setErrorMessage example

$question->setMaxAttempts(1);
        // first answer is an empty answer, we're supposed to receive the default value         $this->assertEquals('Spiderman', $questionHelper->ask($this->createStreamableInputInterfaceMock($inputStream), $output = $this->createOutputInterface(), $question));
        $this->assertOutputContains('What is your favorite superhero? [Spiderman]', $output);

        $question = new ChoiceQuestion('What is your favorite superhero?', $heroes);
        $question->setMaxAttempts(1);
        $this->assertEquals('Batman', $questionHelper->ask($this->createStreamableInputInterfaceMock($inputStream), $this->createOutputInterface(), $question));
        $this->assertEquals('Batman', $questionHelper->ask($this->createStreamableInputInterfaceMock($inputStream), $this->createOutputInterface(), $question));

        $question = new ChoiceQuestion('What is your favorite superhero?', $heroes);
        $question->setErrorMessage('Input "%s" is not a superhero!');
        $question->setMaxAttempts(2);
        $this->assertEquals('Batman', $questionHelper->ask($this->createStreamableInputInterfaceMock($inputStream), $output = $this->createOutputInterface(), $question));
        $this->assertOutputContains('Input "Fabien" is not a superhero!', $output);

        try {
            $question = new ChoiceQuestion('What is your favorite superhero?', $heroes, '1');
            $question->setMaxAttempts(1);
            $questionHelper->ask($this->createStreamableInputInterfaceMock($inputStream), $output = $this->createOutputInterface(), $question);
            $this->fail();
        } catch (\InvalidArgumentException $e) {
            $this->assertEquals('Value "Fabien" is invalid', $e->getMessage());
        }

$question = new ChoiceQuestion('What is your favorite superhero?', $heroes, '2');
        $question->setMaxAttempts(1);
        // first answer is an empty answer, we're supposed to receive the default value         $this->assertEquals('Spiderman', $questionHelper->ask($this->createStreamableInputInterfaceMock($inputStream), $this->createOutputInterface(), $question));

        $question = new ChoiceQuestion('What is your favorite superhero?', $heroes);
        $question->setMaxAttempts(1);
        $this->assertEquals('Batman', $questionHelper->ask($this->createStreamableInputInterfaceMock($inputStream), $this->createOutputInterface(), $question));
        $this->assertEquals('Batman', $questionHelper->ask($this->createStreamableInputInterfaceMock($inputStream), $this->createOutputInterface(), $question));

        $question = new ChoiceQuestion('What is your favorite superhero?', $heroes);
        $question->setErrorMessage('Input "%s" is not a superhero!');
        $question->setMaxAttempts(2);
        $this->assertEquals('Batman', $questionHelper->ask($this->createStreamableInputInterfaceMock($inputStream), $output = $this->createOutputInterface(), $question));

        rewind($output->getStream());
        $stream = stream_get_contents($output->getStream());
        $this->assertStringContainsString('Input "Fabien" is not a superhero!', $stream);

        try {
            $question = new ChoiceQuestion('What is your favorite superhero?', $heroes, '1');
            $question->setMaxAttempts(1);
            $questionHelper->ask($this->createStreamableInputInterfaceMock($inputStream), $output = $this->createOutputInterface(), $question);
            

    public function attach($file, $disposition = '', $newname = null, $mime = '')
    {
        if ($mime === '') {
            if (strpos($file, '://') === false && ! is_file($file)) {
                $this->setErrorMessage(lang('Email.attachmentMissing', [$file]));

                return false;
            }

            if (! $fp = @fopen($file, 'rb')) {
                $this->setErrorMessage(lang('Email.attachmentUnreadable', [$file]));

                return false;
            }

            $fileContent = stream_get_contents($fp);

            

->setProgressMessage(new TranslatableMarkup('Batch in progress...'))
      ->toArray();

    $this->assertEquals(new TranslatableMarkup('Batch in progress...'), $batch['progress_message']);
  }

  /** * Tests setErrorMessage(). */
  public function testSetErrorMessage() {
    $batch = (new BatchBuilder())
      ->setErrorMessage(new TranslatableMarkup('Oops. An error has occurred :('))
      ->toArray();

    $this->assertEquals(new TranslatableMarkup('Oops. An error has occurred :('), $batch['error_message']);
  }

  /** * Tests setFile(). * * @covers ::setFile */
  public function testSetFile() {
    

    $request->getSession()->set('maintenance_mode', $maintenance_mode);
    // During the update, always put the site into maintenance mode so that     // in-progress schema changes do not affect visiting users.     if (empty($maintenance_mode)) {
      $this->state->set('system.maintenance_mode', TRUE);
    }

    /** @var \Drupal\Core\Batch\BatchBuilder $batch_builder */
    $batch_builder = (new BatchBuilder())
      ->setTitle($this->t('Updating'))
      ->setInitMessage($this->t('Starting updates'))
      ->setErrorMessage($this->t('An unrecoverable error has occurred. You can find the error message below. It is advised to copy it to the clipboard for reference.'))
      ->setFinishCallback([DbUpdateController::class, 'batchFinished']);

    // Resolve any update dependencies to determine the actual updates that will     // be run and the order they will be run in.     $start = $this->getModuleUpdates();
    $updates = update_resolve_dependencies($start);

    // Store the dependencies for each update function in an array which the     // batch API can pass in to the batch operation each time it is called. (We     // do not store the entire update dependency array here because it is     // potentially very large.)

/** * @param string[] $locales * * @throws RuntimeException * * @return string */
    protected function askForAdminLocale($locales)
    {
        $question = new ChoiceQuestion('Please select your admin locale', $locales);
        $question->setErrorMessage('Locale %s is invalid.');

        $shopLocale = $this->IOHelper->ask($question);

        return $shopLocale;
    }

    /** * @param string[] $locales * * @return string */
    

if ($config_importer->alreadyImporting()) {
      $this->messenger()->addStatus($this->t('Another request may be synchronizing configuration already.'));
    }
    else {
      try {
        $sync_steps = $config_importer->initialize();
        $batch_builder = (new BatchBuilder())
          ->setTitle($this->t('Synchronizing configuration'))
          ->setFinishCallback([ConfigImporterBatch::class, 'finish'])
          ->setInitMessage($this->t('Starting configuration synchronization.'))
          ->setProgressMessage($this->t('Completed step @current of @total.'))
          ->setErrorMessage($this->t('Configuration synchronization has encountered an error.'));
        foreach ($sync_steps as $sync_step) {
          $batch_builder->addOperation([ConfigImporterBatch::class, 'process'], [$config_importer, $sync_step]);
        }

        batch_set($batch_builder->toArray());
      }
      catch (ConfigImporterException $e) {
        // There are validation errors.         $this->messenger()->addError($this->t('The configuration cannot be imported because it failed validation for the following reasons:'));
        foreach ($config_importer->getErrors() as $message) {
          $this->messenger()->addError($message);
        }

  /** * Manually checks the update status without the use of cron. */
  public function updateStatusManually() {
    $this->updateManager->refreshUpdateData();
    $batch_builder = (new BatchBuilder())
      ->setTitle(t('Checking available update data'))
      ->addOperation([$this->updateManager, 'fetchDataBatch'], [])
      ->setProgressMessage(t('Trying to check available update data ...'))
      ->setErrorMessage(t('Error checking available update data.'))
      ->setFinishCallback('update_fetch_data_finished');
    batch_set($batch_builder->toArray());
    return batch_process('admin/reports/updates');
  }

}

if ($config_importer->alreadyImporting()) {
      $this->messenger()->addError($this->t('Another request may be importing configuration already.'));
    }
    else {
      try {
        $sync_steps = $config_importer->initialize();
        $batch_builder = (new BatchBuilder())
          ->setTitle($this->t('Importing configuration'))
          ->setFinishCallback([ConfigImporterBatch::class, 'finish'])
          ->setInitMessage($this->t('Starting configuration import.'))
          ->setProgressMessage($this->t('Completed @current step of @total.'))
          ->setErrorMessage($this->t('Configuration import has encountered an error.'));
        foreach ($sync_steps as $sync_step) {
          $batch_builder->addOperation([ConfigImporterBatch::class, 'process'], [$config_importer, $sync_step]);
        }
        batch_set($batch_builder->toArray());
      }
      catch (ConfigImporterException $e) {
        // There are validation errors.         $this->messenger()->addError($this->t('The configuration import failed for the following reasons:'));
        foreach ($config_importer->getErrors() as $message) {
          $this->messenger()->addError($message);
        }
      }