diff --git a/tests/src/FunctionalJavascript/WidgetJSTest.php b/tests/src/FunctionalJavascript/WidgetJSTest.php
index 3559e66..3604197 100644
--- a/tests/src/FunctionalJavascript/WidgetJSTest.php
+++ b/tests/src/FunctionalJavascript/WidgetJSTest.php
@@ -50,8 +50,9 @@ class WidgetJSTest extends JavascriptTestBase {
    */
   public function testCheckboxWidget() {
     $facet_storage = \Drupal::entityTypeManager()->getStorage('facets_facet');
-
     $id = 'llama';
+
+    // Create and save a facet with a checkbox widget on the 'type' field.
     $facet = $facet_storage->create([
       'id' => $id,
       'name' => strtoupper($id),
@@ -64,15 +65,25 @@ class WidgetJSTest extends JavascriptTestBase {
     $facet->save();
     $this->createBlock($id);
 
+    // Go to the views page.
     $this->drupalGet('search-api-test-fulltext');
 
+    // Make sure the block is shown on the page.
     $page = $this->getSession()->getPage();
     $page_content = $page->getContent();
-    $this->assertTrue(strpos($page_content, 'Llama block') > 0);
+    $this->assertTrue(strpos($page_content, 'Llama block') > 0, 'Block found on page.');
+
+    // Narrow the context to the block that shows the facet and get objects that
+    // contain the <li>-html elements.
+    $list_items = $page->findById('block-llama-block')->findAll('css', 'li');
 
-    $links = $page->findById('block-llama-block')->findAll('css', 'a');
+    $this->assertCount(2, $list_items);
 
-    $this->assertNotNull($links);
+    /** @var \Behat\Mink\Element\NodeElement $list_item */
+    foreach ($list_items as $list_item) {
+      $this->assertEquals('li', $list_item->getTagName());
+      $this->assertTrue(strpos($list_item->getHtml(), '<a href') !== FALSE, 'Link found in list item.');
+    }
   }
 
   /**
@@ -134,6 +145,12 @@ class WidgetJSTest extends JavascriptTestBase {
     $this->assertEquals(5, $indexed_items, '5 items indexed.');
   }
 
+  /**
+   * Create and place a facet block in the first sidebar.
+   *
+   * @param string $id
+   *   Create a block for a facet.
+   */
   protected function createBlock($id) {
     $config = \Drupal::configFactory();
     $settings = [