114 lines
5.1 KiB
Nim
114 lines
5.1 KiB
Nim
# beacon_chain
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# Copyright (c) 2018 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 http://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at http://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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import
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# Standard libs
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ospaths, strutils, json, unittest, strformat,
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# Third parties
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byteutils,
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# Beacon chain internals
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../../beacon_chain/spec/[datatypes, crypto, digest, beaconstate],
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../../beacon_chain/[ssz, state_transition],
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# Test utilities
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./fixtures_utils
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const TestFolder = currentSourcePath.rsplit(DirSep, 1)[0]
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const TestsPath = "fixtures" / "json_tests" / "state" / "sanity-check_default-config_100-vals.json"
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var stateTests: StateTests
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suite "Official - State tests": # Initializing a beacon state from the deposits
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# Source: https://github.com/ethereum/eth2.0-specs/blob/2baa242ac004b0475604c4c4ef4315e14f56c5c7/tests/phase0/test_sanity.py#L55-L460
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test "Parsing the official state tests into Nimbus beacon types":
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stateTests = parseTests(TestFolder / TestsPath, StateTests) # TODO pending typedesc fix in fixture_utils.nim
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doAssert $stateTests.test_cases[0].name == "test_empty_block_transition"
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test "[For information - Non-blocking] Block root signing":
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# TODO: Currently we are unable to use the official EF tests:
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# - The provided zero signature "0x0000..." is an invalid compressed BLS signature
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# - Block headers are using that signature
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# - Block processing checks that block.previous_block_root == signing_root(state.latest_block_header)
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# -> Changing EF provided previous_block_root would render the block transition tests meaningless
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# -> Changing the signature to a valid "0xc000..." makes all hashes/signing_root wrong ...
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#
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# So we only test that block header signing in Nimbus matches block header signing from the EF
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# And we can't deserialize from the raw YAML/JSON to avoid sanity checks on the signature
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# TODO: Move that in an actual SSZ test suite
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block: # sanity-check_default-config_100-vals.yaml - test "test_empty_block_transition"
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let header = BeaconBlockHeader(
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slot: Slot(4294967296),
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previous_block_root: ZERO_HASH,
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state_root: ZERO_HASH,
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block_body_root: Eth2Digest(data:
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hexToByteArray[32]("0x13f2001ff0ee4a528b3c43f63d70a997aefca990ed8eada2223ee6ec3807f7cc")
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),
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signature: ValidatorSig()
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)
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let previous_block_root = Eth2Digest(data:
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hexToByteArray[32]("0x1179346f489d8be1731377cb199af5cc61faa38353e2d67e096bed182677062a")
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)
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echo " Expected previous block root: 0x", previous_block_root
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echo " Computed header signed root: 0x", signing_root(header)
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test "[For information] Print list of official tests to implement":
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for i, test in stateTests.test_cases:
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echo &" Test #{i:03}: {test.name}"
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# test "Empty block transition":
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# # TODO - assert that the constants match
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# var state: BeaconState
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# doAssert stateTests.test_cases[0].name == "test_empty_block_transition"
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# template tcase(): untyped {.dirty.} =
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# # Alias
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# stateTests.test_cases[0]
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# deepCopy(state, tcase.initial_state)
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# # Use the provided empty block
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# # Alternatively, generate one with `build_empty_block_for_next_slot`
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# let blck = tcase.blocks[0]
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# debugEcho blck.previous_block_root
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# let ok = updateState(state, blck, flags = {})
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# check:
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# ok
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# tcase.expected_state.eth1_data_votes.len == state.eth1_data_votes.len + 1
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# get_block_root(tcase.expected_state, state.slot) == blck.previous_block_root
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suite "[For information - non-blocking] Extra state tests":
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var initialState: BeaconState
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test "Initializing from scratch a new beacon chain with the same constants and deposit configuration as official state test 0":
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var deposits: seq[Deposit]
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var index = 0'u64
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for v in stateTests.test_cases[0].initial_state.validator_registry:
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deposits.add Deposit(
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proof: default(array[DEPOSIT_CONTRACT_TREE_DEPTH, Eth2Digest]),
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index: index,
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data: DepositData(
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amount: 32000000000'u64, # TODO: read that from validator_balances
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timestamp: 0'u64, # TODO: not initialized in test
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deposit_input: DepositInput(
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pubkey: v.pubkey,
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withdrawal_credentials: v.withdrawal_credentials,
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proof_of_possession: default(ValidatorSig) # TODO: not initialized in test
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)
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)
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)
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initialState = get_genesis_beacon_state(
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genesis_validator_deposits = deposits,
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genesis_time = 0,
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genesis_eth1_data = Eth1Data()
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)
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test "Comparing state hashes":
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# TODO - Add official hashes when available
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# TODO - Make that a blocking test requirement
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echo " Deserialized state hash: 0x" & $stateTests.test_cases[0].initial_state.hash_tree_root()
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echo " From-scratch state hash: 0x" & $initialState.hash_tree_root() |