/**
* Class GuzzleTestTrait
*
- * This trait defines a number of helper functions for testing guzzle.
+ * This trait defines a number of helper functions for testing Guzzle-based logic,
+ * such as a payment-processing gateway.
+ *
+ * Use this in a headless test for which you need to mock outbound HTTP requests from Civi.
+ * Alternatively, to write an E2E test with inbound HTTP requests to Civi, see HttpTestTrait.
*/
trait GuzzleTestTrait {
/**