mirror of
https://github.com/outbackdingo/patroni.git
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Alexander Kukushkin
8dd99170bf
update_leader can throw EtcdError exception unused HealthiestMemberError exception is removed
117 lines
5.3 KiB
Python
117 lines
5.3 KiB
Python
import unittest
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import requests
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import time
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import json
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from helpers.etcd import Cluster, Etcd
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from helpers.errors import EtcdError, CurrentLeaderError
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class MockResponse:
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def __init__(self):
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self.status_code = 200
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self.content = '{}'
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def json(self):
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return json.loads(self.content)
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class MockPostgresql:
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name = ''
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def last_operation(self):
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return 0
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def requests_get(url, **kwargs):
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if url.startswith('http://local'):
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raise requests.exceptions.RequestException()
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response = MockResponse()
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if url.startswith('http://remote'):
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response.content = '{"action":"get","node":{"key":"/service/batman5","dir":true,"nodes":[{"key":"/service/batman5/initialize","value":"postgresql0","modifiedIndex":1582,"createdIndex":1582},{"key":"/service/batman5/leader","value":"postgresql1","expiration":"2015-05-15T09:11:00.037397538Z","ttl":21,"modifiedIndex":20728,"createdIndex":20434},{"key":"/service/batman5/optime","dir":true,"nodes":[{"key":"/service/batman5/optime/leader","value":"2164261704","modifiedIndex":20729,"createdIndex":20729}],"modifiedIndex":20437,"createdIndex":20437},{"key":"/service/batman5/members","dir":true,"nodes":[{"key":"/service/batman5/members/postgresql1","value":"postgres://replicator:[email protected]:5434/postgres","expiration":"2015-05-15T09:10:59.949384522Z","ttl":21,"modifiedIndex":20727,"createdIndex":20727},{"key":"/service/batman5/members/postgresql0","value":"postgres://replicator:[email protected]:5433/postgres","expiration":"2015-05-15T09:11:09.611860899Z","ttl":30,"modifiedIndex":20730,"createdIndex":20730}],"modifiedIndex":1581,"createdIndex":1581}],"modifiedIndex":1581,"createdIndex":1581}}'
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elif url.startswith('http://other'):
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response.status_code = 404
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elif url.startswith('http://noleader'):
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response.content = '{"action":"get","node":{"key":"/service/batman5","dir":true,"nodes":[{"key":"/service/batman5/initialize","value":"postgresql0","modifiedIndex":1582,"createdIndex":1582},{"key":"/service/batman5/leader","value":"postgresql1","expiration":"2015-05-15T09:11:00.037397538Z","ttl":21,"modifiedIndex":20728,"createdIndex":20434},{"key":"/service/batman5/optime","dir":true,"nodes":[{"key":"/service/batman5/optime/leader","value":"2164261704","modifiedIndex":20729,"createdIndex":20729}],"modifiedIndex":20437,"createdIndex":20437},{"key":"/service/batman5/members","dir":true,"nodes":[{"key":"/service/batman5/members/postgresql0","value":"postgres://replicator:[email protected]:5433/postgres","expiration":"2015-05-15T09:11:09.611860899Z","ttl":30,"modifiedIndex":20730,"createdIndex":20730}],"modifiedIndex":1581,"createdIndex":1581}],"modifiedIndex":1581,"createdIndex":1581}}'
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return response
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def requests_put(url, **kwargs):
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if url.startswith('http://local') or '/optime/leader' in url:
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raise requests.exceptions.RequestException()
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response = MockResponse()
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response.status_code = 201
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if url.startswith('http://other'):
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response.status_code = 404
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return response
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def requests_delete(url):
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if url.startswith('http://local'):
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raise requests.exceptions.RequestException()
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response = MockResponse()
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response.status_code = 204
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return response
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def time_sleep(_):
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pass
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class TestEtcd(unittest.TestCase):
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def __init__(self, method_name='runTest'):
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self.setUp = self.set_up
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super(TestEtcd, self).__init__(method_name)
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def set_up(self):
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requests.get = requests_get
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requests.put = requests_put
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requests.delete = requests_delete
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time.sleep = time_sleep
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self.etcd = Etcd({'ttl': 30, 'host': 'localhost', 'scope': 'test'})
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def test_get_client_path(self):
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self.assertRaises(Exception, self.etcd.get_client_path, '', 2)
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def test_put_client_path(self):
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self.assertRaises(EtcdError, self.etcd.put_client_path, '')
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def test_delete_client_path(self):
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self.assertFalse(self.etcd.delete_client_path(''))
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def test_get_cluster(self):
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self.assertRaises(EtcdError, self.etcd.get_cluster)
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self.etcd.base_client_url = self.etcd.base_client_url.replace('local', 'remote')
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cluster = self.etcd.get_cluster()
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self.assertIsInstance(cluster, Cluster)
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self.etcd.base_client_url = self.etcd.base_client_url.replace('remote', 'other')
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self.etcd.get_cluster()
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self.etcd.base_client_url = self.etcd.base_client_url.replace('other', 'noleader')
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self.etcd.get_cluster()
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def test_current_leader(self):
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self.assertRaises(CurrentLeaderError, self.etcd.current_leader)
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def test_touch_member(self):
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self.assertFalse(self.etcd.touch_member('', ''))
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def test_take_leader(self):
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self.assertFalse(self.etcd.take_leader(''))
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def test_attempt_to_acquire_leader(self):
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self.assertFalse(self.etcd.attempt_to_acquire_leader(''))
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def test_update_leader(self):
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self.etcd.base_client_url = self.etcd.base_client_url.replace('local', 'remote')
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self.assertTrue(self.etcd.update_leader(MockPostgresql()))
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self.etcd.base_client_url = self.etcd.base_client_url.replace('remote', 'other')
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self.assertFalse(self.etcd.update_leader(MockPostgresql()))
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def test_race(self):
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self.assertFalse(self.etcd.race('', ''))
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def test_delete_member(self):
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self.assertFalse(self.etcd.delete_member(''))
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