Task with dict in arguments sometimes didn't started, but marked as locked. about django-background-tasks HOT 1 CLOSED

class ArgumentsWithDictTestCase(unittest.TestCase):
    def setUp(self):
        @tasks.background(name='failing task')
        def task(d):
            pass
        self.task = task

    def test_task_with_dictionary_in_args(self):
        self.assertEqual(Task.objects.count(), 0)

        d = {random.randint(1,1000):random.randint(1,1000) for _ in range(random.randint(1,10))}
        self.task(d)
        self.assertEqual(Task.objects.count(), 1, 'Task dont created')

        tasks.run_next_task()
        self.assertEqual(Task.objects.count(), 0, 'Task dont started')

======================================================================
FAIL: test_task_with_dictionary_in_args (background_task.tests.task_tests.ArgumentsWithDictTestCase)
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Traceback (most recent call last):
  File "C:\Users\pavel\Projects\django-background-tasks\background_task\tests\task_tests.py", line 562, in test_task_with_dictionary_in_args
    self.assertEqual(Task.objects.count(), 0, 'Task dont started')
nose.proxy.AssertionError: 1 != 0 : Task dont started
-------------------- >> begin captured logging << --------------------