LanguageCustomLanguageConfigurationTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\language\Functional;

use Drupal\Core\Url;
use Drupal\Core\Language\Language;
use Drupal\Core\Language\LanguageInterface;
use Drupal\Tests\BrowserTestBase;

/**
 * Adds and configures custom languages.
 *
 * @group language
 */
class LanguageCustomLanguageConfigurationTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'language',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Functional tests for adding, editing and deleting languages.
     */
    public function testLanguageConfiguration() : void {
        // Create user with permissions to add and remove languages.
        $admin_user = $this->drupalCreateUser([
            'administer languages',
            'access administration pages',
        ]);
        $this->drupalLogin($admin_user);
        // Add custom language.
        $edit = [
            'predefined_langcode' => 'custom',
        ];
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add custom language');
        // Test validation on missing values.
        $this->assertSession()
            ->statusMessageContains('Language code field is required.', 'error');
        $this->assertSession()
            ->statusMessageContains('Language name field is required.', 'error');
        $empty_language = new Language();
        $this->assertSession()
            ->checkboxChecked('edit-direction-' . $empty_language->getDirection());
        $this->assertSession()
            ->addressEquals(Url::fromRoute('language.add'));
        // Test validation of invalid values.
        $edit = [
            'predefined_langcode' => 'custom',
            'langcode' => 'white space',
            'label' => '<strong>evil markup</strong>',
            'direction' => LanguageInterface::DIRECTION_LTR,
        ];
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add custom language');
        $this->assertSession()
            ->statusMessageContains('Language code must be a valid language tag as defined by the W3C.', 'error');
        $this->assertSession()
            ->linkExists("defined by the W3C");
        $this->assertSession()
            ->linkByHrefExists("https://www.w3.org/International/articles/language-tags/");
        $this->assertSession()
            ->statusMessageContains('Language name cannot contain any markup.', 'error');
        $this->assertSession()
            ->addressEquals(Url::fromRoute('language.add'));
        // Test adding a custom language with a numeric region code.
        $edit = [
            'predefined_langcode' => 'custom',
            'langcode' => 'es-419',
            'label' => 'Latin American Spanish',
            'direction' => LanguageInterface::DIRECTION_LTR,
        ];
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add custom language');
        $this->assertSession()
            ->statusMessageContains("The language {$edit['label']} has been created and can now be used.", 'status');
        $this->assertSession()
            ->addressEquals(Url::fromRoute('entity.configurable_language.collection'));
        // Test validation of existing language values.
        $edit = [
            'predefined_langcode' => 'custom',
            'langcode' => 'de',
            'label' => 'German',
            'direction' => LanguageInterface::DIRECTION_LTR,
        ];
        // Add the language the first time.
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add custom language');
        $this->assertSession()
            ->statusMessageContains("The language {$edit['label']} has been created and can now be used.", 'status');
        $this->assertSession()
            ->addressEquals(Url::fromRoute('entity.configurable_language.collection'));
        // Add the language a second time and confirm that this is not allowed.
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add custom language');
        $this->assertSession()
            ->statusMessageContains("The language {$edit['label']} ({$edit['langcode']}) already exists.", 'error');
        $this->assertSession()
            ->addressEquals(Url::fromRoute('language.add'));
    }

}