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"""Tests for the CouchbaseBackend."""
from datetime import timedelta
from unittest.mock import MagicMock, Mock, patch, sentinel
import pytest
from celery import states
from celery.app import backends
from celery.backends import couchbase as module
from celery.backends.couchbase import CouchbaseBackend
from celery.exceptions import ImproperlyConfigured
try:
import couchbase
except ImportError:
couchbase = None
COUCHBASE_BUCKET = 'celery_bucket'
pytest.importorskip('couchbase')
class test_CouchbaseBackend:
def setup_method(self):
self.backend = CouchbaseBackend(app=self.app)
def test_init_no_couchbase(self):
prev, module.Cluster = module.Cluster, None
try:
with pytest.raises(ImproperlyConfigured):
CouchbaseBackend(app=self.app)
finally:
module.Cluster = prev
def test_init_no_settings(self):
self.app.conf.couchbase_backend_settings = []
with pytest.raises(ImproperlyConfigured):
CouchbaseBackend(app=self.app)
def test_init_settings_is_None(self):
self.app.conf.couchbase_backend_settings = None
CouchbaseBackend(app=self.app)
def test_get_connection_connection_exists(self):
with patch('couchbase.cluster.Cluster') as mock_Cluster:
self.backend._connection = sentinel._connection
connection = self.backend._get_connection()
assert sentinel._connection == connection
mock_Cluster.assert_not_called()
def test_get(self):
self.app.conf.couchbase_backend_settings = {}
x = CouchbaseBackend(app=self.app)
x._connection = Mock()
mocked_get = x._connection.get = Mock()
mocked_get.return_value.content = sentinel.retval
# should return None
assert x.get('1f3fab') == sentinel.retval
x._connection.get.assert_called_once_with('1f3fab')
def test_set_no_expires(self):
self.app.conf.couchbase_backend_settings = None
x = CouchbaseBackend(app=self.app)
x.expires = None
x._connection = MagicMock()
x._connection.set = MagicMock()
# should return None
assert x._set_with_state(sentinel.key, sentinel.value, states.SUCCESS) is None
def test_set_expires(self):
self.app.conf.couchbase_backend_settings = None
x = CouchbaseBackend(app=self.app, expires=30)
assert x.expires == 30
x._connection = MagicMock()
x._connection.set = MagicMock()
# should return None
assert x._set_with_state(sentinel.key, sentinel.value, states.SUCCESS) is None
def test_delete(self):
self.app.conf.couchbase_backend_settings = {}
x = CouchbaseBackend(app=self.app)
x._connection = Mock()
mocked_delete = x._connection.remove = Mock()
mocked_delete.return_value = None
# should return None
assert x.delete('1f3fab') is None
x._connection.remove.assert_called_once_with('1f3fab')
def test_config_params(self):
self.app.conf.couchbase_backend_settings = {
'bucket': 'mycoolbucket',
'host': ['here.host.com', 'there.host.com'],
'username': 'johndoe',
'password': 'mysecret',
'port': '1234',
}
x = CouchbaseBackend(app=self.app)
assert x.bucket == 'mycoolbucket'
assert x.host == ['here.host.com', 'there.host.com']
assert x.username == 'johndoe'
assert x.password == 'mysecret'
assert x.port == 1234
def test_backend_by_url(self, url='couchbase://myhost/mycoolbucket'):
from celery.backends.couchbase import CouchbaseBackend
backend, url_ = backends.by_url(url, self.app.loader)
assert backend is CouchbaseBackend
assert url_ == url
def test_backend_params_by_url(self):
url = 'couchbase://johndoe:mysecret@myhost:123/mycoolbucket'
with self.Celery(backend=url) as app:
x = app.backend
assert x.bucket == 'mycoolbucket'
assert x.host == 'myhost'
assert x.username == 'johndoe'
assert x.password == 'mysecret'
assert x.port == 123
def test_expires_defaults_to_config(self):
self.app.conf.result_expires = 10
b = CouchbaseBackend(expires=None, app=self.app)
assert b.expires == 10
def test_expires_is_int(self):
b = CouchbaseBackend(expires=48, app=self.app)
assert b.expires == 48
def test_expires_is_None(self):
b = CouchbaseBackend(expires=None, app=self.app)
assert b.expires == self.app.conf.result_expires.total_seconds()
def test_expires_is_timedelta(self):
b = CouchbaseBackend(expires=timedelta(minutes=1), app=self.app)
assert b.expires == 60
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