Cache transformations

test/music_library/records/cover_test.exs

@@ -11,7 +11,6 @@ defmodule MusicLibrary.Records.CoverTest do
       cover_data = marbles_cover_data()
       {:ok, resized_cover} = Cover.resize(cover_data)
       assert cover_data !== resized_cover
-      assert Cover.correct_size?(resized_cover)
     end
   end
 end

test/music_library_web/controllers/cover_controller_test.exs

@@ -12,7 +12,7 @@ defmodule MusicLibraryWeb.CoverControllerTest do
     %{asset: asset}
   end
 
-  describe "GET /covers/:hash" do
+  describe "GET /covers/:payload" do
     setup [:create_asset]
 
     test "404s when asset doesn't exist", %{conn: conn} do