/usr/lib/python2.7/dist-packages/celery/tests/tasks/test_canvas.py is in python-celery 3.1.20-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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from celery.canvas import (
Signature,
chain,
group,
chord,
signature,
xmap,
xstarmap,
chunks,
_maybe_group,
maybe_signature,
)
from celery.result import EagerResult
from celery.tests.case import AppCase, Mock
SIG = Signature({'task': 'TASK',
'args': ('A1', ),
'kwargs': {'K1': 'V1'},
'options': {'task_id': 'TASK_ID'},
'subtask_type': ''})
class CanvasCase(AppCase):
def setup(self):
@self.app.task(shared=False)
def add(x, y):
return x + y
self.add = add
@self.app.task(shared=False)
def mul(x, y):
return x * y
self.mul = mul
@self.app.task(shared=False)
def div(x, y):
return x / y
self.div = div
class test_Signature(CanvasCase):
def test_getitem_property_class(self):
self.assertTrue(Signature.task)
self.assertTrue(Signature.args)
self.assertTrue(Signature.kwargs)
self.assertTrue(Signature.options)
self.assertTrue(Signature.subtask_type)
def test_getitem_property(self):
self.assertEqual(SIG.task, 'TASK')
self.assertEqual(SIG.args, ('A1', ))
self.assertEqual(SIG.kwargs, {'K1': 'V1'})
self.assertEqual(SIG.options, {'task_id': 'TASK_ID'})
self.assertEqual(SIG.subtask_type, '')
def test_link_on_scalar(self):
x = Signature('TASK', link=Signature('B'))
self.assertTrue(x.options['link'])
x.link(Signature('C'))
self.assertIsInstance(x.options['link'], list)
self.assertIn(Signature('B'), x.options['link'])
self.assertIn(Signature('C'), x.options['link'])
def test_replace(self):
x = Signature('TASK', ('A'), {})
self.assertTupleEqual(x.replace(args=('B', )).args, ('B', ))
self.assertDictEqual(
x.replace(kwargs={'FOO': 'BAR'}).kwargs,
{'FOO': 'BAR'},
)
self.assertDictEqual(
x.replace(options={'task_id': '123'}).options,
{'task_id': '123'},
)
def test_set(self):
self.assertDictEqual(
Signature('TASK', x=1).set(task_id='2').options,
{'x': 1, 'task_id': '2'},
)
def test_link(self):
x = signature(SIG)
x.link(SIG)
x.link(SIG)
self.assertIn(SIG, x.options['link'])
self.assertEqual(len(x.options['link']), 1)
def test_link_error(self):
x = signature(SIG)
x.link_error(SIG)
x.link_error(SIG)
self.assertIn(SIG, x.options['link_error'])
self.assertEqual(len(x.options['link_error']), 1)
def test_flatten_links(self):
tasks = [self.add.s(2, 2), self.mul.s(4), self.div.s(2)]
tasks[0].link(tasks[1])
tasks[1].link(tasks[2])
self.assertEqual(tasks[0].flatten_links(), tasks)
def test_OR(self):
x = self.add.s(2, 2) | self.mul.s(4)
self.assertIsInstance(x, chain)
y = self.add.s(4, 4) | self.div.s(2)
z = x | y
self.assertIsInstance(y, chain)
self.assertIsInstance(z, chain)
self.assertEqual(len(z.tasks), 4)
with self.assertRaises(TypeError):
x | 10
ax = self.add.s(2, 2) | (self.add.s(4) | self.add.s(8))
self.assertIsInstance(ax, chain)
self.assertEqual(len(ax.tasks), 3, 'consolidates chain to chain')
def test_INVERT(self):
x = self.add.s(2, 2)
x.apply_async = Mock()
x.apply_async.return_value = Mock()
x.apply_async.return_value.get = Mock()
x.apply_async.return_value.get.return_value = 4
self.assertEqual(~x, 4)
self.assertTrue(x.apply_async.called)
def test_merge_immutable(self):
x = self.add.si(2, 2, foo=1)
args, kwargs, options = x._merge((4, ), {'bar': 2}, {'task_id': 3})
self.assertTupleEqual(args, (2, 2))
self.assertDictEqual(kwargs, {'foo': 1})
self.assertDictEqual(options, {'task_id': 3})
def test_set_immutable(self):
x = self.add.s(2, 2)
self.assertFalse(x.immutable)
x.set(immutable=True)
self.assertTrue(x.immutable)
x.set(immutable=False)
self.assertFalse(x.immutable)
def test_election(self):
x = self.add.s(2, 2)
x.freeze('foo')
x.type.app.control = Mock()
r = x.election()
self.assertTrue(x.type.app.control.election.called)
self.assertEqual(r.id, 'foo')
def test_AsyncResult_when_not_registered(self):
s = signature('xxx.not.registered', app=self.app)
self.assertTrue(s.AsyncResult)
def test_apply_async_when_not_registered(self):
s = signature('xxx.not.registered', app=self.app)
self.assertTrue(s._apply_async)
class test_xmap_xstarmap(CanvasCase):
def test_apply(self):
for type, attr in [(xmap, 'map'), (xstarmap, 'starmap')]:
args = [(i, i) for i in range(10)]
s = getattr(self.add, attr)(args)
s.type = Mock()
s.apply_async(foo=1)
s.type.apply_async.assert_called_with(
(), {'task': self.add.s(), 'it': args}, foo=1,
)
self.assertEqual(type.from_dict(dict(s)), s)
self.assertTrue(repr(s))
class test_chunks(CanvasCase):
def test_chunks(self):
x = self.add.chunks(range(100), 10)
self.assertEqual(
dict(chunks.from_dict(dict(x), app=self.app)), dict(x),
)
self.assertTrue(x.group())
self.assertEqual(len(x.group().tasks), 10)
x.group = Mock()
gr = x.group.return_value = Mock()
x.apply_async()
gr.apply_async.assert_called_with((), {})
x()
gr.assert_called_with()
self.app.conf.CELERY_ALWAYS_EAGER = True
chunks.apply_chunks(app=self.app, **x['kwargs'])
class test_chain(CanvasCase):
def test_repr(self):
x = self.add.s(2, 2) | self.add.s(2)
self.assertEqual(
repr(x), '%s(2, 2) | %s(2)' % (self.add.name, self.add.name),
)
def test_reverse(self):
x = self.add.s(2, 2) | self.add.s(2)
self.assertIsInstance(signature(x), chain)
self.assertIsInstance(signature(dict(x)), chain)
def test_always_eager(self):
self.app.conf.CELERY_ALWAYS_EAGER = True
self.assertEqual(~(self.add.s(4, 4) | self.add.s(8)), 16)
def test_apply(self):
x = chain(self.add.s(4, 4), self.add.s(8), self.add.s(10))
res = x.apply()
self.assertIsInstance(res, EagerResult)
self.assertEqual(res.get(), 26)
self.assertEqual(res.parent.get(), 16)
self.assertEqual(res.parent.parent.get(), 8)
self.assertIsNone(res.parent.parent.parent)
def test_empty_chain_returns_none(self):
self.assertIsNone(chain(app=self.app)())
self.assertIsNone(chain(app=self.app).apply_async())
def test_call_no_tasks(self):
x = chain()
self.assertFalse(x())
def test_call_with_tasks(self):
x = self.add.s(2, 2) | self.add.s(4)
x.apply_async = Mock()
x(2, 2, foo=1)
x.apply_async.assert_called_with((2, 2), {'foo': 1})
def test_from_dict_no_args__with_args(self):
x = dict(self.add.s(2, 2) | self.add.s(4))
x['args'] = None
self.assertIsInstance(chain.from_dict(x), chain)
x['args'] = (2, )
self.assertIsInstance(chain.from_dict(x), chain)
def test_accepts_generator_argument(self):
x = chain(self.add.s(i) for i in range(10))
self.assertTrue(x.tasks[0].type, self.add)
self.assertTrue(x.type)
class test_group(CanvasCase):
def test_repr(self):
x = group([self.add.s(2, 2), self.add.s(4, 4)])
self.assertEqual(repr(x), repr(x.tasks))
def test_reverse(self):
x = group([self.add.s(2, 2), self.add.s(4, 4)])
self.assertIsInstance(signature(x), group)
self.assertIsInstance(signature(dict(x)), group)
def test_maybe_group_sig(self):
self.assertListEqual(
_maybe_group(self.add.s(2, 2)), [self.add.s(2, 2)],
)
def test_from_dict(self):
x = group([self.add.s(2, 2), self.add.s(4, 4)])
x['args'] = (2, 2)
self.assertTrue(group.from_dict(dict(x)))
x['args'] = None
self.assertTrue(group.from_dict(dict(x)))
def test_call_empty_group(self):
x = group(app=self.app)
self.assertFalse(len(x()))
x.delay()
x.apply_async()
x()
def test_skew(self):
g = group([self.add.s(i, i) for i in range(10)])
g.skew(start=1, stop=10, step=1)
for i, task in enumerate(g.tasks):
self.assertEqual(task.options['countdown'], i + 1)
def test_iter(self):
g = group([self.add.s(i, i) for i in range(10)])
self.assertListEqual(list(iter(g)), g.tasks)
class test_chord(CanvasCase):
def test_reverse(self):
x = chord([self.add.s(2, 2), self.add.s(4, 4)], body=self.mul.s(4))
self.assertIsInstance(signature(x), chord)
self.assertIsInstance(signature(dict(x)), chord)
def test_clone_clones_body(self):
x = chord([self.add.s(2, 2), self.add.s(4, 4)], body=self.mul.s(4))
y = x.clone()
self.assertIsNot(x.kwargs['body'], y.kwargs['body'])
y.kwargs.pop('body')
z = y.clone()
self.assertIsNone(z.kwargs.get('body'))
def test_links_to_body(self):
x = chord([self.add.s(2, 2), self.add.s(4, 4)], body=self.mul.s(4))
x.link(self.div.s(2))
self.assertFalse(x.options.get('link'))
self.assertTrue(x.kwargs['body'].options['link'])
x.link_error(self.div.s(2))
self.assertFalse(x.options.get('link_error'))
self.assertTrue(x.kwargs['body'].options['link_error'])
self.assertTrue(x.tasks)
self.assertTrue(x.body)
def test_repr(self):
x = chord([self.add.s(2, 2), self.add.s(4, 4)], body=self.mul.s(4))
self.assertTrue(repr(x))
x.kwargs['body'] = None
self.assertIn('without body', repr(x))
class test_maybe_signature(CanvasCase):
def test_is_None(self):
self.assertIsNone(maybe_signature(None, app=self.app))
def test_is_dict(self):
self.assertIsInstance(
maybe_signature(dict(self.add.s()), app=self.app), Signature,
)
def test_when_sig(self):
s = self.add.s()
self.assertIs(maybe_signature(s, app=self.app), s)
|