/usr/lib/python2.7/dist-packages/celery/tests/tasks/test_trace.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 import uuid
from celery import signals
from celery import states
from celery.exceptions import Ignore, Retry
from celery.app.trace import (
TraceInfo,
eager_trace_task,
trace_task,
setup_worker_optimizations,
reset_worker_optimizations,
)
from celery.tests.case import AppCase, Mock, patch
def trace(app, task, args=(), kwargs={}, propagate=False, **opts):
return eager_trace_task(task, 'id-1', args, kwargs,
propagate=propagate, app=app, **opts)
class TraceCase(AppCase):
def setup(self):
@self.app.task(shared=False)
def add(x, y):
return x + y
self.add = add
@self.app.task(shared=False, ignore_result=True)
def add_cast(x, y):
return x + y
self.add_cast = add_cast
@self.app.task(shared=False)
def raises(exc):
raise exc
self.raises = raises
def trace(self, *args, **kwargs):
return trace(self.app, *args, **kwargs)
class test_trace(TraceCase):
def test_trace_successful(self):
retval, info = self.trace(self.add, (2, 2), {})
self.assertIsNone(info)
self.assertEqual(retval, 4)
def test_trace_on_success(self):
@self.app.task(shared=False, on_success=Mock())
def add_with_success(x, y):
return x + y
self.trace(add_with_success, (2, 2), {})
self.assertTrue(add_with_success.on_success.called)
def test_trace_after_return(self):
@self.app.task(shared=False, after_return=Mock())
def add_with_after_return(x, y):
return x + y
self.trace(add_with_after_return, (2, 2), {})
self.assertTrue(add_with_after_return.after_return.called)
def test_with_prerun_receivers(self):
on_prerun = Mock()
signals.task_prerun.connect(on_prerun)
try:
self.trace(self.add, (2, 2), {})
self.assertTrue(on_prerun.called)
finally:
signals.task_prerun.receivers[:] = []
def test_with_postrun_receivers(self):
on_postrun = Mock()
signals.task_postrun.connect(on_postrun)
try:
self.trace(self.add, (2, 2), {})
self.assertTrue(on_postrun.called)
finally:
signals.task_postrun.receivers[:] = []
def test_with_success_receivers(self):
on_success = Mock()
signals.task_success.connect(on_success)
try:
self.trace(self.add, (2, 2), {})
self.assertTrue(on_success.called)
finally:
signals.task_success.receivers[:] = []
def test_multiple_callbacks(self):
"""
Regression test on trace with multiple callbacks
Uses the signature of the following canvas:
chain(
empty.subtask(link=empty.subtask()),
group(empty.subtask(), empty.subtask())
)
"""
@self.app.task(shared=False)
def empty(*args, **kwargs):
pass
empty.backend = Mock()
sig = {
'chord_size': None, 'task': 'empty', 'args': (), 'options': {},
'subtask_type': None, 'kwargs': {}, 'immutable': False
}
group_sig = {
'chord_size': None, 'task': 'celery.group', 'args': (),
'options': {}, 'subtask_type': 'group',
'kwargs': {'tasks': (empty(), empty())}, 'immutable': False
}
callbacks = [sig, group_sig]
# should not raise an exception
self.trace(empty, [], {}, request={'callbacks': callbacks})
def test_when_chord_part(self):
@self.app.task(shared=False)
def add(x, y):
return x + y
add.backend = Mock()
self.trace(add, (2, 2), {}, request={'chord': uuid()})
add.backend.on_chord_part_return.assert_called_with(add, 'SUCCESS', 4)
def test_when_backend_cleanup_raises(self):
@self.app.task(shared=False)
def add(x, y):
return x + y
add.backend = Mock(name='backend')
add.backend.process_cleanup.side_effect = KeyError()
self.trace(add, (2, 2), {}, eager=False)
add.backend.process_cleanup.assert_called_with()
add.backend.process_cleanup.side_effect = MemoryError()
with self.assertRaises(MemoryError):
self.trace(add, (2, 2), {}, eager=False)
def test_when_Ignore(self):
@self.app.task(shared=False)
def ignored():
raise Ignore()
retval, info = self.trace(ignored, (), {})
self.assertEqual(info.state, states.IGNORED)
def test_trace_SystemExit(self):
with self.assertRaises(SystemExit):
self.trace(self.raises, (SystemExit(), ), {})
def test_trace_Retry(self):
exc = Retry('foo', 'bar')
_, info = self.trace(self.raises, (exc, ), {})
self.assertEqual(info.state, states.RETRY)
self.assertIs(info.retval, exc)
def test_trace_exception(self):
exc = KeyError('foo')
_, info = self.trace(self.raises, (exc, ), {})
self.assertEqual(info.state, states.FAILURE)
self.assertIs(info.retval, exc)
def test_trace_exception_propagate(self):
with self.assertRaises(KeyError):
self.trace(self.raises, (KeyError('foo'), ), {}, propagate=True)
@patch('celery.app.trace.build_tracer')
@patch('celery.app.trace.report_internal_error')
def test_outside_body_error(self, report_internal_error, build_tracer):
tracer = Mock()
tracer.side_effect = KeyError('foo')
build_tracer.return_value = tracer
@self.app.task(shared=False)
def xtask():
pass
trace_task(xtask, 'uuid', (), {})
self.assertTrue(report_internal_error.call_count)
self.assertIs(xtask.__trace__, tracer)
class test_TraceInfo(TraceCase):
class TI(TraceInfo):
__slots__ = TraceInfo.__slots__ + ('__dict__', )
def test_handle_error_state(self):
x = self.TI(states.FAILURE)
x.handle_failure = Mock()
x.handle_error_state(self.add_cast)
x.handle_failure.assert_called_with(
self.add_cast,
store_errors=self.add_cast.store_errors_even_if_ignored,
)
class test_stackprotection(AppCase):
def test_stackprotection(self):
setup_worker_optimizations(self.app)
try:
@self.app.task(shared=False, bind=True)
def foo(self, i):
if i:
return foo(0)
return self.request
self.assertTrue(foo(1).called_directly)
finally:
reset_worker_optimizations()
|