Chore: Move the search tests onto the shared indexing fixtures (#14159)

src/documents/tests/search/conftest.py

@@ -3,9 +3,12 @@ from __future__ import annotations
 from typing import TYPE_CHECKING
 
 import pytest
+import tantivy
 
 from documents.search._backend import TantivyBackend
 from documents.search._backend import reset_backend
+from documents.search._schema import build_schema
+from documents.search._tokenizer import register_tokenizers
 from documents.tests.factories import DocumentFactory
 
 if TYPE_CHECKING:
@@ -72,3 +75,23 @@ def matched_ids(backend: TantivyBackend) -> Callable[[str], set[int]]:
         return set(backend.search_ids(query, user=None))
 
     return _matched_ids
+
+
+@pytest.fixture(scope="module")
+def query_index() -> tantivy.Index:
+    """An in-memory, unstemmed index for the parse-only tests.
+
+    These never index a document, so one index per module is shared
+    read-only across that module's tests.
+    """
+    idx = tantivy.Index(build_schema(), path=None)
+    register_tokenizers(idx, "")
+    return idx
+
+
+@pytest.fixture
+def fuzzy_enabled(settings: Settings) -> None:
+    """Enable the fuzzy blend clause. The threshold doubles as a minimum
+    score filter, so it is set to 0.0: every hit passes and the test sees
+    the clause's matching behaviour, not the filter's."""
+    settings.ADVANCED_FUZZY_SEARCH_THRESHOLD = 0.0