/**
  * @param File[] $files
  * @param string $compressTo
  *
  * @return string
  */
 private function createCommand($files, $compressTo)
 {
     $baseFolder = $this->deepestCommonFolderHelper->findDeepest($files);
     $filesToCompress = [];
     foreach ($files as $file) {
         $filePathFromBaseFolder = substr($file->getPath(), strlen($baseFolder) + 1);
         $filesToCompress[] = escapeshellarg($filePathFromBaseFolder);
     }
     $filesToCompressInline = implode(' ', $filesToCompress);
     return $this->compressCommand($compressTo, $baseFolder, $filesToCompressInline);
 }
 /** @test */
 public function testFolderEndsWithoutDash()
 {
     $deepestFolder = $this->helper->findDeepest([new File('/folder-1/folder-2/file1.txt')]);
     $this->assertNotEquals('/', substr($deepestFolder, -1));
 }