Files
Nominatim/test/python/api/search/test_icu_query_analyzer.py
Sarah Hoffmann 497e27bb9a move partial token into a separate field in the query struct
There is exactly one token to be expected and the token is usually
present.
2025-04-11 08:57:34 +02:00

201 lines
6.4 KiB
Python

# SPDX-License-Identifier: GPL-3.0-or-later
#
# This file is part of Nominatim. (https://nominatim.org)
#
# Copyright (C) 2025 by the Nominatim developer community.
# For a full list of authors see the git log.
"""
Tests for query analyzer for ICU tokenizer.
"""
import pytest
import pytest_asyncio
from nominatim_api import NominatimAPIAsync
from nominatim_api.search.query import Phrase
import nominatim_api.search.query as qmod
import nominatim_api.search.icu_tokenizer as tok
from nominatim_api.logging import set_log_output, get_and_disable
async def add_word(conn, word_id, word_token, wtype, word, info=None):
t = conn.t.meta.tables['word']
await conn.execute(t.insert(), {'word_id': word_id,
'word_token': word_token,
'type': wtype,
'word': word,
'info': info})
def make_phrase(query):
return [Phrase(qmod.PHRASE_ANY, s) for s in query.split(',')]
@pytest_asyncio.fixture
async def conn(table_factory):
""" Create an asynchronous SQLAlchemy engine for the test DB.
"""
table_factory('nominatim_properties',
definition='property TEXT, value TEXT',
content=(('tokenizer_import_normalisation', ':: lower();'),
('tokenizer_import_transliteration', "'1' > '/1/'; 'ä' > 'ä '")))
table_factory('word',
definition='word_id INT, word_token TEXT, type TEXT, word TEXT, info JSONB')
async with NominatimAPIAsync() as api:
async with api.begin() as conn:
yield conn
@pytest.mark.asyncio
async def test_empty_phrase(conn):
ana = await tok.create_query_analyzer(conn)
query = await ana.analyze_query([])
assert len(query.source) == 0
assert query.num_token_slots() == 0
@pytest.mark.asyncio
async def test_single_phrase_with_unknown_terms(conn):
ana = await tok.create_query_analyzer(conn)
await add_word(conn, 1, 'foo', 'w', 'FOO')
query = await ana.analyze_query(make_phrase('foo BAR'))
assert len(query.source) == 1
assert query.source[0].ptype == qmod.PHRASE_ANY
assert query.source[0].text == 'foo bar'
assert query.num_token_slots() == 2
assert query.nodes[0].partial.token == 1
assert query.nodes[1].partial is None
@pytest.mark.asyncio
async def test_multiple_phrases(conn):
ana = await tok.create_query_analyzer(conn)
await add_word(conn, 1, 'one', 'w', 'one')
await add_word(conn, 2, 'two', 'w', 'two')
await add_word(conn, 100, 'one two', 'W', 'one two')
await add_word(conn, 3, 'three', 'w', 'three')
query = await ana.analyze_query(make_phrase('one two,three'))
assert len(query.source) == 2
@pytest.mark.asyncio
async def test_splitting_in_transliteration(conn):
ana = await tok.create_query_analyzer(conn)
await add_word(conn, 1, '', 'W', 'ma')
await add_word(conn, 2, 'fo', 'W', 'fo')
query = await ana.analyze_query(make_phrase('mäfo'))
assert query.num_token_slots() == 2
assert query.nodes[0].starting
assert query.nodes[1].starting
assert query.nodes[1].btype == qmod.BREAK_TOKEN
@pytest.mark.asyncio
@pytest.mark.parametrize('term,order', [('23456', ['P', 'H', 'W']),
('3', ['H', 'W'])])
async def test_penalty_postcodes_and_housenumbers(conn, term, order):
ana = await tok.create_query_analyzer(conn)
await add_word(conn, 2, term, 'H', term)
await add_word(conn, 3, term, 'w', term)
await add_word(conn, 4, term, 'W', term)
query = await ana.analyze_query(make_phrase(term))
assert query.num_token_slots() == 1
torder = [(tl.tokens[0].penalty, tl.ttype) for tl in query.nodes[0].starting]
torder.sort()
assert [t[1] for t in torder] == order
@pytest.mark.asyncio
async def test_category_words_only_at_beginning(conn):
ana = await tok.create_query_analyzer(conn)
await add_word(conn, 1, 'foo', 'S', 'FOO', {'op': 'in'})
await add_word(conn, 2, 'bar', 'w', 'BAR')
query = await ana.analyze_query(make_phrase('foo BAR foo'))
assert query.num_token_slots() == 3
assert len(query.nodes[0].starting) == 1
assert query.nodes[0].starting[0].ttype == qmod.TOKEN_NEAR_ITEM
assert not query.nodes[2].starting
@pytest.mark.asyncio
async def test_freestanding_qualifier_words_become_category(conn):
ana = await tok.create_query_analyzer(conn)
await add_word(conn, 1, 'foo', 'S', 'FOO', {'op': '-'})
query = await ana.analyze_query(make_phrase('foo'))
assert query.num_token_slots() == 1
assert len(query.nodes[0].starting) == 1
assert query.nodes[0].starting[0].ttype == qmod.TOKEN_NEAR_ITEM
@pytest.mark.asyncio
async def test_qualifier_words(conn):
ana = await tok.create_query_analyzer(conn)
await add_word(conn, 1, 'foo', 'S', None, {'op': '-'})
await add_word(conn, 2, 'bar', 'w', None)
query = await ana.analyze_query(make_phrase('foo BAR foo BAR foo'))
assert query.num_token_slots() == 5
assert set(t.ttype for t in query.nodes[0].starting) == {qmod.TOKEN_QUALIFIER}
assert set(t.ttype for t in query.nodes[2].starting) == {qmod.TOKEN_QUALIFIER}
assert set(t.ttype for t in query.nodes[4].starting) == {qmod.TOKEN_QUALIFIER}
@pytest.mark.asyncio
async def test_add_unknown_housenumbers(conn):
ana = await tok.create_query_analyzer(conn)
await add_word(conn, 1, '23', 'H', '23')
query = await ana.analyze_query(make_phrase('466 23 99834 34a'))
assert query.num_token_slots() == 4
assert query.nodes[0].starting[0].ttype == qmod.TOKEN_HOUSENUMBER
assert len(query.nodes[0].starting[0].tokens) == 1
assert query.nodes[0].starting[0].tokens[0].token == 0
assert query.nodes[1].starting[0].ttype == qmod.TOKEN_HOUSENUMBER
assert len(query.nodes[1].starting[0].tokens) == 1
assert query.nodes[1].starting[0].tokens[0].token == 1
assert query.nodes[2].has_tokens(3, qmod.TOKEN_POSTCODE)
assert not query.nodes[2].has_tokens(3, qmod.TOKEN_HOUSENUMBER)
assert not query.nodes[2].has_tokens(4, qmod.TOKEN_HOUSENUMBER)
assert not query.nodes[3].has_tokens(4, qmod.TOKEN_HOUSENUMBER)
@pytest.mark.asyncio
@pytest.mark.parametrize('logtype', ['text', 'html'])
async def test_log_output(conn, logtype):
ana = await tok.create_query_analyzer(conn)
await add_word(conn, 1, 'foo', 'w', 'FOO')
set_log_output(logtype)
await ana.analyze_query(make_phrase('foo'))
assert get_and_disable()