diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
index 2873677ed1..7c94158adc 100644
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -5055,6 +5055,7 @@ phutil_register_library_map(array(
       'PhabricatorFlaggableInterface',
       'PhabricatorTokenReceiverInterface',
       'PhabricatorProjectInterface',
+      'PhabricatorDestructibleInterface',
     ),
     'PhabricatorSlowvotePollController' => 'PhabricatorSlowvoteController',
     'PhabricatorSlowvotePollPHIDType' => 'PhabricatorPHIDType',
diff --git a/src/infrastructure/testing/PhabricatorTestCase.php b/src/infrastructure/testing/PhabricatorTestCase.php
index a2e322b380..e517ffaf8c 100644
--- a/src/infrastructure/testing/PhabricatorTestCase.php
+++ b/src/infrastructure/testing/PhabricatorTestCase.php
@@ -110,6 +110,12 @@ abstract class PhabricatorTestCase extends ArcanistPhutilTestCase {
       'phabricator.application-settings',
       array());
 
+    // We can't stub this service right now, and it's not generally useful
+    // to publish notifications about test execution.
+    $this->env->overrideEnvConfig(
+      'notification.enabled',
+      false);
+
     // TODO: Remove this when we remove "releeph.installed".
     $this->env->overrideEnvConfig('releeph.installed', true);
   }