Testing¶

The pipeline has three test categories that differ in scope, speed, and data requirements.

Category	Location	Speed	Purpose
Unit	`pipeline/` (co-located with source)	Fast (ms)	Validate individual functions and classes
Component	`tests/component/`	Medium	Exercise task sequences in isolation
Regression	`tests/regression/fast/` and `slow/`	Slow	Validate complete pipeline workflows against reference output

Repository layout¶

pipeline/                   # unit tests distributed throughout (co-located)
tests/
├── component/              # component tests
├── regression/
│   ├── fast/               # quick regression tests
│   └── slow/               # longer tests (requires --longtests)
├── testing_utils.py        # PipelineTester framework
└── test_pipeline_testing_framework.py

Quick start¶

Run unit tests:

PYTHONNOUSERSITE=1 ${casa_dir}/bin/python3 -m pytest -v --pyclean -m unit <pipeline_dir>/.

Run component tests:

PYTHONNOUSERSITE=1 ${casa_dir}/bin/python3 -m pytest -vv -n 4 <pipeline_dir>/tests/component/.

Run fast regression tests:

PYTHONNOUSERSITE=1 ${casa_dir}/bin/python3 -m pytest -vv <pipeline_dir>/tests/regression/fast/.