ConfigTargetTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\system\FunctionalJavascript\Form;

use Drupal\FunctionalJavascriptTests\WebDriverTestBase;

/**
 * Tests forms using #config_target and #ajax together.
 *
 * @group Form
 */
class ConfigTargetTest extends WebDriverTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'form_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests #config_target with no callbacks.
     *
     * If a #config_target has no callbacks, the form can be cached.
     */
    public function testTree() : void {
        
        /** @var \Drupal\Core\KeyValueStore\KeyValueStoreExpirableInterface $key_value_expirable */
        $key_value_expirable = \Drupal::service('keyvalue.expirable')->get('form');
        $page = $this->getSession()
            ->getPage();
        $assert_session = $this->assertSession();
        $this->drupalGet('/form-test/tree-config-target');
        $this->assertCount(0, $key_value_expirable->getAll());
        $page->fillField('Nemesis', 'Test');
        $assert_session->pageTextNotContains('Option 3');
        $page->selectFieldOption('test1', 'Option 2');
        $assert_session->waitForText('Option 3');
        $assert_session->pageTextContains('Option 3');
        // The ajax request should result in the form being cached.
        $this->assertCount(1, $key_value_expirable->getAll());
        $page->pressButton('Save configuration');
        $assert_session->pageTextContains('The configuration options have been saved.');
        $assert_session->fieldValueEquals('Nemesis', 'Test');
        // The form cache will be deleted after submission.
        $this->assertCount(0, $key_value_expirable->getAll());
    }
    
    /**
     * Tests #config_target with callbacks.
     *
     * If a #config_target has closures as callbacks, form cache will be disabled.
     */
    public function testNested() : void {
        
        /** @var \Drupal\Core\KeyValueStore\KeyValueStoreExpirableInterface $key_value_expirable */
        $key_value_expirable = \Drupal::service('keyvalue.expirable')->get('form');
        $page = $this->getSession()
            ->getPage();
        $assert_session = $this->assertSession();
        $this->drupalGet('/form-test/nested-config-target');
        $this->assertCount(0, $key_value_expirable->getAll());
        $page->fillField('First choice', 'Apple');
        $page->fillField('Second choice', 'Kiwi');
        $assert_session->pageTextNotContains('Option 3');
        $page->selectFieldOption('test1', 'Option 2');
        $assert_session->waitForText('Option 3');
        $assert_session->pageTextContains('Option 3');
        $this->assertCount(0, $key_value_expirable->getAll());
        $page->pressButton('Save configuration');
        $assert_session->statusMessageContains('The configuration options have been saved.', 'status');
        $assert_session->fieldValueEquals('First choice', 'Apple');
        $assert_session->fieldValueEquals('Second choice', 'Kiwi');
        $this->assertCount(0, $key_value_expirable->getAll());
    }

}