Test.cfg 【CERTIFIED】

: Manages "test mode" settings. For instance, setting unit_test_mode = True within an Airflow configuration file alters how DAGs and tasks are executed during testing.

: Uses a file named [appname].testconfig.json (often shortened to test.cfg in general conversation) to set platform-level behaviors, such as which tests to run or which reporter to use. test.cfg

: Defines specific Jest configurations for unit and end-to-end (e2e) tests, such as headless mode for browsers or viewport dimensions. Relation to Rust's #[cfg(test)] : Manages "test mode" settings