216 lines
6.9 KiB
Nim
216 lines
6.9 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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unittest,
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chronicles,
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stew/byteutils,
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./testutil, ./testblockutil,
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../beacon_chain/spec/[digest, validator],
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../beacon_chain/[beacon_node_types, attestation_pool, block_pool, state_transition],
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../beacon_chain/spec/datatypes,
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../beacon_chain/ssz
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when const_preset == "minimal": # Too much stack space used on mainnet
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suiteReport "Attestation pool processing" & preset():
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## For now just test that we can compile and execute block processing with
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## mock data.
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setup:
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# Genesis state that results in 3 members per committee
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var
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blockPool = BlockPool.init(makeTestDB(SLOTS_PER_EPOCH * 3))
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pool = AttestationPool.init(blockPool)
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state = loadTailState(blockPool)
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# Slot 0 is a finalized slot - won't be making attestations for it..
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process_slots(state.data, state.data.data.slot + 1)
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timedTest "Can add and retrieve simple attestation" & preset():
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var cache = get_empty_per_epoch_cache()
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let
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# Create an attestation for slot 1!
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beacon_committee = get_beacon_committee(
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state.data.data, state.data.data.slot, 0, cache)
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attestation = makeAttestation(
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state.data.data, state.blck.root, beacon_committee[0], cache)
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pool.add(attestation)
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process_slots(state.data, MIN_ATTESTATION_INCLUSION_DELAY.Slot + 1)
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let attestations = pool.getAttestationsForBlock(state.data.data)
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check:
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attestations.len == 1
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timedTest "Attestations may arrive in any order" & preset():
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var cache = get_empty_per_epoch_cache()
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let
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# Create an attestation for slot 1!
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bc0 = get_beacon_committee(
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state.data.data, state.data.data.slot, 0, cache)
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attestation0 = makeAttestation(
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state.data.data, state.blck.root, bc0[0], cache)
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process_slots(state.data, state.data.data.slot + 1)
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let
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bc1 = get_beacon_committee(state.data.data,
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state.data.data.slot, 0, cache)
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attestation1 = makeAttestation(
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state.data.data, state.blck.root, bc1[0], cache)
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# test reverse order
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pool.add(attestation1)
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pool.add(attestation0)
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process_slots(state.data, MIN_ATTESTATION_INCLUSION_DELAY.Slot + 1)
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let attestations = pool.getAttestationsForBlock(state.data.data)
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check:
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attestations.len == 1
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timedTest "Attestations should be combined" & preset():
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var cache = get_empty_per_epoch_cache()
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let
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# Create an attestation for slot 1!
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bc0 = get_beacon_committee(
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state.data.data, state.data.data.slot, 0, cache)
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attestation0 = makeAttestation(
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state.data.data, state.blck.root, bc0[0], cache)
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attestation1 = makeAttestation(
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state.data.data, state.blck.root, bc0[1], cache)
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pool.add(attestation0)
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pool.add(attestation1)
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process_slots(state.data, MIN_ATTESTATION_INCLUSION_DELAY.Slot + 1)
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let attestations = pool.getAttestationsForBlock(state.data.data)
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check:
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attestations.len == 1
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timedTest "Attestations may overlap, bigger first" & preset():
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var cache = get_empty_per_epoch_cache()
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var
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# Create an attestation for slot 1!
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bc0 = get_beacon_committee(
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state.data.data, state.data.data.slot, 0, cache)
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attestation0 = makeAttestation(
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state.data.data, state.blck.root, bc0[0], cache)
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attestation1 = makeAttestation(
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state.data.data, state.blck.root, bc0[1], cache)
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attestation0.combine(attestation1, {})
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pool.add(attestation0)
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pool.add(attestation1)
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process_slots(state.data, MIN_ATTESTATION_INCLUSION_DELAY.Slot + 1)
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let attestations = pool.getAttestationsForBlock(state.data.data)
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check:
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attestations.len == 1
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timedTest "Attestations may overlap, smaller first" & preset():
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var cache = get_empty_per_epoch_cache()
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var
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# Create an attestation for slot 1!
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bc0 = get_beacon_committee(state.data.data,
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state.data.data.slot, 0, cache)
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attestation0 = makeAttestation(
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state.data.data, state.blck.root, bc0[0], cache)
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attestation1 = makeAttestation(
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state.data.data, state.blck.root, bc0[1], cache)
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attestation0.combine(attestation1, {})
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pool.add(attestation1)
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pool.add(attestation0)
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process_slots(state.data, MIN_ATTESTATION_INCLUSION_DELAY.Slot + 1)
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let attestations = pool.getAttestationsForBlock(state.data.data)
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check:
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attestations.len == 1
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timedTest "Fork choice returns latest block with no attestations":
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let
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b1 = addTestBlock(state.data.data, blockPool.tail.root)
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b1Root = hash_tree_root(b1.message)
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b1Add = blockPool.add(b1Root, b1)
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head = pool.selectHead()
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check:
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head == b1Add
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let
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b2 = addTestBlock(state.data.data, b1Root)
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b2Root = hash_tree_root(b2.message)
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b2Add = blockPool.add(b2Root, b2)
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head2 = pool.selectHead()
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check:
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head2 == b2Add
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timedTest "Fork choice returns block with attestation":
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var cache = get_empty_per_epoch_cache()
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let
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b10 = makeTestBlock(state.data.data, blockPool.tail.root)
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b10Root = hash_tree_root(b10.message)
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b10Add = blockPool.add(b10Root, b10)
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head = pool.selectHead()
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check:
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head == b10Add
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let
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b11 = makeTestBlock(state.data.data, blockPool.tail.root,
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graffiti = Eth2Digest(data: [1'u8, 0, 0, 0 ,0 ,0 ,0 ,0 ,0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0])
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)
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b11Root = hash_tree_root(b11.message)
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b11Add = blockPool.add(b11Root, b11)
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bc1 = get_beacon_committee(
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state.data.data, state.data.data.slot, 1, cache)
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attestation0 = makeAttestation(state.data.data, b10Root, bc1[0], cache)
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pool.add(attestation0)
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let head2 = pool.selectHead()
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check:
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# Single vote for b10 and no votes for b11
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head2 == b10Add
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let
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attestation1 = makeAttestation(state.data.data, b11Root, bc1[1], cache)
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attestation2 = makeAttestation(state.data.data, b11Root, bc1[2], cache)
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pool.add(attestation1)
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let head3 = pool.selectHead()
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let smaller = if b10Root.data < b11Root.data: b10Add else: b11Add
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check:
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# Ties broken lexicographically
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head3 == smaller
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pool.add(attestation2)
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let head4 = pool.selectHead()
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check:
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# Two votes for b11
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head4 == b11Add
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