eth2.0-specs/tests/phase0/block_processing/test_process_proposer_slash...

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2019-03-21 23:08:54 +00:00
from copy import deepcopy
import pytest
import build.phase0.spec as spec
from build.phase0.spec import (
get_balance,
get_current_epoch,
process_proposer_slashing,
)
from tests.phase0.helpers import (
get_valid_proposer_slashing,
)
# mark entire file as 'header'
pytestmark = pytest.mark.proposer_slashings
def run_proposer_slashing_processing(state, proposer_slashing, valid=True):
"""
Run ``process_proposer_slashing`` returning the pre and post state.
If ``valid == False``, run expecting ``AssertionError``
"""
post_state = deepcopy(state)
if not valid:
with pytest.raises(AssertionError):
process_proposer_slashing(post_state, proposer_slashing)
return state, None
process_proposer_slashing(post_state, proposer_slashing)
slashed_validator = post_state.validator_registry[proposer_slashing.proposer_index]
assert not slashed_validator.initiated_exit
assert slashed_validator.slashed
assert slashed_validator.exit_epoch < spec.FAR_FUTURE_EPOCH
assert slashed_validator.withdrawable_epoch < spec.FAR_FUTURE_EPOCH
# lost whistleblower reward
assert (
get_balance(post_state, proposer_slashing.proposer_index) <
get_balance(state, proposer_slashing.proposer_index)
)
return state, post_state
def test_success(state):
proposer_slashing = get_valid_proposer_slashing(state)
pre_state, post_state = run_proposer_slashing_processing(state, proposer_slashing)
return pre_state, proposer_slashing, post_state
def test_epochs_are_different(state):
proposer_slashing = get_valid_proposer_slashing(state)
# set slots to be in different epochs
proposer_slashing.header_2.slot += spec.SLOTS_PER_EPOCH
pre_state, post_state = run_proposer_slashing_processing(state, proposer_slashing, False)
return pre_state, proposer_slashing, post_state
def test_headers_are_same(state):
proposer_slashing = get_valid_proposer_slashing(state)
# set headers to be the same
proposer_slashing.header_2 = proposer_slashing.header_1
pre_state, post_state = run_proposer_slashing_processing(state, proposer_slashing, False)
return pre_state, proposer_slashing, post_state
def test_proposer_is_slashed(state):
proposer_slashing = get_valid_proposer_slashing(state)
# set proposer to slashed
state.validator_registry[proposer_slashing.proposer_index].slashed = True
pre_state, post_state = run_proposer_slashing_processing(state, proposer_slashing, False)
return pre_state, proposer_slashing, post_state
def test_proposer_is_withdrawn(state):
proposer_slashing = get_valid_proposer_slashing(state)
# set proposer withdrawable_epoch in past
current_epoch = get_current_epoch(state)
proposer_index = proposer_slashing.proposer_index
state.validator_registry[proposer_index].withdrawable_epoch = current_epoch - 1
pre_state, post_state = run_proposer_slashing_processing(state, proposer_slashing, False)
return pre_state, proposer_slashing, post_state