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import datetime
import os
from django.conf import settings
from django.test import TestCase
from .. import models
class TestDataSource(TestCase):
def setUp(self):
self.rrd_file = "test.rrd"
try:
os.remove(os.path.join(settings.RRD_DB_PATH, self.rrd_file))
except FileNotFoundError:
pass
def tearDown(self):
try:
os.remove(os.path.join(settings.RRD_DB_PATH, self.rrd_file))
except FileNotFoundError:
pass
def test_create_with_defaults(self):
os.makedirs(settings.RRD_DB_PATH, exist_ok=True)
ds = models.DataSource.objects.create(
topic="test",
path=self.rrd_file,
)
self.assertTrue(ds.active)
self.assertIn("RRA:AVERAGE:0.5:1:2016", ds.rrd_config)
def test_read_empty_ds(self):
ds = models.DataSource.objects.create(
topic="test",
path=self.rrd_file,
)
with self.assertLogs() as cm:
self.assertEqual(ds.lastupdate, (None, None))
self.assertIn("WARNING:rrd.models:Failure", cm.output[0])
def test_update(self):
ds = models.DataSource.objects.create(
topic="test",
path=self.rrd_file,
)
now = datetime.datetime.now()
ts = int(now.timestamp())
ds.update(ts, 10)
last = ds.lastupdate
self.assertEqual(last[1], 10)
self.assertEqual(last[0].year, now.year)
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