How to run tools/run_tests.py

[gitgotcha77]

Hello everyone.

Should the tests work on Debian 11 and 12 ?
I've also read a post in 'Issues' that I have to quit X-Session.

However, my first setup was with my RPI5 with Debian 12, and when i started tests without an X-Session, a few tests passed but most of them failed. I think all fails had an error message like "can't connect to X-something", so that made me think that I need to start it from Desktop?
Also it looks like some tests tried to start an X-Session again.

So my 2nd try was with an X-Session and then start the test in a terminal. Almost immediately my X-Session was suspended, but i could not see if a test passed or failed. Also the session was never restored.

My 3rd try was on my RPI4, with Bullseye (11): same behaviour

How exactly should I setup the environment for testing?
RPI4/5 ?
Debain 11/12?
Python >= 3.9?
VENV or no-VENV?
Any specific Desktop settings?
Any specific services required to run?

Thank you very much for any help!

[gitgotcha77]

My steps:

• cd /home/pi
• python3 -m venv py311_pc2_testing --system-site-packages
• source py311_pc2_testing/bin/activate
• git clone -depth 1 -b v0.3.18 https://github.com/raspberrypi/picamera2.git
• cd picamera2
• sudo apt install -y python3-libcamera python3-kms++
• sudo apt install -y python3-pyqt5 python3-prctl libatlas-base-dev ffmpeg python3-pip
• pip install "numpy<2.0"
• pip install -r requirements-test.txt
• python tools/run_tests.py

[gitgotcha77]

Am I overlooking something really obvious and I'm stupid?
Any ideas?