x01dcandClaude Sonnet 5
70696756f1
OMNY_TomoParams's poll timer called sample_name_getter every tick, which for OMNY was dev.omny_samples.get_sample_name_in_samplestage() -- a device method, dispatched by BEC as a device_rpc request through the scan queue rather than a local read. With the queue busy or paused this blocked the widget's Qt thread (GUI freeze while a scan ran) and piled up duplicate PENDING device_rpc entries in BEC's primary queue (confirmed live via bec.queue.queue_storage .describe_queue()). The method was just a one-line wrapper around an already-readable EpicsSignal, so read it directly with cached=True instead, matching flomni's fast-getter pattern and avoiding even the signal round-trip. Also applied cached=True to flomni's own getter, which didn't have the device_rpc bug but is polled the same way. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QLrD7sVYGLAzsQjLVJpCgt
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.