Flask Unittest for Post Method
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Here an example which can help you to understand. Our application - app.py:
import httplib
import json
from flask import Flask, request, Response
app = Flask(__name__)
@app.route('/', methods=['POST'])
def main():
url = request.form.get('return_url')
# just example. will return value of sent return_url
return Response(
response=json.dumps({'return_url': url}),
status=httplib.OK,
mimetype='application/json'
)
Our tests - test_api.py:
import json
import unittest
from app import app
# set our application to testing mode
app.testing = True
class TestApi(unittest.TestCase):
def test_main(self):
with app.test_client() as client:
# send data as POST form to endpoint
sent = {'return_url': 'my_test_url'}
result = client.post(
'/',
data=sent
)
# check result from server with expected data
self.assertEqual(
result.data,
json.dumps(sent)
)
How to run:
python -m unittest discover -p path_to_test_api.py
Result:
----------------------------------------------------------------------
Ran 1 test in 0.009s
OK
Hope it helps.
Author by
Tuan Pham
Struggle with school's assignments at day. Work hard as a programmer at night for web and mobile development. Robotics, physics, and astronomy as hobbies. Believe in doing just what have been being given is doing nothing.
Updated on June 17, 2022Comments
-
Tuan Pham almost 2 years
I am writing a Flask unit test for a function that would return a render template. I tried few ways but it seems not working. Here is the function:
@app.route('/', methods=['POST']) @lti(request='initial', error=error, app=app) def chooser(lti=lti): return_url = request.form.get('launch_presentation_return_url', '#') return render_template( 'chooser.html' )Few ways that I have been trying:
# 1st way rv = self.app.post('/') self.assertTrue('Choose an Icon to Insert' in rv.get_data(as_text=True)) # Error self.assertTrue('Choose an Icon to Insert' in rv.get_data(as_text=True)) AssertionError: False is not true # 2nd way rv = self.app.post('/chooser.html') assert '<h1>Choose an Icon to Insert</h1>' in rv.data # Error assert 'Choose an Icon to Insert' in rv.data AssertionErrorchooser.html
<body> <h1>Choose an Icon to Insert</h1> </body>Thanks for all your helps.