SettingsFormTest.php

<?php

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

use Drupal\Tests\BrowserTestBase;

/**
 * @covers \Drupal\jsonapi\Form\JsonApiSettingsForm
 * @group jsonapi
 */
class SettingsFormTest extends BrowserTestBase {
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'jsonapi',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * Tests the JSON:API settings form.
   */
  public function testSettingsForm() : void {
    $account = $this->drupalCreateUser([
      'administer site configuration',
    ]);
    $this->drupalLogin($account);
    $this->drupalGet('/admin/config/services/jsonapi');
    $page = $this->getSession()
      ->getPage();
    $page->selectFieldOption('read_only', 'rw');
    $page->pressButton('Save configuration');
    $assert_session = $this->assertSession();
    $assert_session->pageTextContains('The configuration options have been saved.');
    $assert_session->fieldValueEquals('read_only', 'rw');
    $page->selectFieldOption('read_only', 'r');
    $page->pressButton('Save configuration');
    $assert_session->fieldValueEquals('read_only', 'r');
    $assert_session->pageTextContains('The configuration options have been saved.');
  }

}