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======================
Flask Test Integration
======================
Integrating your `Flask`_ application with :pypi:`behave` is done via
boilerplate code in your ``environment.py`` file.
The `Flask documentation on testing`_ explains how to use the Werkzeug test
client for running tests in general.
.. _Flask: http://flask.pocoo.org/
.. _Flask documentation on testing: http://flask.pocoo.org/docs/latest/testing/
Integration Example
===================
The example below is an integration boilerplate derived from the official
Flask documentation, featuring the `Flaskr sample application`_ from the Flask
tutorial.
.. code-block:: python
# -- FILE: features/environment.py
import os
import tempfile
from behave import fixture, use_fixture
# flaskr is the sample application we want to test
from flaskr import app, init_db
@fixture
def flaskr_client(context, *args, **kwargs):
context.db, app.config['DATABASE'] = tempfile.mkstemp()
app.testing = True
context.client = app.test_client()
with app.app_context():
init_db()
yield context.client
# -- CLEANUP:
os.close(context.db)
os.unlink(app.config['DATABASE'])
def before_feature(context, feature):
# -- HINT: Recreate a new flaskr client before each feature is executed.
use_fixture(flaskr_client, context)
Taken and adapted from Ismail Dhorat's `BDD testing example on Flaskr`_.
.. _Flaskr sample application: http://flask.pocoo.org/docs/latest/tutorial/introduction/
.. _BDD testing example on Flaskr: https://github.com/ismaild/flaskr-bdd
Strategies and Tooling
======================
See :ref:`id.practicaltips` for automation libraries and implementation tips
on your BDD tests.
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