How to pass a modified or custom session while making request in testing flask applications?
Question
I have adopted the code from manual
http://flask.pocoo.org/docs/0.10/testing/#accessing-and-modifying-sessions
with app.test_client() as c:
with c.session_transaction() as sess:
sess['a_key'] = 'a value'
# once this is reached the session was stored
The core of my project that uses this approach is presented below.
Structure
- /testing_with_flask
- /test_project
- /templates
- index.html
- __init__.py
- /templates
- /requirements.py
- /run.py
- /test.py
- /test_project
Content of every file
requirements.txt
Flask
run.py
from test_project import create_app
app = create_app()
app.run(host='0.0.0.0', port=8080, debug=True)
test.py
from test_project import create_app
from unittest import TestCase as Base
class TestCase(Base):
@classmethod
def setUpClass(cls):
cls.app = create_app()
cls.app.config['TESTING'] = True
cls.client = cls.app.test_client()
cls._ctx = cls.app.test_request_context()
cls._ctx.push()
class TestModel(TestCase):
def test_adding_comments_logged_user(self):
with self.app.test_client() as c:
with c.session_transaction() as sess:
sess['user_id'] = 1
self.app.preprocess_request()
response = self.client.get('/')
assert 'Yahooo!!!' in response.data
if __name__ == "__main__":
import unittest
unittest.main()
__init__.py
# Main init file.
from flask import Flask, render_template, g, session
DEBUG = False
TESTING = False
SECRET_KEY = "jd&%G#43WG~dn6"
SITE_TITLE = "TEST"
def index():
return render_template('index.html', user=g.user)
def load_user():
if 'user_id' not in session.keys():
g.user = 'None'
else:
g.user = 'Yahooo!!!'
def create_app():
app = Flask(__name__)
app.config.from_object(__name__)
app.before_request(load_user)
app.add_url_rule('/', 'index', index)
return app
index.html
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>I Need Help</title>
</head>
<body>
{{ user }}
</body>
</html>
Unfortunately, I can't get the value 'Yahooo!!!' of the variable g.user . I can not get 'else' branch of 'if' statement of the function load_user running test.py .
1 answers
solution1
0 ACCPTED 2015-06-17 21:12:19
The solution is based on the code presented in similar question:
How to test session in flask resource
Instead of line
with self.app.test_client() as c:
in 'test.py' I should write
with self.client as c:
However, I still don't understand these lines difference.
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