uncloud/scheduler/tests/test_basics.py

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import unittest
import sys
import json
import multiprocessing
import time
from datetime import datetime
from os.path import dirname
BASE_DIR = dirname(dirname(__file__))
sys.path.insert(0, BASE_DIR)
from main import (
accumulated_specs,
remaining_resources,
VmPool,
dead_host_detection,
dead_host_mitigation,
main,
)
from config import etcd_client
class TestFunctions(unittest.TestCase):
@classmethod
def setUpClass(cls):
cls.client = etcd_client
cls.host_prefix = "/test/host"
cls.vm_prefix = "/test/vm"
# These deletion could also be in
# tearDown() but it is more appropriate here
# as it enable us to check the ETCD store
# even after test is run
cls.client.client.delete_prefix(cls.host_prefix)
cls.client.client.delete_prefix(cls.vm_prefix)
cls.create_hosts(cls)
cls.create_vms(cls)
cls.p = multiprocessing.Process(
target=main, args=[cls.vm_prefix, cls.host_prefix]
)
cls.p.start()
@classmethod
def tearDownClass(cls):
cls.p.terminate()
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.utcnow().isoformat(),
}
host3 = {
"cpu": 16,
"ram": 32,
"hdd": 256,
"sdd": 256,
"status": "ALIVE",
"last_heartbeat": datetime.utcnow().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)
def create_vms(self):
vm1 = json.dumps(
{
"owner": "meow",
"specs": {"cpu": 4, "ram": 8, "hdd": 100, "sdd": 256},
"hostname": "",
"status": "REQUESTED_NEW",
}
)
vm2 = json.dumps(
{
"owner": "meow",
"specs": {"cpu": 16, "ram": 64, "hdd": 512, "sdd": 0},
"hostname": "",
"status": "REQUESTED_NEW",
}
)
vm3 = json.dumps(
{
"owner": "meow",
"specs": {"cpu": 16, "ram": 32, "hdd": 128, "sdd": 0},
"hostname": "",
"status": "REQUESTED_NEW",
}
)
vm4 = json.dumps(
{
"owner": "meow",
"specs": {"cpu": 16, "ram": 64, "hdd": 512, "sdd": 0},
"hostname": "",
"status": "REQUESTED_NEW",
}
)
vm5 = json.dumps(
{
"owner": "meow",
"specs": {"cpu": 2, "ram": 2, "hdd": 10, "sdd": 0},
"hostname": "",
"status": "REQUESTED_NEW",
}
)
vm6 = json.dumps(
{
"owner": "meow",
"specs": {"cpu": 10, "ram": 22, "hdd": 146, "sdd": 0},
"hostname": "",
"status": "REQUESTED_NEW",
}
)
vm7 = json.dumps(
{
"owner": "meow",
"specs": {"cpu": 10, "ram": 22, "hdd": 146, "sdd": 0},
"hostname": "",
"status": "REQUESTED_NEW",
}
)
self.client.put(f"{self.vm_prefix}/1", vm1)
self.client.put(f"{self.vm_prefix}/2", vm2)
self.client.put(f"{self.vm_prefix}/3", vm3)
self.client.put(f"{self.vm_prefix}/4", vm4)
self.client.put(f"{self.vm_prefix}/5", vm5)
self.client.put(f"{self.vm_prefix}/6", vm6)
self.client.put(f"{self.vm_prefix}/7", vm7)
def test_accumulated_specs(self):
vms = [
{"ssd": 10, "cpu": 4, "ram": 8},
{"hdd": 10, "cpu": 4, "ram": 8},
{"cpu": 8, "ram": 32},
]
self.assertEqual(
accumulated_specs(vms), {"ssd": 10, "cpu": 16, "ram": 48, "hdd": 10}
)
def test_remaining_resources(self):
host_specs = {"ssd": 10, "cpu": 16, "ram": 48, "hdd": 10}
vms_specs = {"ssd": 10, "cpu": 32, "ram": 12, "hdd": 0}
resultant_specs = {"ssd": 0, "cpu": -16, "ram": 36, "hdd": 10}
self.assertEqual(remaining_resources(host_specs, vms_specs),
resultant_specs)
def test_vmpool(self):
self.p.join(1)
vm_pool = VmPool(self.client, self.vm_prefix)
# vm_pool by host
actual = vm_pool.by_host(vm_pool.vms, f"{self.host_prefix}/3")
ground_truth = [
(
f"{self.vm_prefix}/1",
{
"owner": "meow",
"specs": {"cpu": 4, "ram": 8, "hdd": 100, "sdd": 256},
"hostname": f"{self.host_prefix}/3",
"status": "SCHEDULED_DEPLOY",
},
)
]
self.assertEqual(actual[0], ground_truth[0])
# vm_pool by status
actual = vm_pool.by_status(vm_pool.vms, "REQUESTED_NEW")
ground_truth = [
(
f"{self.vm_prefix}/7",
{
"owner": "meow",
"specs": {"cpu": 10, "ram": 22, "hdd": 146, "sdd": 0},
"hostname": "",
"status": "REQUESTED_NEW",
},
)
]
self.assertEqual(actual[0], ground_truth[0])
# vm_pool by except status
actual = vm_pool.except_status(vm_pool.vms, "SCHEDULED_DEPLOY")
ground_truth = [
(
f"{self.vm_prefix}/7",
{
"owner": "meow",
"specs": {"cpu": 10, "ram": 22, "hdd": 146, "sdd": 0},
"hostname": "",
"status": "REQUESTED_NEW",
},
)
]
self.assertEqual(actual[0], ground_truth[0])
if __name__ == "__main__":
unittest.main()