x01dcandClaude Sonnet 5
6c3d60306d
Port two flomni tomo_scan() behaviors lamni was missing: an end-of-scan timing overview (total time, time excluding gaps, time lost to gaps, sample/hook info) printed and written to scilog, and automatic repeat of an entire projection when the beamline interlock trips mid-scan. The latter needed two pieces together: enabling bec.builtin_actors.scan_interlock at tomo_scan() start (previously never enabled for lamni), and wrapping _tomo_scan_at_angle in @scan_repeat so the resulting ScanRestart (or any other transient exception) redoes the whole projection instead of aborting the scan. A new LamNIError marks the one non-retryable case (unregistered at_each_angle_hook), replacing a plain ValueError there. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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.