Feature: When creating thumbs for images with Exif orientation, apply the orientation to the thumbs
  JPEG and some other image formats can have Exif meta data (https://en.wikipedia.org/wiki/Exif)
  which may include an orientation attribute, specifying how an image needs to be rotated or mirrored
  to get the correct representation.

  If such an orientation tag is given in the input file's Exif data, the thumbnail must be created
  with the corrective rotation/mirroring operations as described by that tag.



  Scenario Outline: Create thumbs from JPEG with Exif orientation tag
    Given a JPEG image as input
    And the input is <mirror> mirrored and rotated by <rotate> degrees counter-clockwise
    And the input image has Exif orientation <orientation_value>
    And no thumbs exist
    When allmytoes is started without further arguments
    Then the path to the large thumb is returned
    And valid thumb exist for size large
    And no thumb exists for sizes other than large

    Examples: Exif orientation and their transformation
      | orientation_value | mirror         | rotate         |
      | 1                 | not            | 0              |
      | 2                 | horizontally   | 0              |
      | 3                 | not            | 180            |
      | 4                 | horizontally   | 180            |
      | 5                 | horizontally   | 90             |
      | 6                 | not            | 90             |
      | 7                 | horizontally   | 270            |
      | 8                 | not            | 270            |