--- /dev/null
+<?php
+
+namespace Drupal\Tests\system\Functional\System;
+
+use Drupal\Core\Menu\MenuTreeParameters;
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests output on administrative pages and compact mode functionality.
+ *
+ * @group system
+ */
+class AdminTest extends BrowserTestBase {
+
+ /**
+ * User account with all available permissions
+ *
+ * @var \Drupal\Core\Session\AccountInterface
+ */
+ protected $adminUser;
+
+ /**
+ * User account with limited access to administration pages.
+ *
+ * @var \Drupal\Core\Session\AccountInterface
+ */
+ protected $webUser;
+
+ /**
+ * Modules to enable.
+ *
+ * @var array
+ */
+ public static $modules = ['locale'];
+
+ protected function setUp() {
+ // testAdminPages() requires Locale module.
+ parent::setUp();
+
+ // Create an administrator with all permissions, as well as a regular user
+ // who can only access administration pages and perform some Locale module
+ // administrative tasks, but not all of them.
+ $this->adminUser = $this->drupalCreateUser(array_keys(\Drupal::service('user.permissions')->getPermissions()));
+ $this->webUser = $this->drupalCreateUser([
+ 'access administration pages',
+ 'translate interface',
+ ]);
+ $this->drupalLogin($this->adminUser);
+ }
+
+ /**
+ * Tests output on administrative listing pages.
+ */
+ public function testAdminPages() {
+ // Go to Administration.
+ $this->drupalGet('admin');
+
+ // Verify that all visible, top-level administration links are listed on
+ // the main administration page.
+ foreach ($this->getTopLevelMenuLinks() as $item) {
+ $this->assertLink($item->getTitle());
+ $this->assertLinkByHref($item->getUrlObject()->toString());
+ // The description should appear below the link.
+ $this->assertText($item->getDescription());
+ }
+
+ // For each administrative listing page on which the Locale module appears,
+ // verify that there are links to the module's primary configuration pages,
+ // but no links to its individual sub-configuration pages. Also verify that
+ // a user with access to only some Locale module administration pages only
+ // sees links to the pages they have access to.
+ $admin_list_pages = [
+ 'admin/index',
+ 'admin/config',
+ 'admin/config/regional',
+ ];
+
+ foreach ($admin_list_pages as $page) {
+ // For the administrator, verify that there are links to Locale's primary
+ // configuration pages, but no links to individual sub-configuration
+ // pages.
+ $this->drupalLogin($this->adminUser);
+ $this->drupalGet($page);
+ $this->assertLinkByHref('admin/config');
+ $this->assertLinkByHref('admin/config/regional/settings');
+ $this->assertLinkByHref('admin/config/regional/date-time');
+ $this->assertLinkByHref('admin/config/regional/language');
+ $this->assertNoLinkByHref('admin/config/regional/language/detection/session');
+ $this->assertNoLinkByHref('admin/config/regional/language/detection/url');
+ $this->assertLinkByHref('admin/config/regional/translate');
+ // On admin/index only, the administrator should also see a "Configure
+ // permissions" link for the Locale module.
+ if ($page == 'admin/index') {
+ $this->assertLinkByHref("admin/people/permissions#module-locale");
+ }
+
+ // For a less privileged user, verify that there are no links to Locale's
+ // primary configuration pages, but a link to the translate page exists.
+ $this->drupalLogin($this->webUser);
+ $this->drupalGet($page);
+ $this->assertLinkByHref('admin/config');
+ $this->assertNoLinkByHref('admin/config/regional/settings');
+ $this->assertNoLinkByHref('admin/config/regional/date-time');
+ $this->assertNoLinkByHref('admin/config/regional/language');
+ $this->assertNoLinkByHref('admin/config/regional/language/detection/session');
+ $this->assertNoLinkByHref('admin/config/regional/language/detection/url');
+ $this->assertLinkByHref('admin/config/regional/translate');
+ // This user cannot configure permissions, so even on admin/index should
+ // not see a "Configure permissions" link for the Locale module.
+ if ($page == 'admin/index') {
+ $this->assertNoLinkByHref("admin/people/permissions#module-locale");
+ }
+ }
+ }
+
+ /**
+ * Returns all top level menu links.
+ *
+ * @return \Drupal\Core\Menu\MenuLinkInterface[]
+ */
+ protected function getTopLevelMenuLinks() {
+ $menu_tree = \Drupal::menuTree();
+
+ // The system.admin link is normally the parent of all top-level admin links.
+ $parameters = new MenuTreeParameters();
+ $parameters->setRoot('system.admin')->excludeRoot()->setTopLevelOnly()->onlyEnabledLinks();
+ $tree = $menu_tree->load(NULL, $parameters);
+ $manipulators = [
+ ['callable' => 'menu.default_tree_manipulators:checkAccess'],
+ ['callable' => 'menu.default_tree_manipulators:flatten'],
+ ];
+ $tree = $menu_tree->transform($tree, $manipulators);
+
+ // Transform the tree to a list of menu links.
+ $menu_links = [];
+ foreach ($tree as $element) {
+ $menu_links[] = $element->link;
+ }
+
+ return $menu_links;
+ }
+
+ /**
+ * Test compact mode.
+ */
+ public function testCompactMode() {
+ $session = $this->getSession();
+
+ // The front page defaults to 'user/login', which redirects to 'user/{user}'
+ // for authenticated users. We cannot use '<front>', since this does not
+ // match the redirected url.
+ $frontpage_url = 'user/' . $this->adminUser->id();
+
+ $this->drupalGet('admin/compact/on');
+ $this->assertResponse(200, 'A valid page is returned after turning on compact mode.');
+ $this->assertUrl($frontpage_url, [], 'The user is redirected to the front page after turning on compact mode.');
+ $this->assertTrue($session->getCookie('Drupal.visitor.admin_compact_mode'), 'Compact mode turns on.');
+ $this->drupalGet('admin/compact/on');
+ $this->assertTrue($session->getCookie('Drupal.visitor.admin_compact_mode'), 'Compact mode remains on after a repeat call.');
+ $this->drupalGet('');
+ $this->assertTrue($session->getCookie('Drupal.visitor.admin_compact_mode'), 'Compact mode persists on new requests.');
+
+ $this->drupalGet('admin/compact/off');
+ $this->assertResponse(200, 'A valid page is returned after turning off compact mode.');
+ $this->assertUrl($frontpage_url, [], 'The user is redirected to the front page after turning off compact mode.');
+ $this->assertNull($session->getCookie('Drupal.visitor.admin_compact_mode'), 'Compact mode turns off.');
+ $this->drupalGet('admin/compact/off');
+ $this->assertNull($session->getCookie('Drupal.visitor.admin_compact_mode'), 'Compact mode remains off after a repeat call.');
+ $this->drupalGet('');
+ $this->assertNull($session->getCookie('Drupal.visitor.admin_compact_mode'), 'Compact mode persists off new requests.');
+ }
+
+}