add factory for query analyzer

test/python/api/search/test_query_analyzer_factory.py

@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+# This file is part of Nominatim. (https://nominatim.org)
+#
+# Copyright (C) 2023 by the Nominatim developer community.
+# For a full list of authors see the git log.
+"""
+Tests for query analyzer creation.
+"""
+from pathlib import Path
+
+import pytest
+
+from nominatim.api import NominatimAPIAsync
+from nominatim.api.search.query_analyzer_factory import make_query_analyzer
+from nominatim.api.search.icu_tokenizer import ICUQueryAnalyzer
+
+@pytest.mark.asyncio
+async def test_import_icu_tokenizer(table_factory):
+    table_factory('nominatim_properties',
+                  definition='property TEXT, value TEXT',
+                  content=(('tokenizer', 'icu'),
+                           ('tokenizer_import_normalisation', ':: lower();'),
+                           ('tokenizer_import_transliteration', "'1' > '/1/'; 'ä' > 'ä '")))
+
+    api = NominatimAPIAsync(Path('/invalid'), {})
+    async with api.begin() as conn:
+        ana = await make_query_analyzer(conn)
+
+        assert isinstance(ana, ICUQueryAnalyzer)
+    await api.close()
+
+
+@pytest.mark.asyncio
+async def test_import_missing_property(table_factory):
+    api = NominatimAPIAsync(Path('/invalid'), {})
+    table_factory('nominatim_properties',
+                  definition='property TEXT, value TEXT')
+
+    async with api.begin() as conn:
+        with pytest.raises(ValueError, match='Property.*not found'):
+            await make_query_analyzer(conn)
+    await api.close()
+
+
+@pytest.mark.asyncio
+async def test_import_missing_module(table_factory):
+    api = NominatimAPIAsync(Path('/invalid'), {})
+    table_factory('nominatim_properties',
+                  definition='property TEXT, value TEXT',
+                  content=(('tokenizer', 'missing'),))
+
+    async with api.begin() as conn:
+        with pytest.raises(RuntimeError, match='Tokenizer not found'):
+            await make_query_analyzer(conn)
+    await api.close()
+