#coding: utf-8
from nose.plugins.skip import SkipTest

from mongoengine.python_support import PY3
from mongoengine import connect

try:
    from django.test import TestCase
    from django.conf import settings
except Exception as err:
    if PY3:
        from unittest import TestCase
        # Dummy value so no error
        class settings:
            MONGO_DATABASE_NAME = 'dummy'
    else:
        raise err


class MongoTestCase(TestCase):

    def setUp(self):
        if PY3:
            raise SkipTest('django does not have Python 3 support')

    """
    TestCase class that clear the collection between the tests
    """
    db_name = 'test_%s' % settings.MONGO_DATABASE_NAME
    def __init__(self, methodName='runtest'):
        self.db = connect(self.db_name).get_db()
        super(MongoTestCase, self).__init__(methodName)

    def _post_teardown(self):
        super(MongoTestCase, self)._post_teardown()
        for collection in self.db.collection_names():
            if collection == 'system.indexes':
                continue
            self.db.drop_collection(collection)