services/nodemanager/tests/test_jobqueue.py

   1 #!/usr/bin/env python
   2
   3 from __future__ import absolute_import, print_function
   4
   5 import unittest
   6
   7 import arvnodeman.jobqueue as jobqueue
   8 from . import testutil
   9
  10 class ServerCalculatorTestCase(unittest.TestCase):
  11     def make_calculator(self, factors, **kwargs):
  12         return jobqueue.ServerCalculator(
  13             [(testutil.MockSize(n), {'cores': n}) for n in factors], **kwargs)
  14
  15     def calculate(self, servcalc, *constraints):
  16         return servcalc.servers_for_queue(
  17             [{'uuid': 'zzzzz-jjjjj-{:015x}'.format(index),
  18               'runtime_constraints': cdict}
  19              for index, cdict in enumerate(constraints)])
  20
  21     def test_empty_queue_needs_no_servers(self):
  22         servcalc = self.make_calculator([1])
  23         self.assertEqual([], servcalc.servers_for_queue([]))
  24
  25     def test_easy_server_count(self):
  26         servcalc = self.make_calculator([1])
  27         servlist = self.calculate(servcalc, {'min_nodes': 3})
  28         self.assertEqual(3, len(servlist))
  29
  30     def test_implicit_server_count(self):
  31         servcalc = self.make_calculator([1])
  32         servlist = self.calculate(servcalc, {}, {'min_nodes': 3})
  33         self.assertEqual(4, len(servlist))
  34
  35     def test_bad_min_nodes_override(self):
  36         servcalc = self.make_calculator([1])
  37         servlist = self.calculate(servcalc,
  38                                   {'min_nodes': -2}, {'min_nodes': 'foo'})
  39         self.assertEqual(2, len(servlist))
  40
  41     def test_ignore_unsatisfiable_jobs(self):
  42         servcalc = self.make_calculator([1], max_nodes=9)
  43         servlist = self.calculate(servcalc,
  44                                   {'min_cores_per_node': 2},
  45                                   {'min_ram_mb_per_node': 256},
  46                                   {'min_nodes': 6},
  47                                   {'min_nodes': 12},
  48                                   {'min_scratch_mb_per_node': 200})
  49         self.assertEqual(6, len(servlist))
  50
  51     def test_job_requesting_max_nodes_accepted(self):
  52         servcalc = self.make_calculator([1], max_nodes=4)
  53         servlist = self.calculate(servcalc, {'min_nodes': 4})
  54         self.assertEqual(4, len(servlist))
  55
  56     def test_cheapest_size(self):
  57         servcalc = self.make_calculator([2, 4, 1, 3])
  58         self.assertEqual(testutil.MockSize(1), servcalc.cheapest_size())
  59
  60
  61 class JobQueueMonitorActorTestCase(testutil.RemotePollLoopActorTestMixin,
  62                                    unittest.TestCase):
  63     TEST_CLASS = jobqueue.JobQueueMonitorActor
  64
  65     class MockCalculator(object):
  66         @staticmethod
  67         def servers_for_queue(queue):
  68             return [testutil.MockSize(n) for n in queue]
  69
  70
  71     def build_monitor(self, side_effect, *args, **kwargs):
  72         super(JobQueueMonitorActorTestCase, self).build_monitor(*args, **kwargs)
  73         self.client.jobs().queue().execute.side_effect = side_effect
  74
  75     def test_subscribers_get_server_lists(self):
  76         self.build_monitor([{'items': [1, 2]}], self.MockCalculator())
  77         self.monitor.subscribe(self.subscriber).get(self.TIMEOUT)
  78         self.stop_proxy(self.monitor)
  79         self.subscriber.assert_called_with([testutil.MockSize(1),
  80                                             testutil.MockSize(2)])
  81
  82
  83 if __name__ == '__main__':
  84     unittest.main()
  85