services/nodemanager/tests/test_computenode_driver_ec2.py

   1 #!/usr/bin/env python
   2
   3 from __future__ import absolute_import, print_function
   4
   5 import ssl
   6 import time
   7 import unittest
   8
   9 import libcloud.common.types as cloud_types
  10 import mock
  11
  12 import arvnodeman.computenode.driver.ec2 as ec2
  13 from . import testutil
  14
  15 class EC2ComputeNodeDriverTestCase(unittest.TestCase):
  16     def setUp(self):
  17         self.driver_mock = mock.MagicMock(name='driver_mock')
  18
  19     def new_driver(self, auth_kwargs={}, list_kwargs={}, create_kwargs={}):
  20         create_kwargs.setdefault('ping_host', '100::')
  21         return ec2.ComputeNodeDriver(
  22             auth_kwargs, list_kwargs, create_kwargs,
  23             driver_class=self.driver_mock)
  24
  25     def test_driver_instantiation(self):
  26         kwargs = {'key': 'testkey'}
  27         driver = self.new_driver(auth_kwargs=kwargs)
  28         self.assertTrue(self.driver_mock.called)
  29         self.assertEqual(kwargs, self.driver_mock.call_args[1])
  30
  31     def test_list_kwargs_become_filters(self):
  32         # We're also testing tag name translation.
  33         driver = self.new_driver(list_kwargs={'tag_test': 'true'})
  34         driver.list_nodes()
  35         list_method = self.driver_mock().list_nodes
  36         self.assertTrue(list_method.called)
  37         self.assertEqual({'tag:test': 'true'},
  38                           list_method.call_args[1].get('ex_filters'))
  39
  40     def test_create_location_loaded_at_initialization(self):
  41         kwargs = {'location': 'testregion'}
  42         driver = self.new_driver(create_kwargs=kwargs)
  43         self.assertTrue(self.driver_mock().list_locations)
  44
  45     def test_create_image_loaded_at_initialization(self):
  46         kwargs = {'image': 'testimage'}
  47         driver = self.new_driver(create_kwargs=kwargs)
  48         self.assertTrue(self.driver_mock().list_images)
  49
  50     def test_create_includes_ping_secret(self):
  51         arv_node = testutil.arvados_node_mock(info={'ping_secret': 'ssshh'})
  52         driver = self.new_driver()
  53         driver.create_node(testutil.MockSize(1), arv_node)
  54         create_method = self.driver_mock().create_node
  55         self.assertTrue(create_method.called)
  56         self.assertIn('ping_secret=ssshh',
  57                       create_method.call_args[1].get('ex_userdata',
  58                                                      'arg missing'))
  59
  60     def test_tags_created_from_arvados_node(self):
  61         arv_node = testutil.arvados_node_mock(8)
  62         cloud_node = testutil.cloud_node_mock(8)
  63         driver = self.new_driver(list_kwargs={'tag:list': 'test'})
  64         self.assertEqual({'ex_metadata': {'list': 'test'},
  65                           'name': 'compute8.zzzzz.arvadosapi.com'},
  66                          driver.arvados_create_kwargs(arv_node))
  67
  68     def test_tags_set_default_hostname_from_new_arvados_node(self):
  69         arv_node = testutil.arvados_node_mock(hostname=None)
  70         driver = self.new_driver()
  71         actual = driver.arvados_create_kwargs(arv_node)
  72         self.assertEqual('dynamic.compute.zzzzz.arvadosapi.com',
  73                          actual['name'])
  74
  75     def test_sync_node(self):
  76         arv_node = testutil.arvados_node_mock(1)
  77         cloud_node = testutil.cloud_node_mock(2)
  78         driver = self.new_driver()
  79         driver.sync_node(cloud_node, arv_node)
  80         tag_mock = self.driver_mock().ex_create_tags
  81         self.assertTrue(tag_mock.called)
  82         self.assertEqual('compute1.zzzzz.arvadosapi.com',
  83                          tag_mock.call_args[0][1].get('Name', 'no name'))
  84
  85     def test_node_create_time(self):
  86         refsecs = int(time.time())
  87         reftuple = time.gmtime(refsecs)
  88         node = testutil.cloud_node_mock()
  89         node.extra = {'launch_time': time.strftime('%Y-%m-%dT%H:%M:%S.000Z',
  90                                                    reftuple)}
  91         self.assertEqual(refsecs, ec2.ComputeNodeDriver.node_start_time(node))
  92
  93     def test_cloud_exceptions(self):
  94         for error in [Exception("test exception"),
  95                       IOError("test exception"),
  96                       ssl.SSLError("test exception"),
  97                       cloud_types.LibcloudError("test exception")]:
  98             self.assertTrue(ec2.ComputeNodeDriver.is_cloud_exception(error),
  99                             "{} not flagged as cloud exception".format(error))
 100
 101     def test_noncloud_exceptions(self):
 102         self.assertFalse(
 103             ec2.ComputeNodeDriver.is_cloud_exception(ValueError("test error")),
 104             "ValueError flagged as cloud exception")