txt: ## dist_github-niner-CompUnit-Repository-Mask.md
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  # NAME
  
  CompUnit::Repository::Mask - hide installed modules for testing.
  
  # SYNOPSIS
  
  ```
  use CompUnit::Repository::Mask :mask-module, :unmask-module;
  mask-module('Test');
  try require Test; # now fails
  unmask-module('Test');
  require Test; # succeeds
  
  ```
  
  # DESCRIPTION
  
  CompUnit::Repository::Mask helps testing code dealing with optional dependencies. It allows for masking and unmasking installed modules, so you can write tests for when the dependency is missing and for when it's installed.
  
  # AUTHOR
  
  Stefan Seifert [nine@detonation.org](mailto:nine@detonation.org)
  
  # COPYRIGHT AND LICENSE
  
  Copyright 2017 Stefan Seifert
  
  This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.
  