child_exception raised

[antonioj-mattos]

When executing my test code a exception is thrown. I have searched the web for some information that could help but without success.

The models are a bit complex so I have used a factory (code ommited), but I don't think it is relevant to the problem. Anyway, if required I can create a mininal reproducible code.

The tests are run inside a Docker container.

Docker version 17.03.1-ce, build c6d412e
Python 2.7.13

Django==1.9.2
django-concurrent-test-helper==0.2.9
psycopg2==2.5.1

The command I used. Not clear if I have to do anything different here.

python manage.py test --settings=protocolo.test_settings protocolo.tests.TestesConcorrenciaProcesso

Exception in thread Thread-44:
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/threading.py", line 801, in __bootstrap_inner
    self.run()
  File "/usr/local/lib/python2.7/threading.py", line 754, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/local/lib/python2.7/site-packages/django_concurrent_tests/utils.py", line 44, in target
    stderr=subprocess.PIPE,
  File "/usr/local/lib/python2.7/subprocess.py", line 390, in __init__
    errread, errwrite)
  File "/usr/local/lib/python2.7/subprocess.py", line 1024, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory

Test code:

def obteve_successo(result):
    return result is True and not isinstance(result, Exception)

def criar_processo(setor=None):
    return ProcessoFactory(setor_origem=setor)

class TestesConcorrenciaProcesso(TransactionTestCase):

    def test_criar_processos_concorrentemente(self):
        setor = SetorFactory()
        processos = call_concurrently(20, criar_processo, setor=setor)

        sucesso = all(map(obteve_successo, processos))
        self.assertTrue(sucesso)

I'd appreciate any help.

[anentropic]

Hi

we have this code:

            cmd = [
                getattr(settings, 'MANAGE_PY_PATH', 'manage.py'),
                'concurrent_call_wrapper',
                function_path,
                '--kwargs=%s' % serialized_kwargs,
            ]

this means your manage.py file needs to be executable, with the #!/usr/bin/env python line at the top

otherwise in your settings.py file you need to set

MANAGE_PY_PATH = 'python manage.py`

[antonioj-mattos]

Got it. Thank you very much.