diff --git a/tests/src/Functional/UwWcmsBasicTest.php b/tests/src/Functional/UwWcmsBasicTest.php
index 3c0192f794fd5767c11912cf543a6af58cc5b381..a4bad4494ad2640437df7b5b44bc559ba1871b26 100644
--- a/tests/src/Functional/UwWcmsBasicTest.php
+++ b/tests/src/Functional/UwWcmsBasicTest.php
@@ -1364,6 +1364,7 @@ class UwWcmsBasicTest extends BrowserTestBase {
       'Image',
       'Image gallery',
       'Instagram',
+      'Mailchimp',
       'Mailman subscription',
       'Multi-type list',
       'PowerBI',
@@ -1657,6 +1658,34 @@ class UwWcmsBasicTest extends BrowserTestBase {
           $this->assertTrue((bool) $this->xpath('//div[@class="uw-google-maps"]/iframe[@height="' . $edit['edit-settings-block-form-field-gmaps-height-0-value'] . '" and @src="' . $edit['edit-settings-block-form-field-gmaps-embedded-url-0-uri'] . '"]'));
           break;
 
+        case 'Mailchimp':
+          $mailchimp = [
+            'form-h2-title' => $this->randomString(),
+            'form-field-label' => $this->randomString(),
+          ];
+          // The below source code is from the
+          // copied-and-pasted from MailChimp used in pilot canary site.
+          $embed_code =
+            '<!-- Begin MailChimp Signup Form -->
+<link href="//cdn-images.mailchimp.com/embedcode/classic-10_7.css" rel="stylesheet" type="text/css">
+<form action="https://twitter.us12.list-manage.com/subscribe/post?u=9026a2566cf71cb4773088fdb&amp;id=0b02bfdf36" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate>
+<h2>' . $mailchimp["form-h2-title"] . '</h2>
+<div><label for="EMAIL">' . $mailchimp["form-field-label"] . '</label><input type="email" value="" name="EMAIL" id="email"></div>
+<input type="submit" value="Subscribe" name="subscribe" id="subscribe">
+</form>
+<!--End mc_embed_signup-->';
+          $edit = [
+            'edit-settings-label' => $this->randomString(),
+            'edit-settings-block-form-field-uw-mailchimp-0-value' => $embed_code,
+          ];
+          $this->submitForm($edit, 'Add block');
+          $this->assertSession()->pageTextContains($mailchimp['form-h2-title']);
+          $this->assertSession()->pageTextContains($mailchimp['form-field-label']);
+          $xpath = '//h2[text() = "' . $mailchimp['form-h2-title'] .'"]';
+          $this->assertSession()->elementExists('xpath', $xpath);
+
+          break;
+
         case 'Multi-type list':
           $this->assertSession()->fieldExists('edit-settings-show-all-items');
           $this->assertSession()->fieldExists('edit-settings-show-view-all');
@@ -2009,6 +2038,7 @@ class UwWcmsBasicTest extends BrowserTestBase {
       'tr[data-drupal-selector="edit-categories-inline-blockuw-cbl-copy-text"]',
       'tr[data-drupal-selector="edit-categories-inline-blockuw-cbl-facts-and-figures"]',
       'tr[data-drupal-selector="edit-categories-uw-lbb-image"]',
+      'tr[data-drupal-selector="edit-categories-inline-blockuw-cbl-mailchimp"]',
       'tr[data-drupal-selector="edit-categories-inline-blockuw-cbl-mailman"]',
       'tr[data-drupal-selector="edit-categories-inline-blockuw-cbl-related-links"]',
       'tr[data-drupal-selector="edit-categories-inline-blockuw-cbl-social-intents"]',