def test_state_machine(initial_chaindb,
genesis_block,
genesis_crystallized_state):
chaindb = initial_chaindb
block_1 = genesis_block.copy(
parent_hash=genesis_block.hash,
slot_number=1,
active_state_root=b'\x11' * 32,
)
chaindb.persist_block(block_1)
block_2 = block_1.copy(
parent_hash=block_1.hash,
slot_number=2,
active_state_root=b'\x22' * 32,
)
# canonical head is block_2
chaindb.persist_block(block_2)
# building block_3
block_3 = block_2.copy(
parent_hash=block_2.hash,
slot_number=3,
active_state_root=b'\x33' * 32,
)
sm = SerenityStateMachine(chaindb, block_3)
assert sm.crystallized_state == genesis_crystallized_state
expect = tuple(
[ZERO_HASH32] * (sm.config.CYCLE_LENGTH * 2 - 2) +
[genesis_block.hash] + [block_1.hash]
)
assert sm.active_state.recent_block_hashes == expect
def test_state_machine_canonical(initial_chaindb, genesis_block,
genesis_crystallized_state,
genesis_active_state):
chaindb = initial_chaindb
sm = SerenityStateMachine(chaindb)
assert sm.block == genesis_block.copy(
slot_number=genesis_block.slot_number + 1,
parent_hash=genesis_block.hash)
assert sm.crystallized_state == genesis_crystallized_state
assert sm.active_state == genesis_active_state
def fixture_sm_class(config):
return SerenityStateMachine.configure(
__name__='SerenityStateMachineForTesting',
config=config,
)