test rule 3
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@ -1682,12 +1682,16 @@ def process_justification_and_finalization(state: BeaconState) -> None:
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state.previous_justified_root = state.current_justified_root
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state.justification_bitfield = (state.justification_bitfield << 1) % 2**64
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previous_boundary_attesting_balance = get_attesting_balance(state, get_previous_epoch_boundary_attestations(state))
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print(previous_boundary_attesting_balance)
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if previous_boundary_attesting_balance * 3 >= get_previous_total_balance(state) * 2:
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print("prev success")
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state.current_justified_epoch = get_previous_epoch(state)
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state.current_justified_root = get_block_root(state, get_epoch_start_slot(state.current_justified_epoch))
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state.justification_bitfield |= (1 << 1)
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current_boundary_attesting_balance = get_attesting_balance(state, get_current_epoch_boundary_attestations(state))
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print(current_boundary_attesting_balance)
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if current_boundary_attesting_balance * 3 >= get_current_total_balance(state) * 2:
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print("cur success")
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state.current_justified_epoch = get_current_epoch(state)
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state.current_justified_root = get_block_root(state, get_epoch_start_slot(state.current_justified_epoch))
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state.justification_bitfield |= (1 << 0)
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@ -47,11 +47,50 @@ def check_finality(state,
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assert state.finalized_root == prev_state.finalized_root
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def next_epoch_with_attestations(state,
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fill_cur_epoch,
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fill_prev_epoch):
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post_state = deepcopy(state)
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blocks = []
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for slot in range(spec.SLOTS_PER_EPOCH):
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print("slot: %s", post_state.slot)
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block = build_empty_block_for_next_slot(post_state)
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if fill_prev_epoch:
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print("prev")
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slot_to_attest = post_state.slot - spec.SLOTS_PER_EPOCH + 1
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prev_attestation = get_valid_attestation(post_state, slot_to_attest)
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block.body.attestations.append(prev_attestation)
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if fill_cur_epoch:
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print("cur")
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slot_to_attest = post_state.slot - spec.MIN_ATTESTATION_INCLUSION_DELAY + 1
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if slot_to_attest >= get_epoch_start_slot(get_current_epoch(post_state)):
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cur_attestation = get_valid_attestation(post_state, slot_to_attest)
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fill_aggregate_attestation(post_state, cur_attestation)
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block.body.attestations.append(cur_attestation)
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state_transition(post_state, block)
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blocks.append(block)
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# if fill_prev_epoch:
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# assert len(post_state.previous_epoch_attestations) >= 0
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# else:
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# assert len(post_state.previous_epoch_attestations) == 0
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# if fill_cur_epoch:
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# assert len(post_state.current_epoch_attestations) >= 0
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# else:
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# assert len(post_state.current_epoch_attestations) == 0
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return state, blocks, post_state
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def test_finality_from_genesis_rule_4(state):
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test_state = deepcopy(state)
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blocks = []
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for epoch in range(6):
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prev_state = deepcopy(test_state)
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old_current_justified_epoch = test_state.current_justified_epoch
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old_current_justified_root = test_state.current_justified_root
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for slot in range(spec.SLOTS_PER_EPOCH):
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@ -67,14 +106,14 @@ def test_finality_from_genesis_rule_4(state):
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blocks.append(block)
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if epoch == 0:
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check_finality(test_state, state, False, False, False)
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check_finality(test_state, prev_state, False, False, False)
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elif epoch == 1:
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check_finality(test_state, state, False, False, False)
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check_finality(test_state, prev_state, False, False, False)
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elif epoch == 2:
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check_finality(test_state, state, True, False, False)
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check_finality(test_state, prev_state, True, False, False)
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elif epoch >= 3:
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# rule 4 of finaliy
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check_finality(test_state, state, True, True, True)
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check_finality(test_state, prev_state, True, True, True)
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assert test_state.finalized_epoch == old_current_justified_epoch
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assert test_state.finalized_root == old_current_justified_root
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@ -90,6 +129,7 @@ def test_finality_rule_1(state):
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blocks = []
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for epoch in range(3):
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prev_state = deepcopy(test_state)
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old_previous_justified_epoch = test_state.previous_justified_epoch
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old_previous_justified_root = test_state.previous_justified_root
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for slot in range(spec.SLOTS_PER_EPOCH):
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@ -106,15 +146,17 @@ def test_finality_rule_1(state):
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blocks.append(block)
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if epoch == 0:
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check_finality(test_state, state, True, False, False)
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check_finality(test_state, prev_state, True, False, False)
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elif epoch == 1:
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check_finality(test_state, state, True, True, False)
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check_finality(test_state, prev_state, True, True, False)
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elif epoch == 2:
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# finalized by rule 1
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check_finality(test_state, state, True, True, True)
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check_finality(test_state, prev_state, True, True, True)
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assert test_state.finalized_epoch == old_previous_justified_epoch
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assert test_state.finalized_root == old_previous_justified_root
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return state, blocks, test_state
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def test_finality_rule_2(state):
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# get past first two epochs that finality does not run on
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@ -127,30 +169,86 @@ def test_finality_rule_2(state):
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for epoch in range(3):
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old_previous_justified_epoch = test_state.previous_justified_epoch
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old_previous_justified_root = test_state.previous_justified_root
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for slot in range(spec.SLOTS_PER_EPOCH):
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attestation = None
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if epoch == 0:
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slot_to_attest = test_state.slot - spec.MIN_ATTESTATION_INCLUSION_DELAY + 1
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if slot_to_attest >= get_epoch_start_slot(get_current_epoch(state)):
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attestation = get_valid_attestation(test_state, slot_to_attest)
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fill_aggregate_attestation(test_state, attestation)
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if epoch == 2:
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slot_to_attest = test_state.slot - spec.SLOTS_PER_EPOCH + 1
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attestation = get_valid_attestation(test_state, slot_to_attest)
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fill_aggregate_attestation(test_state, attestation)
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block = build_empty_block_for_next_slot(test_state)
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if attestation:
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block.body.attestations.append(attestation)
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state_transition(test_state, block)
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blocks.append(block)
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if epoch == 0:
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check_finality(test_state, state, True, False, False)
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elif epoch == 1:
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check_finality(test_state, state, True, True, False)
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elif epoch == 2:
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prev_state, blocks, test_state = next_epoch_with_attestations(test_state, True, False)
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check_finality(test_state, prev_state, True, False, False)
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if epoch == 1:
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prev_state, blocks, test_state = next_epoch_with_attestations(test_state, False, False)
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check_finality(test_state, prev_state, False, True, False)
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if epoch == 2:
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prev_state, blocks, test_state = next_epoch_with_attestations(test_state, False, True)
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# finalized by rule 2
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check_finality(test_state, state, True, True, True)
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check_finality(test_state, prev_state, True, False, True)
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assert test_state.finalized_epoch == old_previous_justified_epoch
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assert test_state.finalized_root == old_previous_justified_root
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return state, blocks, test_state
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def test_finality_rule_3(state):
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# get past first two epochs that finality does not run on
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next_epoch(state)
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next_epoch(state)
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test_state = deepcopy(state)
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blocks = []
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for epoch in range(2):
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prev_state = deepcopy(test_state)
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for slot in range(spec.SLOTS_PER_EPOCH):
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slot_to_attest = test_state.slot - spec.MIN_ATTESTATION_INCLUSION_DELAY + 1
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attestation = get_valid_attestation(test_state, slot_to_attest)
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fill_aggregate_attestation(test_state, attestation)
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block = build_empty_block_for_next_slot(test_state)
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block.body.attestations.append(attestation)
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state_transition(test_state, block)
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blocks.append(block)
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if epoch == 0:
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check_finality(test_state, prev_state, True, False, False)
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if epoch == 1:
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check_finality(test_state, prev_state, True, True, True)
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prev_state = deepcopy(test_state)
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next_epoch(test_state)
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check_finality(test_state, prev_state, False, True, False)
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prev_state = deepcopy(test_state)
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for slot in range(spec.SLOTS_PER_EPOCH):
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slot_to_attest = test_state.slot - spec.SLOTS_PER_EPOCH + 1
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attestation = get_valid_attestation(test_state, slot_to_attest)
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fill_aggregate_attestation(test_state, attestation)
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block = build_empty_block_for_next_slot(test_state)
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block.body.attestations.append(attestation)
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state_transition(test_state, block)
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assert len(test_state.previous_epoch_attestations) >= 0
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assert len(test_state.current_epoch_attestations) == 0
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blocks.append(block)
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check_finality(test_state, prev_state, True, False, True)
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prev_state = deepcopy(test_state)
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for slot in range(spec.SLOTS_PER_EPOCH):
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prev_slot_to_attest = test_state.slot - spec.SLOTS_PER_EPOCH + 1
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prev_attestation = get_valid_attestation(test_state, prev_slot_to_attest)
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fill_aggregate_attestation(test_state, prev_attestation)
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cur_slot_to_attest = test_state.slot - spec.MIN_ATTESTATION_INCLUSION_DELAY + 1
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cur_attestation = get_valid_attestation(test_state, cur_slot_to_attest)
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fill_aggregate_attestation(test_state, cur_attestation)
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block = build_empty_block_for_next_slot(test_state)
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block.body.attestations.append(prev_attestation)
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block.body.attestations.append(cur_attestation)
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state_transition(test_state, block)
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assert len(test_state.previous_epoch_attestations) >= 0
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assert len(test_state.current_epoch_attestations) >= 0
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blocks.append(block)
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check_finality(test_state, prev_state, True, True, True)
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return state, blocks, test_state
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