nimbus-eth2/tests/teststateutil.nim

86 lines
3.0 KiB
Nim

# Nimbus
# Copyright (c) 2021-2022 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or https://www.apache.org/licenses/LICENSE-2.0)
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or https://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.push raises: [Defect].}
import
options, stew/endians2,
./mocking/mock_deposits,
./helpers/math_helpers,
../beacon_chain/spec/[
forks, helpers, state_transition, state_transition_block]
proc valid_deposit(state: var ForkyHashedBeaconState) =
const deposit_amount = MAX_EFFECTIVE_BALANCE
let validator_index = state.data.validators.len
let deposit = mockUpdateStateForNewDeposit(
state.data,
uint64 validator_index,
deposit_amount,
flags = {}
)
let pre_val_count = state.data.validators.len
let pre_balance = if validator_index < pre_val_count:
state.data.balances[validator_index]
else:
0
doAssert process_deposit(defaultRuntimeConfig, state.data, deposit, {}).isOk
doAssert state.data.validators.len == pre_val_count + 1
doAssert state.data.balances.len == pre_val_count + 1
doAssert state.data.balances[validator_index] == pre_balance + deposit.data.amount
doAssert state.data.validators[validator_index].effective_balance ==
round_multiple_down(
min(MAX_EFFECTIVE_BALANCE, state.data.balances[validator_index]),
EFFECTIVE_BALANCE_INCREMENT
)
state.root = hash_tree_root(state.data)
proc getTestStates*(
initialState: ForkedHashedBeaconState, stateFork: BeaconStateFork):
seq[ref ForkedHashedBeaconState] =
# Randomly generated slot numbers, with a jump to around
# SLOTS_PER_HISTORICAL_ROOT to force wraparound of those
# slot-based mod/increment fields.
const stateEpochs = [
0, 1,
# Around minimal wraparound SLOTS_PER_HISTORICAL_ROOT wraparound
7, 8, 9,
# Unexceptional cases, with 2 and 3-long runs
39, 40, 114, 115, 116, 130, 131,
# Approaching and passing mainnet SLOTS_PER_HISTORICAL_ROOT wraparound
255, 256, 257]
var
tmpState = assignClone(initialState)
cache = StateCache()
info = ForkedEpochInfo()
cfg = defaultRuntimeConfig
if stateFork in [BeaconStateFork.Altair, BeaconStateFork.Bellatrix]:
cfg.ALTAIR_FORK_EPOCH = 1.Epoch
if stateFork == BeaconStateFork.Bellatrix:
cfg.MERGE_FORK_EPOCH = 1.Epoch
for i, epoch in stateEpochs:
let slot = epoch.Epoch.compute_start_slot_at_epoch
if getStateField(tmpState[], slot) < slot:
doAssert process_slots(
cfg, tmpState[], slot, cache, info, {})
if i mod 3 == 0:
withState(tmpState[]):
valid_deposit(state)
doAssert getStateField(tmpState[], slot) == slot
if tmpState[].kind == stateFork:
result.add assignClone(tmpState[])