Files
csaxs_bec/tests/tests_bec_widgets
x01dcandClaude Sonnet 5 0690fbb391 feat(flomni): auto-lock ROI vertical center to FZP height in x-ray eye alignment
Implements docs/plans/xrayeye-vertical-lock.md: once the height-centering
step fixes the sample's vertical position against the FZP crosshair, every
selection box drawn for the remaining angle-alignment steps (1-5) no longer
needs manual vertical placement -- it snaps to the crosshair's y position on
draw and again on every drag/resize.

- OMNY_XRayEye: new _vertical_lock_enabled state, lock_vertical_center()/
  unlock_vertical_center() RPC methods, _snap_roi_vertical() helper wired
  into _style_new_roi() (both roiAdded and sigRegionChangeFinished). Snap is
  idempotent (no-op once already at the target y) so it can't loop back into
  itself via its own set_position() call.
- Also added a "ROI vertical lock" toggle in the control panel so an
  operator can release/re-engage the lock manually mid-run -- e.g. to freely
  draw/measure an unrelated box without aborting the alignment. Both the
  toggle and the RPC methods stay in sync (blockSignals pattern already used
  elsewhere in this file for on_live_view_enabled).
- x_ray_eye_align.py: lock_vertical_center() right after _height_centered
  flips to True; unlock_vertical_center() at the start of every fresh run
  (so a run never inherits a stale lock) and in align()'s finally block
  (so the lock never outlives a run, including on error/interruption).

FZP box (step 0) and the height-centering box itself remain fully free --
the lock isn't engaged yet at that point. LamNI/OMNY have their own
near-identical scripts but are explicitly out of scope (per the plan); the
widget change is inert by default.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lx3KffiFyyDMKT8vvPENUW
2026-09-17 14:22:20 +02:00
..

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.