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.
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;
}