running this test ensures that the lockunlock functions have passed running this test ensures that the lock unlock functions have passed
from django.test import SimpleTestCase
from django.test.testcases import SerializeMixin


class TestSerializeMixin(SimpleTestCase):
    def test_init_without_lockfile(self):
        msg = (
            "ExampleTests.lockfile isn't set. Set it to a unique value in the "
            "base class."
        )
        with self.assertRaisesMessage(ValueError, msg):

            class ExampleTests(SerializeMixin, SimpleTestCase):
                pass


class TestSerializeMixinUse(SerializeMixin, SimpleTestCase):
    lockfile = __file__

    def test_usage(self):
        
        pass