feat: RSS service — feedparser fetch, cache, prune

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/test_rss_service.py

@@ -0,0 +1,42 @@
+import pytest
+from unittest.mock import patch, MagicMock
+
+
+def test_extract_item_fields():
+    """extract_item() should pull title, link, id, summary from a feedparser entry."""
+    from fabledassistant.services.rss import extract_item
+    entry = MagicMock()
+    entry.get = lambda k, d="": {"title": "Test Post", "link": "https://example.com/1",
+                                  "id": "guid-1", "summary": "A summary"}.get(k, d)
+    entry.published_parsed = None
+    item = extract_item(entry)
+    assert item["title"] == "Test Post"
+    assert item["url"] == "https://example.com/1"
+    assert item["guid"] == "guid-1"
+    assert item["content"] == "A summary"
+
+
+def test_extract_item_truncates_content():
+    """extract_item() should truncate content to 2000 chars."""
+    from fabledassistant.services.rss import extract_item
+    entry = MagicMock()
+    entry.get = lambda k, d="": {"summary": "x" * 3000, "title": "", "link": "", "id": "g"}.get(k, d)
+    entry.published_parsed = None
+    item = extract_item(entry)
+    assert len(item["content"]) == 2000
+
+
+def test_extract_item_prefers_content_over_summary():
+    """extract_item() should prefer 'content' field over 'summary' when present."""
+    from fabledassistant.services.rss import extract_item
+    entry = MagicMock()
+    content_obj = MagicMock()
+    content_obj.value = "Full content here"
+    entry.get = lambda k, d="": {
+        "title": "T", "link": "http://x.com", "id": "g",
+        "summary": "Short summary",
+    }.get(k, d)
+    entry.content = [content_obj]
+    entry.published_parsed = None
+    item = extract_item(entry)
+    assert item["content"] == "Full content here"