def failIfEqual(self, first, second, msg=None):
        if not first != second:
            raise self.failureException(msg or '%r == %r' % (first, second))
        return first
Test whether the slug is unique within a given time period.
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/trial/unittest.py/_Assertions.failIfEqual--crossover with--dataset/ETHPy150Open edoburu/django-fluent-blogs/fluent_blogs/admin/forms.py/AbstractEntryBaseAdminForm.validate_unique_slug