Mock Statements

Mock statements create temporary mock implementations of datasources or concepts for testing and development.

Syntax

mock_statement: "mock" SCOPE (IDENTIFIER ("," IDENTIFIER)*)?

Where SCOPE is one of: concepts, concept, datasources, datasource

Mock Datasources

Create mock data for a datasource:


mock datasource customers;

Mock Multiple

Mock multiple datasources at once:


mock datasources customers, orders, products;

Mock Concepts

Mock specific concepts:


mock concept customer.id, customer.name;

Use Cases

Unit testing queries without database access
Rapid prototyping
Documentation examples
CI/CD pipelines

Example


import customer as customer;
# Mock the customer datasource for testing
mock datasource customers;
# Now queries will use mock data
select
    customer.id,
    customer.name
;

Tips

Mock data is generated based on concept types - strings get placeholder text, numbers get sample values, dates get reasonable defaults.