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test_main.py
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test_main.py
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import json
from twisted.trial.unittest import TestCase
from twisted.web.server import Site
from twisted.internet import reactor
from twisted.internet.defer import inlineCallbacks, DeferredQueue, Deferred
from twisted.web.client import HTTPConnectionPool
from consular.main import Consular
import treq
class ConsularTest(TestCase):
timeout = 1
def setUp(self):
self.consular = Consular(
'http://localhost:8500',
'http://localhost:8080',
)
# spin up a site so we can test it, pretty sure Klein has better
# ways of doing this but they're not documented anywhere.
self.site = Site(self.consular.app.resource())
self.listener = reactor.listenTCP(0, self.site, interface='localhost')
self.listener_port = self.listener.getHost().port
self.addCleanup(self.listener.loseConnection)
# cleanup stuff for treq's global http request pool
self.pool = HTTPConnectionPool(reactor, persistent=False)
self.addCleanup(self.pool.closeCachedConnections)
# We use this to mock requests going to Consul
self.consul_requests = DeferredQueue()
def mock_consul_request(method, path, data=None):
d = Deferred()
self.consul_requests.put({
'method': method,
'path': path,
'data': data,
'deferred': d,
})
return d
self.patch(self.consular, 'consul_request', mock_consul_request)
def request(self, method, path, data=None):
return treq.request(
method, 'http://localhost:%s%s' % (
self.listener_port,
path
),
data=(json.dumps(data) if data is not None else None),
pool=self.pool)
def tearDown(self):
pass
@inlineCallbacks
def test_service(self):
response = yield self.request('GET', '/')
self.assertEqual(response.code, 200)
self.assertEqual((yield response.json()), [])
@inlineCallbacks
def test_handle_unknown_event(self):
response = yield self.request('POST', '/events', {'eventType': 'Foo'})
data = yield response.json()
self.assertEqual(data, {
'error': 'Event type Foo not supported.'
})
@inlineCallbacks
def test_handle_unspecified_event(self):
response = yield self.request('POST', '/events', {})
data = yield response.json()
self.assertEqual(data, {
'error': 'Event type None not supported.'
})
@inlineCallbacks
def test_TASK_STAGING(self):
response = yield self.request('POST', '/events', {
"eventType": "status_update_event",
"timestamp": "2014-03-01T23:29:30.158Z",
"slaveId": "20140909-054127-177048842-5050-1494-0",
"taskId": "my-app_0-1396592784349",
"taskStatus": "TASK_STAGING",
"appId": "/my-app",
"host": "slave-1234.acme.org",
"ports": [31372],
"version": "2014-04-04T06:26:23.051Z"
})
self.assertEqual((yield response.json()), {
'status': 'ok'
})
@inlineCallbacks
def test_TASK_RUNNING(self):
d = self.request('POST', '/events', {
"eventType": "status_update_event",
"timestamp": "2014-03-01T23:29:30.158Z",
"slaveId": "20140909-054127-177048842-5050-1494-0",
"taskId": "my-app_0-1396592784349",
"taskStatus": "TASK_RUNNING",
"appId": "/my-app",
"host": "slave-1234.acme.org",
"ports": [31372],
"version": "2014-04-04T06:26:23.051Z"
})
request = yield self.consul_requests.get()
self.assertEqual(request['method'], 'PUT')
self.assertEqual(request['path'], '/v1/agent/service/register')
self.assertEqual(request['data'], {
'Name': 'my-app',
'Address': 'slave-1234.acme.org',
'Port': 31372,
})
request['deferred'].callback('ok')
response = yield d
self.assertEqual((yield response.json()), {
'status': 'ok'
})
@inlineCallbacks
def test_TASK_KILLED(self):
d = self.request('POST', '/events', {
"eventType": "status_update_event",
"timestamp": "2014-03-01T23:29:30.158Z",
"slaveId": "20140909-054127-177048842-5050-1494-0",
"taskId": "my-app_0-1396592784349",
"taskStatus": "TASK_KILLED",
"appId": "/my-app",
"host": "slave-1234.acme.org",
"ports": [31372],
"version": "2014-04-04T06:26:23.051Z"
})
request = yield self.consul_requests.get()
self.assertEqual(request['method'], 'PUT')
self.assertEqual(
request['path'], '/v1/agent/service/deregister/my-app')
request['deferred'].callback('ok')
response = yield d
self.assertEqual((yield response.json()), {
'status': 'ok'
})