64 lines
2.3 KiB
Nim
64 lines
2.3 KiB
Nim
# beacon_chain
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# Copyright (c) 2018-2023 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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# Status libraries
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stew/bitops2,
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eth/common/eth_types as commonEthTypes, eth/common/eth_types_rlp,
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web3/ethtypes,
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# Beacon chain internals
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../beacon_chain/spec/[forks, helpers, state_transition],
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../beacon_chain/spec/datatypes/[bellatrix, capella],
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# Test utilities
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./unittest2, mocking/mock_genesis
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suite "Spec helpers":
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test "integer_squareroot":
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check:
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integer_squareroot(0'u64) == 0'u64
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integer_squareroot(1'u64) == 1'u64
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integer_squareroot(2'u64) == 1'u64
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integer_squareroot(3'u64) == 1'u64
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integer_squareroot(4'u64) == 2'u64
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integer_squareroot(5'u64) == 2'u64
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test "build_proof - BeaconState":
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var
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forked = newClone(initGenesisState())
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cache = StateCache()
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info = ForkedEpochInfo()
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process_slots(
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defaultRuntimeConfig, forked[], Slot(100), cache, info,
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flags = {}).expect("no failure")
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let
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state = forked[].phase0Data.data
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root = state.hash_tree_root()
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func numLeaves(obj: object): GeneralizedIndex =
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nextPow2(typeof(obj).totalSerializedFields.uint64).GeneralizedIndex
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proc process(anchor: object, index: GeneralizedIndex) =
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var i = index
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anchor.enumInstanceSerializedFields(fieldNameVar, fieldVar):
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let depth = log2trunc(i)
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var proof = newSeq[Eth2Digest](depth)
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state.build_proof(i, proof).get
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check:
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hash_tree_root(fieldVar) == hash_tree_root(state, i).get
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is_valid_merkle_branch(hash_tree_root(fieldVar), proof,
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depth, get_subtree_index(i), root)
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when fieldVar is object and not (fieldVar is Eth2Digest):
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let
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numChildLeaves = fieldVar.numLeaves
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childDepth = log2trunc(numChildLeaves)
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process(fieldVar, i shl childDepth)
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i += 1
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process(state, state.numLeaves)
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