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test_sets.py
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test_sets.py
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from __future__ import absolute_import
from __future__ import with_statement
import anyjson
from celery import current_app
from celery.task import Task
from celery.task.sets import subtask, TaskSet
from celery.canvas import Signature
from celery.tests.utils import Case
class MockTask(Task):
name = "tasks.add"
def run(self, x, y, **kwargs):
return x + y
@classmethod
def apply_async(cls, args, kwargs, **options):
return (args, kwargs, options)
@classmethod
def apply(cls, args, kwargs, **options):
return (args, kwargs, options)
class test_subtask(Case):
def test_behaves_like_type(self):
s = subtask("tasks.add", (2, 2), {"cache": True},
{"routing_key": "CPU-bound"})
self.assertDictEqual(subtask(s), s)
def test_task_argument_can_be_task_cls(self):
s = subtask(MockTask, (2, 2))
self.assertEqual(s.task, MockTask.name)
def test_apply_async(self):
s = MockTask.subtask((2, 2), {"cache": True},
{"routing_key": "CPU-bound"})
args, kwargs, options = s.apply_async()
self.assertTupleEqual(args, (2, 2))
self.assertDictEqual(kwargs, {"cache": True})
self.assertDictEqual(options, {"routing_key": "CPU-bound"})
def test_delay_argmerge(self):
s = MockTask.subtask((2, ), {"cache": True},
{"routing_key": "CPU-bound"})
args, kwargs, options = s.delay(10, cache=False, other="foo")
self.assertTupleEqual(args, (10, 2))
self.assertDictEqual(kwargs, {"cache": False, "other": "foo"})
self.assertDictEqual(options, {"routing_key": "CPU-bound"})
def test_apply_async_argmerge(self):
s = MockTask.subtask((2, ), {"cache": True},
{"routing_key": "CPU-bound"})
args, kwargs, options = s.apply_async((10, ),
{"cache": False, "other": "foo"},
routing_key="IO-bound",
exchange="fast")
self.assertTupleEqual(args, (10, 2))
self.assertDictEqual(kwargs, {"cache": False, "other": "foo"})
self.assertDictEqual(options, {"routing_key": "IO-bound",
"exchange": "fast"})
def test_apply_argmerge(self):
s = MockTask.subtask((2, ), {"cache": True},
{"routing_key": "CPU-bound"})
args, kwargs, options = s.apply((10, ),
{"cache": False, "other": "foo"},
routing_key="IO-bound",
exchange="fast")
self.assertTupleEqual(args, (10, 2))
self.assertDictEqual(kwargs, {"cache": False, "other": "foo"})
self.assertDictEqual(options, {"routing_key": "IO-bound",
"exchange": "fast"})
def test_is_JSON_serializable(self):
s = MockTask.subtask((2, ), {"cache": True},
{"routing_key": "CPU-bound"})
s.args = list(s.args) # tuples are not preserved
# but this doesn't matter.
self.assertEqual(s, subtask(anyjson.loads(anyjson.dumps(s))))
def test_repr(self):
s = MockTask.subtask((2, ), {"cache": True})
self.assertIn("2", repr(s))
self.assertIn("cache=True", repr(s))
def test_reduce(self):
s = MockTask.subtask((2, ), {"cache": True})
cls, args = s.__reduce__()
self.assertDictEqual(dict(cls(*args)), dict(s))
class test_TaskSet(Case):
def test_task_arg_can_be_iterable__compat(self):
ts = TaskSet([MockTask.subtask((i, i))
for i in (2, 4, 8)])
self.assertEqual(len(ts), 3)
def test_respects_ALWAYS_EAGER(self):
app = current_app
class MockTaskSet(TaskSet):
applied = 0
def apply(self, *args, **kwargs):
self.applied += 1
ts = MockTaskSet([MockTask.subtask((i, i))
for i in (2, 4, 8)])
app.conf.CELERY_ALWAYS_EAGER = True
try:
ts.apply_async()
finally:
app.conf.CELERY_ALWAYS_EAGER = False
self.assertEqual(ts.applied, 1)
def test_apply_async(self):
applied = [0]
class mocksubtask(Signature):
def apply_async(self, *args, **kwargs):
applied[0] += 1
ts = TaskSet([mocksubtask(MockTask, (i, i))
for i in (2, 4, 8)])
ts.apply_async()
self.assertEqual(applied[0], 3)
class Publisher(object):
def send(self, *args, **kwargs):
pass
ts.apply_async(publisher=Publisher())
# setting current_task
@current_app.task
def xyz():
pass
from celery.app.state import _tls
_tls.current_task = xyz
try:
ts.apply_async(publisher=Publisher())
finally:
_tls.current_task = None
xyz.request.clear()
def test_apply(self):
applied = [0]
class mocksubtask(Signature):
def apply(self, *args, **kwargs):
applied[0] += 1
ts = TaskSet([mocksubtask(MockTask, (i, i))
for i in (2, 4, 8)])
ts.apply()
self.assertEqual(applied[0], 3)
def test_set_app(self):
ts = TaskSet([])
ts.app = 42
self.assertEqual(ts.app, 42)
def test_set_tasks(self):
ts = TaskSet([])
ts.tasks = [1, 2, 3]
self.assertEqual(ts.data, [1, 2, 3])
def test_set_Publisher(self):
ts = TaskSet([])
ts.Publisher = 42
self.assertEqual(ts.Publisher, 42)