def prepare_view_change(self, proposed_view_no: int):
if not self.is_preparing:
self._set_req_handlers()
vcs_msg = ViewChangeStartMessage(proposed_view_no)
nodeInBox = self.view_changer.node.nodeInBox
nodeInBox.append((vcs_msg, self.view_changer.node.name))
self.is_preparing = True
def test_add_vc_continued_msg_on_view_change_started(pre_vc_strategy, looper):
pre_vc_strategy.view_changer.view_no = 1
looper.run(pre_vc_strategy.on_view_change_started(pre_vc_strategy.node,
ViewChangeStartMessage(2),
"some_node"))
assert len(pre_vc_strategy.node.master_replica.inBox) == 1
m = pre_vc_strategy.node.master_replica.inBox.popleft()
assert isinstance(m, ViewChangeContinueMessage)
def test_not_continue_vc_with_proposed_view_no_less_then_current(
pre_vc_strategy, looper):
pre_vc_strategy.view_changer.view_no = 2
looper.run(
pre_vc_strategy.on_view_change_started(pre_vc_strategy.node,
ViewChangeStartMessage(1),
"some_node"))
assert len(pre_vc_strategy.replica.inBox) == 0
def prepare_view_change(self, proposed_view_no: int):
if not self.is_preparing:
logger.info(
"VCStartMsgStrategy: Starting prepare_view_change process")
self._set_req_handlers()
vcs_msg = ViewChangeStartMessage(proposed_view_no)
nodeInBox = self.view_changer.node.nodeInBox
nodeInBox.append((vcs_msg, self.view_changer.node.name))
self.is_preparing = True
def test_stash_not_3PC_msgs(pre_vc_strategy, looper):
node = pre_vc_strategy.node
pre_vc_strategy.view_changer.view_no = 1
m1 = (InstanceChange(3, 25), "Beta")
m2 = (InstanceChange(3, 25), "Gamma")
assert len(pre_vc_strategy.stashedNodeInBox) == 0
node.nodeInBox.append(m1)
node.nodeInBox.append(m2)
looper.run(pre_vc_strategy.on_view_change_started(pre_vc_strategy.node,
ViewChangeStartMessage(2),
"some_node"))
assert len(pre_vc_strategy.stashedNodeInBox) > 0
"""In the same order as from nodeInBox queue"""
assert pre_vc_strategy.stashedNodeInBox.popleft() == m1
assert pre_vc_strategy.stashedNodeInBox.popleft() == m2