--- /dev/null
+<?php
+
+namespace Drupal\KernelTests\Core\Cache;
+
+use Drupal\Core\Cache\PhpBackend;
+
+/**
+ * Unit test of the PHP cache backend using the generic cache unit test base.
+ *
+ * @group Cache
+ */
+class PhpBackendTest extends GenericCacheBackendUnitTestBase {
+
+ /**
+ * Creates a new instance of MemoryBackend.
+ *
+ * @return
+ * A new MemoryBackend object.
+ */
+ protected function createCacheBackend($bin) {
+ $backend = new PhpBackend($bin, \Drupal::service('cache_tags.invalidator.checksum'));
+ return $backend;
+ }
+
+}