def test_view_change_with_unaligned_prepare_certificates_on_half_nodes(
txnPoolNodeSet, looper, sdk_pool_handle, sdk_wallet_client, tconf):
"""
Perform view change with half nodes reaching lower last prepared certificate than others.
With current implementation of view change this can result with view change taking a lot of time.
"""
do_view_change_with_unaligned_prepare_certificates(txnPoolNodeSet[2:],
txnPoolNodeSet, looper, sdk_pool_handle, sdk_wallet_client)
ensure_all_nodes_have_same_data(looper, txnPoolNodeSet)
def test_view_change_with_unaligned_prepare_certificates_on_half_nodes(
txnPoolNodeSet, looper, sdk_pool_handle, sdk_wallet_client, tconf):
"""
Perform view change with half nodes reaching lower last prepared certificate than others.
With current implementation of view change this can result with view change taking a lot of time.
"""
do_view_change_with_unaligned_prepare_certificates(txnPoolNodeSet[2:],
txnPoolNodeSet, looper, sdk_pool_handle, sdk_wallet_client)
ensure_all_nodes_have_same_data(looper, txnPoolNodeSet)
def test_view_change_with_unaligned_prepare_certificates_on_one_node(
txnPoolNodeSet, looper, sdk_pool_handle, sdk_wallet_client, tconf):
"""
Perform view change with only one node reaching lower last prepared certificate than others.
"""
do_view_change_with_unaligned_prepare_certificates(txnPoolNodeSet[3:],
txnPoolNodeSet, looper,
sdk_pool_handle,
sdk_wallet_client)
ensure_all_nodes_have_same_data(looper, txnPoolNodeSet)
def test_view_change_with_unaligned_prepare_certificates_on_one_node(
txnPoolNodeSet, looper, sdk_pool_handle, sdk_wallet_client, tconf):
"""
Perform view change with only one node reaching lower last prepared certificate than others.
This is to ensure that despite setting MIN_TIMEOUT_CATCHUPS_DONE_DURING_VIEW_CHANGE high view change
can finish early in optimistic scenarios.
"""
do_view_change_with_unaligned_prepare_certificates(txnPoolNodeSet[3:],
txnPoolNodeSet, looper,
sdk_pool_handle,
sdk_wallet_client)
ensure_all_nodes_have_same_data(looper, txnPoolNodeSet)