class ReportFieldsTest

class ReportFieldsTest extends UITestBase {
  
  /**
   * {@inheritdoc}
   */
  public static $testViews = [
    'test_field_field_test',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'entity_test',
  ];
  
  /**
   * Tests the Views fields report page.
   */
  public function testReportFields() {
    $this->drupalGet('admin/reports/fields/views-fields');
    $this->assertSession()
      ->pageTextContains('Used in views');
    $this->assertSession()
      ->pageTextContains('No fields have been used in views yet.');
    // Set up the field_test field.
    $field_storage = FieldStorageConfig::create([
      'field_name' => 'field_test',
      'type' => 'integer',
      'entity_type' => 'entity_test',
    ]);
    $field_storage->save();
    $field = FieldConfig::create([
      'field_name' => 'field_test',
      'entity_type' => 'entity_test',
      'bundle' => 'entity_test',
    ]);
    $field->save();
    // Assert that the newly created field appears in the overview.
    $this->drupalGet('admin/reports/fields/views-fields');
    $this->assertSession()
      ->responseContains('<td>field_test</td>');
    $this->assertSession()
      ->responseContains('>test_field_field_test</a>');
    $this->assertSession()
      ->pageTextContains('Used in views');
  }

}