Running Flask Tests without installing the app

| ci | programming | python |

The Flask Docs have a great section for testing. However they assume that you have the app installed with pip install -e . which I almost never do. (Maybe I should start?) I have had trouble with this approach. So one little hack to inject your app into the searchable python path is to do something like this:

export BLOG_PATH=$(pwd) && python tests/blog_tests.py
We use \$(pwd) so that this will "just work" no matter which computer you run it on (i.e. test, dev, other persons dev) Then in yourtests/blog_tests.py file you import your flask app like this:
sys.path.insert(0, os.environ.get('BLOG_PATH'))
from blog.blog import app, init_db
You can see the full details here: https://circleci.com/gh/levlaz/blog My biggest issue with installing the app in a traditional sense is that when I run it with apache mod_wsgi it does not seem to actually copy over the right folders and apache is not able to find templates or static files. So that sucks, and I am probably doing something wrong. But this approach works more or less no matter what so sometimes a hack is better than derping around with no solution (as I did for six hours yesterday).

Thank you for reading! Share your thoughts with me on bluesky, mastodon, or via email.

Check out some more stuff to read down below.

Most popular posts this month

Recent Favorite Blog Posts

This is a collection of the last 8 posts that I bookmarked.

Articles from blogs I follow around the net

MusicBrainz Picard identifies songs from *.mp3 files and automatically fixes metadata

In my first attempt to switch from streaming to move back to listening to *.mp3 files, one of the issues I encountered was organization: how to standardize the metadata of the songs? The solution I was familiar with at the time — manually editing each son…

via Manual do Usuário April 24, 2025

Google's control of the web could be coming to an end

It's been hard to avoid the US government's antitrust case against Meta lately, since CEO Mark Zuckerberg spent three days in front of the cameras in Congress, testifying about his company's alleged anti-competitive tactics. But another equall…

via The Torment Nexus April 24, 2025

$5 million in tokens stolen from ZKsync

An attacker compromised an admin account belonging to the ZKsync Ethereum layer-2 project, which is built by Matter Labs. By doing so, they were able to steal approximately $5 million worth of the ZK token, which the project said wer…

via Web3 is Going Just Great April 24, 2025

Generated by openring