136 lines
4.5 KiB
Python
136 lines
4.5 KiB
Python
import pytest
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import eth2spec.phase0.spec as spec
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from eth2spec.phase0.spec import (
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get_active_validator_indices,
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get_beacon_proposer_index,
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get_current_epoch,
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process_transfer,
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)
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from tests.helpers import (
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get_valid_transfer,
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next_epoch,
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)
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from .block_test_helpers import spec_state_test
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def run_transfer_processing(state, transfer, valid=True):
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"""
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Run ``process_transfer``, yielding:
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- pre-state ('pre')
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- transfer ('transfer')
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- post-state ('post').
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If ``valid == False``, run expecting ``AssertionError``
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"""
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proposer_index = get_beacon_proposer_index(state)
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pre_transfer_sender_balance = state.balances[transfer.sender]
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pre_transfer_recipient_balance = state.balances[transfer.recipient]
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pre_transfer_proposer_balance = state.balances[proposer_index]
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yield 'pre', state
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yield 'transfer', transfer
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if not valid:
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with pytest.raises(AssertionError):
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process_transfer(state, transfer)
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yield 'post', None
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return
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process_transfer(state, transfer)
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yield 'post', state
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sender_balance = state.balances[transfer.sender]
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recipient_balance = state.balances[transfer.recipient]
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assert sender_balance == pre_transfer_sender_balance - transfer.amount - transfer.fee
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assert recipient_balance == pre_transfer_recipient_balance + transfer.amount
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assert state.balances[proposer_index] == pre_transfer_proposer_balance + transfer.fee
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@spec_state_test
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def test_success_non_activated(state):
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transfer = get_valid_transfer(state)
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# un-activate so validator can transfer
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state.validator_registry[transfer.sender].activation_eligibility_epoch = spec.FAR_FUTURE_EPOCH
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yield from run_transfer_processing(state, transfer)
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@spec_state_test
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def test_success_withdrawable(state):
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next_epoch(state)
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transfer = get_valid_transfer(state)
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# withdrawable_epoch in past so can transfer
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state.validator_registry[transfer.sender].withdrawable_epoch = get_current_epoch(state) - 1
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yield from run_transfer_processing(state, transfer)
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@spec_state_test
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def test_success_active_above_max_effective(state):
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sender_index = get_active_validator_indices(state, get_current_epoch(state))[-1]
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amount = spec.MAX_EFFECTIVE_BALANCE // 32
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state.balances[sender_index] = spec.MAX_EFFECTIVE_BALANCE + amount
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transfer = get_valid_transfer(state, sender_index=sender_index, amount=amount, fee=0)
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yield from run_transfer_processing(state, transfer)
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@spec_state_test
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def test_active_but_transfer_past_effective_balance(state):
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sender_index = get_active_validator_indices(state, get_current_epoch(state))[-1]
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amount = spec.MAX_EFFECTIVE_BALANCE // 32
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state.balances[sender_index] = spec.MAX_EFFECTIVE_BALANCE
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transfer = get_valid_transfer(state, sender_index=sender_index, amount=amount, fee=0)
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yield from run_transfer_processing(state, transfer, False)
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@spec_state_test
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def test_incorrect_slot(state):
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transfer = get_valid_transfer(state, slot=state.slot+1)
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# un-activate so validator can transfer
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state.validator_registry[transfer.sender].activation_epoch = spec.FAR_FUTURE_EPOCH
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yield from run_transfer_processing(state, transfer, False)
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@spec_state_test
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def test_insufficient_balance(state):
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sender_index = get_active_validator_indices(state, get_current_epoch(state))[-1]
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amount = spec.MAX_EFFECTIVE_BALANCE
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state.balances[sender_index] = spec.MAX_EFFECTIVE_BALANCE
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transfer = get_valid_transfer(state, sender_index=sender_index, amount=amount + 1, fee=0)
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# un-activate so validator can transfer
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state.validator_registry[transfer.sender].activation_epoch = spec.FAR_FUTURE_EPOCH
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yield from run_transfer_processing(state, transfer, False)
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@spec_state_test
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def test_no_dust(state):
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sender_index = get_active_validator_indices(state, get_current_epoch(state))[-1]
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balance = state.balances[sender_index]
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transfer = get_valid_transfer(state, sender_index=sender_index, amount=balance - spec.MIN_DEPOSIT_AMOUNT + 1, fee=0)
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# un-activate so validator can transfer
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state.validator_registry[transfer.sender].activation_epoch = spec.FAR_FUTURE_EPOCH
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yield from run_transfer_processing(state, transfer, False)
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@spec_state_test
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def test_invalid_pubkey(state):
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transfer = get_valid_transfer(state)
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state.validator_registry[transfer.sender].withdrawal_credentials = spec.ZERO_HASH
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# un-activate so validator can transfer
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state.validator_registry[transfer.sender].activation_epoch = spec.FAR_FUTURE_EPOCH
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yield from run_transfer_processing(state, transfer, False)
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