--- /dev/null
+<?php
+
+namespace Drupal\entity_test;
+
+use Drupal\Component\Utility\NestedArray;
+use Drupal\views\EntityViewsData;
+
+/**
+ * Provides a view to override views data for test entity types.
+ */
+class EntityTestViewsData extends EntityViewsData {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getViewsData() {
+ $views_data = parent::getViewsData();
+
+ if ($this->entityType->id() != 'entity_test') {
+ return $views_data;
+ }
+
+ $views_data = NestedArray::mergeDeep($views_data, \Drupal::state()->get('entity_test.views_data', []));
+
+ return $views_data;
+ }
+
+}