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test for process_rewards_and_penalties: Case when some eligible attestations are slashed. Modifies attesting_balance and consequently rewards/penalties.

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This commit is contained in:
Denis Bogdanas 2019-10-07 13:50:24 +03:00
parent 1a65570c9b
commit baded82247
1 changed files with 39 additions and 0 deletions
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39
test_libs/pyspec/eth2spec/test/phase_0/epoch_processing/test_process_rewards_and_penalties.py
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@ -170,3 +170,42 @@ def test_duplicate_attestation(spec, state):
for index in participants:
assert state.balances[index] < single_state.balances[index]
assert single_state.balances[index] == dup_state.balances[index]
@with_all_phases
@spec_state_test
# Case when some eligible attestations are slashed. Modifies attesting_balance and consequently rewards/penalties.
def test_attestations_some_slashed(spec, state):
attestations = []
for slot in range(spec.SLOTS_PER_EPOCH + spec.MIN_ATTESTATION_INCLUSION_DELAY):
# create an attestation for each slot in epoch
if slot < spec.SLOTS_PER_EPOCH:
attestation = get_valid_attestation(spec, state, signed=True)
attestations.append(attestation)
# fill each created slot in state after inclusion delay
if slot - spec.MIN_ATTESTATION_INCLUSION_DELAY >= 0:
include_att = attestations[slot - spec.MIN_ATTESTATION_INCLUSION_DELAY]
add_attestations_to_state(spec, state, [include_att], state.slot)
next_slot(spec, state)
attesting_indices_before_slashings = spec.get_unslashed_attesting_indices(state, attestations)
# Slash maximum amount of validators allowed per epoch.
for i in range(spec.MIN_PER_EPOCH_CHURN_LIMIT):
spec.slash_validator(state, list(attesting_indices_before_slashings)[i])
assert spec.compute_epoch_of_slot(state.slot) == spec.GENESIS_EPOCH + 1
assert len(state.previous_epoch_attestations) == spec.SLOTS_PER_EPOCH
pre_state = deepcopy(state)
yield from run_process_rewards_and_penalties(spec, state)
attesting_indices = spec.get_unslashed_attesting_indices(state, attestations)
assert len(attesting_indices) > 0
assert len(attesting_indices_before_slashings) - len(attesting_indices) == spec.MIN_PER_EPOCH_CHURN_LIMIT
for index in range(len(pre_state.validators)):
if index in attesting_indices:
assert state.balances[index] > pre_state.balances[index]
else:
assert state.balances[index] < pre_state.balances[index]