fix: find next rating page

tests/test_imdb.py

@@ -65,3 +65,20 @@ async def test_load_top_250(monkeypatch):
     movie_ids = await imdb.load_top_250()
     assert len(movie_ids) == 250
     assert all(id_.startswith("tt") for id_ in movie_ids)
+
+
+@pytest.mark.asyncio
+async def test_load_ratings_page(monkeypatch):
+    with bz2.open(fixturesdir / "ratings-ur655321.html.bz2", "rb") as f:
+        html = f.read()
+    soup = bs4.BeautifulSoup(html, "html5lib")
+
+    monkeypatch.setattr(imdb, "asoup_from_url", AsyncMock(return_value=soup))
+
+    page = await imdb.load_ratings_page("fakeurl")
+    assert len(page.ratings) == 100
+    assert page.imdb_user_id is not None
+    assert page.imdb_user_id == "ur655321"
+    assert page.imdb_user_name == "AlexUltra"
+    assert page.next_page_url is not None
+    assert page.next_page_url.startswith("/user/ur655321/ratings?")