diff --git a/src/Tests/ParagraphsAccessTest.php b/src/Tests/ParagraphsAccessTest.php
index 3a2a6d2..92ec242 100644
--- a/src/Tests/ParagraphsAccessTest.php
+++ b/src/Tests/ParagraphsAccessTest.php
@@ -7,6 +7,7 @@ use Drupal\field_ui\Tests\FieldUiTestTrait;
 use Drupal\simpletest\WebTestBase;
 use Drupal\user\RoleInterface;
 use Drupal\user\Entity\Role;
+use Drupal\paragraphs\Entity\Paragraph;
 
 /**
  * Tests the access check of paragraphs.
@@ -159,4 +160,62 @@ class ParagraphsAccessTest extends WebTestBase {
     $node = $this->getNodeByTitle('delete_permissions');
     $this->assertUrl('node/' . $node->id());
   }
+
+  /**
+   * Test validation of closed paragraphs.
+   */
+  public function testValidationClosedParagraphs() {
+    // Create a Paragraphs with an entity reference field.
+
+    $admin_user = $this->drupalCreateUser(array(
+      'administer node fields',
+      'administer content types',
+      'administer node fields',
+      'administer node display',
+      'administer paragraphs types',
+      'administer paragraph fields',
+      'administer paragraph display',
+      'administer paragraph form display',
+      'administer node form display',
+      'create paragraphed_content_demo content',
+      'edit any paragraphed_content_demo content',
+    ));
+    $this->drupalLogin($admin_user);
+    // Adding Entity Reference to Paragraph Content Type.
+    $this->drupalPostForm('admin/structure/types/manage/paragraphed_content_demo/fields/add-field', [
+      'new_storage_type' => 'field_ui:entity_reference:node',
+      'label' => 'Content reference test',
+      'field_name' => 'content',
+    ], t('Save and continue'));
+
+    // Create a paragraph.
+    $paragraph_1 = Paragraph::create([
+      'title' => 'Paragraph1',
+      'type' => 'text',
+      'langcode' => 'en',
+      'field_text_demo' => 'english_text_1',
+    ]);
+    $paragraph_1->save();
+
+    // Create second paragraph and add entity reference of created first paragraph.
+    $this->drupalGet('node/add/paragraphed_content_demo');
+    $this->assertText('Content reference test');
+    $paragraph_2 = Paragraph::create([
+      'title' => 'Paragraph1',
+      'type' => 'text',
+      'langcode' => 'en',
+      'field_text_demo' => 'english_text_1',
+      'field_test_reference[0][target_id]' => 'Paragraph1',
+    ]);
+    $paragraph_2->save();
+
+    // Change the form-display to closed.
+    $this->drupalGet('admin/structure/types/manage/article/form-display');
+//    $edit = array('fields[field_paragraphs][settings_edit_form][settings][edit_mode]' => 'closed');
+//    $this->drupalPostForm(NULL, $edit, t('Save'));
+//    // Check if the setting is stored.
+//    $this->assertText('Edit mode: Closed', 'Checking the settings value.');
+//    $this->drupalPostAjaxForm(NULL, array(), "field_paragraphs_settings_edit");
+
+  }
 }