diff --git a/test/feed_reader/rss_test.exs b/test/feed_reader/rss_test.exs
new file mode 100644
index 0000000..9e1ecf0
--- /dev/null
+++ b/test/feed_reader/rss_test.exs
@@ -0,0 +1,38 @@
+defmodule FeedReader.RSSTest do
+ use ExUnit.Case, async: true
+
+ alias FeedReader.Formats.RSS
+
+ @xml ~s(ExampleLatest newshttps://example.com/NewsNews- Storystory-1/storyWriterSummaryFull text]]>Mon, 24 Feb 2025 17:00:05 GMT
- https://example.com/secondnot a date
-
)
+
+ test "format callback normalizes feed metadata and RSS items" do
+ sink = fn event -> send(self(), event) end
+ assert {:ok, _} = parse(@xml, sink)
+ assert_receive {:feed, %FeedReader.Feed{title: "Example", categories: ["News"]}}
+ assert_receive {:item, %FeedReader.Item{title: "Story", uuid: "story-1"}}
+ assert {:ok, _} = parse("", sink)
+ end
+
+ test "stops malformed and over-budget input and rejects orphan SAX events" do
+ sink = fn _event -> :ok end
+ assert {:error, _} = parse("", sink)
+
+ assert {:ok, %{error: {:resource_limit, :max_item_bytes, 1}}} =
+ parse(@xml, sink, max_item_bytes: 1)
+
+ for {opts, events, error} <- [
+ {[max_xml_events: 0], [start_document: [], characters: "x", end_element: "item"],
+ {:resource_limit, :max_xml_events, 0}},
+ {[], [characters: "x", end_element: "item"], :invalid_sax_event}
+ ] do
+ state = RSS.new_parser_state(sink, opts)
+
+ for {event, data} <- events do
+ assert {:stop, %{error: ^error}} = RSS.handler().handle_event(event, data, state)
+ end
+ end
+ end
+
+ defp parse(xml, sink, opts \\ []),
+ do: Saxy.parse_string(xml, RSS.handler(), RSS.new_parser_state(sink, opts))
+end