def test_end_block_return_validator_updates(a, b, init_chain_request): app = App(a, b) app.init_chain(init_chain_request) begin_block = types.RequestBeginBlock() app.begin_block(begin_block) # generate a block containing a concluded validator election validators = generate_validators([1] * 4) b.store_validator_set(1, [v['storage'] for v in validators]) new_validator = generate_validators([1])[0] public_key = validators[0]['public_key'] private_key = validators[0]['private_key'] voter_keys = [v['private_key'] for v in validators] election, votes = generate_election(b, ValidatorElection, public_key, private_key, new_validator['election'], voter_keys) b.store_block(Block(height=1, transactions=[election.id], app_hash='')._asdict()) b.store_bulk_transactions([election]) Election.process_block(b, 1, [election]) app.block_transactions = votes resp = app.end_block(types.RequestEndBlock(height=2)) assert resp.validator_updates[0].power == new_validator['election']['power'] expected = bytes.fromhex(new_validator['election']['public_key']['value']) assert expected == resp.validator_updates[0].pub_key.data
def test_deliver_tx__double_spend_fails(a, b, init_chain_request): from bigchaindb import App from bigchaindb.models import Transaction from bigchaindb.common.crypto import generate_key_pair alice = generate_key_pair() bob = generate_key_pair() tx = Transaction.create([alice.public_key], [([bob.public_key], 1)])\ .sign([alice.private_key]) app = App(a, b) app.init_chain(init_chain_request) begin_block = types.RequestBeginBlock() app.begin_block(begin_block) result = app.deliver_tx(encode_tx_to_bytes(tx)) assert result.code == CodeTypeOk app.end_block(types.RequestEndBlock(height=99)) app.commit() assert b.get_transaction(tx.id).id == tx.id result = app.deliver_tx(encode_tx_to_bytes(tx)) assert result.code == CodeTypeError
def test_deliver_tx__valid_create_updates_db_and_emits_event(a, b, init_chain_request): import multiprocessing as mp from bigchaindb import App from bigchaindb.models import Transaction from bigchaindb.common.crypto import generate_key_pair alice = generate_key_pair() bob = generate_key_pair() events = mp.Queue() tx = Transaction.create([alice.public_key], [([bob.public_key], 1)])\ .sign([alice.private_key]) app = App(a, b, events) app.init_chain(init_chain_request) begin_block = types.RequestBeginBlock() app.begin_block(begin_block) result = app.deliver_tx(encode_tx_to_bytes(tx)) assert result.code == CodeTypeOk app.end_block(types.RequestEndBlock(height=99)) app.commit() assert b.get_transaction(tx.id).id == tx.id block_event = events.get() assert block_event.data['transactions'] == [tx]
def test_deliver_transfer_tx__double_spend_fails(a, b, init_chain_request): from bigchaindb import App from bigchaindb.models import Transaction from bigchaindb.common.crypto import generate_key_pair app = App(a, b) app.init_chain(init_chain_request) begin_block = types.RequestBeginBlock() app.begin_block(begin_block) alice = generate_key_pair() bob = generate_key_pair() carly = generate_key_pair() asset = { 'msg': 'live long and prosper' } tx = Transaction.create([alice.public_key], [([alice.public_key], 1)], asset=asset)\ .sign([alice.private_key]) result = app.deliver_tx(encode_tx_to_bytes(tx)) assert result.code == CodeTypeOk tx_transfer = Transaction.transfer(tx.to_inputs(), [([bob.public_key], 1)], asset_id=tx.id)\ .sign([alice.private_key]) result = app.deliver_tx(encode_tx_to_bytes(tx_transfer)) assert result.code == CodeTypeOk double_spend = Transaction.transfer(tx.to_inputs(), [([carly.public_key], 1)], asset_id=tx.id)\ .sign([alice.private_key]) result = app.deliver_tx(encode_tx_to_bytes(double_spend)) assert result.code == CodeTypeError
def test_store_pre_commit_state_in_end_block(a, b, alice, init_chain_request): from bigchaindb import App from bigchaindb.backend import query from bigchaindb.models import Transaction tx = Transaction.create([alice.public_key], [([alice.public_key], 1)], asset={'msg': 'live long and prosper'})\ .sign([alice.private_key]) app = App(a, b) app.init_chain(init_chain_request) begin_block = types.RequestBeginBlock() app.begin_block(begin_block) app.deliver_tx(encode_tx_to_bytes(tx)) app.end_block(types.RequestEndBlock(height=99)) resp = query.get_pre_commit_state(b.connection) assert resp['height'] == 99 assert resp['transactions'] == [tx.id] app.begin_block(begin_block) app.deliver_tx(encode_tx_to_bytes(tx)) app.end_block(types.RequestEndBlock(height=100)) resp = query.get_pre_commit_state(b.connection) assert resp['height'] == 100 assert resp['transactions'] == [tx.id] # simulate a chain migration and assert the height is shifted b.store_abci_chain(100, 'new-chain') app = App(a, b) app.begin_block(begin_block) app.deliver_tx(encode_tx_to_bytes(tx)) app.end_block(types.RequestEndBlock(height=1)) resp = query.get_pre_commit_state(b.connection) assert resp['height'] == 101 assert resp['transactions'] == [tx.id]
def test_begin_aborts_if_chain_is_not_synced(a, b): b.store_abci_chain(0, 'chain-XYZ', False) with pytest.raises(SystemExit): App(a, b).info(types.RequestBeginBlock())