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Exercise 2

To create singular test to validate format check on Year column in aggregate_global_temperatures model​

Follow the instructions below using DBT:

  1. Open your dbt project and navigate to the tests folder.

  2. Create a new file called assert_year_format_aggregate_global_temperatures.sql or any suitable name for the singular test file.

  3. In the file, define the query to check whether the year column is in YYYY format in aggregate_global_emissions view.

  4. Specify the view name in the query by referencing the aggregate_global_temperatures view. You can use the ref() function to refer to the view. For example, FROM {{ ref('aggregate_global_temperatures') }}.

  5. Define the query in such a way that it should result output if any row has format other than YYYY format in year column.

  6. Save the file.

  7. Run the dbt test project to validate the result. You can use the dbt test command in your terminal to see if test case is successfully completed.