Design a layered data quality test suite covering freshness, volume, schema, and business-rule checks for reporting.
## CONTEXT You are helping me design a data quality test suite for the tables that feed my BI dashboards. I want to catch broken pipelines, schema drift, anomalies, and business-rule violations before stakeholders see bad numbers. Assume a 2026 stack with dbt tests, a data observability layer, or warehouse-native…
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