appengine_unittests.py

# Unit testing for AppEngine
import os
import sys
import unittest

# Path to AppEngine library (platform specific) 
SDK_PATH = os.path.realpath('/usr/local/google_appengine/')
 
EXTRA_PATHS = [
    SDK_PATH,
    os.path.join(SDK_PATH, 'lib', 'antlr3'),
    os.path.join(SDK_PATH, 'lib', 'django'),
    os.path.join(SDK_PATH, 'lib', 'webob'),
    os.path.join(SDK_PATH, 'lib', 'yaml', 'lib'),
]
 
sys.path = sys.path[0:1] + EXTRA_PATHS + sys.path[1:]
 
#import the stubs, i.e. the fake datastore, user and mail service and urlfetch
from google.appengine.api import apiproxy_stub_map
from google.appengine.api import datastore_file_stub
from google.appengine.api import mail_stub
from google.appengine.api import urlfetch_stub
from google.appengine.api import user_service_stub
from google.appengine.api import users
from google.appengine.api.memcache import memcache_stub

# Import Werkzeug WSGI test client and response wrapper 
from werkzeug import Client, BaseResponse

        
class GAETestCase(unittest.TestCase):
    """ Base class that sets up the environment
    
    """
    def setUp(self):
        # Start with a fresh api proxy.
        apiproxy_stub_map.apiproxy = apiproxy_stub_map.APIProxyStubMap()
        
        # Use a fresh stub datastore.
        # From this point on in the tests, all calls to the Data Store, such as get and put,
        # will be to the temporary, in-memory datastore stub. 
        stub = datastore_file_stub.DatastoreFileStub(u'testapp',
                                                     '/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'] = 'gmail.com'
        os.environ['USER_EMAIL'] = 'testuser@example.com' # set to '' for no logged in user 
        os.environ['SERVER_NAME'] = 'example.com' 
        os.environ['SERVER_PORT'] = '9999'
        os.environ['SERVER_SOFTWARE'] = 'Dev' 
        os.environ['APPLICATION_ID'] = 'testapp'
        os.environ['CURRENT_VERSION_ID'] = '1'
                
        # 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())
        
        # Use a fresh mail stub.
        apiproxy_stub_map.apiproxy.RegisterStub('memcache', memcache_stub.MemcacheServiceStub()) 
        
        # Import and create WSGI application
        from main import Application
        from utils import local
        self.app = Application()
        self.local = local
        
 
class TestWSGI(GAETestCase):
    """ Tests of the WSGI framework
    
    """
    def test_wsgi_app(self):
        c = Client(self.app, BaseResponse)
        resp = c.get('/')
        self.assertEquals(resp.status_code, 200)
        
    def test_test_user(self):
        user = users.get_current_user()
        self.assertEquals(user, users.User('testuser@example.com'))
 
 
if __name__ == "__main__":
    unittest.main()