def test_validator_already_exited(state):
pre_state = deepcopy(state)
#
# setup pre_state
#
# move state forward PERSISTENT_COMMITTEE_PERIOD epochs to allow validator able to exit
pre_state.slot += spec.PERSISTENT_COMMITTEE_PERIOD * spec.SLOTS_PER_EPOCH
current_epoch = get_current_epoch(pre_state)
validator_index = get_active_validator_indices(
pre_state.validator_registry, current_epoch)[0]
privkey = pubkey_to_privkey[
pre_state.validator_registry[validator_index].pubkey]
# but validator already has exited
pre_state.validator_registry[
validator_index].exit_epoch = current_epoch + 2
#
# build voluntary exit
#
voluntary_exit = build_voluntary_exit(
pre_state,
current_epoch,
validator_index,
privkey,
)
with pytest.raises(AssertionError):
process_voluntary_exit(pre_state, voluntary_exit)
return pre_state, voluntary_exit, None
def test_success(state):
pre_state = deepcopy(state)
#
# setup pre_state
#
# move state forward PERSISTENT_COMMITTEE_PERIOD epochs to allow for exit
pre_state.slot += spec.PERSISTENT_COMMITTEE_PERIOD * spec.SLOTS_PER_EPOCH
#
# build voluntary exit
#
current_epoch = get_current_epoch(pre_state)
validator_index = get_active_validator_indices(
pre_state.validator_registry, current_epoch)[0]
privkey = pubkey_to_privkey[
pre_state.validator_registry[validator_index].pubkey]
voluntary_exit = build_voluntary_exit(
pre_state,
current_epoch,
validator_index,
privkey,
)
post_state = deepcopy(pre_state)
#
# test valid exit
#
process_voluntary_exit(post_state, voluntary_exit)
assert not pre_state.validator_registry[validator_index].initiated_exit
assert post_state.validator_registry[validator_index].initiated_exit
return pre_state, voluntary_exit, post_state
def test_validator_not_active(state):
pre_state = deepcopy(state)
current_epoch = get_current_epoch(pre_state)
validator_index = get_active_validator_indices(
pre_state.validator_registry, current_epoch)[0]
privkey = pubkey_to_privkey[
pre_state.validator_registry[validator_index].pubkey]
#
# setup pre_state
#
pre_state.validator_registry[
validator_index].activation_epoch = spec.FAR_FUTURE_EPOCH
#
# build and test voluntary exit
#
voluntary_exit = build_voluntary_exit(
pre_state,
current_epoch,
validator_index,
privkey,
)
with pytest.raises(AssertionError):
process_voluntary_exit(pre_state, voluntary_exit)
return pre_state, voluntary_exit, None
def test_validator_not_active_long_enough(state):
pre_state = deepcopy(state)
#
# setup pre_state
#
current_epoch = get_current_epoch(pre_state)
validator_index = get_active_validator_indices(
pre_state.validator_registry, current_epoch)[0]
privkey = pubkey_to_privkey[
pre_state.validator_registry[validator_index].pubkey]
# but validator already has initiated exit
pre_state.validator_registry[validator_index].initiated_exit = True
#
# build voluntary exit
#
voluntary_exit = build_voluntary_exit(
pre_state,
current_epoch,
validator_index,
privkey,
)
assert (current_epoch -
pre_state.validator_registry[validator_index].activation_epoch <
spec.PERSISTENT_COMMITTEE_PERIOD)
with pytest.raises(AssertionError):
process_voluntary_exit(pre_state, voluntary_exit)
return pre_state, voluntary_exit, None