Testing recommendations - Google App Engine

Message from discussion Testing recommendations

ryan

More options Apr 9 2008, 7:17 pm

From: ryan <ryanb+appeng...@google.com>

Date: Wed, 9 Apr 2008 16:17:42 -0700 (PDT)

Local: Wed, Apr 9 2008 7:17 pm

Subject: Re: Testing recommendations

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Sure! Great question. Here's a snippet that will work with Python's
built-in unittest module. It should be easy to port to other unit test
frameworks. (Note the overlap with the SetupStubs() method in google/
appengine/tools/dev_appserver.py in the SDK.)

from google.appengine.api import apiproxy_stub_map
from google.appengine.api import datastore_file_stub
from google.appengine.api import mail_stub
from google3.apphosting.api import urlfetch_stub
from google3.apphosting.api import user_service_stub

APP_ID = u'test_app'
AUTH_DOMAIN = 'gmail.com'
LOGGED_IN_USER = 't...@example.com' # set to '' for no logged in user

class MyTest(unittest.TestCase):

def setUp(self):
# Ensure we're in UTC.
os.environ['TZ'] = 'UTC'
time.tzset()

# Start with a fresh api proxy.
apiproxy_stub_map.apiproxy = apiproxy_stub_map.APIProxyStubMap()

# Use a fresh stub datastore.
stub = datastore_file_stub.DatastoreFileStub(APP_ID, '/dev/null', '/
dev/null')
apiproxy_stub_map.apiproxy.RegisterStub('datastore_v3', stub)

# Use a fresh stub UserService.
apiproxy_stub_map.apiproxy.RegisterStub(
'user', user_service_stub.UserServiceStub())
os.environ['AUTH_DOMAIN'] = AUTH_DOMAIN
os.environ['USER_EMAIL'] = LOGGED_IN_USER

# Use a fresh urlfetch stub.
apiproxy_stub_map.apiproxy.RegisterStub(
'urlfetch', urlfetch_stub.URLFetchServiceStub())

# Use a fresh mail stub.
apiproxy_stub_map.apiproxy.RegisterStub(
'mail', mail_stub.MailServiceStub())

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