protected function DrupalUnitTestCase::setUp

Sets up unit test environment.

Unlike DrupalWebTestCase::setUp(), DrupalUnitTestCase::setUp() does not install modules because tests are performed without accessing the database. Any required files must be explicitly included by the child class setUp() method.

File

drupal/modules/simpletest/drupal_web_test_case.php, line 731

Class

DrupalUnitTestCase

Test case for Drupal unit tests.

Code

protected function setUp() {
  global $conf, $language;

  // Store necessary current values before switching to the test environment.
  $this->originalFileDirectory = variable_get('file_public_path', conf_path() . '/files');
  $this->verboseDirectoryUrl = file_create_url($this->originalFileDirectory . '/simpletest/verbose');

  // Set up English language.
  $this->originalLanguage = $language;
  $this->originalLanguageDefault = variable_get('language_default');
  unset($conf['language_default']);
  $language = language_default();

  // Reset all statics so that test is performed with a clean environment.
  drupal_static_reset();

  // Generate temporary prefixed database to ensure that tests have a clean starting point.
  $this->databasePrefix = Database::getConnection()
    ->prefixTables('{simpletest' . mt_rand(1000, 1000000) . '}');

  // Create test directory.
  $public_files_directory = $this->originalFileDirectory . '/simpletest/' . substr($this->databasePrefix, 10);
  file_prepare_directory($public_files_directory, FILE_CREATE_DIRECTORY | FILE_MODIFY_PERMISSIONS);
  $conf['file_public_path'] = $public_files_directory;

  // Clone the current connection and replace the current prefix.
  $connection_info = Database::getConnectionInfo('default');
  Database::renameConnection('default', 'simpletest_original_default');
  foreach ($connection_info as $target => $value) {
    $connection_info[$target]['prefix'] = array(
      'default' => $value['prefix']['default'] . $this->databasePrefix,
    );
  }
  Database::addConnectionInfo('default', 'default', $connection_info['default']);

  // Set user agent to be consistent with web test case.
  $_SERVER['HTTP_USER_AGENT'] = $this->databasePrefix;

  // If locale is enabled then t() will try to access the database and
  // subsequently will fail as the database is not accessible.
  $module_list = module_list();
  if (isset($module_list['locale'])) {

    // Transform the list into the format expected as input to module_list().
    foreach ($module_list as &$module) {
      $module = array(
        'filename' => drupal_get_filename('module', $module),
      );
    }
    $this->originalModuleList = $module_list;
    unset($module_list['locale']);
    module_list(TRUE, FALSE, FALSE, $module_list);
  }
  $this->setup = TRUE;
}