https://api.drupal.org/api/drupal/core%21modules%21views%21tests%21modules%21views_test_data%21src%21Plugin%21views%21display_extender%21DisplayExtenderTest.php/property/DisplayExtenderTest%3A%3AtestState/10
DisplayExtenderTest::$testState | Drupal API
drupalapi
https://aws.amazon.com/about-aws/whats-new/2023/11/aws-step-functions-https-endpoints-teststate-api/
AWS Step Functions launches support for HTTPS endpoints and a new TestState API - AWS
Discover more about what's new at AWS with AWS Step Functions launches support for HTTPS endpoints and a new TestState API
aws step functions
https://aws.amazon.com/blogs/compute/testing-step-functions-workflows-a-guide-to-the-enhanced-teststate-api/
Testing Step Functions workflows: a guide to the enhanced TestState API | AWS Compute Blog
Mar 22, 2026 - AWS Step Functions recently announced new enhancements to local testing capabilities for Step Functions, introducing API-based testing that developers can use...