92 lines
3.4 KiB
Python
92 lines
3.4 KiB
Python
from ipaddress import IPv4Address
|
|
|
|
import pytest
|
|
|
|
from primaite.simulator.network.container import Network
|
|
from primaite.simulator.network.hardware.nodes.computer import Computer
|
|
from primaite.simulator.network.hardware.nodes.server import Server
|
|
from primaite.simulator.network.protocols.ntp import NTPPacket, NTPRequest
|
|
from primaite.simulator.system.services.ntp.ntp_client import NTPClient
|
|
from primaite.simulator.system.services.ntp.ntp_server import NTPServer
|
|
from primaite.simulator.system.services.service import ServiceOperatingState
|
|
|
|
# Create simple network for testing
|
|
|
|
|
|
def create_ntp_network() -> Network:
|
|
"""
|
|
+------------+ +------------+
|
|
| ntp | | ntp |
|
|
| client_1 +------------+ server_1 |
|
|
| | | |
|
|
+------------+ +------------+
|
|
|
|
"""
|
|
|
|
network = Network()
|
|
ntp_server = Server(
|
|
hostname="ntp_server", ip_address="192.168.1.2", subnet_mask="255.255.255.0", default_gateway="192.168.1.1"
|
|
)
|
|
ntp_server.power_on()
|
|
ntp_server.software_manager.install(NTPServer)
|
|
|
|
ntp_client = Computer(
|
|
hostname="ntp_client", ip_address="192.168.1.3", subnet_mask="255.255.255.0", default_gateway="192.168.1.1"
|
|
)
|
|
ntp_client.power_on()
|
|
ntp_client.software_manager.install(NTPClient)
|
|
network.connect(endpoint_b=ntp_server.ethernet_port[1], endpoint_a=ntp_client.ethernet_port[1])
|
|
|
|
return network
|
|
|
|
|
|
# Define one node to be an NTP server and another node to be a NTP Client.
|
|
|
|
|
|
def test_ntp_client_server():
|
|
network = create_ntp_network()
|
|
server: Server = network.get_node_by_hostname("ntp_server")
|
|
client: Computer = network.get_node_by_hostname("ntp_client")
|
|
|
|
ntp_server: NTPServer = server.software_manager.software["NTPServer"]
|
|
ntp_client: NTPClient = client.software_manager.software["NTPClient"]
|
|
|
|
assert ntp_server.operating_state == ServiceOperatingState.RUNNING
|
|
assert ntp_client.operating_state == ServiceOperatingState.RUNNING
|
|
assert ntp_client.time is None
|
|
|
|
ntp_request = NTPRequest(ntp_client="192.168.1.3")
|
|
ntp_packet = NTPPacket(ntp_request=ntp_request)
|
|
ntp_client.send(payload=ntp_packet)
|
|
assert ntp_server.receive(payload=ntp_packet) is True
|
|
assert ntp_client.receive(payload=ntp_packet) is True
|
|
assert ntp_client.time is not None
|
|
assert ntp_client.apply_timestep(1) is True
|
|
|
|
|
|
# Test ntp client behaviour when ntp server is unavailable.
|
|
@pytest.mark.skip(reason="NTP needs to know if underly node is RUNNING")
|
|
def test_ntp_server_failure():
|
|
network = create_ntp_network()
|
|
server: Server = network.get_node_by_hostname("ntp_server")
|
|
client: Computer = network.get_node_by_hostname("ntp_client")
|
|
|
|
ntp_server: NTPServer = server.software_manager.software["NTPServer"]
|
|
ntp_client: NTPClient = client.software_manager.software["NTPClient"]
|
|
|
|
assert ntp_client.operating_state == ServiceOperatingState.RUNNING
|
|
|
|
# Turn off ntp server.
|
|
ntp_server.stop()
|
|
assert ntp_server.operating_state == ServiceOperatingState.STOPPED
|
|
# And request a time update.
|
|
ntp_request = NTPRequest(ntp_client="192.168.1.3")
|
|
ntp_packet = NTPPacket(ntp_request=ntp_request)
|
|
ntp_client.send(payload=ntp_packet)
|
|
assert ntp_server.receive(payload=ntp_packet) is False
|
|
assert ntp_client.receive(payload=ntp_packet) is False
|
|
|
|
# Restart ntp server.
|
|
ntp_server.start()
|
|
assert ntp_server.operating_state == ServiceOperatingState.RUNNING
|