def test_get_subtree_1_level(self):
"""
Test get_subtree() for a read with tree 1 level deep.
"""
response = {
"node": {
'key': "/test",
'value': "hello",
'expiration': None,
'ttl': None,
'modifiedIndex': 5,
'createdIndex': 1,
'newKey': False,
'dir': False,
}
}
result = etcd.EtcdResult(**response)
self.assertEqual(result.key, response["node"]["key"])
self.assertEqual(result.value, response["node"]["value"])
# Get subtree returns itself, whether or not leaves_only
subtree = list(result.get_subtree(leaves_only=True))
self.assertListEqual([result], subtree)
subtree = list(result.get_subtree(leaves_only=False))
self.assertListEqual([result], subtree)
def etcd_watch(self, key, index=None, timeout=None, recursive=None):
if timeout == 2.0:
raise etcd.EtcdWatchTimedOut
elif timeout == 5.0:
return etcd.EtcdResult('delete', {})
elif timeout == 10.0:
raise etcd.EtcdException
def test_acquired_no_timeout(self):
self.locker._sequence = 4
returns = [('/_locks/test_lock/4', None, 1),
('/_locks/test_lock/1',
etcd.EtcdResult(node={
"key": '/_locks/test_lock/4',
"modifiedIndex": 1
}), 1)]
def side_effect():
return returns.pop()
d = {
u'action': u'get',
u'node': {
u'modifiedIndex': 190,
u'key': u'/_locks/test_lock/4',
u'value': self.locker.uuid
}
}
self._mock_api(200, d)
self.locker._get_locker = mock.create_autospec(self.locker._get_locker,
side_effect=side_effect)
self.assertTrue(self.locker._acquired())
def etcd_read(self, key, **kwargs):
if key == '/service/noleader/':
raise DCSError('noleader')
elif key == '/service/nocluster/':
raise etcd.EtcdKeyNotFound
response = {"action": "get", "node": {"key": "/service/batman5", "dir": True, "nodes": [
{"key": "/service/batman5/failover", "value": "",
"modifiedIndex": 1582, "createdIndex": 1582},
{"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://*****:*****@127.0.0.1:5434/postgres" +
"?application_name=http://127.0.0.1:8009/patroni",
"expiration": "2015-05-15T09:10:59.949384522Z", "ttl": 21,
"modifiedIndex": 20727, "createdIndex": 20727},
{"key": "/service/batman5/members/postgresql0",
"value": "postgres://*****:*****@127.0.0.1:5433/postgres" +
"?application_name=http://127.0.0.1:8008/patroni",
"expiration": "2015-05-15T09:11:09.611860899Z", "ttl": 30,
"modifiedIndex": 20730, "createdIndex": 20730}],
"modifiedIndex": 1581, "createdIndex": 1581}], "modifiedIndex": 1581, "createdIndex": 1581}}
return etcd.EtcdResult(**response)
def test_index_watch(self):
""" Can watch values from index """
client = etcd.Client()
client.api_execute = mock.Mock(
return_value=FakeHTTPResponse(200,
'{"action":"SET",'
'"node": {'
'"key":"/testkey",'
'"value":"test",'
'"newKey":true,'
'"expiration":"2013-09-14T01:35:07.623681365+02:00",'
'"ttl":19,'
'"modifiedIndex":180}}')
)
result = client.watch('/testkey', index=180)
self.assertEquals(
etcd.EtcdResult(
**{u'action': u'SET',
u'node': {
u'expiration': u'2013-09-14T01:35:07.623681365+02:00',
u'modifiedIndex': 180,
u'key': u'/testkey',
u'newKey': True,
u'ttl': 19,
u'value': u'test'}
}), result)
def test_set(self):
""" Can set a value """
client = etcd.Client()
client.api_execute = mock.Mock(
return_value=FakeHTTPResponse(201,
'{"action":"SET",'
'"node": {'
'"key":"/testkey",'
'"value":"test",'
'"newKey":true,'
'"expiration":"2013-09-14T00:56:59.316195568+02:00",'
'"ttl":19,"modifiedIndex":183}}')
)
result = client.set('/testkey', 'test', ttl=19)
self.assertEquals(
etcd.EtcdResult(
**{u'action': u'SET',
'node': {
u'expiration': u'2013-09-14T00:56:59.316195568+02:00',
u'modifiedIndex': 183,
u'key': u'/testkey',
u'newKey': True,
u'ttl': 19,
u'value': u'test'}}), result)
def test_get_dir(self):
"""Can get values in dirs"""
d = {
u'action': u'get',
u'node': {
u'modifiedIndex':
190,
u'key':
u'/testkey',
u'dir':
True,
u'nodes': [{
u'key': u'/testDir/testKey',
u'modifiedIndex': 150,
u'value': 'test'
}, {
u'key': u'/testDir/testKey2',
u'modifiedIndex': 190,
u'value': 'test2'
}]
}
}
self._mock_api(200, d)
res = self.client.read('/testDir', recursive=True)
self.assertEquals(res, etcd.EtcdResult(**d))
def test_test_and_set(self):
""" Can test and set a value """
client = etcd.Client()
client.api_execute = mock.Mock(
return_value=FakeHTTPResponse(200,
'{"action":"SET",'
'"node": {'
'"key":"/testkey",'
'"prevValue":"test",'
'"value":"newvalue",'
'"expiration":"2013-09-14T02:09:44.24390976+02:00",'
'"ttl":49,"modifiedIndex":203}}')
)
result = client.test_and_set('/testkey', 'newvalue', 'test', ttl=19)
self.assertEquals(
etcd.EtcdResult(
**{u'action': u'SET',
u'node': {
u'expiration': u'2013-09-14T02:09:44.24390976+02:00',
u'modifiedIndex': 203,
u'key': u'/testkey',
u'prevValue': u'test',
u'ttl': 49,
u'value': u'newvalue'}
}), result)
def test_event_index_cleared(self):
self.locker._sequence = 4
returns = [('/_locks/test_lock/4', None, 1),
('/_locks/test_lock/1',
etcd.EtcdResult(node={
"key": '/_locks/test_lock/4',
"modifiedIndex": 1
}), 1)]
def side_effect():
return returns.pop()
d = {
u'action': u'get',
u'node': {
u'modifiedIndex': 190,
u'key': u'/_locks/test_lock/4',
u'value': self.locker.uuid
}
}
self._mock_api(200, d)
self.locker._get_locker = mock.create_autospec(self.locker._get_locker,
side_effect=side_effect)
# Raise the event index cleared exception and test that we
# can recover from it.
self._mock_exception(etcd.EtcdEventIndexCleared, self.locker.lock_key)
self.assertTrue(self.locker._acquired())
def stub_read(self, k):
res = {}
res['key'] = k
if k in self.kdb.keys():
res['value'] = self.kdb[k]
r = etcd.EtcdResult(None, res)
return (r)
def etcd_watch(key, index=None, timeout=None, recursive=None):
if timeout == 2.0:
raise urllib3.exceptions.TimeoutError
elif timeout == 5.0:
return etcd.EtcdResult('delete', {})
elif timeout == 10.0:
raise etcd.EtcdException
elif index == 20729:
return etcd.EtcdResult('set', {
'value': 'postgresql1',
'modifiedIndex': index + 1
})
elif index == 20731:
return etcd.EtcdResult('set', {
'value': 'postgresql2',
'modifiedIndex': index + 1
})
def etcd_watch(self, key, index=None, timeout=None, recursive=None):
if timeout == 2.0:
raise etcd.EtcdWatchTimedOut
elif timeout == 5.0:
return etcd.EtcdResult('compareAndSwap', {})
elif 5 < timeout <= 10.0:
raise etcd.EtcdException
elif timeout == 20.0:
raise etcd.EtcdEventIndexCleared
def children(self):
if self.root is None or not hasattr(self.root, "_children"):
return []
else:
return [(child["key"].split("/")[-1],
EtcdDocument(None,
None,
root=etcd.EtcdResult(None, node=child)))
for child in self.root._children]
def check_watch(self, result):
assert etcd.EtcdResult(
**{u'action': u'SET',
u'node': {
u'expiration': u'2013-09-14T01:35:07.623681365+02:00',
u'modifiedIndex': 180,
u'key': u'/testkey',
u'newKey': True,
u'ttl': 19,
u'value': u'test'}
}) == result
def get_etcd_read_list(path, *args):
"""Return EtcdResult object for read list"""
values = []
for val in args:
node = {u'key': None, u'value': val}
values.append(node)
data = _get_etcd_data(path)
data['node']['dir'] = 'true'
data['node']['nodes'] = values
return etcd.EtcdResult(**data)
def _result_from_response(self, response):
""" Creates an EtcdResult from json dictionary """
try:
res = json.loads(response.data.decode('utf-8'))
r = etcd.EtcdResult(**res)
if response.status == 201:
r.newKey = True
r.parse_headers(response)
return r
except Exception as e:
raise etcd.EtcdException('Unable to decode server response: %s' %
e)
def test_get_subtree_2_level(self):
"""
Test get_subtree() for a read with tree 2 levels deep.
"""
leaf0 = {
'key': "/test/leaf0",
'value': "hello1",
'expiration': None,
'ttl': None,
'modifiedIndex': 5,
'createdIndex': 1,
'newKey': False,
'dir': False,
}
leaf1 = {
'key': "/test/leaf1",
'value': "hello2",
'expiration': None,
'ttl': None,
'modifiedIndex': 6,
'createdIndex': 2,
'newKey': False,
'dir': False,
}
testnode = {
"node": {
'key': "/test/",
'expiration': None,
'ttl': None,
'modifiedIndex': 6,
'createdIndex': 2,
'newKey': False,
'dir': True,
'nodes': [leaf0, leaf1]
}
}
result = etcd.EtcdResult(**testnode)
self.assertEqual(result.key, "/test/")
self.assertTrue(result.dir)
# Get subtree returns just two leaves for leaves only.
subtree = list(result.get_subtree(leaves_only=True))
self.assertEqual(subtree[0].key, "/test/leaf0")
self.assertEqual(subtree[1].key, "/test/leaf1")
self.assertEqual(len(subtree), 2)
# Get subtree returns leaves and directory.
subtree = list(result.get_subtree(leaves_only=False))
self.assertEqual(subtree[0].key, "/test/")
self.assertEqual(subtree[1].key, "/test/leaf0")
self.assertEqual(subtree[2].key, "/test/leaf1")
self.assertEqual(len(subtree), 3)
def test_watch_index(self):
""" Can watch a key starting from the given Index """
d = {
u'action': u'get',
u'node': {
u'modifiedIndex': 170,
u'key': u'/testkey',
u'value': u'testold'
}
}
self._mock_api(200, d)
res = self.client.read('/testkey', wait=True, waitIndex=True)
self.assertEquals(res, etcd.EtcdResult(**d))
def test_watch(self):
""" Can watch a key """
d = {
u'action': u'get',
u'node': {
u'modifiedIndex': 190,
u'key': u'/testkey',
u'value': u'test'
}
}
self._mock_api(200, d)
res = self.client.read('/testkey', wait=True)
self.assertEquals(res, etcd.EtcdResult(**d))
def test_delete(self):
""" Can delete a value """
d = {
u'action': u'delete',
u'node': {
u'key': u'/testkey',
"modifiedIndex": 3,
"createdIndex": 2
}
}
self._mock_api(200, d)
res = self.client.delete('/testKey')
self.assertEquals(res, etcd.EtcdResult(**d))
def get_etcd_write_result(key, value):
"""Return EtcdResult object for write regular key"""
data = {
u'action': u'set',
u'node': {
u'expiration': u'2013-09-14T00:56:59.316195568+02:00',
u'modifiedIndex': 183,
u'key': key,
u'ttl': 19,
u'value': value
}
}
return etcd.EtcdResult(**data)
def test_get_subtree_3_level(self):
"""
Test get_subtree() for a read with tree 3 levels deep.
"""
leaf0 = {
'key': "/test/mid0/leaf0",
'value': "hello1",
}
leaf1 = {
'key': "/test/mid0/leaf1",
'value': "hello2",
}
leaf2 = {
'key': "/test/mid1/leaf2",
'value': "hello1",
}
leaf3 = {
'key': "/test/mid1/leaf3",
'value': "hello2",
}
mid0 = {'key': "/test/mid0/", 'dir': True, 'nodes': [leaf0, leaf1]}
mid1 = {'key': "/test/mid1/", 'dir': True, 'nodes': [leaf2, leaf3]}
testnode = {
"node": {
'key': "/test/",
'dir': True,
'nodes': [mid0, mid1]
}
}
result = etcd.EtcdResult(**testnode)
self.assertEqual(result.key, "/test/")
self.assertTrue(result.dir)
# Get subtree returns just two leaves for leaves only.
subtree = list(result.get_subtree(leaves_only=True))
self.assertEqual(subtree[0].key, "/test/mid0/leaf0")
self.assertEqual(subtree[1].key, "/test/mid0/leaf1")
self.assertEqual(subtree[2].key, "/test/mid1/leaf2")
self.assertEqual(subtree[3].key, "/test/mid1/leaf3")
self.assertEqual(len(subtree), 4)
# Get subtree returns leaves and directory.
subtree = list(result.get_subtree(leaves_only=False))
self.assertEqual(subtree[0].key, "/test/")
self.assertEqual(subtree[1].key, "/test/mid0/")
self.assertEqual(subtree[2].key, "/test/mid0/leaf0")
self.assertEqual(subtree[3].key, "/test/mid0/leaf1")
self.assertEqual(subtree[4].key, "/test/mid1/")
self.assertEqual(subtree[5].key, "/test/mid1/leaf2")
self.assertEqual(subtree[6].key, "/test/mid1/leaf3")
self.assertEqual(len(subtree), 7)
def test_set_plain(self):
""" Can set a value """
d = {u'action': u'set',
u'node': {
u'expiration': u'2013-09-14T00:56:59.316195568+02:00',
u'modifiedIndex': 183,
u'key': u'/testkey',
u'ttl': 19,
u'value': u'test'
}
}
self._mock_api(200, d)
res = self.client.write('/testkey', 'test')
self.assertEquals(res, etcd.EtcdResult(**d))
def test_compare_and_swap(self):
""" Can set compare-and-swap a value """
d = {u'action': u'compareAndSwap',
u'node': {
u'expiration': u'2013-09-14T00:56:59.316195568+02:00',
u'modifiedIndex': 183,
u'key': u'/testkey',
u'ttl': 19,
u'value': u'test'
}
}
self._mock_api(200, d)
res = self.client.write('/testkey', 'test', prevValue='test_old')
self.assertEquals(res, etcd.EtcdResult(**d))
def get_etcd_alerts(path, recursive):
etcd_tree = {
"node": {
'key': "/alerts/",
'expiration': None,
'ttl': None,
'modifiedIndex': 5,
'createdIndex': 1,
'newKey': False,
'dir': True,
'nodes':
[etcd_alert1, etcd_alert2, etcd_alert3, etcd_alert4]
}
}
return etcd.EtcdResult(**etcd_tree)
def read(key):
if key == 'indexes/tags/tendrl/integration/None':
raise etcd.EtcdKeyNotFound
elif key == 'indexes/tags/tendrl/integration/' \
'94ac63ba-de73-4e7f-8dfa-9010d9554084':
node_ids = maps.NamedDict()
node_ids['value'] = '["bc4cad92-b7e3-4c63-b820-a439db3a0516",' \
'"a71af0e5-5241-4856-9e9c-22627a466b8d"]'
return node_ids
else:
return etcd.EtcdResult(
node={
'newKey':
False,
'raft_index':
449389,
'_children': [{
u'createdIndex':
1657,
u'modifiedIndex':
1657,
u'dir':
True,
u'key':
u'/clusters/'
u'b7d4b5ae-d33d-'
u'49cf-ae6d-5d6bb'
u'494ece7'
}],
'createdIndex':
1657,
'modifiedIndex':
1657,
'value':
None,
'etcd_index':
101021,
'expiration':
None,
'key':
u'/clusters',
'ttl':
None,
'action':
u'get',
'dir':
True
})
def test_refresh(self):
""" Can refresh a new value """
d = {
u'action': u'update',
u'node': {
u'expiration': u'2016-05-31T08:27:54.660337Z',
u'modifiedIndex': 183,
u'key': u'/testkey',
u'ttl': 600,
u'value': u'test'
}
}
self._mock_api(200, d)
res = self.client.refresh('/testkey', ttl=600)
self.assertEquals(res, etcd.EtcdResult(**d))
def _result_from_response(self, response):
""" Creates an EtcdResult from json dictionary """
raw_response = response.data
try:
res = json.loads(raw_response.decode('utf-8'))
except (TypeError, ValueError, UnicodeError) as e:
raise etcd.EtcdException(
'Server response was not valid JSON: %r' % e)
try:
r = etcd.EtcdResult(**res)
if response.status == 201:
r.newKey = True
r.parse_headers(response)
return r
except Exception as e:
raise etcd.EtcdException(
'Unable to decode server response: %r' % e)
def after_scenario(context, scenario):
"""
Runs after every scenario.
"""
# Wait for investigator processes to finish.
busy_states = (C.HOST_STATUS_INVESTIGATING, C.HOST_STATUS_BOOTSTRAPPING)
try:
etcd_resp = context.etcd.read('/commissaire/hosts', recursive=True)
for child in etcd_resp._children:
resp_data = etcd.EtcdResult(node=child)
host_data = json.loads(resp_data.value)
while host_data.get('status') in busy_states:
context.etcd.watch(resp_data.key)
resp_data = context.etcd.get(resp_data.key)
host_data = json.loads(resp_data.value)
except etcd.EtcdKeyNotFound:
pass
def test_get_locker(self):
self.recursive_read()
self.assertEquals((u'/_locks/test_lock/1',
etcd.EtcdResult(
node={
'newKey': False,
'_children': [],
'createdIndex': 33,
'modifiedIndex': 33,
'value': u'2qwwwq',
'expiration': None,
'key': u'/_locks/test_lock/1',
'ttl': None,
'action': None,
'dir': False
}), 1), self.locker._get_locker())
with self.assertRaises(etcd.EtcdLockExpired):
self.locker._sequence = '35'
self.locker._get_locker()
