flask test client post does not create object in database - flask

Question

The following test code does not pass even though manually submitting the form on my web interface actually does work.
import os
from flask.ext.testing import TestCase
from flask import url_for
from config import _basedir
from app import app, db
from app.users.models import User
class TestUser(TestCase):
def create_app(self):
"""
Required method. Always implement this so that app is returned with context.
"""
app.config['TESTING'] = True
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///' + os.path.join(_basedir, 'test.db')
app.config['WTF_CSRF_ENABLED'] = False # This must be disabled for post to succeed during tests
self.client = app.test_client()
ctx = app.app_context()
ctx.push()
return app
def setUp(self):
db.create_all()
#pass
#app.teardown_appcontext
def tearDown(self):
db.session.remove()
db.drop_all()
#pass
def test_admin_home(self):
# url is the admin home page
url = url_for('admin.index')
resp = self.client.get(url)
self.assertTrue(resp.status_code == 200)
def test_admin_registration(self):
url = url_for('admin.register_view')
data = {'username': 'admin', 'email': 'admin#example.com', 'password': 'admin'}
resp = self.client.post(url, data)
self.assertTrue(resp.status_code == 200)
u = User.query.filter_by(username=u'admin').first()
self.assertTrue(u.username == 'admin') # <----- This fails. Why?
After the test client has post to the register_view url and returns a 200 OK response, I fail to retrieve the 'admin' user from the test database. Why is this so?
Here's the view code (this is a flask admin view)
from flask import request
from flask.ext.admin import expose, AdminIndexView, helpers
from app.auth.forms import LoginForm, RegistrationForm
from app.users.models import User
from app import db
class MyAdminIndexView(AdminIndexView):
#expose('/', methods=('GET', 'POST'))
def index(self):
# handle user login
form = LoginForm(request.form)
self._template_args['form'] = form
return super(MyAdminIndexView, self).index()
#expose('/register/', methods=('GET', 'POST'))
def register_view(self):
# handle user registration
form = RegistrationForm(request.form)
if helpers.validate_form_on_submit(form):
user = User()
form.populate_obj(user)
db.session.add(user)
db.session.commit()
self._template_args['form'] = form
return super(MyAdminIndexView, self).index()

Answer 1

Dumbest mistake ever.
The offending line in my test code is
resp = self.client.post(url, data)
It should be
resp = self.client.post(url, data=data)
I managed to track it down by painstakingly walking through the logic and inserting ipdb.set_trace() step by step until I found the bad POST request made by my client.