LocalActionTest.php

<?php

namespace Drupal\Tests\system\Functional\Menu;

use Drupal\Component\Utility\Html;
use Drupal\Core\Url;
use Drupal\Tests\BrowserTestBase;

/**
 * Tests local actions derived from router and added/altered via hooks.
 *
 * @group Menu
 */
class LocalActionTest extends BrowserTestBase {
    
    /**
     * Modules to enable.
     *
     * @var string[]
     */
    public static $modules = [
        'block',
        'menu_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        $this->drupalPlaceBlock('local_actions_block');
    }
    
    /**
     * Tests appearance of local actions.
     */
    public function testLocalAction() {
        $this->drupalGet('menu-test-local-action');
        // Ensure that both menu and route based actions are shown.
        $this->assertLocalAction([
            [
                Url::fromRoute('menu_test.local_action4'),
                'My dynamic-title action',
            ],
            [
                Url::fromRoute('menu_test.local_action4'),
                Html::escape("<script>alert('Welcome to the jungle!')</script>"),
            ],
            [
                Url::fromRoute('menu_test.local_action4'),
                Html::escape("<script>alert('Welcome to the derived jungle!')</script>"),
            ],
            [
                Url::fromRoute('menu_test.local_action2'),
                'My hook_menu action',
            ],
            [
                Url::fromRoute('menu_test.local_action3'),
                'My YAML discovery action',
            ],
            [
                Url::fromRoute('menu_test.local_action5'),
                'Title override',
            ],
        ]);
        // Test a local action title that changes based on a config value.
        $this->drupalGet(Url::fromRoute('menu_test.local_action6'));
        $this->assertLocalAction([
            [
                Url::fromRoute('menu_test.local_action5'),
                'Original title',
            ],
        ]);
        // Verify the expected cache tag in the response headers.
        $header_values = explode(' ', $this->drupalGetHeader('x-drupal-cache-tags'));
        $this->assertContains('config:menu_test.links.action', $header_values, "Found 'config:menu_test.links.action' cache tag in header");
        
        /** @var \Drupal\Core\Config\Config $config */
        $config = $this->container
            ->get('config.factory')
            ->getEditable('menu_test.links.action');
        $config->set('title', 'New title');
        $config->save();
        $this->drupalGet(Url::fromRoute('menu_test.local_action6'));
        $this->assertLocalAction([
            [
                Url::fromRoute('menu_test.local_action5'),
                'New title',
            ],
        ]);
    }
    
    /**
     * Asserts local actions in the page output.
     *
     * @param array $actions
     *   A list of expected action link titles, keyed by the hrefs.
     */
    protected function assertLocalAction(array $actions) {
        $elements = $this->xpath('//a[contains(@class, :class)]', [
            ':class' => 'button-action',
        ]);
        $index = 0;
        foreach ($actions as $action) {
            
            /** @var \Drupal\Core\Url $url */
            list($url, $title) = $action;
            // SimpleXML gives us the unescaped text, not the actual escaped markup,
            // so use a pattern instead to check the raw content.
            // This behavior is a bug in libxml, see
            // https://bugs.php.net/bug.php?id=49437.
            $this->assertPattern('@<a [^>]*class="[^"]*button-action[^"]*"[^>]*>' . preg_quote($title, '@') . '</@');
            $this->assertEqual($elements[$index]->getAttribute('href'), $url->toString());
            $index++;
        }
    }

}