88 lines
2.6 KiB
Python
88 lines
2.6 KiB
Python
from .cryptarchia import (
|
|
Config,
|
|
TimeConfig,
|
|
Id,
|
|
Slot,
|
|
Coin,
|
|
BlockHeader,
|
|
LedgerState,
|
|
MockLeaderProof,
|
|
Leader,
|
|
Follower,
|
|
)
|
|
|
|
|
|
class TestNode:
|
|
def __init__(self, config: Config, genesis: LedgerState, coin: Coin):
|
|
self.config = config
|
|
self.leader = Leader(coin=coin, config=config)
|
|
self.follower = Follower(genesis, config)
|
|
|
|
def epoch_state(self, slot: Slot):
|
|
return self.follower.compute_epoch_state(
|
|
slot.epoch(self.config), self.follower.local_chain
|
|
)
|
|
|
|
def on_slot(self, slot: Slot) -> BlockHeader | None:
|
|
parent = self.follower.tip_id()
|
|
epoch_state = self.epoch_state(slot)
|
|
if leader_proof := self.leader.try_prove_slot_leader(epoch_state, slot, parent):
|
|
orphans = self.follower.unimported_orphans(parent)
|
|
self.leader.coin = self.leader.coin.evolve()
|
|
return BlockHeader(
|
|
parent=parent,
|
|
slot=slot,
|
|
orphaned_proofs=orphans,
|
|
leader_proof=leader_proof,
|
|
content_size=0,
|
|
content_id=bytes(32),
|
|
)
|
|
return None
|
|
|
|
def on_block(self, block: BlockHeader):
|
|
self.follower.on_block(block)
|
|
|
|
|
|
def mk_config(initial_stake_distribution: list[Coin]) -> Config:
|
|
initial_inferred_total_stake = sum(c.value for c in initial_stake_distribution)
|
|
return Config.cryptarchia_v0_0_1(initial_inferred_total_stake).replace(
|
|
k=1,
|
|
active_slot_coeff=0.5,
|
|
)
|
|
|
|
|
|
def mk_genesis_state(initial_stake_distribution: list[Coin]) -> LedgerState:
|
|
return LedgerState(
|
|
block=bytes(32),
|
|
nonce=bytes(32),
|
|
commitments_spend={c.commitment() for c in initial_stake_distribution},
|
|
commitments_lead={c.commitment() for c in initial_stake_distribution},
|
|
nullifiers=set(),
|
|
)
|
|
|
|
|
|
def mk_block(
|
|
parent: Id, slot: int, coin: Coin, content=bytes(32), orphaned_proofs=[]
|
|
) -> BlockHeader:
|
|
assert len(parent) == 32
|
|
from hashlib import sha256
|
|
|
|
return BlockHeader(
|
|
slot=Slot(slot),
|
|
parent=parent,
|
|
content_size=len(content),
|
|
content_id=sha256(content).digest(),
|
|
leader_proof=MockLeaderProof.new(coin, Slot(slot), parent=parent),
|
|
orphaned_proofs=orphaned_proofs,
|
|
)
|
|
|
|
|
|
def mk_chain(parent, coin: Coin, slots: list[int]) -> tuple[list[BlockHeader], Coin]:
|
|
chain = []
|
|
for s in slots:
|
|
block = mk_block(parent=parent, slot=s, coin=coin)
|
|
chain.append(block)
|
|
parent = block.id()
|
|
coin = coin.evolve()
|
|
return chain, coin
|