🛡️ Data Quality Checks vs Unit Tests: The Line You Need to Draw
Your data quality dashboard shows all green. Your pipeline just merged duplicate records and nobody noticed for a week. Or maybe it’s the opposite. Your unit tests all pass. You deploy with confidence. Then your pipeline breaks in production because the upstream API changed a field name. Does this bring vivid memories? 😊 Here’s the fact: most data engineering teams either over-rely on data quality checks or confuse them with unit tests. ...