--- /dev/null
+<?php
+
+namespace Drupal\Tests\user\Kernel;
+
+use Drupal\Core\DependencyInjection\ContainerBuilder;
+use Drupal\KernelTests\KernelTestBase;
+
+/**
+ * Tests \Drupal\user\UserServiceProvider.
+ *
+ * @group user
+ * @group legacy
+ */
+class UserServiceProviderFallbackTest extends KernelTestBase {
+
+ /**
+ * Modules to enable.
+ *
+ * @var array
+ */
+ public static $modules = ['user'];
+
+ /**
+ * Tests that user.tempstore.expire equals tempstore.expire if not customized.
+ */
+ public function testUserServiceProvider() {
+ $this->assertEquals(1000, $this->container->getParameter('user.tempstore.expire'));
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function register(ContainerBuilder $container) {
+ $container->setParameter('tempstore.expire', 1000);
+ parent::register($container);
+ }
+
+}