def test_all_valid(spec, state):
test_steps = []
# Initialization
state = build_state_with_incomplete_transition(spec, state)
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
pow_block_parent = prepare_random_pow_block(spec)
pow_block_parent.total_difficulty = spec.config.TERMINAL_TOTAL_DIFFICULTY - uint256(
1)
pow_block = prepare_random_pow_block(spec)
pow_block.parent_hash = pow_block_parent.block_hash
pow_block.total_difficulty = spec.config.TERMINAL_TOTAL_DIFFICULTY
pow_blocks = [pow_block, pow_block_parent]
for pb in pow_blocks:
yield from add_pow_block(spec, store, pb, test_steps)
def run_func():
block = build_empty_block_for_next_slot(spec, state)
block.body.execution_payload.parent_hash = pow_block.block_hash
signed_block = state_transition_and_sign_block(spec, state, block)
yield from tick_and_add_block(spec,
store,
signed_block,
test_steps,
merge_block=True)
# valid
assert spec.get_head(store) == signed_block.message.hash_tree_root()
yield from with_pow_block_patch(spec, pow_blocks, run_func)
yield 'steps', test_steps
def test_is_valid_terminal_pow_block_fail_just_after_terminal(spec, state):
parent_block = prepare_random_pow_block(spec)
parent_block.total_difficulty = spec.config.TERMINAL_TOTAL_DIFFICULTY
block = prepare_random_pow_block(spec)
block.parent_hash = parent_block.block_hash
block.total_difficulty = spec.config.TERMINAL_TOTAL_DIFFICULTY + uint256(1)
assert not spec.is_valid_terminal_pow_block(block, parent_block)
def test_is_valid_terminal_pow_block_success_valid(spec, state):
parent_block = prepare_random_pow_block(spec)
parent_block.total_difficulty = spec.config.TERMINAL_TOTAL_DIFFICULTY - uint256(
1)
block = prepare_random_pow_block(spec)
block.parent_hash = parent_block.block_hash
block.total_difficulty = spec.config.TERMINAL_TOTAL_DIFFICULTY
assert spec.is_valid_terminal_pow_block(block, parent_block)