Chris@0: services:
Chris@0:   test_discovery:
Chris@0:     class: Drupal\simpletest\TestDiscovery
Chris@17:     arguments: ['@app.root', '@class_loader', '@module_handler']
Chris@17:   cache_context.test_discovery:
Chris@17:     class: Drupal\simpletest\Cache\Context\TestDiscoveryCacheContext
Chris@17:     arguments: ['@test_discovery', '@private_key']
Chris@17:     tags:
Chris@17:       - { name: cache.context}