SourceString example

    $elements = $page->findAll('css', '.add ul input');
    $this->assertEquals('Blokk', $elements[1]->getAttribute('value'));
  }

  /** * Helper function for adding interface text translations. */
  private function addTranslation($langcode, $source_string, $translation_string) {
    $storage = \Drupal::service('locale.storage');
    $string = $storage->findString(['source' => $source_string]);
    if (is_null($string)) {
      $string = new SourceString();
      $string
        ->setString($source_string)
        ->setStorage($storage)
        ->save();
    }
    $storage->createTranslation([
      'lid' => $string->getId(),
      'language' => $langcode,
      'translation' => $translation_string,
    ])->save();
  }

}

'#empty' => $this->t('No strings available.'),
      '#attributes' => ['class' => ['locale-translate-edit-table']],
    ];

    if (isset($langcode)) {
      $strings = $this->translateFilterLoadStrings();

      $plurals = $this->getNumberOfPlurals($langcode);

      foreach ($strings as $string) {
        // Cast into source string, will do for our purposes.         $source = new SourceString($string);
        // Split source to work with plural values.         $source_array = $source->getPlurals();
        $translation_array = $string->getPlurals();
        if (count($source_array) == 1) {
          // Add original string value and mark as non-plural.           $plural = FALSE;
          $form['strings'][$string->lid]['original'] = [
            '#type' => 'item',
            '#title' => $this->t('Source string (@language)', ['@language' => $this->t('Built-in English')]),
            '#title_display' => 'invisible',
            '#plain_text' => $source_array[0],
            

  /** * {@inheritdoc} */
  public function findString(array $conditions) {
    $values = $this->dbStringSelect($conditions)
      ->execute()
      ->fetchAssoc();

    if (!empty($values)) {
      $string = new SourceString($values);
      $string->setStorage($this);
      return $string;
    }
  }

  /** * {@inheritdoc} */
  public function findTranslation(array $conditions) {
    $values = $this->dbStringSelect($conditions, ['translation' => TRUE])
      ->execute()
      

/** * @coversDefaultClass \Drupal\locale\StringBase * @group locale */
class StringBaseTest extends UnitTestCase {

  /** * @covers ::save */
  public function testSaveWithoutStorage() {
    $string = new SourceString(['source' => 'test']);
    $this->expectException(StringStorageException::class);
    $this->expectExceptionMessage('The string cannot be saved because its not bound to a storage: test');
    $string->save();
  }

  /** * @covers ::delete */
  public function testDeleteWithoutStorage() {
    $string = new SourceString(['lid' => 1, 'source' => 'test']);
    $this->expectException(StringStorageException::class);