Api3 - Test fix

api/v3/CustomValue.php

@@ -240,7 +240,7 @@ function _civicrm_api3_custom_value_gettree_spec(&$spec) {
     'api.required' => 1,
   ];
   $entities = civicrm_api3('Entity', 'get');
-  $entities = array_diff($entities['values'], $entities['deprecated']);
+  $entities = array_diff($entities['values'], $entities['deprecated'] ?? []);
   $spec['entity_type'] = [
     'title' => 'Entity Type',
     'description' => 'API name of entity type, e.g. "Contact"',

tests/phpunit/api/v3/MultilingualTest.php

@@ -110,7 +110,7 @@ class api_v3_MultilingualTest extends CiviUnitTestCase {
     ];
     // fetch all entities
     $entities = $this->callAPISuccess('Entity', 'get', []);
-    $skippableEntities = array_merge($skippableEntities, $entities['deprecated']);
+    $skippableEntities = array_merge($skippableEntities, $entities['deprecated'] ?? []);
 
     foreach ($entities['values'] as $entity) {
       $params = ['check_permissions' => 1];