protected function runIncludedSuites($suites, $parent_dir)
    {
        foreach ($suites as $relativePath) {
            $current_dir = rtrim($parent_dir, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR . $relativePath;
            $config = Configuration::config($current_dir);
            $suites = Configuration::suites();

            $namespace = $this->currentNamespace();
            $this->output->writeln(
                "\n<fg=white;bg=magenta>\n[$namespace]: tests from $current_dir\n</fg=white;bg=magenta>"
            );

            $this->executed += $this->runSuites($suites, $this->options['skip']);
            if (!empty($config['include'])) {
                $this->runIncludedSuites($config['include'], $current_dir);
            }
        }
    }