567 lines
18 KiB
Nim
567 lines
18 KiB
Nim
# beacon_chain
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# Copyright (c) 2018-2021 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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{.used.}
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import
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chronicles,
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std/[options, sequtils],
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unittest2,
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stew/assign2,
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eth/keys,
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../beacon_chain/spec/datatypes/base,
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../beacon_chain/spec/[beaconstate, forks, helpers, state_transition],
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../beacon_chain/beacon_node_types,
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../beacon_chain/[beacon_chain_db],
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../beacon_chain/consensus_object_pools/[
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blockchain_dag, block_quarantine, block_clearance],
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./testutil, ./testdbutil, ./testblockutil
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func `$`(x: BlockRef): string =
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$x.root
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proc pruneAtFinalization(dag: ChainDAGRef) =
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if dag.needStateCachesAndForkChoicePruning():
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dag.pruneStateCachesDAG()
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suite "BlockRef and helpers" & preset():
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test "isAncestorOf sanity" & preset():
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let
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s0 = BlockRef(slot: Slot(0))
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s1 = BlockRef(slot: Slot(1), parent: s0)
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s2 = BlockRef(slot: Slot(2), parent: s1)
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check:
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s0.isAncestorOf(s0)
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s0.isAncestorOf(s1)
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s0.isAncestorOf(s2)
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s1.isAncestorOf(s1)
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s1.isAncestorOf(s2)
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not s2.isAncestorOf(s0)
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not s2.isAncestorOf(s1)
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not s1.isAncestorOf(s0)
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test "get_ancestor sanity" & preset():
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let
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s0 = BlockRef(slot: Slot(0))
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s1 = BlockRef(slot: Slot(1), parent: s0)
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s2 = BlockRef(slot: Slot(2), parent: s1)
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s4 = BlockRef(slot: Slot(4), parent: s2)
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check:
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s0.get_ancestor(Slot(0)) == s0
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s0.get_ancestor(Slot(1)) == s0
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s1.get_ancestor(Slot(0)) == s0
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s1.get_ancestor(Slot(1)) == s1
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s4.get_ancestor(Slot(0)) == s0
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s4.get_ancestor(Slot(1)) == s1
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s4.get_ancestor(Slot(2)) == s2
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s4.get_ancestor(Slot(3)) == s2
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s4.get_ancestor(Slot(4)) == s4
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test "epochAncestor sanity" & preset():
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let
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s0 = BlockRef(slot: Slot(0))
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var cur = s0
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for i in 1..SLOTS_PER_EPOCH * 2:
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cur = BlockRef(slot: Slot(i), parent: cur)
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let ancestor = cur.epochAncestor(cur.slot.epoch)
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check:
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ancestor.epoch == cur.slot.epoch
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ancestor.blck != cur # should have selected a parent
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ancestor.blck.epochAncestor(cur.slot.epoch) == ancestor
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ancestor.blck.epochAncestor(ancestor.blck.slot.epoch) != ancestor
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suite "BlockSlot and helpers" & preset():
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test "atSlot sanity" & preset():
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let
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s0 = BlockRef(slot: Slot(0))
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s1 = BlockRef(slot: Slot(1), parent: s0)
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s2 = BlockRef(slot: Slot(2), parent: s1)
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s4 = BlockRef(slot: Slot(4), parent: s2)
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check:
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s0.atSlot(Slot(0)).blck == s0
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s0.atSlot(Slot(0)) == s1.atSlot(Slot(0))
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s1.atSlot(Slot(1)).blck == s1
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s4.atSlot(Slot(0)).blck == s0
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test "parent sanity" & preset():
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let
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s0 = BlockRef(slot: Slot(0))
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s00 = BlockSlot(blck: s0, slot: Slot(0))
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s01 = BlockSlot(blck: s0, slot: Slot(1))
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s2 = BlockRef(slot: Slot(2), parent: s0)
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s22 = BlockSlot(blck: s2, slot: Slot(2))
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s24 = BlockSlot(blck: s2, slot: Slot(4))
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check:
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s00.parent == BlockSlot(blck: nil, slot: Slot(0))
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s01.parent == s00
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s01.parentOrSlot == s00
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s22.parent == s01
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s22.parentOrSlot == BlockSlot(blck: s0, slot: Slot(2))
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s24.parent == BlockSlot(blck: s2, slot: Slot(3))
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s24.parent.parent == s22
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suite "Block pool processing" & preset():
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setup:
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var
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db = makeTestDB(SLOTS_PER_EPOCH)
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dag = init(ChainDAGRef, defaultRuntimeConfig, db, {})
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quarantine = QuarantineRef.init(keys.newRng())
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nilPhase0Callback: OnPhase0BlockAdded
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state = newClone(dag.headState.data)
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cache = StateCache()
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rewards = RewardInfo()
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att0 = makeFullAttestations(state[], dag.tail.root, 0.Slot, cache)
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b1 = addTestBlock(state[], dag.tail.root, cache, attestations = att0)
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b2 = addTestBlock(state[], b1.root, cache)
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test "getRef returns nil for missing blocks":
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check:
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dag.getRef(default Eth2Digest) == nil
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test "loading tail block works" & preset():
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let
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b0 = dag.get(dag.tail.root)
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check:
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b0.isSome()
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test "Simple block add&get" & preset():
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let
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b1Add = dag.addRawBlock(quarantine, b1, nilPhase0Callback)
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b1Get = dag.get(b1.root)
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check:
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b1Get.isSome()
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b1Get.get().refs.root == b1.root
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b1Add[].root == b1Get.get().refs.root
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dag.heads.len == 1
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dag.heads[0] == b1Add[]
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let
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b2Add = dag.addRawBlock(quarantine, b2, nilPhase0Callback)
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b2Get = dag.get(b2.root)
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er = dag.findEpochRef(b1Add[], b1Add[].slot.epoch)
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validators = getStateField(dag.headState.data, validators).lenu64()
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check:
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b2Get.isSome()
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b2Get.get().refs.root == b2.root
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b2Add[].root == b2Get.get().refs.root
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dag.heads.len == 1
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dag.heads[0] == b2Add[]
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not er.isNil
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# Same epoch - same epochRef
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er == dag.findEpochRef(b2Add[], b2Add[].slot.epoch)
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# Different epoch that was never processed
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dag.findEpochRef(b1Add[], b1Add[].slot.epoch + 1).isNil
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er.validatorKey(0'u64).isSome()
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er.validatorKey(validators - 1).isSome()
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er.validatorKey(validators).isNone()
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# Skip one slot to get a gap
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check:
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process_slots(
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defaultRuntimeConfig, state[], getStateField(state[], slot) + 1, cache,
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rewards, {})
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let
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b4 = addTestBlock(state[], b2.root, cache)
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b4Add = dag.addRawBlock(quarantine, b4, nilPhase0Callback)
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check:
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b4Add[].parent == b2Add[]
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dag.updateHead(b4Add[], quarantine)
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dag.pruneAtFinalization()
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var blocks: array[3, BlockRef]
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check:
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dag.getBlockRange(Slot(0), 1, blocks.toOpenArray(0, 0)) == 0
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blocks[0..<1] == [dag.tail]
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dag.getBlockRange(Slot(0), 1, blocks.toOpenArray(0, 1)) == 0
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blocks[0..<2] == [dag.tail, b1Add[]]
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dag.getBlockRange(Slot(0), 2, blocks.toOpenArray(0, 1)) == 0
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blocks[0..<2] == [dag.tail, b2Add[]]
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dag.getBlockRange(Slot(0), 3, blocks.toOpenArray(0, 1)) == 1
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blocks[1..<2] == [dag.tail] # block 3 is missing!
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dag.getBlockRange(Slot(2), 2, blocks.toOpenArray(0, 1)) == 0
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blocks[0..<2] == [b2Add[], b4Add[]] # block 3 is missing!
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# large skip step
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dag.getBlockRange(Slot(0), uint64.high, blocks.toOpenArray(0, 2)) == 2
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blocks[2..2] == [dag.tail]
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# large skip step
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dag.getBlockRange(Slot(2), uint64.high, blocks.toOpenArray(0, 1)) == 1
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blocks[1..1] == [b2Add[]]
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# empty length
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dag.getBlockRange(Slot(2), 2, blocks.toOpenArray(0, -1)) == 0
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# No blocks in sight
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dag.getBlockRange(Slot(5), 1, blocks.toOpenArray(0, 1)) == 2
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# No blocks in sight
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dag.getBlockRange(Slot(uint64.high), 1, blocks.toOpenArray(0, 1)) == 2
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# No blocks in sight either due to gaps
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dag.getBlockRange(Slot(3), 2, blocks.toOpenArray(0, 1)) == 2
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blocks[2..<2].len == 0
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test "Reverse order block add & get" & preset():
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let missing = dag.addRawBlock(quarantine, b2, nilPhase0Callback)
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check: missing.error == (ValidationResult.Ignore, MissingParent)
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check:
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dag.get(b2.root).isNone() # Unresolved, shouldn't show up
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FetchRecord(root: b1.root) in quarantine.checkMissing()
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let status = dag.addRawBlock(quarantine, b1, nilPhase0Callback)
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check: status.isOk
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let
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b1Get = dag.get(b1.root)
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b2Get = dag.get(b2.root)
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check:
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b1Get.isSome()
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b2Get.isSome()
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b2Get.get().refs.parent == b1Get.get().refs
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dag.updateHead(b2Get.get().refs, quarantine)
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dag.pruneAtFinalization()
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# The heads structure should have been updated to contain only the new
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# b2 head
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check:
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dag.heads.mapIt(it) == @[b2Get.get().refs]
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# check that init also reloads block graph
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var
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dag2 = init(ChainDAGRef, defaultRuntimeConfig, db, {})
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check:
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# ensure we loaded the correct head state
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dag2.head.root == b2.root
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hash_tree_root(dag2.headState.data) == b2.message.state_root
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dag2.get(b1.root).isSome()
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dag2.get(b2.root).isSome()
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dag2.heads.len == 1
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dag2.heads[0].root == b2.root
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test "Adding the same block twice returns a Duplicate error" & preset():
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let
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b10 = dag.addRawBlock(quarantine, b1, nilPhase0Callback)
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b11 = dag.addRawBlock(quarantine, b1, nilPhase0Callback)
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check:
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b11.error == (ValidationResult.Ignore, Duplicate)
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not b10[].isNil
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test "updateHead updates head and headState" & preset():
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let
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b1Add = dag.addRawBlock(quarantine, b1, nilPhase0Callback)
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dag.updateHead(b1Add[], quarantine)
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dag.pruneAtFinalization()
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check:
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dag.head == b1Add[]
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getStateField(dag.headState.data, slot) == b1Add[].slot
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test "updateStateData sanity" & preset():
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let
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b1Add = dag.addRawBlock(quarantine, b1, nilPhase0Callback)
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b2Add = dag.addRawBlock(quarantine, b2, nilPhase0Callback)
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bs1 = BlockSlot(blck: b1Add[], slot: b1.message.slot)
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bs1_3 = b1Add[].atSlot(3.Slot)
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bs2_3 = b2Add[].atSlot(3.Slot)
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var tmpState = assignClone(dag.headState)
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# move to specific block
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var cache = StateCache()
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dag.updateStateData(tmpState[], bs1, false, cache)
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check:
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tmpState.blck == b1Add[]
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getStateField(tmpState.data, slot) == bs1.slot
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# Skip slots
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dag.updateStateData(tmpState[], bs1_3, false, cache) # skip slots
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check:
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tmpState.blck == b1Add[]
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getStateField(tmpState.data, slot) == bs1_3.slot
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# Move back slots, but not blocks
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dag.updateStateData(tmpState[], bs1_3.parent(), false, cache)
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check:
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tmpState.blck == b1Add[]
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getStateField(tmpState.data, slot) == bs1_3.parent().slot
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# Move to different block and slot
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dag.updateStateData(tmpState[], bs2_3, false, cache)
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check:
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tmpState.blck == b2Add[]
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getStateField(tmpState.data, slot) == bs2_3.slot
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# Move back slot and block
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dag.updateStateData(tmpState[], bs1, false, cache)
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check:
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tmpState.blck == b1Add[]
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getStateField(tmpState.data, slot) == bs1.slot
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# Move back to genesis
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dag.updateStateData(tmpState[], bs1.parent(), false, cache)
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check:
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tmpState.blck == b1Add[].parent
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getStateField(tmpState.data, slot) == bs1.parent.slot
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const nilPhase0Callback = OnPhase0BlockAdded(nil)
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suite "chain DAG finalization tests" & preset():
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setup:
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var
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db = makeTestDB(SLOTS_PER_EPOCH)
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dag = init(ChainDAGRef, defaultRuntimeConfig, db, {})
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quarantine = QuarantineRef.init(keys.newRng())
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cache = StateCache()
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rewards = RewardInfo()
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test "prune heads on finalization" & preset():
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# Create a fork that will not be taken
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var
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blck = makeTestBlock(dag.headState.data, dag.head.root, cache)
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tmpState = assignClone(dag.headState.data)
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check:
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process_slots(
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defaultRuntimeConfig, tmpState[],
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getStateField(tmpState[], slot) + (5 * SLOTS_PER_EPOCH).uint64,
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cache, rewards, {})
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let lateBlock = addTestBlock(tmpState[], dag.head.root, cache)
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block:
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let status = dag.addRawBlock(quarantine, blck, nilPhase0Callback)
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check: status.isOk()
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assign(tmpState[], dag.headState.data)
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for i in 0 ..< (SLOTS_PER_EPOCH * 6):
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if i == 1:
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# There are 2 heads now because of the fork at slot 1
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check:
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dag.heads.len == 2
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blck = addTestBlock(
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tmpState[], dag.head.root, cache,
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attestations = makeFullAttestations(
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tmpState[], dag.head.root, getStateField(tmpState[], slot), cache, {}))
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let added = dag.addRawBlock(quarantine, blck, nilPhase0Callback)
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check: added.isOk()
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dag.updateHead(added[], quarantine)
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dag.pruneAtFinalization()
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check:
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dag.heads.len() == 1
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check:
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dag.db.immutableValidators.len() == getStateField(dag.headState.data, validators).len()
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let
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finalER = dag.findEpochRef(dag.finalizedHead.blck, dag.finalizedHead.slot.epoch)
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# The EpochRef for the finalized block is needed for eth1 voting, so we
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# should never drop it!
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check:
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not finalER.isNil
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block:
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for er in dag.epochRefs:
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check: er == nil or er.epoch >= dag.finalizedHead.slot.epoch
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block:
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let tmpStateData = assignClone(dag.headState)
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# Check that cached data is available after updateStateData - since we
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# just processed the head the relevant epochrefs should not have been
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# evicted yet
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cache = StateCache()
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updateStateData(
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dag, tmpStateData[], dag.head.atSlot(dag.head.slot), false, cache)
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check:
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dag.head.slot.epoch in cache.shuffled_active_validator_indices
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(dag.head.slot.epoch - 1) in cache.shuffled_active_validator_indices
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dag.head.slot in cache.beacon_proposer_indices
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block:
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# The late block is a block whose parent was finalized long ago and thus
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# is no longer a viable head candidate
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let status = dag.addRawBlock(quarantine, lateBlock, nilPhase0Callback)
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check: status.error == (ValidationResult.Ignore, Unviable)
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block:
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let
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finalizedCheckpoint = dag.finalizedHead.stateCheckpoint
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headCheckpoint = dag.head.atSlot(dag.head.slot).stateCheckpoint
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check:
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db.getStateRoot(headCheckpoint.blck.root, headCheckpoint.slot).isSome
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db.getStateRoot(finalizedCheckpoint.blck.root, finalizedCheckpoint.slot).isSome
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let
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dag2 = init(ChainDAGRef, defaultRuntimeConfig, db, {})
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# check that the state reloaded from database resembles what we had before
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check:
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dag2.tail.root == dag.tail.root
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dag2.head.root == dag.head.root
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dag2.finalizedHead.blck.root == dag.finalizedHead.blck.root
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dag2.finalizedHead.slot == dag.finalizedHead.slot
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hash_tree_root(dag2.headState.data) == hash_tree_root(dag.headState.data)
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test "orphaned epoch block" & preset():
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var prestate = (ref ForkedHashedBeaconState)(beaconStateFork: forkPhase0)
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for i in 0 ..< SLOTS_PER_EPOCH:
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if i == SLOTS_PER_EPOCH - 1:
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assign(prestate[], dag.headState.data)
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let blck = makeTestBlock(dag.headState.data, dag.head.root, cache)
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let added = dag.addRawBlock(quarantine, blck, nilPhase0Callback)
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check: added.isOk()
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dag.updateHead(added[], quarantine)
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dag.pruneAtFinalization()
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check:
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dag.heads.len() == 1
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# The loop creates multiple branches, which StateCache isn't suitable for
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cache = StateCache()
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doAssert process_slots(
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defaultRuntimeConfig, prestate[], getStateField(prestate[], slot) + 1,
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cache, rewards, {})
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# create another block, orphaning the head
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let blck = makeTestBlock(prestate[], dag.head.parent.root, cache)
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# Add block, but don't update head
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let added = dag.addRawBlock(quarantine, blck, nilPhase0Callback)
|
|
check: added.isOk()
|
|
|
|
var
|
|
dag2 = init(ChainDAGRef, defaultRuntimeConfig, db, {})
|
|
|
|
# check that we can apply the block after the orphaning
|
|
let added2 = dag2.addRawBlock(quarantine, blck, nilPhase0Callback)
|
|
check: added2.isOk()
|
|
|
|
test "init with gaps" & preset():
|
|
for blck in makeTestBlocks(
|
|
dag.headState.data, dag.head.root, cache, int(SLOTS_PER_EPOCH * 6 - 2),
|
|
true):
|
|
let added = dag.addRawBlock(quarantine, blck, nilPhase0Callback)
|
|
check: added.isOk()
|
|
dag.updateHead(added[], quarantine)
|
|
dag.pruneAtFinalization()
|
|
|
|
# Advance past epoch so that the epoch transition is gapped
|
|
check:
|
|
process_slots(
|
|
defaultRuntimeConfig, dag.headState.data, Slot(SLOTS_PER_EPOCH * 6 + 2),
|
|
cache, rewards, {})
|
|
|
|
var blck = makeTestBlock(
|
|
dag.headState.data, dag.head.root, cache,
|
|
attestations = makeFullAttestations(
|
|
dag.headState.data, dag.head.root, getStateField(dag.headState.data, slot),
|
|
cache, {}))
|
|
|
|
let added = dag.addRawBlock(quarantine, blck, nilPhase0Callback)
|
|
check: added.isOk()
|
|
dag.updateHead(added[], quarantine)
|
|
dag.pruneAtFinalization()
|
|
|
|
block:
|
|
# Check that we can rewind to every block from head to finalized
|
|
var
|
|
cur = dag.head
|
|
tmpStateData = assignClone(dag.headState)
|
|
while cur.slot >= dag.finalizedHead.slot:
|
|
assign(tmpStateData[], dag.headState)
|
|
dag.updateStateData(tmpStateData[], cur.atSlot(cur.slot), false, cache)
|
|
check:
|
|
dag.get(cur).data.phase0Block.message.state_root == getStateRoot(tmpStateData[].data)
|
|
getStateRoot(tmpStateData[].data) == hash_tree_root(tmpStateData[].data)
|
|
cur = cur.parent
|
|
|
|
let
|
|
dag2 = init(ChainDAGRef, defaultRuntimeConfig, db, {})
|
|
|
|
# check that the state reloaded from database resembles what we had before
|
|
check:
|
|
dag2.tail.root == dag.tail.root
|
|
dag2.head.root == dag.head.root
|
|
dag2.finalizedHead.blck.root == dag.finalizedHead.blck.root
|
|
dag2.finalizedHead.slot == dag.finalizedHead.slot
|
|
hash_tree_root(dag2.headState.data) == hash_tree_root(dag.headState.data)
|
|
|
|
suite "Old database versions" & preset():
|
|
setup:
|
|
let
|
|
genState = initialize_beacon_state_from_eth1(
|
|
defaultRuntimeConfig,
|
|
Eth2Digest(),
|
|
0,
|
|
makeInitialDeposits(SLOTS_PER_EPOCH.uint64, flags = {skipBlsValidation}),
|
|
{skipBlsValidation})
|
|
genBlock = get_initial_beacon_block(genState[])
|
|
quarantine = QuarantineRef.init(keys.newRng())
|
|
|
|
test "pre-1.1.0":
|
|
# only kvstore, no immutable validator keys
|
|
|
|
let db = BeaconChainDB.new("", inMemory = true)
|
|
|
|
# preInit a database to a v1.0.12 state
|
|
db.putStateV0(genBlock.message.state_root, genState[])
|
|
db.putBlockV0(genBlock)
|
|
db.putTailBlock(genBlock.root)
|
|
db.putHeadBlock(genBlock.root)
|
|
db.putStateRoot(genBlock.root, genState.slot, genBlock.message.state_root)
|
|
db.putGenesisBlockRoot(genBlock.root)
|
|
|
|
var
|
|
dag = init(ChainDAGRef, defaultRuntimeConfig, db, {})
|
|
state = newClone(dag.headState.data)
|
|
cache = StateCache()
|
|
att0 = makeFullAttestations(state[], dag.tail.root, 0.Slot, cache)
|
|
b1 = addTestBlock(state[], dag.tail.root, cache, attestations = att0)
|
|
b1Add = dag.addRawBlock(quarantine, b1, nilPhase0Callback)
|
|
|
|
check:
|
|
b1Add.isOk()
|