jwage / phpchunkit

        return $listener;

    }

    public function setRootDir(string $rootDir) : self

    {

        if (!is_dir($rootDir)) {

            throw new \InvalidArgumentException(

                sprintf('Root directory "%s" does not exist.', $rootDir)

            );

        }

        $this->rootDir = realpath($rootDir);

        return $this;

    }

    public function getRootDir() : string

    {

        return $this->watchDirectories;

    }

    public function setTestsDirectory(string $testsDirectory) : self

    {

        if (!is_dir($testsDirectory)) {

            throw new \InvalidArgumentException(

                sprintf('Tests directory "%s" does not exist.', $testsDirectory)

            );

        }

        $this->testsDirectory = realpath($testsDirectory);

        return $this;

    }

    public function getTestsDirectory() : string

    {