RestExampleSettingsTest.php

<?php

namespace Drupal\Tests\rest_example\Funtional;

use Drupal\Tests\BrowserTestBase;

/**
 * Test the settings in Rest Example.
 *
 * @ingroup rest_example
 * @group rest_example
 * @group examples
 */
class RestExampleSettingsTest extends BrowserTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'rest_example',
    ];
    
    /**
     * The installation profile to use with this test.
     *
     * @var string
     */
    protected $profile = 'minimal';
    
    /**
     * Test that the form can be submitted.
     *
     * @throws \Drupal\Core\Entity\EntityStorageException
     */
    public function testRestExampleSettings() {
        global $base_url;
        $account = $this->drupalCreateUser();
        $this->drupalLogin($account);
        $this->drupalGet('examples/rest-client-settings');
        $edit = [
            'server_url' => $base_url,
            'server_username' => $account->get('name')->value,
            'server_password' => $account->passRaw,
        ];
        $this->drupalGet(base_path() . 'examples/rest-client-settings');
        $this->submitForm($edit, t('Save configuration'));
        $this->assertSession()
            ->pageTextContains('The configuration options have been saved.');
        $config_factory = \Drupal::configFactory();
        $rest_config = $config_factory->get('rest_example.settings');
        self::assertEquals($base_url, $rest_config->get('server_url'));
        self::assertEquals($account->get('name')->value, $rest_config->get('server_username'));
        self::assertEquals($account->passRaw, $rest_config->get('server_password'));
    }

}