Improve design so existing tests do not break

lib/pleroma/http.ex

@@ -115,11 +115,20 @@ defmodule Pleroma.HTTP do
   end
 
   defp adapter_middlewares(_, extra_middleware) do
-    if Pleroma.Config.get(:env) == :test do
-      # Emulate redirects in test env, which are handled by adapters in other environments
-      default_middleware()
-    else
-      extra_middleware
+    # A lot of tests are written expecting unencoded URLs
+    # and the burden of fixing that is high. Also it makes
+    # them hard to read. Tests will opt-in when we want to validate
+    # the encoding is being done correctly.
+    cond do
+      Pleroma.Config.get(:env) == :test and Pleroma.Config.get(:test_url_encoding) ->
+        default_middleware()
+
+      Pleroma.Config.get(:env) == :test ->
+        # Emulate redirects in test env, which are handled by adapters in other environments
+        [Tesla.Middleware.FollowRedirects]
+
+      true ->
+        extra_middleware
     end
   end
 

lib/pleroma/tesla/middleware/encode_url.ex

@@ -17,15 +17,7 @@ defmodule Pleroma.Tesla.Middleware.EncodeUrl do
 
   @impl Tesla.Middleware
   def call(%Tesla.Env{url: url} = env, next, _) do
-    url =
-      URI.parse(url)
-      |> then(fn parsed ->
-        path = encode_path(parsed.path)
-        query = encode_query(parsed.query)
-
-        %{parsed | path: path, query: query}
-      end)
-      |> URI.to_string()
+    url = encode_url(url)
 
     env = %{env | url: url}
 
@@ -35,6 +27,17 @@ defmodule Pleroma.Tesla.Middleware.EncodeUrl do
     end
   end
 
+  defp encode_url(url) when is_binary(url) do
+    URI.parse(url)
+    |> then(fn parsed ->
+      path = encode_path(parsed.path)
+      query = encode_query(parsed.query)
+
+      %{parsed | path: path, query: query}
+    end)
+    |> URI.to_string()
+  end
+
   defp encode_path(nil), do: nil
 
   defp encode_path(path) when is_binary(path) do

test/pleroma/http_test.exs

@@ -72,6 +72,8 @@ defmodule Pleroma.HTTPTest do
   end
 
   test "URL encoding properly encodes URLs with spaces" do
+    clear_config(:test_url_encoding, true)
+
     url_with_space = "https://tsundere.love/emoji/Pack 1/koronebless.png"
 
     result = HTTP.get(url_with_space)