Update

test/nulla_web/controllers/note_controller_test.exs

@@ -71,5 +71,59 @@ defmodule NullaWeb.NoteControllerTest do
       assert is_map(response["contentMap"])
       assert is_list(response["attachment"])
     end
+
+    test "renders HTML if Accept header is regular", %{conn: conn} do
+      {publicKeyPem, _privateKeyPem} = KeyGen.gen()
+
+      {:ok, actor} =
+        Actor.create_actor(%{
+          domain: "localhost",
+          ap_id: "http://localhost/users/test",
+          type: "Person",
+          following: "http://localhost/users/test/following",
+          followers: "http://localhost/users/test/followers",
+          inbox: "http://localhost/users/test/inbox",
+          outbox: "http://localhost/users/test/outbox",
+          featured: "http://localhost/users/test/collections/featured",
+          featuredTags: "http://localhost/users/test/collections/tags",
+          preferredUsername: "test",
+          name: "Test",
+          summary: "Test User",
+          url: "http://localhost/@test",
+          manuallyApprovesFollowers: false,
+          discoverable: true,
+          indexable: true,
+          published: DateTime.utc_now(),
+          memorial: false,
+          publicKey:
+            Jason.OrderedObject.new(
+              id: "http://localhost/users/test#main-key",
+              owner: "http://localhost/users/test",
+              publicKeyPem: publicKeyPem
+            ),
+          endpoints: Jason.OrderedObject.new(sharedInbox: "http://localhost/inbox")
+        })
+
+      note_id = Snowflake.next_id()
+
+      {:ok, note} =
+        Note.create_note(%{
+          id: note_id,
+          url: "#{actor.url}/#{note_id}",
+          content: "Hello World from Nulla!",
+          language: "en",
+          actor_id: actor.id
+        })
+
+      conn = get(conn, ~p"/users/test/notes/#{note.id}")
+
+      assert html_response(conn, 200) =~ note.content
+    end
+
+    test "returns 404 if note not found", %{conn: conn} do
+      conn = get(conn, ~p"/users/test/notes/nonexistent")
+
+      assert json_response(conn, 404)["error"] == "Not Found"
+    end
   end
 end