CQ Tester

DAG ID: matwerk_cq_tester Schedule: Manual trigger only File: dags/cq-test.py

What it does

Tests competency questions by extracting SPARQL queries from the general_queries.md documentation file and executing each query against the read-only Virtuoso endpoint. Validates that every query returns non-empty results.

Requires published data

This DAG queries the live Virtuoso endpoint. Make sure publish_to_virtuoso has been run successfully before triggering this DAG.

Input

Source	Description
matwerk_sharedfs (Variable)	Shared filesystem for run directory
matwerk-virtuoso_sparql_ro (Variable)	Read-only Virtuoso SPARQL endpoint
general_queries.md	Downloaded from GitHub (ISE-FIZKarlsruhe/matwerk, main branch)

Output

Output	Location
markdown.md	Downloaded queries file
Console logs	Pass/fail per query

Interpreting results

Check the task logs for per-query pass/fail status. Any query returning zero results is flagged as a failure.

Task chain

init_data_dir -> test_queries

Downstream

None. This is a quality check DAG.