def test_open_slots(self):
pool = Pool(pool='test_pool', slots=5)
dag = DAG(
dag_id='test_open_slots',
start_date=DEFAULT_DATE, )
t1 = DummyOperator(task_id='dummy1', dag=dag, pool='test_pool')
t2 = DummyOperator(task_id='dummy2', dag=dag, pool='test_pool')
ti1 = TI(task=t1, execution_date=DEFAULT_DATE)
ti2 = TI(task=t2, execution_date=DEFAULT_DATE)
ti1.state = State.RUNNING
ti2.state = State.QUEUED
session = settings.Session
session.add(pool)
session.add(ti1)
session.add(ti2)
session.commit()
session.close()
self.assertEqual(3, pool.open_slots())
self.assertEqual(1, pool.used_slots())
self.assertEqual(1, pool.queued_slots())
self.assertEqual(2, pool.occupied_slots())
def test_infinite_slots(self):
pool = Pool(pool='test_pool', slots=-1)
dag = DAG(
dag_id='test_infinite_slots',
start_date=DEFAULT_DATE, )
op1 = DummyOperator(task_id='dummy1', dag=dag, pool='test_pool')
op2 = DummyOperator(task_id='dummy2', dag=dag, pool='test_pool')
ti1 = TI(task=op1, execution_date=DEFAULT_DATE)
ti2 = TI(task=op2, execution_date=DEFAULT_DATE)
ti1.state = State.RUNNING
ti2.state = State.QUEUED
session = settings.Session
session.add(pool)
session.add(ti1)
session.add(ti2)
session.commit()
session.close()
self.assertEqual(float('inf'), pool.open_slots()) # pylint: disable=no-value-for-parameter
self.assertEqual(1, pool.used_slots()) # pylint: disable=no-value-for-parameter
self.assertEqual(1, pool.queued_slots()) # pylint: disable=no-value-for-parameter
self.assertEqual(2, pool.occupied_slots()) # pylint: disable=no-value-for-parameter
