scipp / scipp/ess

Consider creating a fake for `GenericNeXusWorkflow`

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essreduce
Dominant language
Python
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1
Forks
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Avg merge
2d 11h
Merged PRs (30d)
17

Description

Usage in a unit test:

def test_loki():
    wf = LokiWorkflow(nexus_workflow=FakeGenericNeXusWorkflow())
    wf.compute(IofQ[SampleRun])

This would allow for bypassing file I/O as well as dealing with large data (or having to create small files). The challenge is that unless instrument parameters are reasonable the workflow may fail or return data that is not verifiable, e.g., if all data is in unphysical regions.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start from the test_loki example and inspect GenericNeXusWorkflow, LokiWorkflow, and FakeGenericNeXusWorkflow usage. Define reasonable instrument parameters so LokiWorkflow.compute can bypass file I/O and produce verifiable data; done means the unit-test scenario works without large or generated input files.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
testing
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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