Feature: Requesting a thumb for an image from the thumb returns the thumb itself

  The freedesktop.org standard is pretty vague here.
  https://specifications.freedesktop.org/thumbnail-spec/thumbnail-spec-latest.html#DIRECTORY

  Requesting a thumb for a file from the thumb repository must not create another thumb.
  (Which would be a thumb of a thumb.)
  But the standard does not define if the size needs to be respected, or what should happen
  if the file to which the thumb belongs does not exist anymore.
  (Which would mean that missing bigger sizes can not created if requested.)

  Because this is a edge-case feature, only important to avoid producing thumbs of thumbs,
  AllMyToes keeps it simple and will just return the file that was given as input.


  Scenario Outline: Requesting a thumb for an image from the thumb repository returns the path to the input image
    Given some thumbs exist
    And the <size> thumb image file is used as input 
    And   thumbs exists for the input in standard DB
    When  allmytoes is started without further arguments
    Then  the path to the input file is returned

    Examples: all sizes
    | size         |
    | normal       |
    | large        |
    | x-large      |
    | xx-large     |