nimbus-eth2/tests/test_state_transition.nim
Jacek Sieka 0b0c66ebd9 spec updates
* spec-following renames
* more documentation
* simplify casper slashing
* fix block creation flow / logic
2018-12-19 14:48:25 +02:00

103 lines
3.4 KiB
Nim

# beacon_chain
# Copyright (c) 2018 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at http://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at http://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
import
options, sequtils, unittest,
./testutil,
../beacon_chain/spec/[beaconstate, crypto, datatypes, digest, helpers],
../beacon_chain/[extras, state_transition]
suite "Block processing":
## For now just test that we can compile and execute block processing with
## mock data.
let
# Genesis state with minimal number of deposits
# TODO bls verification is a bit of a bottleneck here
genesisState = get_initial_beacon_state(
makeInitialDeposits(), 0, Eth2Digest())
genesisBlock = makeGenesisBlock(genesisState)
test "Passes from genesis state, no block":
let
state = genesisState
latest_block = genesisBlock
new_state = updateState(state, latest_block, none(BeaconBlock), false)
check:
new_state.state.slot == latest_block.slot + 1
new_state.block_ok
test "Passes from genesis state, empty block":
let
state = genesisState
latest_block = genesisBlock
new_block = makeBlock(state, latest_block)
new_state = updateState(state, latest_block, some(new_block), false)
check:
new_state.state.slot == latest_block.slot + 1
new_state.block_ok
test "Passes through epoch update, no block":
var
state = genesisState
latest_block = genesisBlock
for i in 1..EPOCH_LENGTH.int:
let new_state = updateState(state, latest_block, none(BeaconBlock), false)
check:
new_state.block_ok
state = new_state.state
check:
state.slot == latest_block.slot + EPOCH_LENGTH
test "Passes through epoch update, empty block":
var
state = genesisState
latest_block = genesisBlock
for i in 1..EPOCH_LENGTH.int:
var new_block = makeBlock(state, latest_block)
let new_state = updateState(state, latest_block, some(new_block), false)
check:
new_state.block_ok
state = new_state.state
latest_block = new_block
check:
state.slot == latest_block.slot
test "Increments proposer randao_layers, no block":
let
state = genesisState
latest_block = genesisBlock
proposer_index = getNextBeaconProposerIndex(state)
previous_randao_layers =
state.validator_registry[proposer_index].randao_layers
new_state = updateState(state, latest_block, none(BeaconBlock), false)
updated_proposer = new_state.state.validator_registry[proposer_index]
check:
updated_proposer.randao_layers == previous_randao_layers + 1
test "Proposer randao layers unchanged, empty block":
let
state = genesisState
latest_block = genesisBlock
proposer_index = getNextBeaconProposerIndex(state)
previous_randao_layers =
state.validator_registry[proposer_index].randao_layers
new_block = makeBlock(state, latest_block)
new_state = updateState(state, latest_block, some(new_block), false)
updated_proposer = new_state.state.validator_registry[proposer_index]
check:
updated_proposer.randao_layers == previous_randao_layers