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formation.py
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"""
Unit tests for the Deis api app.
Run the tests with "./manage.py test api"
"""
from __future__ import unicode_literals
import json
import os.path
from django.test import TestCase
from deis import settings
class FormationTest(TestCase):
"""Tests creation of different node formations"""
fixtures = ['tests.json']
def setUp(self):
self.assertTrue(
self.client.login(username='autotest', password='password'))
url = '/api/providers'
creds = {'secret_key': 'x' * 64, 'access_key': 1 * 20}
body = {'id': 'autotest', 'type': 'mock', 'creds': json.dumps(creds)}
response = self.client.post(url, json.dumps(body), content_type='application/json')
self.assertEqual(response.status_code, 201)
url = '/api/flavors'
body = {'id': 'autotest', 'provider': 'autotest',
'params': json.dumps({'region': 'us-west-2', 'instance_size': 'm1.medium'})}
response = self.client.post(url, json.dumps(body), content_type='application/json')
self.assertEqual(response.status_code, 201)
def test_formation(self):
"""
Test that a user can create, read, update and delete a node formation
"""
url = '/api/formations'
body = {'id': 'autotest'}
response = self.client.post(url, json.dumps(body), content_type='application/json')
self.assertEqual(response.status_code, 201)
formation_id = response.data['id'] # noqa
self.assertIn('layers', response.data)
self.assertIn('containers', response.data)
response = self.client.get('/api/formations')
self.assertEqual(response.status_code, 200)
self.assertEqual(len(response.data['results']), 1)
url = '/api/formations/{formation_id}'.format(**locals())
response = self.client.get(url)
self.assertEqual(response.status_code, 200)
body = {'id': 'new'}
response = self.client.patch(url, json.dumps(body), content_type='application/json')
self.assertEqual(response.status_code, 405)
response = self.client.delete(url)
self.assertEqual(response.status_code, 204)
def test_formation_auto_id(self):
body = {'id': 'autotest'}
response = self.client.post('/api/formations', json.dumps(body),
content_type='application/json')
self.assertEqual(response.status_code, 201)
self.assertTrue(response.data['id'])
return response
def test_formation_errors(self):
# test duplicate id
body = {}
response = self.client.post('/api/formations', json.dumps(body),
content_type='application/json')
self.assertEqual(response.status_code, 201)
self.assertTrue(response.data['id'])
body = {'id': response.data['id']}
response = self.client.post('/api/formations', json.dumps(body),
content_type='application/json')
self.assertEqual(response.status_code, 400)
self.assertEqual(json.loads(response.content), 'Formation with this Id already exists.')
def test_formation_scale_errors(self):
url = '/api/formations'
body = {'id': 'autotest'}
response = self.client.post(url, json.dumps(body), content_type='application/json')
self.assertEqual(response.status_code, 201)
formation_id = response.data['id'] # noqa
# scaling containers without a runtime layer should throw an error
url = '/api/formations/{formation_id}/scale/containers'.format(**locals())
body = {'web': 1}
response = self.client.post(url, json.dumps(body), content_type='application/json')
self.assertEqual(response.status_code, 400)
self.assertEqual(json.loads(response.content),
'Must create a "runtime" layer to host containers')
# scaling containers without any runtime nodes should throw an error
url = '/api/formations/{formation_id}/layers'.format(**locals())
body = {'id': 'runtime', 'flavor': 'autotest', 'run_list': 'recipe[deis::runtime]'}
response = self.client.post(url, json.dumps(body), content_type='application/json')
self.assertEqual(response.status_code, 201)
url = '/api/formations/{formation_id}/scale/containers'.format(**locals())
body = {'web': 1}
response = self.client.post(url, json.dumps(body), content_type='application/json')
self.assertEqual(response.status_code, 400)
self.assertEqual(json.loads(response.content),
'Must scale runtime nodes > 0 to host containers')
def test_formation_actions(self):
url = '/api/formations'
body = {'id': 'autotest'}
response = self.client.post(url, json.dumps(body), content_type='application/json')
self.assertEqual(response.status_code, 201)
formation_id = response.data['id'] # noqa
# create & scale a basic formation
url = '/api/formations/{formation_id}/layers'.format(**locals())
body = {'id': 'proxy', 'flavor': 'autotest', 'run_list': 'recipe[deis::proxy]'}
response = self.client.post(url, json.dumps(body), content_type='application/json')
self.assertEqual(response.status_code, 201)
url = '/api/formations/{formation_id}/layers'.format(**locals())
body = {'id': 'runtime', 'flavor': 'autotest', 'run_list': 'recipe[deis::runtime]'}
response = self.client.post(url, json.dumps(body), content_type='application/json')
self.assertEqual(response.status_code, 201)
url = '/api/formations/{formation_id}/scale/layers'.format(**locals())
body = {'proxy': 2, 'runtime': 4}
response = self.client.post(url, json.dumps(body), content_type='application/json')
self.assertEqual(response.status_code, 200)
# test calculate
url = '/api/formations/{formation_id}/calculate'.format(**locals())
response = self.client.post(url)
self.assertEqual(response.status_code, 200)
self.assertIn('nodes', response.data)
self.assertIn('containers', response.data)
self.assertIn('proxy', response.data)
self.assertIn('release', response.data)
# test converge
url = '/api/formations/{formation_id}/converge'.format(**locals())
response = self.client.post(url)
self.assertEqual(response.status_code, 200)
self.assertIn('nodes', response.data)
self.assertIn('containers', response.data)
self.assertIn('proxy', response.data)
self.assertIn('release', response.data)
# test balance
url = '/api/formations/{formation_id}/balance'.format(**locals())
response = self.client.post(url)
self.assertEqual(response.status_code, 200)
self.assertIn('nodes', response.data)
self.assertIn('containers', response.data)
self.assertIn('proxy', response.data)
self.assertIn('release', response.data)
# test logs
if not os.path.exists(settings.DEIS_LOG_DIR):
os.mkdir(settings.DEIS_LOG_DIR)
path = os.path.join(settings.DEIS_LOG_DIR, formation_id + '.log')
try:
os.remove(path) # cleanup any old log files
except:
pass
url = '/api/formations/{formation_id}/logs'.format(**locals())
response = self.client.post(url)
self.assertEqual(response.status_code, 404)
self.assertEqual(response.data, 'No logs for {}'.format(formation_id))
# write out some fake log data and try again
with open(path, 'w') as f:
f.write(FAKE_LOG_DATA)
response = self.client.post(url)
self.assertEqual(response.status_code, 200)
self.assertEqual(response.data, FAKE_LOG_DATA)
# test run
url = '/api/formations/{formation_id}/run'.format(**locals())
body = {'commands': 'ls -al'}
response = self.client.post(url, json.dumps(body), content_type='application/json')
self.assertEqual(response.status_code, 200)
self.assertIn('.gitignore', response.data[0])
self.assertEqual(response.data[1], 0)
FAKE_LOG_DATA = """
2013-08-15 12:41:25 [33454] [INFO] Starting gunicorn 17.5
2013-08-15 12:41:25 [33454] [INFO] Listening at: http://0.0.0.0:5000 (33454)
2013-08-15 12:41:25 [33454] [INFO] Using worker: sync
2013-08-15 12:41:25 [33457] [INFO] Booting worker with pid 33457
"""