class Headdesk::Checks::Teak::Api21Icon

Check to make sure that an APK, which uses Teak, has an API 21+ icon.

Public Instance Methods

call() click to toggle source

:reek: NilCheck and :reek:UncommunicativeVariableName { accept: ['icon_v21'] }

# File lib/headdesk/checks/teak/api21_icon.rb, line 17
def call
  skip_check if: -> { apk.min_sdk 21 }

  icon = apk.resources
            .values(v: 20)
            .drawable.io_teak_small_notification_icon
  icon_v21 = apk.resources
                .values(v: 21)
                .drawable.io_teak_small_notification_icon
  export icon: icon, icon_v21: icon_v21

  describe "APK contains a drawable for 'io_teak_small_notification_icon'"
  fail_check if: -> { icon.nil? || icon_v21.nil? }

  describe "'io_teak_small_notification_icon' for v21 is different from < v21"
  fail_check unless: -> { icon != icon_v21 }

  resolutions = [['drawable-mdpi', 24], ['drawable-hdpi', 36], ['drawable-xhdpi', 48],
                 ['drawable-xxhdpi', 72], ['drawable-xxxhdpi', 96]]
  resolutions.each do |rname, size|
    resource_file = icon_v21.sub('@drawable', "res/#{rname}") + '.png'
    fail_check unless: -> { apk.resources.file?(resource_file) }

    describe "'#{resource_file}' is #{size}x#{size}"
    image = ChunkyPNG::Image.from_file(apk.resources.path_for(resource_file))
    fail_check unless: -> { size == image.width && size == image.height }
  end
end