class SystemValidTokenTest extends DrupalUnitTestCase {

  /**
   * Flag to indicate whether PHP error reportings should be asserted.
   *
   * @var bool
   */
  protected $assertErrors = TRUE;

  public static function getInfo() {
    return array(
      'name' => 'Token validation',
      'description' => 'Test the security token validation.',
      'group' => 'System',
    );
  }

  /**
   * Tests invalid invocations of drupal_valid_token() that must return FALSE.
   */
  public function testTokenValidation() {
    // The following checks will throw PHP notices, so we disable error
    // assertions.
    $this->assertErrors = FALSE;
    $this->assertFalse(drupal_valid_token(NULL, new stdClass()), 'Token NULL, value object returns FALSE.');
    $this->assertFalse(drupal_valid_token(0, array()), 'Token 0, value array returns FALSE.');
    $this->assertFalse(drupal_valid_token('', array()), "Token '', value array returns FALSE.");
    $this->assertFalse('' === drupal_get_token(array()), 'Token generation does not return an empty string on invalid parameters.');
    $this->assertErrors = TRUE;

    $this->assertFalse(drupal_valid_token(TRUE, 'foo'), 'Token TRUE, value foo returns FALSE.');
    $this->assertFalse(drupal_valid_token(0, 'foo'), 'Token 0, value foo returns FALSE.');
  }

  /**
   * Overrides DrupalTestCase::errorHandler().
   */
  public function errorHandler($severity, $message, $file = NULL, $line = NULL) {
    if ($this->assertErrors) {
      return parent::errorHandler($severity, $message, $file, $line);
    }
    return TRUE;
  }
}