Frequently got ``TransactionManagementError``

[gregmuellegger]

Frequently got ``TransactionManagementError``

[gregmuellegger]

It's hard to tell without any further context. I sometimes get this error message for the first query of all following tests if one previous test fails. So this might not be a problem with django-autofixture, but surfacing there since autofixture might be the first library that executes a query in your test.

Can you try to run the tests just with one single test case and see if the traceback is more meaningful?

[kxxoling]

@gregmuellegger I go this error several times, usually there's no error with my tests. I run tests with django-nose, related configs are:

# django-nose
TEST_RUNNER = 'django_nose.NoseTestSuiteRunner'
NOSE_ARGS = ['--with-spec', '--spec-color']

In my base test class, I defined some serUpClass code and tearDownClass code which might matter:

class BaseTestCase(TestCase):
    @classmethod
    def setUpClass(cls):
        super(BaseTestCase, cls).setUpClass()

        for model in cls.models:
            AutoFixture(model).create(10)

    @classmethod
    def tearDownClass(cls):
        for model in cls.models:
            model.objects.all().delete()
        super(ManagerCase, cls).tearDownClass()

BTW, I'm using django 1.8.11 and django_nose 1.4.3 and autofixture 0.12.0.

[gregmuellegger]

Can you reproduce the same error if you run only one testcase?

[kxxoling]

@gregmuellegger Sorry I cannot, it frequently that time, but be rarely later. And I haven't seen for a long time now. When I comes, I just need to rerun the tests again or twice, it would disappear.

But I almost not change my tests, only add a few new tests sometime.

[gregmuellegger]

Hm, randomly failing tests are a strange thing. Let's see if it comes back :) all thumbs pressed.

[kxxoling]

Yeah, and hard to debug. Maybe there's some race or database destroying issue, i guess.