Package: pytest_gae
pytest_gaeIt ispytestplugin that helps You to test
applications written with Google’sAppEngine.Options–with-gae: Turns on this plugin–gae-path: AppEngine’s root (defaultgoogle_appengine)–gae-project-path: Your project’s root (default./)LimitationPlugin does not prevent You from using code/modules that AppEngine’s
environment refuse to execute. So, You can easily do something like that:import socket
import numpyAnd tests just pass. But You can not run this code on AppEngine environment,
because of sandboxing. See:AppEngine DocsThis plugin uses internal AppEngine’s code and there is no guarantee that
Google is not going to change it.OthersThis project was inspired by nose-gae plugin for nosehttp://code.google.com/p/nose-gae/Usage exampleLet assume we have a directory that looks something like that./
|-- gae               # AppEngine's root
|   |-- ...
|-- src               # Your project's root
|   |-- app.yaml
|   |-- index.yaml
|   |-- main.py
|-- tests             # Tests' dir
    |-- test_handlers.py
    |-- test_models.pymain.py:#!/usr/bin/env python
from google.appengine.ext import webapp
from google.appengine.ext.webapp import util
from google.appengine.ext.webapp.util import login_required
from google.appengine.api import users
from google.appengine.ext import db


class MyModel(db.Model):
    my_field = db.StringProperty(required=False)


class IndexHandler(webapp.RequestHandler):
    def get(self):
        self.response.out.write('Index')


class UsersHandler(webapp.RequestHandler):

    @login_required
    def get(self):
        if users.is_current_user_admin():
            self.response.out.write('Admin')
        else:
            self.response.out.write('User')


def make_application():
    return webapp.WSGIApplication([('/index', IndexHandler),
                                   ('/users', UsersHandler)], debug=True)


def main():
    application = make_application()
    util.run_wsgi_app(application)


if __name__ == '__main__':
    main()Testing modelstest_models.py:from google.appengine.ext import db
import pytest

from main import MyModel


def test_basic():
    m = MyModel(my_field='Foo')
    assert 'Foo' == m.my_field


def test_new_model():
    m = MyModel(my_field='Foo')
    pytest.raises(db.NotSavedError, lambda: m.key())


def test_saved_model():
    m = MyModel(my_field='Foo')
    m.put()
    assert m.key()Using with WebTestWe could test our handlers with the help ofWebTestlibrary.We would create three funcargs’ functions that allows us to test application:From anonymous user perspectiveFrom authorized user perspectiveFrom admin perspectiveWe could do that by alteringos.enviromenttest_handlers.py:import os

from webtest import TestApp
from main import make_application


def pytest_funcarg__anon_app(request):
    os.environ.update({'USER_EMAIL': '',
                       'USER_ID': '',
                       'AUTH_DOMAIN': 'google',
                       'USER_IS_ADMIN': '0'})
    return TestApp(make_application())


def pytest_funcarg__user_app(request):
    os.environ.update({'USER_EMAIL': 'simple@google.com',
                       'USER_ID': '1',
                       'AUTH_DOMAIN': 'google',
                       'USER_IS_ADMIN': '0'})
    return TestApp(make_application())


def pytest_funcarg__admin_app(request):
    os.environ.update({'USER_EMAIL': 'admin@google.com',
                       'USER_ID': '2',
                       'AUTH_DOMAIN': 'google',
                       'USER_IS_ADMIN': '1'})
    return TestApp(make_application())


def test_index(anon_app):
    assert "Index" in anon_app.get('/index')


def test_user_with_user(user_app):
    assert "User" in user_app.get('/users')


def test_user_with_anon(anon_app):
    assert '302 Moved Temporarily' == anon_app.get('/users').status


def test_user_with_admin(admin_app):
    assert "Admin" in admin_app.get('/users')Runningpy.test tests --with-gae --gae-path=gae --gae-project-path=./src/ :
platform linux2 -- Python 2.7.12, pytest-2.9.2, py-1.4.31, pluggy-0.3.1
collected 7 items

tests/test_handlers.py ....
tests/test_models.py ...

============ 7 passed in 0.64 seconds ============