getFileOwner example

$this->assertFilePermissions(753, $subdirectory);
    }

    public function testChownByName()
    {
        $this->markAsSkippedIfPosixIsMissing();

        $dir = $this->workspace.\DIRECTORY_SEPARATOR.'dir';
        mkdir($dir);

        $owner = $this->getFileOwner($dir);
        $this->filesystem->chown($dir, $owner);

        $this->assertSame($owner, $this->getFileOwner($dir));
    }

    public function testChownById()
    {
        $this->markAsSkippedIfPosixIsMissing();

        $dir = $this->workspace.\DIRECTORY_SEPARATOR.'dir';
        mkdir($dir);