fix(IpynbOutput)!: rank always favors output format

Previously, both `fmt == f` case and Image have a rank of 1.
In the end, e.g. from ipynb to html conversion,
if both html and image exists, it actually prefers the image.
This commit changes this, so that fmt == f is always highest rank,
and rank never collides.
This is achieved by keeping fmt == f case having rank 1,
and every other rank increased by 1.

1 files changed, 2 insertions, 0 deletions

diff --git a/test/Tests/Old.hs b/test/Tests/Old.hs
index 1d5b0b04e..e03d94e85 100644
--- a/test/Tests/Old.hs
+++ b/test/Tests/Old.hs
@@ -225,6 +225,8 @@ tests pandocPath =
     , test' "writer" ["-f", "native", "-t", "ipynb",
                       "--wrap=preserve"]
       "ipynb/mime.native" "ipynb/mime.out.ipynb"
+    , test' "reader" ["-f", "ipynb", "-t", "html"]
+      "ipynb/rank.ipynb" "ipynb/rank.out.html"
     ]
   ]
  where