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import etcd
import unittest
from .test_request import TestClientApiBase
try:
import mock
except ImportError:
from unittest import mock
class EtcdLeaderElectionTestCase(TestClientApiBase):
def setUp(self):
self.client = etcd.Client()
def _mock_api(self, status, d):
#We want to test at a lower level here.
resp = self._prepare_response(status, d)
self.client.http.request_encode_body = mock.create_autospec(
self.client.http.request_encode_body, return_value=resp
)
self.client.http.request = mock.create_autospec(
self.client.http.request, return_value=resp
)
def test_get_leader(self):
""" Can fetch a leader value """
self._mock_api(200, 'foo.example.com')
self.assertEquals(self.client.election.get('/mysql'), 'foo.example.com')
self._mock_api(200,'')
self.assertRaises(etcd.EtcdException, self.client.election.get, '/mysql')
def test_set_leader(self):
""" Can set a leader value """
self._mock_api(200, u'234')
#set w/o a TTL or a name
self.assertEquals(self.client.election.set('/mysql'), u'234')
self.assertEquals(self.client.election.set(
'/mysql',
name='foo.example.com',
ttl=60), u'234')
self._mock_api(500, 'leader name required')
self.assertRaises(etcd.EtcdException, self.client.election.set,'/mysql')
def test_del_leader(self):
""" Can remove a leader value """
self._mock_api(200,'')
self.assertTrue(self.client.election.delete('/mysql'))
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