PluginSettingsBaseTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\Core\Field;

use Drupal\Core\Field\PluginSettingsBase;
use Drupal\Tests\UnitTestCase;

/**
 * @coversDefaultClass \Drupal\Core\Field\PluginSettingsBase
 * @group Field
 */
class PluginSettingsBaseTest extends UnitTestCase {
  
  /**
   * @covers ::getThirdPartySettings
   */
  public function testGetThirdPartySettings() : void {
    $plugin_settings = new TestPluginSettingsBase();
    $this->assertSame([], $plugin_settings->getThirdPartySettings());
    $this->assertSame([], $plugin_settings->getThirdPartySettings('test'));
    $plugin_settings->setThirdPartySetting('test', 'foo', 'bar');
    $this->assertSame([
      'foo' => 'bar',
    ], $plugin_settings->getThirdPartySettings('test'));
    $this->assertSame([], $plugin_settings->getThirdPartySettings('test2'));
  }

}

/**
 * Stub class for testing PluginSettingsBase.
 */
class TestPluginSettingsBase extends PluginSettingsBase {
  public function __construct() {
  }

}