def test_do_nothing_on_view_change_started(internal_bus, checkpoint_service):
checkpoint_service._data.checkpoints.update(create_checkpoints(view_no=0))
checkpoint_service._data.stable_checkpoint = 200
checkpoint_service._data.low_watermark = 200
checkpoint_service._data.high_watermark = checkpoint_service._data.low_watermark + 300
old_data = copy_shared_data(checkpoint_service._data)
internal_bus.send(ViewChangeStarted(view_no=4))
new_data = copy_shared_data(checkpoint_service._data)
assert old_data == new_data
def test_do_nothing_on_new_view_checkpoint_applied(internal_bus, checkpoint_service):
checkpoint_service._data.checkpoints.clear()
checkpoint_service._data.checkpoints.update(create_checkpoints(view_no=0))
checkpoint_service._data.stable_checkpoint = 100
checkpoint_service._data.low_watermark = 100
checkpoint_service._data.high_watermark = checkpoint_service._data.low_watermark + 300
old_data = copy_shared_data(checkpoint_service._data)
initial_view_no = 3
new_view = create_new_view(initial_view_no=initial_view_no, stable_cp=200)
internal_bus.send(NewViewCheckpointsApplied(view_no=initial_view_no + 1,
view_changes=new_view.viewChanges,
checkpoint=new_view.checkpoint,
batches=new_view.batches))
new_data = copy_shared_data(checkpoint_service._data)
assert old_data == new_data