// Edit the node to upload a file.
$edit = [];
$name = 'files[' . $this->fieldName . '_0]';
- $edit[$name] = drupal_realpath($this->drupalGetTestFiles('text')[0]->uri);
+ $edit[$name] = \Drupal::service('file_system')->realpath($this->drupalGetTestFiles('text')[0]->uri);
$this->drupalPostForm('node/' . $default_language_node->id() . '/edit', $edit, t('Save'));
$last_fid_prior = $this->getLastFileId();
$edit = [];
$edit['title[0][value]'] = $this->randomMachineName();
$name = 'files[' . $this->fieldName . '_0]';
- $edit[$name] = drupal_realpath($this->drupalGetTestFiles('text')[1]->uri);
+ $edit[$name] = \Drupal::service('file_system')->realpath($this->drupalGetTestFiles('text')[1]->uri);
$this->drupalPostForm(NULL, $edit, t('Save (this translation)'));
$last_fid = $this->getLastFileId();