dbt custom generic data test (this repo)

When to use

• Adding or changing a custom generic data test ({% test my_test(model, column_name, ...) %}).
• Wiring adapter.dispatch for warehouse-specific SQL (here: BigQuery).
• Adding macro schema docs (macros: / test_<name>) or an integration_tests model + data_tests.
• Debugging test_<name> is undefined or shadowing between the package and integration_tests.

When not to use

• Singular (data) tests in tests/ that are not reusable generic tests—use normal dbt test guidance.
• Warehouse features unrelated to test macro structure.

Workflow (short)

1. Read the official guide: Writing custom generic data tests (standard args, YAML usage, documenting test_<name>).
2. Open the detailed checklist: references/checklist.md.
3. Mirror the k_anonymity layout under macros/generic_tests/<name>/ and integration fixtures under integration_tests/models/generic_tests/<name>/ unless there is a reason not to.
4. Validate with make run-unit-tests; use make run-integration-tests when SQL execution or BigQuery behavior changes (see AGENTS.md).

This skill keeps SKILL.md short for discovery and puts procedural detail in references/checklist.md (progressive disclosure).

Canonical paths (examples)

Concern	Example in repo
Generic test + bigquery__test_* (k-anonymity)	macros/generic_tests/k_anonymity/k_anonymity.sql
Generic test + bigquery__test_* (l-diversity)	macros/generic_tests/l_diversity/l_diversity.sql
Validation + query SQL	k_anonymity_validate_arguments.sql, k_anonymity_query_sql_impl.sql
Macro property docs	k_anonymity.yml (name: test_k_anonymity)
Integration fixture + qualified test	schema.yml (dbt_data_privacy.k_anonymity)
Macro unit test (name must not shadow generic test)	test_k_anonymity.sql
Macro unit test (l-diversity)	test_l_diversity.sql

Constraints specific to dbt-data-privacy

• BigQuery only for new generic tests unless the maintainers expand adapters.
• Prefer minimal behavior changes; keep existing tests green.
• Do not use Jinja delimiters inside macro property YAML description fields (dbt compiles those files as Jinja).