Files
Mirko HollerandClaude Opus 5.5 9311a34157
CI for csaxs_bec / test (push) Successful in 3m40s
Merge origin/main into fix/omny_commissioning
Brings the branch up to main (LamNI beamtime + Keithley, host renames
mpc-flomni/mpc-lamni, Aerotech) so it can go in by fast-forward, together with
the OMNY host rename mpc3217 -> mpc-omny (1e7b7de) and the gripper force work.
Conflicts: docs/user/ptychography/{flomni,lamni}.md "start the loop": keep the
branch's web-interface instructions (eb8bc97) with the new host names
(http://mpc-flomni, http://mpc-lamni; main's flOMNI page still said
ssh control@mpc-lamni, a copy from the LamNI page).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 15:20:28 +01:00
..

Getting Started with Testing using pytest

BEC is using the pytest framework. It can be installed via

pip install pytest

in your python environment. We note that pytest is part of the optional-dependencies [dev] of the plugin package.

Introduction

Tests in this package should be stored in the tests directory. We suggest to sort tests of different submodules, i.e. scans or devices in the respective folder structure, and to folow a naming convention of <test_module_name.py>. It is mandatory for test files to begin with test_ for pytest to discover them.

To run all tests, navigate to the directory of the plugin from the command line, and run the command

pytest -v --random-order ./tests

Note, the python environment needs to be active. The additional arg -v allows pytest to run in verbose mode which provides more detailed information about the tests being run. The argument --random-order instructs pytest to run the tests in random order, which is the default in the CI pipelines.

Test examples

Writing tests can be quite specific for the given function. We recommend writing tests as isolated as possible, i.e. try to test single functions instead of full classes. A very useful class to enable isolated testing is MagicMock. In addition, we also recommend to take a look at the How-to guides from pytest.