Firstly, no plugins, nothing to cleanup.
  
    $ antigen-cleanup --force
    You don't have any bundles.

  Load the plugins.

    $ antigen-bundle $PLUGIN_DIR &> /dev/null
    $ antigen-bundle $PLUGIN_DIR2 &> /dev/null

  
  Check the listing.
  
    $ antigen-list

    */test-plugin / plugin true (glob)

    */test-plugin2 / plugin true (glob)

  Nothing should be available for cleanup.
  
    $ antigen-cleanup --force
    You don't have any unidentified bundles.

  Clear out the bundles record.
  
    $ _ANTIGEN_BUNDLE_RECORD=""
  
  Check the listing, after clearing the record.
  
    $ antigen-list
    You don't have any bundles.
    [1]
  
  Confirm the plugin directory exists.
  
    $ ls dot-antigen/repos | wc -l

    2

  
  Do the cleanup.
  
    $ antigen-cleanup --force
    You have clones for the following repos, but are not used.
      */test-plugin (glob)

      */test-plugin2 (glob)

    
    
    Deleting clone for */test-plugin... done. (glob)

    Deleting clone for */test-plugin2... done. (glob)

  
  Check the listing, after cleanup.
  
    $ antigen-list
    You don't have any bundles.
    [1]
  
  Confirm the plugin directory does not exist after cleanup.
  
    $ ls dot-antigen/repos | wc -l
    0