class MenuRouterTest

class MenuRouterTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'block',
        'menu_test',
        'test_page_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Name of the administrative theme to use for tests.
     *
     * @var string
     */
    protected $adminTheme;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        // Enable dummy module that implements hook_menu.
        parent::setUp();
        $this->drupalPlaceBlock('system_menu_block:tools');
        $this->drupalPlaceBlock('local_tasks_block');
        $this->drupalPlaceBlock('page_title_block');
    }
    
    /**
     * Tests menu integration.
     */
    public function testMenuIntegration() : void {
        $this->doTestTitleMenuCallback();
        $this->doTestMenuOptionalPlaceholders();
        $this->doTestMenuHierarchy();
        $this->doTestMenuOnRoute();
        $this->doTestMenuName();
        $this->doTestMenuLinksDiscoveredAlter();
        $this->doTestHookMenuIntegration();
        $this->doTestExoticPath();
    }
    
    /**
     * Tests local tasks with route placeholders.
     */
    protected function doTestHookMenuIntegration() {
        // Generate base path with random argument.
        $machine_name = $this->randomMachineName(8);
        $base_path = 'foo/' . $machine_name;
        $this->drupalGet($base_path);
        // Confirm correct controller activated.
        $this->assertSession()
            ->pageTextContains('test1');
        // Confirm local task links are displayed.
        $this->assertSession()
            ->linkExists('Local task A');
        $this->assertSession()
            ->linkExists('Local task B');
        $this->assertSession()
            ->linkNotExists('Local task C');
        $this->assertSession()
            ->assertEscaped("<script>alert('Welcome to the jungle!')</script>");
        // Confirm correct local task href.
        $this->assertSession()
            ->linkByHrefExists(Url::fromRoute('menu_test.router_test1', [
            'bar' => $machine_name,
        ])->toString());
        $this->assertSession()
            ->linkByHrefExists(Url::fromRoute('menu_test.router_test2', [
            'bar' => $machine_name,
        ])->toString());
    }
    
    /**
     * Tests title callback set to FALSE.
     */
    protected function doTestTitleCallbackFalse() {
        $this->drupalGet('test-page');
        $this->assertSession()
            ->pageTextContains('A title with @placeholder');
        $this->assertSession()
            ->pageTextNotContains('A title with some other text');
    }
    
    /**
     * Tests page title of MENU_CALLBACKs.
     */
    protected function doTestTitleMenuCallback() {
        // Verify that the menu router item title is not visible.
        $this->drupalGet('');
        $this->assertSession()
            ->pageTextNotContains('Menu Callback Title');
        // Verify that the menu router item title is output as page title.
        $this->drupalGet('menu_callback_title');
        $this->assertSession()
            ->pageTextContains('Menu Callback Title');
    }
    
    /**
     * Tests menu item descriptions.
     */
    protected function doTestDescriptionMenuItems() {
        // Verify that the menu router item title is output as page title.
        $this->drupalGet('menu_callback_description');
        $this->assertSession()
            ->pageTextContains('Menu item description text');
    }
    
    /**
     * Tests for menu_name parameter for default menu links.
     */
    protected function doTestMenuName() {
        $admin_user = $this->drupalCreateUser([
            'administer site configuration',
        ]);
        $this->drupalLogin($admin_user);
        
        /** @var \Drupal\Core\Menu\MenuLinkManagerInterface $menu_link_manager */
        $menu_link_manager = \Drupal::service('plugin.manager.menu.link');
        $menu_links = $menu_link_manager->loadLinksByRoute('menu_test.menu_name_test');
        $menu_link = reset($menu_links);
        $this->assertEquals('original', $menu_link->getMenuName(), 'Menu name is "original".');
        // Change the menu_name parameter in menu_test.module, then force a menu
        // rebuild.
        menu_test_menu_name('changed');
        $menu_link_manager->rebuild();
        $menu_links = $menu_link_manager->loadLinksByRoute('menu_test.menu_name_test');
        $menu_link = reset($menu_links);
        $this->assertEquals('changed', $menu_link->getMenuName(), 'Menu name was successfully changed after rebuild.');
    }
    
    /**
     * Tests menu links added in hook_menu_links_discovered_alter().
     */
    protected function doTestMenuLinksDiscoveredAlter() {
        // Check that machine name does not need to be defined since it is already
        // set as the key of each menu link.
        
        /** @var \Drupal\Core\Menu\MenuLinkManagerInterface $menu_link_manager */
        $menu_link_manager = \Drupal::service('plugin.manager.menu.link');
        $menu_links = $menu_link_manager->loadLinksByRoute('menu_test.custom');
        $menu_link = reset($menu_links);
        $this->assertEquals('menu_test.custom', $menu_link->getPluginId(), 'Menu links added at hook_menu_links_discovered_alter() obtain the machine name from the $links key.');
        // Make sure that rebuilding the menu tree does not produce duplicates of
        // links added by hook_menu_links_discovered_alter().
        $this->drupalGet('menu-test');
        $this->assertSession()
            ->pageTextContainsOnce('Custom link');
    }
    
    /**
     * Tests for menu hierarchy.
     */
    protected function doTestMenuHierarchy() {
        
        /** @var \Drupal\Core\Menu\MenuLinkManagerInterface $menu_link_manager */
        $menu_link_manager = \Drupal::service('plugin.manager.menu.link');
        $menu_links = $menu_link_manager->loadLinksByRoute('menu_test.hierarchy_parent');
        $parent_link = reset($menu_links);
        $menu_links = $menu_link_manager->loadLinksByRoute('menu_test.hierarchy_parent_child');
        $child_link = reset($menu_links);
        $menu_links = $menu_link_manager->loadLinksByRoute('menu_test.hierarchy_parent_child2');
        $unattached_child_link = reset($menu_links);
        $this->assertEquals($parent_link->getPluginId(), $child_link->getParent(), 'The parent of a directly attached child is correct.');
        $this->assertEquals($child_link->getPluginId(), $unattached_child_link->getParent(), 'The parent of a non-directly attached child is correct.');
    }
    
    /**
     * Tests menu links that have optional placeholders.
     */
    protected function doTestMenuOptionalPlaceholders() {
        $this->drupalGet('menu-test/optional');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains('Sometimes there is no placeholder.');
        $this->drupalGet('menu-test/optional/foobar');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains("Sometimes there is a placeholder: 'foobar'.");
    }
    
    /**
     * Tests a menu on a router page.
     */
    protected function doTestMenuOnRoute() {
        \Drupal::service('module_installer')->install([
            'router_test',
        ]);
        $this->resetAll();
        $this->drupalGet('router_test/test2');
        $this->assertSession()
            ->linkByHrefExists('menu_no_title_callback');
        $this->assertSession()
            ->linkByHrefExists('menu-title-test/case1');
        $this->assertSession()
            ->linkByHrefExists('menu-title-test/case2');
        $this->assertSession()
            ->linkByHrefExists('menu-title-test/case3');
    }
    
    /**
     * Tests path containing "exotic" characters.
     */
    protected function doTestExoticPath() {
        // "Special" ASCII characters.
        $path = "menu-test/ -._~!\$'\"()*@[]?&+%#,;=:" . "%23%25%26%2B%2F%3F" . "éøïвβ中國書۞";
        $this->drupalGet($path);
        $this->assertSession()
            ->pageTextContains('This is the menuTestCallback content.');
        $this->assertSession()
            ->pageTextNotContains('The website encountered an unexpected error. Try again later.');
    }
    
    /**
     * Make sure the maintenance mode can be bypassed using an EventSubscriber.
     *
     * @see \Drupal\menu_test\EventSubscriber\MaintenanceModeSubscriber::onKernelRequestMaintenance()
     */
    public function testMaintenanceModeLoginPaths() : void {
        $this->container
            ->get('state')
            ->set('system.maintenance_mode', TRUE);
        $offline_message = $this->config('system.site')
            ->get('name') . ' is currently under maintenance. We should be back shortly. Thank you for your patience.';
        $this->drupalGet('test-page');
        $this->assertSession()
            ->pageTextContains($offline_message);
        $this->drupalGet('menu_login_callback');
        $this->assertSession()
            ->pageTextContains('This is TestControllers::testLogin.');
        $this->container
            ->get('state')
            ->set('system.maintenance_mode', FALSE);
    }
    
    /**
     * Tests authenticated user login redirects.
     *
     * An authenticated user hitting 'user/login' should be redirected to 'user',
     * and 'user/register' should be redirected to the user edit page.
     */
    public function testAuthUserUserLogin() : void {
        $web_user = $this->drupalCreateUser([]);
        $this->drupalLogin($web_user);
        $this->drupalGet('user/login');
        // Check that we got to 'user'.
        $this->assertSession()
            ->addressEquals($this->loggedInUser
            ->toUrl('canonical'));
        // user/register should redirect to user/UID/edit.
        $this->drupalGet('user/register');
        $this->assertSession()
            ->addressEquals($this->loggedInUser
            ->toUrl('edit-form'));
    }
    
    /**
     * Tests theme integration.
     */
    public function testThemeIntegration() : void {
        $this->defaultTheme = 'olivero';
        $this->adminTheme = 'claro';
        
        /** @var \Drupal\Core\Extension\ThemeInstallerInterface $theme_installer */
        $theme_installer = $this->container
            ->get('theme_installer');
        $theme_installer->install([
            $this->defaultTheme,
            $this->adminTheme,
        ]);
        $this->config('system.theme')
            ->set('default', $this->defaultTheme)
            ->set('admin', $this->adminTheme)
            ->save();
        $this->doTestThemeCallbackMaintenanceMode();
        $this->doTestThemeCallbackFakeTheme();
        $this->doTestThemeCallbackAdministrative();
        $this->doTestThemeCallbackNoThemeRequested();
        $this->doTestThemeCallbackOptionalTheme();
    }
    
    /**
     * Tests theme negotiation for an administrative theme.
     */
    protected function doTestThemeCallbackAdministrative() {
        $this->drupalGet('menu-test/theme-callback/use-admin-theme');
        $this->assertSession()
            ->pageTextContains('Active theme: claro. Actual theme: claro.');
        $this->assertSession()
            ->responseContains('claro/css/base/elements.css');
    }
    
    /**
     * Tests the theme negotiation when the site is in maintenance mode.
     */
    protected function doTestThemeCallbackMaintenanceMode() {
        $this->container
            ->get('state')
            ->set('system.maintenance_mode', TRUE);
        // For a regular user, the fact that the site is in maintenance mode means
        // we expect the theme callback system to be bypassed entirely.
        $this->drupalGet('menu-test/theme-callback/use-admin-theme');
        // Check that the maintenance theme's CSS appears on the page.
        $this->assertSession()
            ->responseContains('olivero/css/base/base.css');
        // An administrator, however, should continue to see the requested theme.
        $admin_user = $this->drupalCreateUser([
            'access site in maintenance mode',
        ]);
        $this->drupalLogin($admin_user);
        $this->drupalGet('menu-test/theme-callback/use-admin-theme');
        $this->assertSession()
            ->pageTextContains('Active theme: claro. Actual theme: claro.');
        // Check that the administrative theme's CSS appears on the page.
        $this->assertSession()
            ->responseContains('claro/css/base/elements.css');
        $this->container
            ->get('state')
            ->set('system.maintenance_mode', FALSE);
    }
    
    /**
     * Tests the theme negotiation when it is set to use an optional theme.
     */
    protected function doTestThemeCallbackOptionalTheme() {
        // Request a theme that is not installed.
        $this->drupalGet('menu-test/theme-callback/use-test-theme');
        $this->assertSession()
            ->pageTextContains('Active theme: olivero. Actual theme: olivero.');
        // Check that the default theme's CSS appears on the page.
        $this->assertSession()
            ->responseContains('olivero/css/base/base.css');
        // Now install the theme and request it again.
        
        /** @var \Drupal\Core\Extension\ThemeInstallerInterface $theme_installer */
        $theme_installer = $this->container
            ->get('theme_installer');
        $theme_installer->install([
            'test_theme',
        ]);
        $this->drupalGet('menu-test/theme-callback/use-test-theme');
        $this->assertSession()
            ->pageTextContains('Active theme: test_theme. Actual theme: test_theme.');
        // Check that the optional theme's CSS appears on the page.
        $this->assertSession()
            ->responseContains('test_theme/kitten.css');
        $theme_installer->uninstall([
            'test_theme',
        ]);
    }
    
    /**
     * Tests the theme negotiation when it is set to use a theme that does not exist.
     */
    protected function doTestThemeCallbackFakeTheme() {
        $this->drupalGet('menu-test/theme-callback/use-fake-theme');
        $this->assertSession()
            ->pageTextContains('Active theme: olivero. Actual theme: olivero.');
        // Check that the default theme's CSS appears on the page.
        $this->assertSession()
            ->responseContains('olivero/css/base/base.css');
    }
    
    /**
     * Tests the theme negotiation when no theme is requested.
     */
    protected function doTestThemeCallbackNoThemeRequested() {
        $this->drupalGet('menu-test/theme-callback/no-theme-requested');
        $this->assertSession()
            ->pageTextContains('Active theme: olivero. Actual theme: olivero.');
        // Check that the default theme's CSS appears on the page.
        $this->assertSession()
            ->responseContains('olivero/css/base/base.css');
    }

}