Update to Drupal 8.1.1. For more information, see https://www.drupal.org/node/2718713

core/modules/tour/tests/src/Kernel/TourPluginTest.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace Drupal\Tests\tour\Kernel;
+
+use Drupal\KernelTests\KernelTestBase;
+
+/**
+ * Tests the functionality of tour plugins.
+ *
+ * @group tour
+ */
+class TourPluginTest extends KernelTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = array('tour');
+
+  /**
+   * Stores the tour plugin manager.
+   *
+   * @var \Drupal\tour\TipPluginManager
+   */
+  protected $pluginManager;
+
+  protected function setUp() {
+    parent::setUp();
+
+    $this->installConfig(array('tour'));
+    $this->pluginManager = $this->container->get('plugin.manager.tour.tip');
+  }
+
+  /**
+   * Test tour plugins.
+   */
+  public function testTourPlugins() {
+    $this->assertIdentical(count($this->pluginManager->getDefinitions()), 1, 'Only tour plugins for the enabled modules were returned.');
+  }
+
+}