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Repovive

Testing in dbt - dbt and the Transformation Layer | Data Engineer Interview Prep | Repovive

Repovive.

Data Engineer Interview Prep16 sections · 140 units8h total

Open in Course

Testing in dbt

Data quality built in

dbt has built-in testing for data quality.

Schema tests (in schema.yml):

models:
  - name: orders
    columns:
      - name: order_id
        tests:
          - unique
          - not_null
      - name: status
        tests:
          - accepted_values:
              values: ['pending', 'shipped', 'delivered']

Custom data tests: SQL that should return $0$ rows.

Run tests: dbt test runs all tests. Integrate into CI/CD.

Interview favorite: "How do you ensure data quality in your pipelines?"