383 lines
12 KiB
Nim
383 lines
12 KiB
Nim
# beacon_chain
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# Copyright (c) 2018-2020 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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options, sequtils, unittest,
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./testutil, ./testblockutil,
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../beacon_chain/spec/[datatypes, digest, helpers, validator, state_transition],
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../beacon_chain/[beacon_node_types, block_pool, ssz]
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when isMainModule:
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import chronicles # or some random compile error happens...
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suiteReport "BlockRef and helpers" & preset():
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timedTest "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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timedTest "getAncestorAt 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.getAncestorAt(Slot(0)) == s0
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s0.getAncestorAt(Slot(1)) == s0
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s1.getAncestorAt(Slot(0)) == s0
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s1.getAncestorAt(Slot(1)) == s1
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s4.getAncestorAt(Slot(0)) == s0
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s4.getAncestorAt(Slot(1)) == s1
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s4.getAncestorAt(Slot(2)) == s2
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s4.getAncestorAt(Slot(3)) == s2
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s4.getAncestorAt(Slot(4)) == s4
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suiteReport "BlockSlot and helpers" & preset():
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timedTest "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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timedTest "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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s22.parent == s01
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s24.parent == BlockSlot(blck: s2, slot: Slot(3))
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s24.parent.parent == s22
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suiteReport "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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pool = BlockPool.init(db)
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stateData = newClone(pool.loadTailState())
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cache = get_empty_per_epoch_cache()
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b1 = addTestBlock(stateData.data, pool.tail.root, cache)
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b1Root = hash_tree_root(b1.message)
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b2 = addTestBlock(stateData.data, b1Root, cache)
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b2Root {.used.} = hash_tree_root(b2.message)
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timedTest "getRef returns nil for missing blocks":
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check:
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pool.getRef(default Eth2Digest) == nil
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timedTest "loadTailState gets genesis block on first load" & preset():
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let
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b0 = pool.get(pool.tail.root)
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check:
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b0.isSome()
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timedTest "Simple block add&get" & preset():
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let
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b1Add = pool.add(b1Root, b1)[]
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b1Get = pool.get(b1Root)
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check:
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b1Get.isSome()
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b1Get.get().refs.root == b1Root
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b1Add.root == b1Get.get().refs.root
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pool.heads.len == 1
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pool.heads[0].blck == b1Add
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let
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b2Add = pool.add(b2Root, b2)[]
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b2Get = pool.get(b2Root)
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check:
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b2Get.isSome()
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b2Get.get().refs.root == b2Root
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b2Add.root == b2Get.get().refs.root
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pool.heads.len == 1
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pool.heads[0].blck == b2Add
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# Skip one slot to get a gap
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check:
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process_slots(stateData.data, stateData.data.data.slot + 1)
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let
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b4 = addTestBlock(stateData.data, b2Root, cache)
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b4Root = hash_tree_root(b4.message)
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b4Add = pool.add(b4Root, b4)[]
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check:
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b4Add.parent == b2Add
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pool.updateHead(b4Add)
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var blocks: array[3, BlockRef]
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check:
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pool.getBlockRange(Slot(0), 1, blocks.toOpenArray(0, 0)) == 0
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blocks[0..<1] == [pool.tail]
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pool.getBlockRange(Slot(0), 1, blocks.toOpenArray(0, 1)) == 0
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blocks[0..<2] == [pool.tail, b1Add]
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pool.getBlockRange(Slot(0), 2, blocks.toOpenArray(0, 1)) == 0
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blocks[0..<2] == [pool.tail, b2Add]
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pool.getBlockRange(Slot(0), 3, blocks.toOpenArray(0, 1)) == 1
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blocks[0..<2] == [nil, pool.tail] # block 3 is missing!
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pool.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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# empty length
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pool.getBlockRange(Slot(2), 2, blocks.toOpenArray(0, -1)) == 0
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# No blocks in sight
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pool.getBlockRange(Slot(5), 1, blocks.toOpenArray(0, 1)) == 2
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# No blocks in sight either due to gaps
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pool.getBlockRange(Slot(3), 2, blocks.toOpenArray(0, 1)) == 2
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blocks[0..<2] == [BlockRef nil, nil] # block 3 is missing!
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timedTest "Reverse order block add & get" & preset():
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check: pool.add(b2Root, b2).error == MissingParent
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check:
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pool.get(b2Root).isNone() # Unresolved, shouldn't show up
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FetchRecord(root: b1Root) in pool.checkMissing()
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check: pool.add(b1Root, b1).isOk
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let
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b1Get = pool.get(b1Root)
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b2Get = pool.get(b2Root)
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check:
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b1Get.isSome()
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b2Get.isSome()
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b1Get.get().refs.children[0] == b2Get.get().refs
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b2Get.get().refs.parent == b1Get.get().refs
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pool.updateHead(b2Get.get().refs)
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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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pool.heads.mapIt(it.blck) == @[b2Get.get().refs]
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# check that init also reloads block graph
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var
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pool2 = BlockPool.init(db)
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check:
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# ensure we loaded the correct head state
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pool2.head.blck.root == b2Root
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hash_tree_root(pool2.headState.data.data) == b2.message.state_root
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pool2.get(b1Root).isSome()
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pool2.get(b2Root).isSome()
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pool2.heads.len == 1
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pool2.heads[0].blck.root == b2Root
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timedTest "Can add same block twice" & preset():
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let
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b10 = pool.add(b1Root, b1)[]
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b11 = pool.add(b1Root, b1)[]
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check:
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b10 == b11
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not b10.isNil
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timedTest "updateHead updates head and headState" & preset():
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let
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b1Add = pool.add(b1Root, b1)[]
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pool.updateHead(b1Add)
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check:
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pool.head.blck == b1Add
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pool.headState.data.data.slot == b1Add.slot
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timedTest "updateStateData sanity" & preset():
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let
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b1Add = pool.add(b1Root, b1)[]
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b2Add = pool.add(b2Root, b2)[]
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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(pool.headState)
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# move to specific block
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pool.updateStateData(tmpState[], bs1)
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check:
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tmpState.blck == b1Add
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tmpState.data.data.slot == bs1.slot
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# Skip slots
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pool.updateStateData(tmpState[], bs1_3) # skip slots
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check:
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tmpState.blck == b1Add
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tmpState.data.data.slot == bs1_3.slot
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# Move back slots, but not blocks
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pool.updateStateData(tmpState[], bs1_3.parent())
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check:
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tmpState.blck == b1Add
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tmpState.data.data.slot == bs1_3.parent().slot
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# Move to different block and slot
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pool.updateStateData(tmpState[], bs2_3)
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check:
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tmpState.blck == b2Add
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tmpState.data.data.slot == bs2_3.slot
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# Move back slot and block
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pool.updateStateData(tmpState[], bs1)
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check:
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tmpState.blck == b1Add
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tmpState.data.data.slot == bs1.slot
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# Move back to genesis
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pool.updateStateData(tmpState[], bs1.parent())
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check:
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tmpState.blck == b1Add.parent
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tmpState.data.data.slot == bs1.parent.slot
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suiteReport "BlockPool 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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pool = BlockPool.init(db)
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cache = get_empty_per_epoch_cache()
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timedTest "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(pool.headState.data, pool.head.blck.root, cache)
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tmpState = assignClone(pool.headState.data)
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check:
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process_slots(
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tmpState[], tmpState.data.slot + (5 * SLOTS_PER_EPOCH).uint64)
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let lateBlock = makeTestBlock(tmpState[], pool.head.blck.root, cache)
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check: pool.add(hash_tree_root(blck.message), blck).isOk
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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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pool.tail.children.len == 2
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pool.heads.len == 2
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var
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cache = get_empty_per_epoch_cache()
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blck = makeTestBlock(
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pool.headState.data, pool.head.blck.root, cache,
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attestations = makeFullAttestations(
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pool.headState.data.data, pool.head.blck.root,
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pool.headState.data.data.slot, cache, {}))
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let added = pool.add(hash_tree_root(blck.message), blck)[]
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pool.updateHead(added)
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check:
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pool.heads.len() == 1
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pool.head.justified.slot.compute_epoch_at_slot() == 5
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pool.tail.children.len == 1
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check:
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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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pool.add(hash_tree_root(lateBlock.message), lateBlock).error == Unviable
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let
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pool2 = BlockPool.init(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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pool2.tail.root == pool.tail.root
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pool2.head.blck.root == pool.head.blck.root
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pool2.finalizedHead.blck.root == pool.finalizedHead.blck.root
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pool2.finalizedHead.slot == pool.finalizedHead.slot
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hash_tree_root(pool2.headState.data.data) ==
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hash_tree_root(pool.headState.data.data)
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hash_tree_root(pool2.justifiedState.data.data) ==
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hash_tree_root(pool.justifiedState.data.data)
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timedTest "init with gaps" & preset():
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var cache = get_empty_per_epoch_cache()
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for i in 0 ..< (SLOTS_PER_EPOCH * 6 - 2):
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var
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blck = makeTestBlock(
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pool.headState.data, pool.head.blck.root, cache,
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attestations = makeFullAttestations(
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pool.headState.data.data, pool.head.blck.root,
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pool.headState.data.data.slot, cache, {}))
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let added = pool.add(hash_tree_root(blck.message), blck)[]
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pool.updateHead(added)
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# Advance past epoch so that the epoch transition is gapped
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check:
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process_slots(
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pool.headState.data, Slot(SLOTS_PER_EPOCH * 6 + 2) )
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var blck = makeTestBlock(
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pool.headState.data, pool.head.blck.root, cache,
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attestations = makeFullAttestations(
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pool.headState.data.data, pool.head.blck.root,
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pool.headState.data.data.slot, cache, {}))
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let added = pool.add(hash_tree_root(blck.message), blck)[]
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pool.updateHead(added)
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let
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pool2 = BlockPool.init(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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pool2.tail.root == pool.tail.root
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pool2.head.blck.root == pool.head.blck.root
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pool2.finalizedHead.blck.root == pool.finalizedHead.blck.root
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pool2.finalizedHead.slot == pool.finalizedHead.slot
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hash_tree_root(pool2.headState.data.data) ==
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hash_tree_root(pool.headState.data.data)
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hash_tree_root(pool2.justifiedState.data.data) ==
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hash_tree_root(pool.justifiedState.data.data)
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