Testing

Testing in CMEW can be done in one of two ways. Acceptance tests which run in the compare task verify if the correct outputs are produced by the workflow (ESMValTool tests, e.g. the Recipe Test Workflow, ensures the contents of the output files are as expected). Unit tests which are run inside the unittest task run pytest over existing python scripts in the workflow.

The process to run the tests is as follows:

• Navigate to the workflow directory, e.g. cd <desired_repository_location>/CMEW/CMEW

• Run either the workflow end-to-end (acceptance) tests or Python unit tests

  • Run the full CMEW workflow at the Met Office, with all tests enabled, using the command cylc vip -O metoffice -O test

  • Run only the unit tests at the Met Office, using the command cylc vip -O metoffice -O unittest

• Ensure the tests pass. One way to do this is to check Cylc Review