eth2.0-specs/tests/phase0/block_processing/test_process_block_header.py

61 lines
1.6 KiB
Python

from copy import deepcopy
import pytest
from build.phase0.spec import (
get_beacon_proposer_index,
cache_state,
advance_slot,
process_block_header,
)
from tests.phase0.helpers import (
build_empty_block_for_next_slot,
)
# mark entire file as 'header'
pytestmark = pytest.mark.header
def prepare_state_for_header_processing(state):
cache_state(state)
advance_slot(state)
def run_block_header_processing(state, block, valid=True):
"""
Run ``process_block_header`` returning the pre and post state.
If ``valid == False``, run expecting ``AssertionError``
"""
prepare_state_for_header_processing(state)
post_state = deepcopy(state)
if not valid:
with pytest.raises(AssertionError):
process_block_header(post_state, block)
return state, None
process_block_header(post_state, block)
return state, post_state
def test_success(state):
block = build_empty_block_for_next_slot(state)
pre_state, post_state = run_block_header_processing(state, block)
return state, block, post_state
def test_invalid_slot(state):
block = build_empty_block_for_next_slot(state)
block.slot = state.slot + 2 # invalid slot
pre_state, post_state = run_block_header_processing(state, block, valid=False)
return pre_state, block, None
def test_invalid_previous_block_root(state):
block = build_empty_block_for_next_slot(state)
block.previous_block_root = b'\12'*32 # invalid prev root
pre_state, post_state = run_block_header_processing(state, block, valid=False)
return pre_state, block, None