--- /dev/null
+<?php
+
+namespace Drupal\entity_test\Entity;
+
+/**
+ * Test entity class with no bundle.
+ *
+ * @ContentEntityType(
+ * id = "entity_test_no_bundle",
+ * label = @Translation("Entity Test without bundle"),
+ * base_table = "entity_test_no_bundle",
+ * entity_keys = {
+ * "id" = "id",
+ * "revision" = "revision_id",
+ * },
+ * admin_permission = "administer entity_test content",
+ * links = {
+ * "add-form" = "/entity_test_no_bundle/add",
+ * },
+ * )
+ */
+class EntityTestNoBundle extends EntityTest {
+
+}