Rework `on_block` unit tests

This commit is contained in:
Hsiao-Wei Wang 2021-06-18 17:39:46 +08:00
parent 42eae81013
commit fb2465db45
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GPG Key ID: 1111A8A81778319E
5 changed files with 164 additions and 400 deletions

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@ -1,4 +1,5 @@
from eth_utils import encode_hex
from eth2spec.test.helpers.attestations import next_epoch_with_attestations
def get_anchor_root(spec, state):
@ -18,7 +19,7 @@ def add_block_to_store(spec, store, signed_block):
spec.on_block(store, signed_block)
def tick_and_run_on_block(spec, store, signed_block, test_steps=None):
def tick_and_add_block(spec, store, signed_block, test_steps=None, valid=True):
if test_steps is None:
test_steps = []
@ -28,7 +29,7 @@ def tick_and_run_on_block(spec, store, signed_block, test_steps=None):
if store.time < block_time:
on_tick_and_append_step(spec, store, block_time, test_steps)
yield from run_on_block(spec, store, signed_block, test_steps)
yield from add_block(spec, store, signed_block, test_steps, valid=valid)
def tick_and_run_on_attestation(spec, store, attestation, test_steps=None):
@ -73,28 +74,47 @@ def on_tick_and_append_step(spec, store, time, test_steps):
test_steps.append({'tick': int(time)})
def run_on_block(spec, store, signed_block, test_steps, valid=True):
yield get_block_file_name(signed_block), signed_block
def run_on_block(spec, store, signed_block, valid=True):
if not valid:
try:
spec.on_block(store, signed_block)
except AssertionError:
test_steps.append({
'block': get_block_file_name(signed_block),
'valid': True,
})
return
else:
assert False
spec.on_block(store, signed_block)
assert store.blocks[signed_block.message.hash_tree_root()] == signed_block.message
def add_block(spec, store, signed_block, test_steps=None, valid=True):
if test_steps is None:
test_steps = []
yield get_block_file_name(signed_block), signed_block
if not valid:
try:
run_on_block(spec, store, signed_block, valid=True)
except AssertionError:
test_steps.append({
'block': get_block_file_name(signed_block),
'valid': False,
})
return
else:
assert False
run_on_block(spec, store, signed_block, valid=True)
test_steps.append({'block': get_block_file_name(signed_block)})
# An on_block step implies receiving block's attestations
for attestation in signed_block.message.body.attestations:
spec.on_attestation(store, attestation)
assert store.blocks[signed_block.message.hash_tree_root()] == signed_block.message
block_root = signed_block.message.hash_tree_root()
assert store.blocks[block_root] == signed_block.message
assert store.block_states[block_root].hash_tree_root() == signed_block.message.state_root
test_steps.append({
'checks': {
'time': int(store.time),
@ -113,3 +133,20 @@ def get_formatted_head_output(spec, store):
'slot': int(slot),
'root': encode_hex(head),
}
def apply_next_epoch_with_attestations(spec, state, store, test_steps=None):
if test_steps is None:
test_steps = []
_, new_signed_blocks, post_state = next_epoch_with_attestations(spec, state, True, False)
for signed_block in new_signed_blocks:
block = signed_block.message
yield from tick_and_add_block(spec, store, signed_block, test_steps)
block_root = block.hash_tree_root()
assert store.blocks[block_root] == block
last_signed_block = signed_block
assert store.block_states[block_root].hash_tree_root() == post_state.hash_tree_root()
return post_state, store, last_signed_block

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@ -11,12 +11,12 @@ from eth2spec.test.helpers.block import build_empty_block_for_next_slot
from eth2spec.test.helpers.constants import MINIMAL
from eth2spec.test.helpers.fork_choice import (
tick_and_run_on_attestation,
tick_and_run_on_block,
tick_and_add_block,
get_anchor_root,
get_genesis_forkchoice_store_and_block,
get_formatted_head_output,
on_tick_and_append_step,
run_on_block,
add_block,
)
from eth2spec.test.helpers.state import (
next_epoch,
@ -68,12 +68,12 @@ def test_chain_no_attestations(spec, state):
# On receiving a block of `GENESIS_SLOT + 1` slot
block_1 = build_empty_block_for_next_slot(spec, state)
signed_block_1 = state_transition_and_sign_block(spec, state, block_1)
yield from tick_and_run_on_block(spec, store, signed_block_1, test_steps)
yield from tick_and_add_block(spec, store, signed_block_1, test_steps)
# On receiving a block of next epoch
block_2 = build_empty_block_for_next_slot(spec, state)
signed_block_2 = state_transition_and_sign_block(spec, state, block_2)
yield from tick_and_run_on_block(spec, store, signed_block_2, test_steps)
yield from tick_and_add_block(spec, store, signed_block_2, test_steps)
assert spec.get_head(store) == spec.hash_tree_root(block_2)
test_steps.append({
@ -107,14 +107,14 @@ def test_split_tie_breaker_no_attestations(spec, state):
block_1_state = genesis_state.copy()
block_1 = build_empty_block_for_next_slot(spec, block_1_state)
signed_block_1 = state_transition_and_sign_block(spec, block_1_state, block_1)
yield from tick_and_run_on_block(spec, store, signed_block_1, test_steps)
yield from tick_and_add_block(spec, store, signed_block_1, test_steps)
# additional block at slot 1
block_2_state = genesis_state.copy()
block_2 = build_empty_block_for_next_slot(spec, block_2_state)
block_2.body.graffiti = b'\x42' * 32
signed_block_2 = state_transition_and_sign_block(spec, block_2_state, block_2)
yield from tick_and_run_on_block(spec, store, signed_block_2, test_steps)
yield from tick_and_add_block(spec, store, signed_block_2, test_steps)
highest_root = max(spec.hash_tree_root(block_1), spec.hash_tree_root(block_2))
assert spec.get_head(store) == highest_root
@ -150,14 +150,14 @@ def test_shorter_chain_but_heavier_weight(spec, state):
for _ in range(3):
long_block = build_empty_block_for_next_slot(spec, long_state)
signed_long_block = state_transition_and_sign_block(spec, long_state, long_block)
yield from tick_and_run_on_block(spec, store, signed_long_block, test_steps)
yield from tick_and_add_block(spec, store, signed_long_block, test_steps)
# build short tree
short_state = genesis_state.copy()
short_block = build_empty_block_for_next_slot(spec, short_state)
short_block.body.graffiti = b'\x42' * 32
signed_short_block = state_transition_and_sign_block(spec, short_state, short_block)
yield from tick_and_run_on_block(spec, store, signed_short_block, test_steps)
yield from tick_and_add_block(spec, store, signed_short_block, test_steps)
short_attestation = get_valid_attestation(spec, short_state, short_block.slot, signed=True)
yield from tick_and_run_on_attestation(spec, store, short_attestation, test_steps)
@ -200,7 +200,7 @@ def test_filtered_block_tree(spec, state):
current_time = state.slot * spec.config.SECONDS_PER_SLOT + store.genesis_time
on_tick_and_append_step(spec, store, current_time, test_steps)
for signed_block in signed_blocks:
yield from run_on_block(spec, store, signed_block, test_steps)
yield from add_block(spec, store, signed_block, test_steps)
assert store.justified_checkpoint == state.current_justified_checkpoint
@ -247,7 +247,7 @@ def test_filtered_block_tree(spec, state):
on_tick_and_append_step(spec, store, current_time, test_steps)
# include rogue block and associated attestations in the store
yield from run_on_block(spec, store, signed_rogue_block, test_steps)
yield from add_block(spec, store, signed_rogue_block, test_steps)
for attestation in attestations:
yield from tick_and_run_on_attestation(spec, store, attestation, test_steps)

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@ -1,38 +1,30 @@
from eth2spec.utils.ssz.ssz_impl import hash_tree_root
from eth2spec.test.context import MINIMAL, spec_state_test, with_all_phases, with_presets
from eth2spec.test.helpers.attestations import next_epoch_with_attestations
from eth2spec.test.helpers.block import build_empty_block_for_next_slot, build_empty_block
from eth2spec.test.helpers.block import (
build_empty_block_for_next_slot,
build_empty_block,
transition_unsigned_block,
sign_block,
)
from eth2spec.test.helpers.fork_choice import (
get_genesis_forkchoice_store_and_block,
on_tick_and_append_step,
run_on_block,
tick_and_run_on_block,
add_block,
tick_and_add_block,
apply_next_epoch_with_attestations,
)
from eth2spec.test.helpers.state import (
next_epoch,
state_transition_and_sign_block,
)
from eth2spec.test.helpers.state import next_epoch, state_transition_and_sign_block
def apply_next_epoch_with_attestations(spec, state, store, test_steps=None):
if test_steps is None:
test_steps = []
_, new_signed_blocks, post_state = next_epoch_with_attestations(spec, state, True, False)
for signed_block in new_signed_blocks:
block = signed_block.message
block_root = hash_tree_root(block)
store.blocks[block_root] = block
store.block_states[block_root] = post_state
yield from tick_and_run_on_block(spec, store, signed_block, test_steps)
last_signed_block = signed_block
return post_state, store, last_signed_block
@with_all_phases
@spec_state_test
def test_basic(spec, state):
# Initialization
test_steps = []
# Initialization
store, anchor_block = get_genesis_forkchoice_store_and_block(spec, state)
yield 'anchor_state', state
yield 'anchor_block', anchor_block
@ -43,14 +35,14 @@ def test_basic(spec, state):
# On receiving a block of `GENESIS_SLOT + 1` slot
block = build_empty_block_for_next_slot(spec, state)
signed_block = state_transition_and_sign_block(spec, state, block)
yield from tick_and_run_on_block(spec, store, signed_block, test_steps)
yield from tick_and_add_block(spec, store, signed_block, test_steps)
assert spec.get_head(store) == signed_block.message.hash_tree_root()
# On receiving a block of next epoch
store.time = current_time + spec.config.SECONDS_PER_SLOT * spec.SLOTS_PER_EPOCH
block = build_empty_block(spec, state, state.slot + spec.SLOTS_PER_EPOCH)
signed_block = state_transition_and_sign_block(spec, state, block)
yield from tick_and_run_on_block(spec, store, signed_block, test_steps)
yield from tick_and_add_block(spec, store, signed_block, test_steps)
assert spec.get_head(store) == signed_block.message.hash_tree_root()
yield 'steps', test_steps
@ -74,6 +66,7 @@ def test_on_block_checkpoints(spec, state):
# Run for 1 epoch with full attestations
next_epoch(spec, state)
on_tick_and_append_step(spec, store, store.time + state.slot * spec.config.SECONDS_PER_SLOT, test_steps)
state, store, last_signed_block = yield from apply_next_epoch_with_attestations(spec, state, store, test_steps)
last_block_root = hash_tree_root(last_signed_block.message)
assert spec.get_head(store) == last_block_root
@ -90,7 +83,7 @@ def test_on_block_checkpoints(spec, state):
block = build_empty_block_for_next_slot(spec, fin_state)
signed_block = state_transition_and_sign_block(spec, fin_state.copy(), block)
yield from tick_and_run_on_block(spec, store, signed_block, test_steps)
yield from tick_and_add_block(spec, store, signed_block, test_steps)
assert spec.get_head(store) == signed_block.message.hash_tree_root()
yield 'steps', test_steps
@ -107,233 +100,36 @@ def test_on_block_future_block(spec, state):
on_tick_and_append_step(spec, store, current_time, test_steps)
assert store.time == current_time
# do not tick time
# Do NOT tick time to `GENESIS_SLOT + 1` slot
# Fail receiving block of `GENESIS_SLOT + 1` slot
block = build_empty_block_for_next_slot(spec, state)
signed_block = state_transition_and_sign_block(spec, state, block)
run_on_block(spec, store, signed_block, test_steps, valid=False)
yield from add_block(spec, store, signed_block, test_steps, valid=False)
yield 'steps', test_steps
# @with_all_phases
# @spec_state_test
# def test_on_block_bad_parent_root(spec, state):
# test_steps = []
# # Initialization
# store = get_genesis_forkchoice_store(spec, state)
# time = 100
# on_tick_and_append_step(spec, store, time, test_steps)
@with_all_phases
@spec_state_test
def test_on_block_bad_parent_root(spec, state):
test_steps = []
# Initialization
store, anchor_block = get_genesis_forkchoice_store_and_block(spec, state)
yield 'anchor_state', state
yield 'anchor_block', anchor_block
current_time = state.slot * spec.config.SECONDS_PER_SLOT + store.genesis_time
on_tick_and_append_step(spec, store, current_time, test_steps)
assert store.time == current_time
# # Fail receiving block of `GENESIS_SLOT + 1` slot
# block = build_empty_block_for_next_slot(spec, state)
# transition_unsigned_block(spec, state, block)
# block.state_root = state.hash_tree_root()
# Fail receiving block of `GENESIS_SLOT + 1` slot
block = build_empty_block_for_next_slot(spec, state)
transition_unsigned_block(spec, state, block)
block.state_root = state.hash_tree_root()
# block.parent_root = b'\x45' * 32
block.parent_root = b'\x45' * 32
# signed_block = sign_block(spec, state, block)
signed_block = sign_block(spec, state, block)
# run_on_block(spec, store, signed_block, test_steps, valid=False)
yield from add_block(spec, store, signed_block, test_steps, valid=False)
# @with_all_phases
# @spec_state_test
# def test_on_block_before_finalized(spec, state):
# test_steps = []
# # Initialization
# store = get_genesis_forkchoice_store(spec, state)
# time = 100
# on_tick_and_append_step(spec, store, time, test_steps)
# store.finalized_checkpoint = spec.Checkpoint(
# epoch=store.finalized_checkpoint.epoch + 2,
# root=store.finalized_checkpoint.root
# )
# # Fail receiving block of `GENESIS_SLOT + 1` slot
# block = build_empty_block_for_next_slot(spec, state)
# signed_block = state_transition_and_sign_block(spec, state, block)
# run_on_block(spec, store, signed_block, test_steps, valid=False)
# @with_all_phases
# @spec_state_test
# def test_on_block_finalized_skip_slots(spec, state):
# test_steps = []
# # Initialization
# store = get_genesis_forkchoice_store(spec, state)
# time = 100
# on_tick_and_append_step(spec, store, time, test_steps)
# store.finalized_checkpoint = spec.Checkpoint(
# epoch=store.finalized_checkpoint.epoch + 2,
# root=store.finalized_checkpoint.root
# )
# # Build block that includes the skipped slots up to finality in chain
# block = build_empty_block(spec, state, spec.compute_start_slot_at_epoch(store.finalized_checkpoint.epoch) + 2)
# signed_block = state_transition_and_sign_block(spec, state, block)
# on_tick_and_append_step(spec, store, store.time + state.slot * spec.config.SECONDS_PER_SLOT, test_steps)
# run_on_block(spec, store, signed_block, test_steps)
# @with_all_phases
# @spec_state_test
# def test_on_block_finalized_skip_slots_not_in_skip_chain(spec, state):
# test_steps = []
# # Initialization
# transition_to(spec, state, state.slot + spec.SLOTS_PER_EPOCH - 1)
# block = build_empty_block_for_next_slot(spec, state)
# transition_unsigned_block(spec, state, block)
# block.state_root = state.hash_tree_root()
# store = spec.get_forkchoice_store(state, block)
# store.finalized_checkpoint = spec.Checkpoint(
# epoch=store.finalized_checkpoint.epoch + 2,
# root=store.finalized_checkpoint.root
# )
# # First transition through the epoch to ensure no skipped slots
# state, store, _ = apply_next_epoch_with_attestations(spec, state, store)
# # Now build a block at later slot than finalized epoch
# # Includes finalized block in chain, but not at appropriate skip slot
# block = build_empty_block(spec, state, spec.compute_start_slot_at_epoch(store.finalized_checkpoint.epoch) + 2)
# signed_block = state_transition_and_sign_block(spec, state, block)
# on_tick_and_append_step(spec, store, store.time + state.slot * spec.config.SECONDS_PER_SLOT, test_steps)
# run_on_block(spec, store, signed_block, test_steps, valid=False)
# @with_all_phases
# @spec_state_test
# def test_on_block_update_justified_checkpoint_within_safe_slots(spec, state):
# test_steps = []
# # Initialization
# store = get_genesis_forkchoice_store(spec, state)
# time = 0
# on_tick_and_append_step(spec, store, time, test_steps)
# next_epoch(spec, state)
# on_tick_and_append_step(spec, store, store.time + state.slot * spec.config.SECONDS_PER_SLOT, test_steps)
# state, store, last_signed_block = apply_next_epoch_with_attestations(spec, state, store)
# next_epoch(spec, state)
# on_tick_and_append_step(spec, store, store.time + state.slot * spec.config.SECONDS_PER_SLOT, test_steps)
# last_block_root = hash_tree_root(last_signed_block.message)
# # Mock the justified checkpoint
# just_state = store.block_states[last_block_root]
# new_justified = spec.Checkpoint(
# epoch=just_state.current_justified_checkpoint.epoch + 1,
# root=b'\x77' * 32,
# )
# just_state.current_justified_checkpoint = new_justified
# block = build_empty_block_for_next_slot(spec, just_state)
# signed_block = state_transition_and_sign_block(spec, deepcopy(just_state), block)
# assert spec.get_current_slot(store) % spec.SLOTS_PER_EPOCH < spec.SAFE_SLOTS_TO_UPDATE_JUSTIFIED
# run_on_block(spec, store, signed_block, test_steps)
# assert store.justified_checkpoint == new_justified
# @with_all_phases
# @spec_state_test
# def test_on_block_outside_safe_slots_and_multiple_better_justified(spec, state):
# test_steps = []
# # Initialization
# store = get_genesis_forkchoice_store(spec, state)
# time = 0
# on_tick_and_append_step(spec, store, time, test_steps)
# next_epoch(spec, state)
# on_tick_and_append_step(spec, store, store.time + state.slot * spec.config.SECONDS_PER_SLOT, test_steps)
# state, store, last_signed_block = apply_next_epoch_with_attestations(spec, state, store)
# next_epoch(spec, state)
# on_tick_and_append_step(spec, store, store.time + state.slot * spec.config.SECONDS_PER_SLOT, test_steps)
# last_block_root = hash_tree_root(last_signed_block.message)
# # Mock justified block in store
# just_block = build_empty_block_for_next_slot(spec, state)
# # Slot is same as justified checkpoint so does not trigger an override in the store
# just_block.slot = spec.compute_start_slot_at_epoch(store.justified_checkpoint.epoch)
# store.blocks[just_block.hash_tree_root()] = just_block
# # Step time past safe slots
# time = store.time + spec.SAFE_SLOTS_TO_UPDATE_JUSTIFIED * spec.config.SECONDS_PER_SLOT
# on_tick_and_append_step(spec, store, time, test_steps)
# assert spec.get_current_slot(store) % spec.SLOTS_PER_EPOCH >= spec.SAFE_SLOTS_TO_UPDATE_JUSTIFIED
# previously_justified = store.justified_checkpoint
# # Add a series of new blocks with "better" justifications
# best_justified_checkpoint = spec.Checkpoint(epoch=0)
# for i in range(3, 0, -1):
# just_state = store.block_states[last_block_root]
# new_justified = spec.Checkpoint(
# epoch=previously_justified.epoch + i,
# root=just_block.hash_tree_root(),
# )
# if new_justified.epoch > best_justified_checkpoint.epoch:
# best_justified_checkpoint = new_justified
# just_state.current_justified_checkpoint = new_justified
# block = build_empty_block_for_next_slot(spec, just_state)
# signed_block = state_transition_and_sign_block(spec, deepcopy(just_state), block)
# run_on_block(spec, store, signed_block, test_steps)
# assert store.justified_checkpoint == previously_justified
# # ensure the best from the series was stored
# assert store.best_justified_checkpoint == best_justified_checkpoint
# @with_all_phases
# @spec_state_test
# def test_on_block_outside_safe_slots_but_finality(spec, state):
# test_steps = []
# # Initialization
# store = get_genesis_forkchoice_store(spec, state)
# time = 100
# on_tick_and_append_step(spec, store, time, test_steps)
# next_epoch(spec, state)
# on_tick_and_append_step(spec, store, store.time + state.slot * spec.config.SECONDS_PER_SLOT, test_steps)
# state, store, last_signed_block = apply_next_epoch_with_attestations(spec, state, store)
# next_epoch(spec, state)
# on_tick_and_append_step(spec, store, store.time + state.slot * spec.config.SECONDS_PER_SLOT, test_steps)
# last_block_root = hash_tree_root(last_signed_block.message)
# # Mock justified block in store
# just_block = build_empty_block_for_next_slot(spec, state)
# # Slot is same as justified checkpoint so does not trigger an override in the store
# just_block.slot = spec.compute_start_slot_at_epoch(store.justified_checkpoint.epoch)
# store.blocks[just_block.hash_tree_root()] = just_block
# # Step time past safe slots
# time = store.time + spec.SAFE_SLOTS_TO_UPDATE_JUSTIFIED * spec.config.SECONDS_PER_SLOT
# on_tick_and_append_step(spec, store, time, test_steps)
# assert spec.get_current_slot(store) % spec.SLOTS_PER_EPOCH >= spec.SAFE_SLOTS_TO_UPDATE_JUSTIFIED
# # Mock justified and finalized update in state
# just_fin_state = store.block_states[last_block_root]
# new_justified = spec.Checkpoint(
# epoch=store.justified_checkpoint.epoch + 1,
# root=just_block.hash_tree_root(),
# )
# new_finalized = spec.Checkpoint(
# epoch=store.finalized_checkpoint.epoch + 1,
# root=just_block.parent_root,
# )
# just_fin_state.current_justified_checkpoint = new_justified
# just_fin_state.finalized_checkpoint = new_finalized
# # Build and add block that includes the new justified/finalized info
# block = build_empty_block_for_next_slot(spec, just_fin_state)
# signed_block = state_transition_and_sign_block(spec, deepcopy(just_fin_state), block)
# run_on_block(spec, store, signed_block, test_steps)
# assert store.finalized_checkpoint == new_finalized
# assert store.justified_checkpoint == new_justified
yield 'steps', test_steps

View File

@ -1,123 +1,17 @@
from copy import deepcopy
from eth2spec.utils.ssz.ssz_impl import hash_tree_root
from eth2spec.test.context import with_all_phases, spec_state_test
from eth2spec.test.helpers.attestations import next_epoch_with_attestations
from eth2spec.test.helpers.block import build_empty_block_for_next_slot, sign_block, transition_unsigned_block, \
build_empty_block
from eth2spec.test.helpers.fork_choice import get_genesis_forkchoice_store
from eth2spec.test.context import with_all_phases, spec_state_test, with_phases, PHASE0
from eth2spec.test.helpers.block import build_empty_block_for_next_slot, transition_unsigned_block, \
build_empty_block, sign_block
from eth2spec.test.helpers.fork_choice import (
get_genesis_forkchoice_store,
run_on_block,
apply_next_epoch_with_attestations,
)
from eth2spec.test.helpers.state import next_epoch, state_transition_and_sign_block, transition_to
def run_on_block(spec, store, signed_block, valid=True):
if not valid:
try:
spec.on_block(store, signed_block)
except AssertionError:
return
else:
assert False
spec.on_block(store, signed_block)
assert store.blocks[hash_tree_root(signed_block.message)] == signed_block.message
def apply_next_epoch_with_attestations(spec, state, store):
_, new_signed_blocks, post_state = next_epoch_with_attestations(spec, state, True, False)
for signed_block in new_signed_blocks:
block = signed_block.message
block_root = hash_tree_root(block)
store.blocks[block_root] = block
store.block_states[block_root] = post_state
last_signed_block = signed_block
spec.on_tick(store, store.time + state.slot * spec.config.SECONDS_PER_SLOT)
return post_state, store, last_signed_block
@with_all_phases
@spec_state_test
def test_basic(spec, state):
# Initialization
store = get_genesis_forkchoice_store(spec, state)
time = 100
spec.on_tick(store, time)
assert store.time == time
# On receiving a block of `GENESIS_SLOT + 1` slot
block = build_empty_block_for_next_slot(spec, state)
signed_block = state_transition_and_sign_block(spec, state, block)
run_on_block(spec, store, signed_block)
# On receiving a block of next epoch
store.time = time + spec.config.SECONDS_PER_SLOT * spec.SLOTS_PER_EPOCH
block = build_empty_block(spec, state, state.slot + spec.SLOTS_PER_EPOCH)
signed_block = state_transition_and_sign_block(spec, state, block)
run_on_block(spec, store, signed_block)
# TODO: add tests for justified_root and finalized_root
@with_all_phases
@spec_state_test
def test_on_block_checkpoints(spec, state):
# Initialization
store = get_genesis_forkchoice_store(spec, state)
time = 100
spec.on_tick(store, time)
next_epoch(spec, state)
spec.on_tick(store, store.time + state.slot * spec.config.SECONDS_PER_SLOT)
state, store, last_signed_block = apply_next_epoch_with_attestations(spec, state, store)
next_epoch(spec, state)
spec.on_tick(store, store.time + state.slot * spec.config.SECONDS_PER_SLOT)
last_block_root = hash_tree_root(last_signed_block.message)
# Mock the finalized_checkpoint
fin_state = store.block_states[last_block_root]
fin_state.finalized_checkpoint = (
store.block_states[last_block_root].current_justified_checkpoint
)
block = build_empty_block_for_next_slot(spec, fin_state)
signed_block = state_transition_and_sign_block(spec, deepcopy(fin_state), block)
run_on_block(spec, store, signed_block)
@with_all_phases
@spec_state_test
def test_on_block_future_block(spec, state):
# Initialization
store = get_genesis_forkchoice_store(spec, state)
# do not tick time
# Fail receiving block of `GENESIS_SLOT + 1` slot
block = build_empty_block_for_next_slot(spec, state)
signed_block = state_transition_and_sign_block(spec, state, block)
run_on_block(spec, store, signed_block, False)
@with_all_phases
@spec_state_test
def test_on_block_bad_parent_root(spec, state):
# Initialization
store = get_genesis_forkchoice_store(spec, state)
time = 100
spec.on_tick(store, time)
# Fail receiving block of `GENESIS_SLOT + 1` slot
block = build_empty_block_for_next_slot(spec, state)
transition_unsigned_block(spec, state, block)
block.state_root = state.hash_tree_root()
block.parent_root = b'\x45' * 32
signed_block = sign_block(spec, state, block)
run_on_block(spec, store, signed_block, False)
@with_all_phases
@spec_state_test
def test_on_block_before_finalized(spec, state):
@ -134,7 +28,7 @@ def test_on_block_before_finalized(spec, state):
# Fail receiving block of `GENESIS_SLOT + 1` slot
block = build_empty_block_for_next_slot(spec, state)
signed_block = state_transition_and_sign_block(spec, state, block)
run_on_block(spec, store, signed_block, False)
run_on_block(spec, store, signed_block, valid=False)
@with_all_phases
@ -166,23 +60,31 @@ def test_on_block_finalized_skip_slots_not_in_skip_chain(spec, state):
transition_unsigned_block(spec, state, block)
block.state_root = state.hash_tree_root()
store = spec.get_forkchoice_store(state, block)
store.finalized_checkpoint = spec.Checkpoint(
epoch=store.finalized_checkpoint.epoch + 2,
root=store.finalized_checkpoint.root
)
# First transition through the epoch to ensure no skipped slots
state, store, _ = apply_next_epoch_with_attestations(spec, state, store)
current_time = state.slot * spec.config.SECONDS_PER_SLOT + store.genesis_time
spec.on_tick(store, current_time)
assert store.time == current_time
pre_finalized_checkpoint_epoch = store.finalized_checkpoint.epoch
# Finalized
for _ in range(3):
state, store, _ = yield from apply_next_epoch_with_attestations(spec, state, store)
assert store.finalized_checkpoint.epoch == pre_finalized_checkpoint_epoch + 1
# Now build a block at later slot than finalized epoch
# Includes finalized block in chain, but not at appropriate skip slot
block = build_empty_block(spec, state, spec.compute_start_slot_at_epoch(store.finalized_checkpoint.epoch) + 2)
signed_block = state_transition_and_sign_block(spec, state, block)
pre_state = store.block_states[block.hash_tree_root()]
block = build_empty_block(spec,
state=pre_state,
slot=spec.compute_start_slot_at_epoch(store.finalized_checkpoint.epoch) + 2)
signed_block = sign_block(spec, pre_state, block)
spec.on_tick(store, store.time + state.slot * spec.config.SECONDS_PER_SLOT)
run_on_block(spec, store, signed_block, False)
run_on_block(spec, store, signed_block, valid=False)
@with_all_phases
@with_phases([PHASE0])
@spec_state_test
def test_on_block_update_justified_checkpoint_within_safe_slots(spec, state):
# Initialization
@ -192,21 +94,33 @@ def test_on_block_update_justified_checkpoint_within_safe_slots(spec, state):
next_epoch(spec, state)
spec.on_tick(store, store.time + state.slot * spec.config.SECONDS_PER_SLOT)
state, store, last_signed_block = apply_next_epoch_with_attestations(spec, state, store)
state, store, last_signed_block = yield from apply_next_epoch_with_attestations(spec, state, store)
next_epoch(spec, state)
spec.on_tick(store, store.time + state.slot * spec.config.SECONDS_PER_SLOT)
last_block_root = hash_tree_root(last_signed_block.message)
last_block = last_signed_block.message
last_block_root = last_block.hash_tree_root()
# Mock the justified checkpoint
# NOTE: Mock the justified checkpoint
just_state = store.block_states[last_block_root]
new_justified = spec.Checkpoint(
epoch=just_state.current_justified_checkpoint.epoch + 1,
root=b'\x77' * 32,
)
just_state.current_justified_checkpoint = new_justified
just_state.current_justified_checkpoint = new_justified # Mutate `store`
assert store.block_states[last_block_root].hash_tree_root() == just_state.hash_tree_root()
block = build_empty_block_for_next_slot(spec, just_state)
signed_block = state_transition_and_sign_block(spec, deepcopy(just_state), block)
# NOTE: Mock store so that the modified state could be accessed
parent_block = last_signed_block.message.copy()
parent_block.state_root = just_state.hash_tree_root()
store.blocks[block.parent_root] = parent_block
store.block_states[block.parent_root] = just_state.copy()
assert block.parent_root in store.blocks.keys()
assert block.parent_root in store.block_states.keys()
signed_block = state_transition_and_sign_block(spec, just_state.copy(), block)
assert spec.get_current_slot(store) % spec.SLOTS_PER_EPOCH < spec.SAFE_SLOTS_TO_UPDATE_JUSTIFIED
run_on_block(spec, store, signed_block)
@ -223,10 +137,10 @@ def test_on_block_outside_safe_slots_and_multiple_better_justified(spec, state):
next_epoch(spec, state)
spec.on_tick(store, store.time + state.slot * spec.config.SECONDS_PER_SLOT)
state, store, last_signed_block = apply_next_epoch_with_attestations(spec, state, store)
state, store, last_signed_block = yield from apply_next_epoch_with_attestations(spec, state, store)
last_block_root = hash_tree_root(last_signed_block.message)
# Mock fictitious justified checkpoint in store
# NOTE: Mock fictitious justified checkpoint in store
store.justified_checkpoint = spec.Checkpoint(
epoch=spec.compute_epoch_at_slot(last_signed_block.message.slot),
root=spec.Root("0x4a55535449464945440000000000000000000000000000000000000000000000")
@ -248,6 +162,7 @@ def test_on_block_outside_safe_slots_and_multiple_better_justified(spec, state):
# Add a series of new blocks with "better" justifications
best_justified_checkpoint = spec.Checkpoint(epoch=0)
for i in range(3, 0, -1):
# Mutate store
just_state = store.block_states[last_block_root]
new_justified = spec.Checkpoint(
epoch=previously_justified.epoch + i,
@ -261,6 +176,14 @@ def test_on_block_outside_safe_slots_and_multiple_better_justified(spec, state):
block = build_empty_block_for_next_slot(spec, just_state)
signed_block = state_transition_and_sign_block(spec, deepcopy(just_state), block)
# NOTE: Mock store so that the modified state could be accessed
parent_block = store.blocks[last_block_root].copy()
parent_block.state_root = just_state.hash_tree_root()
store.blocks[block.parent_root] = parent_block
store.block_states[block.parent_root] = just_state.copy()
assert block.parent_root in store.blocks.keys()
assert block.parent_root in store.block_states.keys()
run_on_block(spec, store, signed_block)
assert store.justified_checkpoint == previously_justified
@ -273,15 +196,15 @@ def test_on_block_outside_safe_slots_and_multiple_better_justified(spec, state):
def test_on_block_outside_safe_slots_but_finality(spec, state):
# Initialization
store = get_genesis_forkchoice_store(spec, state)
time = 100
time = 0
spec.on_tick(store, time)
next_epoch(spec, state)
spec.on_tick(store, store.time + state.slot * spec.config.SECONDS_PER_SLOT)
state, store, last_signed_block = apply_next_epoch_with_attestations(spec, state, store)
state, store, last_signed_block = yield from apply_next_epoch_with_attestations(spec, state, store)
last_block_root = hash_tree_root(last_signed_block.message)
# Mock fictitious justified checkpoint in store
# NOTE: Mock fictitious justified checkpoint in store
store.justified_checkpoint = spec.Checkpoint(
epoch=spec.compute_epoch_at_slot(last_signed_block.message.slot),
root=spec.Root("0x4a55535449464945440000000000000000000000000000000000000000000000")
@ -290,7 +213,7 @@ def test_on_block_outside_safe_slots_but_finality(spec, state):
next_epoch(spec, state)
spec.on_tick(store, store.time + state.slot * spec.config.SECONDS_PER_SLOT)
# Create new higher justified checkpoint not in branch of store's justified checkpoint
# NOTE: Mock a new higher justified checkpoint not in branch of store's justified checkpoint
just_block = build_empty_block_for_next_slot(spec, state)
store.blocks[just_block.hash_tree_root()] = just_block
@ -298,7 +221,7 @@ def test_on_block_outside_safe_slots_but_finality(spec, state):
spec.on_tick(store, store.time + spec.SAFE_SLOTS_TO_UPDATE_JUSTIFIED * spec.config.SECONDS_PER_SLOT)
assert spec.get_current_slot(store) % spec.SLOTS_PER_EPOCH >= spec.SAFE_SLOTS_TO_UPDATE_JUSTIFIED
# Mock justified and finalized update in state
# NOTE: Mock justified and finalized update in state
just_fin_state = store.block_states[last_block_root]
new_justified = spec.Checkpoint(
epoch=spec.compute_epoch_at_slot(just_block.slot) + 1,
@ -317,6 +240,14 @@ def test_on_block_outside_safe_slots_but_finality(spec, state):
block = build_empty_block_for_next_slot(spec, just_fin_state)
signed_block = state_transition_and_sign_block(spec, deepcopy(just_fin_state), block)
# NOTE: Mock store so that the modified state could be accessed
parent_block = last_signed_block.message.copy()
parent_block.state_root = just_fin_state.hash_tree_root()
store.blocks[block.parent_root] = parent_block
store.block_states[block.parent_root] = just_fin_state.copy()
assert block.parent_root in store.blocks.keys()
assert block.parent_root in store.block_states.keys()
run_on_block(spec, store, signed_block)
assert store.finalized_checkpoint == new_finalized

View File

@ -4,7 +4,7 @@ from eth2spec.test.helpers.constants import PHASE0, ALTAIR, MERGE
if __name__ == "__main__":
phase_0_mods = {key: 'eth2spec.test.phase0.fork_choice.test_' + key for key in [
# 'get_head',
'get_head',
'on_block',
]}
# No additional Altair specific finality tests, yet.