LanguageBlockSettingsVisibilityTest.php

<?php

namespace Drupal\Tests\language\Functional;

use Drupal\Tests\BrowserTestBase;

/**
 * Tests that the language settings on block config appears correctly.
 *
 * @group language
 */
class LanguageBlockSettingsVisibilityTest extends BrowserTestBase {
    protected static $modules = [
        'block',
        'language',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    public function testUnnecessaryLanguageSettingsVisibility() {
        $admin_user = $this->drupalCreateUser([
            'administer languages',
            'access administration pages',
            'administer blocks',
        ]);
        $this->drupalLogin($admin_user);
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm([
            'predefined_langcode' => 'hu',
        ], 'Add language');
        $this->drupalGet('admin/structure/block/add/system_menu_block:admin/stark');
        $this->assertSession()
            ->fieldNotExists("edit-visibility-language-langcodes-und");
        $this->assertSession()
            ->fieldNotExists("edit-visibility-language-langcodes-zxx");
        $this->assertSession()
            ->fieldExists("edit-visibility-language-langcodes-en");
        $this->assertSession()
            ->fieldExists("edit-visibility-language-langcodes-hu");
    }

}