Fix umasks in chmod() calls

Author: vicb

Filesystem.php

@@ -112,7 +112,7 @@ public function remove($files)
  public function chmod($files, $mode, $umask = 0000)
  {
  foreach ($this->toIterator($files) as $file) {
- chmod($file, $mode ^ $umask);
+ chmod($file, $mode & ~$umask);
  }
  }
 

Tests/FilesystemTest.php

@@ -332,8 +332,8 @@ public function testChmodAppliesUmask()
  $file = $this->workspace.DIRECTORY_SEPARATOR.'file';
  touch($file);
 
- $this->filesystem->chmod($file, 0777, 0022);
- $this->assertEquals(755, $this->getFilePermisions($file));
+ $this->filesystem->chmod($file, 0770, 0022);
+ $this->assertEquals(750, $this->getFilePermisions($file));
  }
 
  public function testChmodChangesModeOfArrayOfFiles()