def network_fault(chain_file, num_steps, delay_step, interval):
chain = Chain.deserialize(json.loads(chain_file.read()))
result = Chainmanager.get_network_fault(chain, num_steps, delay_step,
interval)
print(json.dumps(result))
def test_network_fault(requests_mock, chain, mock_ethermint_requests,
mocksubprocess):
# FIXME: test-all smoke test for now, consider splitting into separate logical assertions
ip = chain.instances[0].public_ip_address
t = datetime.now(tz=pytz.UTC)
mock_ethermint_requests(1, t, "hash", [ip])
mock_ethermint_requests(
10, t + timedelta(seconds=10), "hash2",
[inst.public_ip_address for inst in chain.instances])
requests_mock.add(
requests_mock.GET,
re.compile(r'http://' + ip +
r':46657/blockchain\?minHeight=1\&maxHeight=10'),
json={
"result": [
0, {
'block_metas':
10 * [{
'header': {
'app_hash': "",
'height': "",
'time': t.isoformat()
}
}]
}
]
},
status=200)
# fake time when a remote machine should report having run it's tc command
delay_step_time1 = (t + timedelta(seconds=5)).isoformat()
delay_step_time2 = (t + timedelta(seconds=7)).isoformat()
delay_step_time3 = (t + timedelta(seconds=7)).isoformat()
def _side_effect(*args, **kwargs):
if "get_datetime.sh" in args[0]:
assert ip in args[0] # only instance 0 is queried for date
return t.isoformat()
elif "run_tcs.sh" in args[0]:
assert "run_tcs.sh 2 123 1 eth0 {}".format((t + timedelta(
seconds=(NETWORK_FAULT_PREPARATION_TIME_PER_INSTANCE *
len(chain.instances)))).isoformat()) in args[0]
assert any([
inst.public_ip_address in args[0] for inst in chain.instances
])
return "{}\n{}\n{}".format(delay_step_time1, delay_step_time2,
delay_step_time3)
assert False
mocksubprocess.side_effect = _side_effect
result = Chainmanager.get_network_fault(chain, 2, 123, 1)
check_history(result["blocktimes"], 9, 0, "", t)
assert len(result["delay_steps"]) == 3
assert result["delay_steps"] == [(123, delay_step_time1),
(246, delay_step_time2),
(0, delay_step_time3)]