uncloud/ucloud/scheduler/tests/test_dead_host_mechanism.py

83 lines
2.4 KiB
Python
Executable file

import sys
import unittest
from datetime import datetime
from os.path import dirname
BASE_DIR = dirname(dirname(__file__))
sys.path.insert(0, BASE_DIR)
from main import dead_host_detection, dead_host_mitigation, config
class TestDeadHostMechanism(unittest.TestCase):
def setUp(self):
self.client = config.etcd_client
self.host_prefix = "/test/host"
self.vm_prefix = "/test/vm"
self.client.client.delete_prefix(self.host_prefix)
self.client.client.delete_prefix(self.vm_prefix)
self.create_hosts()
def create_hosts(self):
host1 = {
"cpu": 32,
"ram": 128,
"hdd": 1024,
"sdd": 0,
"status": "ALIVE",
"last_heartbeat": datetime.utcnow().isoformat(),
}
host2 = {
"cpu": 16,
"ram": 64,
"hdd": 512,
"sdd": 0,
"status": "ALIVE",
"last_heartbeat": datetime(2011, 1, 1).isoformat(),
}
host3 = {"cpu": 16, "ram": 32, "hdd": 256, "sdd": 256}
host4 = {
"cpu": 16,
"ram": 32,
"hdd": 256,
"sdd": 256,
"status": "DEAD",
"last_heartbeat": datetime(2011, 1, 1).isoformat(),
}
with self.client.client.lock("lock"):
self.client.put(
f"{self.host_prefix}/1", host1, value_in_json=True
)
self.client.put(
f"{self.host_prefix}/2", host2, value_in_json=True
)
self.client.put(
f"{self.host_prefix}/3", host3, value_in_json=True
)
self.client.put(
f"{self.host_prefix}/4", host4, value_in_json=True
)
def test_dead_host_detection(self):
hosts = self.client.get_prefix(
self.host_prefix, value_in_json=True
)
deads = dead_host_detection(hosts)
self.assertEqual(deads, ["/test/host/2", "/test/host/3"])
return deads
def test_dead_host_mitigation(self):
deads = self.test_dead_host_detection()
dead_host_mitigation(self.client, deads)
hosts = self.client.get_prefix(
self.host_prefix, value_in_json=True
)
deads = dead_host_detection(hosts)
self.assertEqual(deads, [])
if __name__ == "__main__":
unittest.main()