Emoji: Unify tag building, fix tests.

lib/pleroma/emoji.ex

@@ -189,6 +189,18 @@ defmodule Pleroma.Emoji do
 
   def emoji_url(_), do: nil
 
+  def build_emoji_tag({name, url}) do
+    url = URI.encode(url)
+
+    %{
+      "icon" => %{"url" => "#{url}", "type" => "Image"},
+      "name" => ":" <> name <> ":",
+      "type" => "Emoji",
+      "updated" => "1970-01-01T00:00:00Z",
+      "id" => url
+    }
+  end
+
   def emoji_name_with_instance(name, url) do
     url = url |> URI.parse() |> Map.get(:host)
     "#{name}@#{url}"

lib/pleroma/web/activity_pub/builder.ex

@@ -64,15 +64,7 @@ defmodule Pleroma.Web.ActivityPub.Builder do
 
   defp add_emoji_content(data, emoji, url) do
     tag = [
-      %{
-        "id" => url,
-        "type" => "Emoji",
-        "name" => Emoji.maybe_quote(emoji),
-        "icon" => %{
-          "type" => "Image",
-          "url" => url
-        }
-      }
+      Emoji.build_emoji_tag({Emoji.maybe_strip_name(emoji), url})
     ]
 
     data

lib/pleroma/web/activity_pub/transmogrifier.ex

@@ -8,6 +8,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   """
   @behaviour Pleroma.Web.ActivityPub.Transmogrifier.API
   alias Pleroma.Activity
+  alias Pleroma.Emoji
   alias Pleroma.EctoType.ActivityPub.ObjectValidators
   alias Pleroma.Maps
   alias Pleroma.Object
@@ -1005,32 +1006,20 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   def take_emoji_tags(%User{emoji: emoji}) do
     emoji
     |> Map.to_list()
-    |> Enum.map(&build_emoji_tag/1)
+    |> Enum.map(&Emoji.build_emoji_tag/1)
   end
 
   # TODO: we should probably send mtime instead of unix epoch time for updated
   def add_emoji_tags(%{"emoji" => emoji} = object) do
     tags = object["tag"] || []
 
-    out = Enum.map(emoji, &build_emoji_tag/1)
+    out = Enum.map(emoji, &Emoji.build_emoji_tag/1)
 
     Map.put(object, "tag", tags ++ out)
   end
 
   def add_emoji_tags(object), do: object
 
-  def build_emoji_tag({name, url}) do
-    url = URI.encode(url)
-
-    %{
-      "icon" => %{"url" => "#{url}", "type" => "Image"},
-      "name" => ":" <> name <> ":",
-      "type" => "Emoji",
-      "updated" => "1970-01-01T00:00:00Z",
-      "id" => url
-    }
-  end
-
   def set_conversation(object) do
     Map.put(object, "conversation", object["context"])
   end