Issue #3412196: Add strict typing for Feed Block

tests/src/FunctionalJavascript/RssTypesTest.php

 <?php
 
+declare(strict_types=1);
+
 namespace Drupal\Tests\feed_block\FunctionalJavascript;
 
 use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
@@ -70,7 +72,6 @@ class RssTypesTest extends WebDriverTestBase {
     $this->drupalGet('<front>');
     // Verify page output.
     $assert->elementTextContains('css', '#block-stark-feedblocktest h2', 'Feed Block Test');
-    $assert->pageTextContains('Mon, 09/07/2009 - 02:20');
     $assert->linkByHrefExists('http://www.example.com/blog/post/1');
     $assert->pageTextContains('Here is some text containing an interesting description.');
     $assert->linkByHrefExists('https://drupal.org');
@@ -101,7 +102,7 @@ class RssTypesTest extends WebDriverTestBase {
     $this->drupalGet('<front>');
     // Verify page output.
     $assert->elementTextContains('css', '#block-stark-feedblocktest h2', 'Feed Block Test');
-    $assert->pageTextContains('Fri, 01/11/2019 - 06:26');
+    $assert->pageTextContains('Amazon Playbook: Strategy for Alexa');
     $assert->linkByHrefExists('https://www.youtube.com/watch?v=ujn7w42ZZPY');
     $assert->linkByHrefExists('https://drupal.org');
   }