diff -u b/core/modules/tour/tests/src/Functional/TourCacheTagsTest.php b/core/modules/tour/tests/src/Functional/TourCacheTagsTest.php
--- b/core/modules/tour/tests/src/Functional/TourCacheTagsTest.php
+++ b/core/modules/tour/tests/src/Functional/TourCacheTagsTest.php
@@ -54,7 +54,7 @@
     $this->verifyPageCache($url, 'HIT', $expected_tags);
 
     // Verify that after modifying the tour, there is a cache miss.
-    $this->assertTrue('Test modification of tour.', 'Debug');
+    $this->pass('Test modification of tour.', 'Debug');
     Tour::load('tour-test')->save();
     $this->verifyPageCache($url, 'MISS');
 
@@ -62,7 +62,7 @@
     $this->verifyPageCache($url, 'HIT', $expected_tags);
 
     // Verify that after deleting the tour, there is a cache miss.
-    $this->assertTrue('Test deletion of tour.', 'Debug');
+    $this->pass('Test deletion of tour.', 'Debug');
     Tour::load('tour-test')->delete();
     $this->verifyPageCache($url, 'MISS');
 
diff -u b/core/modules/tour/tests/src/Functional/TourHelpPageTest.php b/core/modules/tour/tests/src/Functional/TourHelpPageTest.php
--- b/core/modules/tour/tests/src/Functional/TourHelpPageTest.php
+++ b/core/modules/tour/tests/src/Functional/TourHelpPageTest.php
@@ -66,14 +66,14 @@
     $this->drupalGet('admin/help');
 
     // All users should be able to see the module section.
-    $this->assertSession()->pageTextContains('Module overviews are provided by modules');
+    $this->assertText('Module overviews are provided by modules');
     foreach ($this->getModuleList() as $name) {
-      $this->assertSession()->linkExists($name);
+      $this->assertLink($name);
     }
 
     // Some users should be able to see the tour section.
     if ($tours_ok) {
-      $this->assertSession()->pageTextContains('Tours guide you through workflows');
+      $this->assertText('Tours guide you through workflows');
     }
     else {
       $this->assertSession()->pageTextNotContains('Tours guide you through workflows');
@@ -84,7 +84,7 @@
     // Test the titles that should be links.
     foreach ($titles[0] as $title) {
       if ($tours_ok) {
-        $this->assertSession()->linkExists($title);
+        $this->assertLink($title);
       }
       else {
         $this->assertSession()->linkNotExists($title);
@@ -100,7 +100,7 @@
     // Test the titles that should not be links.
     foreach ($titles[1] as $title) {
       if ($tours_ok) {
-        $this->assertSession()->pageTextContains($title);
+        $this->assertText($title);
         $this->assertSession()->linkNotExists($title);
       }
       else {
diff -u b/core/modules/tour/tests/src/Functional/TourTest.php b/core/modules/tour/tests/src/Functional/TourTest.php
--- b/core/modules/tour/tests/src/Functional/TourTest.php
+++ b/core/modules/tour/tests/src/Functional/TourTest.php
@@ -34,9 +34,10 @@
    * @var array
    *   An array of tip attributes, keyed by path.
    */
-  protected $tips = [
-    'tour-test-1' => [],
-  ];
+
+  protected $tips = array(
+   'tour-test-1' => array(),  
+  );
 
   /**
    * {@inheritdoc}
@@ -58,9 +59,9 @@
     $this->drupalGet('tour-test-1');
 
     // Test the TourTestBase class assertTourTips() method.
-    $tips = [];
-    $tips[] = ['data-id' => 'tour-test-1'];
-    $tips[] = ['data-class' => 'tour-test-5'];
+    $tips = array();
+    $tips[] = array('data-id' => 'tour-test-1');
+    $tips[] = array('data-class' => 'tour-test-5');
     $this->assertTourTips($tips);
     $this->assertTourTips();
 
@@ -163,7 +164,7 @@
     $this->assertEquals(count($elements), 1, 'Found code tip was weighted last and had "End tour".');
 
     // Test hook_tour_alter().
-    $this->assertSession()->pageTextContains('Altered by hook_tour_tips_alter');
+    $this->assertText('Altered by hook_tour_tips_alter');
 
     // Navigate to tour-test-3 and verify the tour_test_1 tip is found with
     // appropriate classes.
diff -u b/core/modules/tour/tests/src/Functional/TourTestBase.php b/core/modules/tour/tests/src/Functional/TourTestBase.php
--- b/core/modules/tour/tests/src/Functional/TourTestBase.php
+++ b/core/modules/tour/tests/src/Functional/TourTestBase.php
@@ -20,12 +20,12 @@
    * // Basic example.
    * $this->assertTourTips();
    *
-   * // Advanced example. The following would be used for multipage or targeting
-   * // a specific subset of tips.
-   * $tips = [];
-   * $tips[] = ['data-id' => 'foo'];
-   * $tips[] = ['data-id' => 'bar'];
-   * $tips[] = ['data-class' => 'baz'];
+   * // Advanced example. The following would be used for multipage or
+   * // targeting a specific subset of tips.
+   * $tips = array();
+   * $tips[] = array('data-id' => 'foo');
+   * $tips[] = array('data-id' => 'bar');
+   * $tips[] = array('data-class' => 'baz');
    * $this->assertTourTips($tips);
    * @endcode
    */
@@ -66,7 +66,7 @@
         }
         $total++;
       }
-      $this->assertTrue(TRUE, "Total $total Tips tested of which $modals modal(s).");
+      $this->pass(format_string('Total %total Tips tested of which %modals modal(s).', array('%total' => $total, '%modals' => $modals)));
     }
   }
 
diff -u b/core/modules/tour/tests/src/Functional/TourTestBasic.php b/core/modules/tour/tests/src/Functional/TourTestBasic.php
--- b/core/modules/tour/tests/src/Functional/TourTestBasic.php
+++ b/core/modules/tour/tests/src/Functional/TourTestBasic.php
@@ -22,7 +22,7 @@
    * ];
    * @endcode
    */
-  protected $tips = [];
+  protected $tips = array();
 
   /**
    * An admin user with administrative permissions for tour.
diff -u b/core/modules/tour/tests/src/Unit/Entity/TourTest.php b/core/modules/tour/tests/src/Unit/Entity/TourTest.php
--- b/core/modules/tour/tests/src/Unit/Entity/TourTest.php
+++ b/core/modules/tour/tests/src/Unit/Entity/TourTest.php
@@ -52,7 +52,7 @@
           ['route_name' => 'some.route'],
         ],
         'some.route',
-        [],
+        array(),
         TRUE,
       ],
       // Simple non-match.
@@ -61,7 +61,7 @@
           ['route_name' => 'another.route'],
         ],
         'some.route',
-        [],
+        array(),
         FALSE,
       ],
       // Empty params.
@@ -73,7 +73,7 @@
           ],
         ],
         'some.route',
-        [],
+        array(),
         FALSE,
       ],
       // Match on params.