Issue #3241308 by alexpott:...

Issue #3241308 by alexpott: core/tests/Drupal/Tests/Core/Entity/Sql/DefaultTableMappingTest.php triggers deprecations on PHP 8.1

core/tests/Drupal/Tests/Core/Entity/Sql/DefaultTableMappingTest.php

@@ -362,6 +362,9 @@ public function testGetFieldTableName($table_names, $expected) {
       ->expects($this->any())
       ->method('getColumns')
       ->willReturn($columns);
+    $definition->expects($this->any())
+      ->method('getTargetEntityTypeId')
+      ->willReturn('entity_test');
 
     $this->entityType
       ->expects($this->any())