news webhook posting mode: replaces py3.8 getnews (bounded state, seed-on-first-run, ssrf-guarded)

tests/test_spec_news.py

@@ -3,7 +3,7 @@
 import unittest
 from unittest.mock import AsyncMock
 
-from fjerkroa_bot.news import NewsFetcher, parse_feed, render_digest
+from fjerkroa_bot.news import NewsFetcher, NewsPoster, load_seen, parse_feed, render_digest, save_seen
 
 RSS = b"""<?xml version="1.0"?><rss><channel>
 <item><title>Game X released</title><link>https://ex.com/x</link></item>
@@ -73,3 +73,103 @@ class TestCollect(unittest.IsolatedAsyncioTestCase):
         fetcher = NewsFetcher(lambda u: None, AsyncMock(return_value=RSS))
         items = await fetcher.collect([("https://a.com", "A")], per_feed=1)
         self.assertEqual(len(items), 1)
+
+
+class TestPoster(unittest.IsolatedAsyncioTestCase):
+    def poster(self, posts):
+        async def fetch(url):
+            return RSS
+
+        async def post(hook, content):
+            posts.append((hook, content))
+
+        return NewsPoster(lambda u: None, fetch, post)
+
+    async def test_posts_unseen_then_dedups(self):
+        """NEWS-04: unseen items post to the mapped webhook; re-run posts nothing."""
+        posts = []
+        poster = self.poster(posts)
+        feeds = [("https://a.com/feed", "PS", "news")]
+        hooks = {"news": "https://discord.com/api/webhooks/x"}
+        posted, seen = await poster.run_post(feeds, hooks, set(), per_feed=5, max_per_run=8, seed_only=False)
+        self.assertEqual(posted, 2)
+        self.assertIn("PS", posts[0][1])
+        self.assertIn("https://discord.com/api/webhooks/x", posts[0][0])
+        # re-run with the accumulated seen -> nothing new
+        posts.clear()
+        posted2, _ = await poster.run_post(feeds, hooks, seen, per_feed=5, max_per_run=8, seed_only=False)
+        self.assertEqual(posted2, 0)
+        self.assertEqual(posts, [])
+
+    async def test_seed_run_posts_nothing(self):
+        """NEWS-05: seed_only marks items seen without posting."""
+        posts = []
+        poster = self.poster(posts)
+        feeds = [("https://a.com/feed", "PS", "news")]
+        posted, seen = await poster.run_post(feeds, {"news": "h"}, set(), 5, 8, seed_only=True)
+        self.assertEqual(posted, 0)
+        self.assertEqual(posts, [])
+        self.assertEqual(len(seen), 2)  # both marked seen
+
+    async def test_max_per_run_caps(self):
+        """NEWS-05: max-per-run caps posts; extras stay seen (not re-posted next run)."""
+        posts = []
+        poster = self.poster(posts)
+        feeds = [("https://a.com/feed", "PS", "news")]
+        posted, seen = await poster.run_post(feeds, {"news": "h"}, set(), per_feed=5, max_per_run=1, seed_only=False)
+        self.assertEqual(posted, 1)
+        self.assertEqual(len(seen), 2)  # both seen, only one posted
+
+    async def test_failures_survived(self):
+        """NEWS-06: SSRF-skip, fetch fail, missing webhook, post error each survive."""
+        posts = []
+
+        async def fetch(url):
+            if "boom" in url:
+                raise ValueError("boom")
+            return RSS
+
+        async def post(hook, content):
+            if hook == "bad":
+                raise RuntimeError("post failed")
+            posts.append((hook, content))
+
+        def guard(url):
+            return "refused" if "internal" in url else None
+
+        poster = NewsPoster(guard, fetch, post)
+        feeds = [
+            ("https://internal/feed", "I", "news"),  # SSRF-skipped
+            ("https://boom.com/feed", "B", "news"),  # fetch fails
+            ("https://ok.com/feed", "OK", "nowhere"),  # no webhook for channel
+            ("https://ok2.com/feed", "OK2", "news"),  # webhook raises
+        ]
+        posted, seen = await poster.run_post(feeds, {"news": "bad"}, set(), 5, 8, seed_only=False)
+        self.assertEqual(posted, 0)  # everything failed/skipped, no crash
+
+
+class TestSeenState(unittest.TestCase):
+    def test_roundtrip_and_seed_detection(self):
+        """NEWS-05: missing state -> (empty, existed=False); saved state reloads."""
+        import tempfile
+        from pathlib import Path
+
+        with tempfile.TemporaryDirectory() as tmp:
+            path = str(Path(tmp) / "state.json")
+            seen, existed = load_seen(path)
+            self.assertEqual((seen, existed), (set(), False))
+            save_seen(path, {"a", "b", "c"}, cap=5000)
+            reloaded, existed2 = load_seen(path)
+            self.assertEqual(reloaded, {"a", "b", "c"})
+            self.assertTrue(existed2)
+
+    def test_cap_bounds_state(self):
+        """NEWS-05: save keeps at most `cap` keys."""
+        import json
+        import tempfile
+        from pathlib import Path
+
+        with tempfile.TemporaryDirectory() as tmp:
+            path = str(Path(tmp) / "state.json")
+            save_seen(path, {f"k{i}" for i in range(100)}, cap=10)
+            self.assertEqual(len(json.load(open(path))), 10)