Merge pull request #5204 from Ohualtex/fix/search-query-unicode-entity-names

fix(search): extract non-ASCII capitalized names in _extract_entities

tests/test_search_query_unicode_names.py

@@ -0,0 +1,31 @@
+"""Regression: _extract_entities must find non-ASCII capitalized names.
+
+The name extractor used the ASCII-only class [A-Z][a-zA-Z]+, so a query like
+"İstanbul weather" or "Zürich hotels" yielded no name entities at all, and
+"São Paulo" lost "São" — non-English/accented place and proper names were
+silently dropped from query enhancement. Detection is now Unicode-aware;
+ASCII behaviour (including camelCase mid-word capitals not counting as names)
+is preserved.
+"""
+from services.search.query import _extract_entities
+
+
+def _names(q):
+    return _extract_entities(q)["names"]
+
+
+def test_non_ascii_names_are_extracted():
+    assert "İstanbul" in _names("İstanbul weather")
+    assert "Zürich" in _names("Zürich hotels")
+    assert set(_names("trip to São Paulo")) >= {"São", "Paulo"}
+
+
+def test_ascii_names_unchanged():
+    assert _names("What did Alice do in 2024") == ["Alice"]
+    assert _names("news about OpenAI and Google") == ["OpenAI", "Google"]
+
+
+def test_lowercase_camelcase_and_numbers_are_not_names():
+    assert _names("the iphone price") == []
+    assert _names("iPhone price") == []       # mid-word capital is not a name
+    assert _names("top 50 albums") == []