconBlock(slot: 0)
a0r = hash_tree_root_final(a0)
a1 = BeaconBlock(slot: 1, parent_root: a0r)
a1r = hash_tree_root_final(a1)
a2 = BeaconBlock(slot: 2, parent_root: a1r)
a2r = hash_tree_root_final(a2)
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)]