diff --git a/core/modules/comment/lib/Drupal/comment/Tests/CommentFieldsTest.php b/core/modules/comment/lib/Drupal/comment/Tests/CommentFieldsTest.php
index ab03d41..6e33e36 100644
--- a/core/modules/comment/lib/Drupal/comment/Tests/CommentFieldsTest.php
+++ b/core/modules/comment/lib/Drupal/comment/Tests/CommentFieldsTest.php
@@ -117,4 +117,40 @@ function testCommentFormat() {
     $edit = array('comment_body[und][0][value]' => $this->randomName(8));
     $this->drupalPost('node/' . $this->node->nid, $edit, t('Save'));
   }
+
+  /**
+   * Tests that comment fields can be managed through the UI.
+   */
+  function testCommentFieldUI() {
+    // Log in as the administrative user.
+    $this->drupalLogin($this->admin_user);
+
+    // Create a test node type and a node of that type.
+    $this->drupalCreateContentType(array('type' => 'test_node_type'));
+    $node = $this->drupalCreateNode(array('type' => 'test_node_type'));
+
+    // Add a field to the comments for this node type through the UI.
+    $edit = array(
+      'fields[_add_new_field][label]' => t('Test field label'),
+      'fields[_add_new_field][field_name]' => 'test_field',
+      'fields[_add_new_field][type]' => 'text',
+      'fields[_add_new_field][widget_type]' => 'text_textfield',
+    );
+    $this->drupalPost('admin/structure/types/manage/test_node_type/comment/fields', $edit, t('Save'));
+
+    // Confirm that the field is present
+    $this->drupalGet('comment/reply/' . $node->nid);
+    $this->assertText(t('Test field label'));
+
+    $this->drupalGet('admin/structure/types/manage/test_node_type/comment/fields');
+
+    // Delete the field through the UI.
+    $this->drupalPost('admin/structure/types/manage/test_node_type/comment/fields/field_test_field/delete', array(), t('Delete'));
+
+    // Confirm that the field is no longer present
+    $this->drupalGet('comment/reply/' . $node->nid);
+    $this->assertNoText(t('Test field label'));
+
+  }
+
 }