| 1 | """Tests for the dedicated-subreddit lane in reddit_keyless (U1). |
| 2 | |
| 3 | A dedicated subreddit (the entity's home, e.g. r/Kanye for "Kanye West") is |
| 4 | wholly on-topic: pulled in full via top+hot+new listings and exempt from the |
| 5 | relevance floor, so an on-topic post whose title lacks the entity name is kept. |
| 6 | """ |
| 7 | |
| 8 | from unittest import mock |
| 9 | |
| 10 | from lib import reddit_keyless |
| 11 | |
| 12 | |
| 13 | def _post(i, date="2026-05-20", rel=0.0): |
| 14 | url = f"https://www.reddit.com/r/test/comments/{i:06d}/post_{i}/" |
| 15 | return { |
| 16 | "id": "", "title": f"Post {i}", "url": url, "score": 0, "num_comments": 0, |
| 17 | "subreddit": "test", "created_utc": None, "author": "u", "selftext": "", |
| 18 | "date": date, "engagement": {"score": 0, "num_comments": 0, "upvote_ratio": None}, |
| 19 | "relevance": rel, "why_relevant": "Reddit search", "metadata": {}, |
| 20 | } |
| 21 | |
| 22 | |
| 23 | def _listing_post(i, score, title, rel=0.0): |
| 24 | p = _post(i, rel=rel) |
| 25 | p["title"] = title |
| 26 | p["score"] = score |
| 27 | p["engagement"]["score"] = score |
| 28 | p["why_relevant"] = "Reddit listing" |
| 29 | p["metadata"] = {"post_id": f"{i:06d}"} |
| 30 | return p |
| 31 | |
| 32 | |
| 33 | def _no_enrich(): |
| 34 | return mock.patch.object( |
| 35 | reddit_keyless.reddit_shreddit, "fetch_comments", |
| 36 | return_value={"top_comments": [], "comment_insights": [], "num_comments": None}, |
| 37 | ) |
| 38 | |
| 39 | |
| 40 | class TestDedicatedLane: |
| 41 | def test_dedicated_listings_pulled_with_top_hot_new_and_marked(self): |
| 42 | ded = _listing_post(1, 2643, "What the actual fuck is this ye?") |
| 43 | ded["subreddit"] = "Kanye" # Match the requested dedicated subreddit. |
| 44 | captured = {} |
| 45 | |
| 46 | def fake_fetch(subs, depth="default", query="", sorts=None): |
| 47 | if sorts == reddit_keyless.DEDICATED_SORTS: |
| 48 | captured["sorts"] = sorts |
| 49 | captured["subs"] = subs |
| 50 | return [ded] |
| 51 | return [] |
| 52 | |
| 53 | with mock.patch.object(reddit_keyless.reddit_listing, "fetch_listings", |
| 54 | side_effect=fake_fetch), \ |
| 55 | mock.patch.object(reddit_keyless.reddit_arctic, "fetch_listings", |
| 56 | return_value=[]), \ |
| 57 | mock.patch.object(reddit_keyless.reddit_search, "search", |
| 58 | return_value=[]) as search: |
| 59 | out = reddit_keyless._discover("Kanye West", "default", None, |
| 60 | dedicated_subreddits=["Kanye"]) |
| 61 | # Dedicated subs keep their full-listing lane; no per-sub search for them. |
| 62 | assert search.call_args.kwargs["subreddits"] is None |
| 63 | assert captured["sorts"] == ["top", "hot", "new"] |
| 64 | assert captured["subs"] == ["Kanye"] |
| 65 | assert len(out) == 1 |
| 66 | assert out[0]["dedicated"] is True |
| 67 | |
| 68 | def test_dedicated_post_survives_floor_without_entity_name(self): |
| 69 | # On-topic dedicated post whose title lacks "Kanye" (relevance 0) must be |
| 70 | # kept; off-topic non-dedicated posts (relevance 0) are floored out. |
| 71 | ded = _listing_post(1, 2284, "There's 2 types of people", rel=0.0) |
| 72 | ded["dedicated"] = True |
| 73 | offtopic = [_post(10 + i, rel=0.0) for i in range(5)] |
| 74 | with mock.patch.object(reddit_keyless, "_discover", return_value=[ded] + offtopic), \ |
| 75 | _no_enrich(): |
| 76 | out = reddit_keyless.search_and_enrich("Kanye West", "2026-05-01", "2026-05-31") |
| 77 | urls = {p["url"] for p in out} |
| 78 | assert ded["url"] in urls # dedicated kept despite relevance 0 |
| 79 | assert all(o["url"] not in urls for o in offtopic) # off-topic floored |
| 80 | |
| 81 | def test_dedicated_dedup_keeps_floor_exempt_status(self): |
| 82 | # A thread present in both the dedicated lane and a broad listing keeps |
| 83 | # its dedicated (floor-exempt) flag — dedicated is merged first. |
| 84 | shared_ded = _listing_post(1, 500, "fresh thread", rel=0.0) |
| 85 | shared_ded["subreddit"] = "Kanye" # Match the requested dedicated subreddit. |
| 86 | shared_broad = _listing_post(1, 500, "fresh thread", rel=0.0) # same url/id |
| 87 | shared_broad["subreddit"] = "hiphopheads" # Match the requested broad subreddit. |
| 88 | |
| 89 | def fake_fetch(subs, depth="default", query="", sorts=None): |
| 90 | return [shared_ded] if sorts == reddit_keyless.DEDICATED_SORTS else [shared_broad] |
| 91 | |
| 92 | with mock.patch.object(reddit_keyless.reddit_listing, "fetch_listings", |
| 93 | side_effect=fake_fetch), \ |
| 94 | mock.patch.object(reddit_keyless.reddit_search, "search", return_value=[]): |
| 95 | out = reddit_keyless._discover("Kanye West", "default", ["hiphopheads"], |
| 96 | dedicated_subreddits=["Kanye"]) |
| 97 | same = [p for p in out if p["url"] == shared_ded["url"]] |
| 98 | assert len(same) == 1 |
| 99 | assert same[0].get("dedicated") is True |
| 100 | |
| 101 | def test_no_dedicated_subs_is_noop(self): |
| 102 | with mock.patch.object(reddit_keyless.reddit_search, "search", |
| 103 | return_value=[_post(1)]), \ |
| 104 | mock.patch.object(reddit_keyless.reddit_listing, "fetch_listings", |
| 105 | return_value=[]): |
| 106 | out = reddit_keyless._discover("topic", "default", ["test"]) |
| 107 | assert all(not p.get("dedicated") for p in out) |
| 108 |