private function resolveChDir(InputInterface $input, OutputInterface $output)
    {
        $configurationLocator = new ConfigurationLocator();

        try {
            $configurationLocator->locate('.');
            return null;
        } catch (\RuntimeException $e) {
            $output->writeln($e->getMessage());
            $frameworkConfigurationQuestion = $this->createFrameworkConfigurationQuestion($configurationLocator);
            $chDir = $this->getQuestionHelper()->ask($input, $output, $frameworkConfigurationQuestion);

            if (!$chDir) {
                throw new RuntimeException('Could not create "humbug.json.dist". Cannot locate phpunit.xml(.dist) file.');
            }

            return $chDir;
        }
    }
private function resolveChDir(InputInterface $input, OutputInterface $output)
    {
        $configurationLocator = new ConfigurationLocator();

        try {
            $configurationLocator->locate('.');
            return null;
        } catch (\RuntimeException $e) {
            $output->writeln($e->getMessage());
            $frameworkConfigurationQuestion = $this->createFrameworkConfigurationQuestion($configurationLocator);
            $chDir = $this->getQuestionHelper()->ask($input, $output, $frameworkConfigurationQuestion);

            if (!$chDir) {
                throw new RuntimeException('Could not create "humbug.json.dist". Cannot locate phpunit.xml(.dist) file.');
            }

            return $chDir;
        }
    }
@param InputInterface $input
@param OutputInterface $output
@return string|null

@throws \RuntimeException