Files
edx-platform/cms/djangoapps/contentstore/tests/utils.py
2013-03-29 10:41:27 -04:00

125 lines
3.6 KiB
Python

'''
Utilities for contentstore tests
'''
#pylint: disable=W0603
import json
import copy
from uuid import uuid4
from django.test import TestCase
from django.conf import settings
from student.models import Registration
from django.contrib.auth.models import User
import xmodule.modulestore.django
from xmodule.templates import update_templates
class ModuleStoreTestCase(TestCase):
""" Subclass for any test case that uses the mongodb
module store. This populates a uniquely named modulestore
collection with templates before running the TestCase
and drops it they are finished. """
@staticmethod
def flush_mongo_except_templates():
'''
Delete everything in the module store except templates
'''
modulestore = xmodule.modulestore.django.modulestore()
# This query means: every item in the collection
# that is not a template
query = {"_id.course": {"$ne": "templates"}}
# Remove everything except templates
modulestore.collection.remove(query)
@staticmethod
def load_templates_if_necessary():
'''
Load templates into the modulestore only if they do not already exist.
We need the templates, because they are copied to create
XModules such as sections and problems
'''
modulestore = xmodule.modulestore.django.modulestore()
# Count the number of templates
query = {"_id.course": "templates"}
num_templates = modulestore.collection.find(query).count()
if num_templates < 1:
update_templates()
@classmethod
def setUpClass(cls):
'''
Flush the mongo store and set up templates
'''
# Use a uuid to differentiate
# the mongo collections on jenkins.
cls.orig_modulestore = copy.deepcopy(settings.MODULESTORE)
test_modulestore = cls.orig_modulestore
test_modulestore['default']['OPTIONS']['collection'] = 'modulestore_%s' % uuid4().hex
test_modulestore['direct']['OPTIONS']['collection'] = 'modulestore_%s' % uuid4().hex
xmodule.modulestore.django._MODULESTORES = {}
settings.MODULESTORE = test_modulestore
TestCase.setUpClass()
@classmethod
def tearDownClass(cls):
'''
Revert to the old modulestore settings
'''
# Clean up by dropping the collection
modulestore = xmodule.modulestore.django.modulestore()
modulestore.collection.drop()
# Restore the original modulestore settings
settings.MODULESTORE = cls.orig_modulestore
def _pre_setup(self):
'''
Remove everything but the templates before each test
'''
# Flush anything that is not a template
ModuleStoreTestCase.flush_mongo_except_templates()
# Check that we have templates loaded; if not, load them
ModuleStoreTestCase.load_templates_if_necessary()
# Call superclass implementation
super(ModuleStoreTestCase, self)._pre_setup()
def _post_teardown(self):
'''
Flush everything we created except the templates
'''
# Flush anything that is not a template
ModuleStoreTestCase.flush_mongo_except_templates()
# Call superclass implementation
super(ModuleStoreTestCase, self)._post_teardown()
def parse_json(response):
"""Parse response, which is assumed to be json"""
return json.loads(response.content)
def user(email):
"""look up a user by email"""
return User.objects.get(email=email)
def registration(email):
"""look up registration object by email"""
return Registration.objects.get(user__email=email)