def test_sequential_submit_get(mocker, docker_python):
sched = QueueScheduler()
mocker.spy(sched, 'on_update')
with Running(sched, name='test-scheduler'):
for i in range(3):
task = PythonTask(id=TaskID(value='test-python-task-{}'.format(i)),
fn=sum, args=[[1, 10, i]],
name='test-python-task-name',
resources=[Cpus(0.1), Mem(64), Disk(0)])
result = sched.submit(task)
assert result.get(timeout=10) == 11 + i
def test_docker_python_exception():
sched = QueueScheduler()
def error():
raise Exception('Dummy exception on executor side!')
task = PythonTask(id=TaskID(value='test-python-task-id'),
fn=error, name='test-python-task-name',
resources=[Cpus(0.1), Mem(64), Disk(0)])
with Running(sched, name='test-scheduler'):
result = sched.submit(task)
with pytest.raises(Exception) as e:
result.get()
assert e.value.message == 'Dummy exception on executor side!'
def test_multiple_submissions(mocker, docker_python):
sched = QueueScheduler()
mocker.spy(sched, 'on_update')
with Running(sched, name='test-scheduler'):
results = [None] * 3
for i in range(3):
task = PythonTask(id=TaskID(value='test-python-task-{}'.format(i)),
fn=sum, args=[[1, 10, i]],
name='test-python-task-name',
resources=[Cpus(0.1), Mem(64), Disk(0)])
results[i] = sched.submit(task)
sched.wait() # block until all tasks finishes
assert [r.get() for r in results] == [11, 12, 13]
def test_sequential_execution(mocker, docker_python):
sched = QueueScheduler()
mocker.spy(sched, 'on_update')
with Running(sched, name='test-scheduler'):
tasks = []
for i in range(3):
task = PythonTask(id=TaskID(value='test-python-task-{}'.format(i)),
fn=sum,
args=[[1, 10, i]],
name='test-python-task-name',
resources=[Cpus(0.1),
Mem(64), Disk(0)])
sched.submit(task)
tasks.append(task)
sched.wait()
assert task.status.data == 11 + i
def test_docker_python(mocker, docker_python):
sched = QueueScheduler()
mocker.spy(sched, 'on_update')
with Running(sched, name='test-scheduler'):
sched.submit(docker_python)
sched.wait() # block until all tasks finishes
calls = sched.on_update.call_args_list
assert len(calls) == 2
args, kwargs = calls[0]
assert args[1].task_id.value == 'test-python-task-id'
assert args[1].state == 'TASK_RUNNING'
args, kwargs = calls[1]
assert args[1].task_id.value == 'test-python-task-id'
assert args[1].state == 'TASK_FINISHED'
def test_parallel_execution(mocker, docker_python):
sched = QueueScheduler()
mocker.spy(sched, 'on_update')
with Running(sched, name='test-scheduler'):
tasks = []
for i in range(3):
task = PythonTask(id=TaskID(value='test-python-task-{}'.format(i)),
fn=sum,
args=[[1, 10, i]],
name='test-python-task-name',
resources=[Cpus(0.1),
Mem(64), Disk(0)])
sched.submit(task)
tasks.append(task)
sched.wait() # block until all tasks finishes
assert [t.status.data for t in tasks] == [11, 12, 13]
def test_docker_python_exception():
sched = QueueScheduler()
def error():
raise TypeError('Dummy exception on executor side!')
task = PythonTask(id=TaskID(value='test-python-task-id'),
fn=error,
name='test-python-task-name',
resources=[Cpus(0.1), Mem(64),
Disk(0)])
with Running(sched, name='test-scheduler'):
sched.submit(task)
sched.wait()
assert task.status.has_failed()
assert isinstance(task.status.exception, RemoteException)
assert isinstance(task.status.exception, TypeError)
def test_scheduler_retries(mocker):
task = PythonTask(id=TaskID(value='non-existing-docker-image'),
name='test',
fn=lambda: range(int(10e10)),
docker='pina/sen',
resources=[Cpus(0.1), Mem(128),
Disk(0)])
sched = QueueScheduler(name='test-executor-lost', retries=3)
mocker.spy(sched, 'on_update')
with Running(sched, name='test-scheduler'):
sched.submit(task)
sched.wait()
assert sched.on_update.call_count == 3
states = ['TASK_STARTING', 'TASK_STARTING', 'TASK_FAILED']
for ((args, kwargs), state) in zip(sched.on_update.call_args_list, states):
assert args[1].state == state
def test_runner_context_manager():
sched = QueueScheduler(name='test-scheduler')
with Running(sched, name='test-scheduler'):
sched.wait()
assert sched
def test_docker_python_result(mocker, docker_python):
sched = QueueScheduler()
with Running(sched, name='test-scheduler'):
sched.submit(docker_python)
sched.wait() # block until all tasks finishes
assert docker_python.status.data == 10
