Issue #3317938 by catch, Lendude, nod_, quietone: views_ui LibraryCachIngTest is failing randomly

core/modules/views_ui/tests/src/FunctionalJavascript/LibraryCachingTest.php

-<?php
-
-namespace Drupal\Tests\views_ui\FunctionalJavascript;
-
-use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
-
-/**
- * Tests the JavaScript library caching on consecutive requests.
- *
- * @group views_ui
- */
-class LibraryCachingTest extends WebDriverTestBase {
-
-  /**
-   * {@inheritdoc}
-   */
-  protected static $modules = ['node', 'views', 'views_ui'];
-
-  /**
-   * {@inheritdoc}
-   */
-  protected $defaultTheme = 'stark';
-
-  /**
-   * Tests if the Views UI dialogs open on consecutive requests.
-   */
-  public function testConsecutiveDialogRequests() {
-    $admin_user = $this->drupalCreateUser([
-      'administer site configuration',
-      'administer views',
-      'administer nodes',
-      'access content overview',
-    ]);
-
-    // Disable automatic live preview to make the sequence of calls clearer.
-    \Drupal::configFactory()->getEditable('views.settings')->set('ui.always_live_preview', FALSE)->save();
-    $this->drupalLogin($admin_user);
-
-    $this->drupalGet('admin/structure/views/view/content');
-    $page = $this->getSession()->getPage();
-
-    // Use the 'Add' link for fields to open a dialog. This will load the proper
-    // dialog libraries.
-    $add_link = $page->findById('views-add-field');
-    $this->assertTrue($add_link->isVisible(), 'Add fields button found.');
-    $add_link->click();
-    $this->assertJsCondition("jQuery('.ui-dialog-titlebar').length > 0");
-    // Close the dialog and open it again. No no libraries will be loaded, but a
-    // cache entry will be made for not loading any libraries.
-    $page->pressButton('Close');
-    $add_link->click();
-    $this->assertJsCondition("jQuery('.ui-dialog-titlebar').length > 0");
-    $page->pressButton('Close');
-
-    // Reload the page.
-    $this->drupalGet('admin/structure/views/view/content');
-    $page = $this->getSession()->getPage();
-
-    // Now use the 'Update preview' button to load libraries.
-    $preview = $page->findById('preview-submit');
-    // The first click will load all the libraries.
-    $preview->click();
-    $this->assertJsCondition("jQuery('.ajax-progress').length === 0");
-    // The second click will not load any new libraries.
-    $preview->click();
-    $this->assertJsCondition("jQuery('.ajax-progress').length === 0");
-    // Check to see if the dialogs still open.
-    $add_link = $page->findById('views-add-field');
-    $add_link->click();
-    $this->assertJsCondition("jQuery('.ui-dialog-titlebar').length > 0");
-    $page->pressButton('Close');
-  }
-
-}