class OptionsTestBase

abstract class OptionsTestBase extends ViewsKernelTestBase {
  
  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = [
    'options',
    'options_test_views',
    'node',
    'user',
    'field',
  ];
  
  /**
   * Stores the nodes used for the different tests.
   *
   * @var array
   */
  protected $nodes = [];
  
  /**
   * Stores the field values used for the different tests.
   *
   * @var array
   */
  protected $fieldValues = [];
  
  /**
   * The used field names.
   *
   * @var string[]
   */
  protected $fieldNames;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp($import_test_views = TRUE) {
    parent::setUp();
    $this->mockStandardInstall();
    ViewTestData::createTestViews(static::class, [
      'options_test_views',
    ]);
    $settings = [];
    $settings['type'] = 'article';
    $settings['title'] = $this->randomString();
    $settings['field_test_list_string'][]['value'] = $this->fieldValues[0];
    $settings['field_test_list_integer'][]['value'] = 0;
    $node = Node::create($settings);
    $node->save();
    $this->nodes[] = $node;
    $node = $node->createDuplicate();
    $node->save();
    $this->nodes[] = $node;
  }
  
  /**
   * Provides a workaround for the inability to use the standard profile.
   *
   * @see https://www.drupal.org/node/1708692
   */
  protected function mockStandardInstall() {
    $this->installEntitySchema('user');
    $this->installEntitySchema('node');
    NodeType::create([
      'type' => 'article',
    ])->save();
    $this->fieldValues = [
      $this->randomMachineName(),
      $this->randomMachineName(),
    ];
    $this->fieldNames = [
      'field_test_list_string',
      'field_test_list_integer',
    ];
    // Create two field entities.
    FieldStorageConfig::create([
      'field_name' => $this->fieldNames[0],
      'entity_type' => 'node',
      'type' => 'list_string',
      'cardinality' => 1,
      'settings' => [
        'allowed_values' => [
          $this->fieldValues[0] => $this->fieldValues[0],
          $this->fieldValues[1] => $this->fieldValues[1],
        ],
      ],
    ])
      ->save();
    FieldStorageConfig::create([
      'field_name' => $this->fieldNames[1],
      'entity_type' => 'node',
      'type' => 'list_integer',
      'cardinality' => 1,
      'settings' => [
        'allowed_values' => [
          $this->fieldValues[0],
          $this->fieldValues[1],
        ],
      ],
    ])
      ->save();
    foreach ($this->fieldNames as $field_name) {
      FieldConfig::create([
        'field_name' => $field_name,
        'entity_type' => 'node',
        'label' => 'Test options list field',
        'bundle' => 'article',
      ])->save();
    }
  }

}