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# The MIT License (MIT)
# Copyright (c) Microsoft Corporation. All rights reserved.
import json
import os
import time
import unittest
import uuid
import pytest
import azure.cosmos.cosmos_client as cosmos_client
import azure.cosmos.exceptions as exceptions
import test_config
import hybrid_search_data
from azure.cosmos import http_constants, DatabaseProxy
from azure.cosmos.partition_key import PartitionKey
@pytest.mark.cosmosSearchQuery
class TestFullTextHybridSearchQuery(unittest.TestCase):
"""Test to check full text search and hybrid search queries behavior."""
client: cosmos_client.CosmosClient = None
config = test_config.TestConfig
host = config.host
masterKey = config.masterKey
connectionPolicy = config.connectionPolicy
TEST_DATABASE_ID = config.TEST_DATABASE_ID
TEST_CONTAINER_ID = "Full Text Container " + str(uuid.uuid4())
@classmethod
def setUpClass(cls):
if (cls.masterKey == '[YOUR_KEY_HERE]' or
cls.host == '[YOUR_ENDPOINT_HERE]'):
raise Exception(
"You must specify your Azure Cosmos account values for "
"'masterKey' and 'host' at the top of this class to run the "
"tests.")
cls.client = cosmos_client.CosmosClient(cls.host, cls.masterKey)
cls.test_db = cls.client.create_database(str(uuid.uuid4()))
cls.test_container = cls.test_db.create_container(
id="FTS" + cls.TEST_CONTAINER_ID,
partition_key=PartitionKey(path="/pk"),
offer_throughput=test_config.TestConfig.THROUGHPUT_FOR_2_PARTITIONS,
indexing_policy=test_config.get_full_text_indexing_policy(path="/text"),
full_text_policy=test_config.get_full_text_policy(path="/text"))
data = hybrid_search_data.get_full_text_items()
for index, item in enumerate(data.get("items")):
item['id'] = str(index)
item['pk'] = str((index % 2) + 1)
cls.test_container.create_item(item)
# Need to give the container time to index all the recently added items - 10 minutes seems to work
time.sleep(10 * 60)
@classmethod
def tearDownClass(cls):
try:
cls.test_db.delete_container(cls.test_container.id)
cls.client.delete_database(cls.test_db.id)
except exceptions.CosmosHttpResponseError:
pass
def test_wrong_hybrid_search_queries(self):
try:
query = "SELECT c.index, RRF(VectorDistance(c.vector, [1,2,3]), FullTextScore(c.text, 'test') FROM c"
results = self.test_container.query_items(query, enable_cross_partition_query=True)
list(results)
pytest.fail("Attempting to project RRF in a query should fail.")
except exceptions.CosmosHttpResponseError as e:
assert e.status_code == http_constants.StatusCodes.BAD_REQUEST
# TODO: This message seems to differ depending on machine as well
assert ("One of the input values is invalid" in e.message or
"Syntax error, incorrect syntax near 'FROM'" in e.message)
try:
query = "SELECT TOP 10 c.index FROM c WHERE FullTextContains(c.title, 'John')" \
" ORDER BY RANK FullTextScore(c.title, 'John') DESC"
results = self.test_container.query_items(query, enable_cross_partition_query=True)
list(results)
pytest.fail("Attempting to set an ordering direction in a full text score query should fail.")
except exceptions.CosmosHttpResponseError as e:
assert e.status_code == http_constants.StatusCodes.BAD_REQUEST
assert ("One of the input values is invalid" in e.message or
"Specifying a sort order (ASC or DESC) in the ORDER BY RANK clause is not allowed." in e.message)
try:
query = "SELECT TOP 10 c.index FROM c WHERE FullTextContains(c.title, 'John')" \
" ORDER BY RANK RRF(FullTextScore(c.title, 'John'), VectorDistance(c.vector, [1,2,3])) DESC"
results = self.test_container.query_items(query, enable_cross_partition_query=True)
list(results)
pytest.fail("Attempting to set an ordering direction in a hybrid search query should fail.")
except exceptions.CosmosHttpResponseError as e:
assert e.status_code == http_constants.StatusCodes.BAD_REQUEST
# TODO: Find why this behavior is inconsistent across runs - message should be the same
assert ("One of the input values is invalid" in e.message or
"Specifying a sort order (ASC or DESC) in the ORDER BY RANK clause is not allowed." in e.message)
def test_hybrid_search_env_variables(self):
os.environ["AZURE_COSMOS_HYBRID_SEARCH_MAX_ITEMS"] = "0"
try:
query = "SELECT TOP 1 c.index, c.title FROM c WHERE FullTextContains(c.title, 'John') OR " \
"FullTextContains(c.text, 'John') ORDER BY RANK FullTextScore(c.title, 'John')"
results = self.test_container.query_items(query, enable_cross_partition_query=True)
[item for item in results]
pytest.fail("Config was not applied properly.")
except ValueError as e:
assert e.args[0] == ("Executing a hybrid search query with more items than the max is not allowed. "
"Please ensure you are using a limit smaller than the max, or change the max.")
finally:
os.environ["AZURE_COSMOS_HYBRID_SEARCH_MAX_ITEMS"] = "1000"
def test_hybrid_search_queries(self):
query = "SELECT TOP 10 c.index, c.title FROM c WHERE FullTextContains(c.title, 'John') OR " \
"FullTextContains(c.text, 'John') ORDER BY RANK FullTextScore(c.title, 'John')"
results = self.test_container.query_items(query, enable_cross_partition_query=True)
result_list = list(results)
assert len(result_list) == 3
for res in result_list:
assert res['index'] in [2, 85, 57]
query = "SELECT TOP 10 c.index, c.title FROM c WHERE FullTextContains(c.title, 'John')" \
" OR FullTextContains(c.text, 'John') ORDER BY RANK FullTextScore(c.title, 'John')"
results = self.test_container.query_items(query, enable_cross_partition_query=True)
result_list = list(results)
assert len(result_list) == 3
for res in result_list:
assert res['index'] in [2, 85, 57]
query = "SELECT c.index, c.title FROM c WHERE FullTextContains(c.title, 'John')" \
" OR FullTextContains(c.text, 'John') ORDER BY RANK FullTextScore(c.title, 'John') OFFSET 1 LIMIT 5"
results = self.test_container.query_items(query, enable_cross_partition_query=True)
result_list = list(results)
assert len(result_list) == 2
for res in result_list:
assert res['index'] in [85, 57]
query = "SELECT TOP 20 c.index, c.title FROM c WHERE FullTextContains(c.title, 'John') OR " \
"FullTextContains(c.text, 'John') OR FullTextContains(c.text, 'United States') " \
"ORDER BY RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States'))"
results = self.test_container.query_items(query, enable_cross_partition_query=True)
result_list = list(results)
assert len(result_list) == 15
for res in result_list:
assert res['index'] in [61, 51, 49, 54, 75, 24, 77, 76, 80, 25, 22, 2, 66, 57, 85]
query = "SELECT TOP 10 c.index, c.title FROM c WHERE " \
"FullTextContains(c.title, 'John') OR FullTextContains(c.text, 'John') OR " \
"FullTextContains(c.text, 'United States') ORDER BY RANK RRF(FullTextScore(c.title, 'John')," \
" FullTextScore(c.text, 'United States'))"
results = self.test_container.query_items(query, enable_cross_partition_query=True)
result_list = list(results)
assert len(result_list) == 10
for res in result_list:
assert res['index'] in [61, 51, 49, 54, 75, 24, 77, 76, 80, 25]
query = "SELECT c.index, c.title FROM c WHERE FullTextContains(c.title, 'John')" \
" OR FullTextContains(c.text, 'John') OR FullTextContains(c.text, 'United States') ORDER BY " \
"RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States')) OFFSET 5 LIMIT 10"
results = self.test_container.query_items(query, enable_cross_partition_query=True)
result_list = list(results)
assert len(result_list) == 10
for res in result_list:
assert res['index'] in [24, 77, 76, 80, 25, 22, 2, 66, 57, 85]
query = "SELECT TOP 10 c.index, c.title FROM c " \
"ORDER BY RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States'))"
results = self.test_container.query_items(query, enable_cross_partition_query=True)
result_list = list(results)
assert len(result_list) == 10
for res in result_list:
assert res['index'] in [61, 51, 49, 54, 75, 24, 77, 76, 80, 25]
query = "SELECT c.index, c.title FROM c " \
"ORDER BY RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States')) " \
"OFFSET 0 LIMIT 13"
results = self.test_container.query_items(query, enable_cross_partition_query=True)
result_list = list(results)
assert len(result_list) == 13
for res in result_list:
assert res['index'] in [61, 51, 49, 54, 75, 24, 77, 76, 80, 25, 22, 2, 66]
item_vector = self.test_container.read_item('50', '1')['vector']
query = "SELECT c.index, c.title FROM c " \
"ORDER BY RANK RRF(FullTextScore(c.text, 'United States'), VectorDistance(c.vector, {})) " \
"OFFSET 0 LIMIT 10".format(item_vector)
results = self.test_container.query_items(query, enable_cross_partition_query=True)
result_list = list(results)
assert len(result_list) == 10
for res in result_list:
assert res['index'] in [51, 54, 28, 70, 24, 61, 56, 26, 58, 77]
def test_hybrid_search_query_pagination(self):
query = "SELECT c.index, c.title FROM c " \
"ORDER BY RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States')) " \
"OFFSET 0 LIMIT 13"
query_iterable = self.test_container.query_items(query, enable_cross_partition_query=True, max_item_count=5)
all_fetched_res = []
count = 0
item_pages = query_iterable.by_page()
for items in item_pages:
count += 1
all_fetched_res.extend(list(items))
assert count == 3
assert len(all_fetched_res) == 13
def test_hybrid_search_cross_partition_query_response_hook(self):
item_vector = self.test_container.read_item('50', '1')['vector']
response_hook = test_config.ResponseHookCaller()
query = "SELECT c.index, c.title FROM c " \
"ORDER BY RANK RRF(FullTextScore(c.text, 'United States'), VectorDistance(c.vector, {})) " \
"OFFSET 0 LIMIT 10".format(item_vector)
results = self.test_container.query_items(query, enable_cross_partition_query=True, response_hook=response_hook)
result_list = list(results)
assert len(result_list) == 10
assert response_hook.count == 6 # one global stat query per partition, two queries per partition for each component query
def test_hybrid_search_partitioned_query_response_hook(self):
item_vector = self.test_container.read_item('50', '1')['vector']
response_hook = test_config.ResponseHookCaller()
query = "SELECT c.index, c.title FROM c " \
"ORDER BY RANK RRF(FullTextScore(c.text, 'United States'), VectorDistance(c.vector, {})) " \
"OFFSET 0 LIMIT 10".format(item_vector)
results = self.test_container.query_items(query, partition_key='1', response_hook=response_hook)
result_list = list(results)
assert len(result_list) == 10
assert response_hook.count == 1
def test_hybrid_search_weighted_reciprocal_rank_fusion(self):
# Test case 1
query = """
SELECT TOP 15 c.index AS Index, c.title AS Title, c.text AS Text
FROM c
WHERE FullTextContains(c.title, 'John') OR FullTextContains(c.text, 'John') OR FullTextContains(c.text, 'United States')
ORDER BY RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States'), [1, 1])
"""
results = self.test_container.query_items(query, enable_cross_partition_query=True)
result_list = [res['Index'] for res in results]
# If some scores rank the same the order of the results may change
assert result_list in [
[61, 51, 49, 54, 75, 24, 77, 76, 80, 25, 22, 2, 66, 57, 85],
[61, 51, 49, 54, 75, 24, 77, 76, 80, 25, 22, 2, 66, 85, 57]
]
# Test case 2
query = """
SELECT TOP 15 c.index AS Index, c.title AS Title, c.text AS Text
FROM c
WHERE FullTextContains(c.title, 'John') OR FullTextContains(c.text, 'John') OR FullTextContains(c.text, 'United States')
ORDER BY RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States'), [10, 10])
"""
results = self.test_container.query_items(query, enable_cross_partition_query=True)
result_list = [res['Index'] for res in results]
# If some scores rank the same the order of the results may change
assert result_list in [
[61, 51, 49, 54, 75, 24, 77, 76, 80, 25, 22, 2, 66, 57, 85],
[61, 51, 49, 54, 75, 24, 77, 76, 80, 25, 22, 2, 66, 85, 57]
]
# Test case 3
query = """
SELECT TOP 10 c.index AS Index, c.title AS Title, c.text AS Text
FROM c
WHERE FullTextContains(c.title, 'John') OR FullTextContains(c.text, 'John') OR FullTextContains(c.text, 'United States')
ORDER BY RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States'), [0.1, 0.1])
"""
results = self.test_container.query_items(query, enable_cross_partition_query=True)
result_list = [res['Index'] for res in results]
assert result_list == [61, 51, 49, 54, 75, 24, 77, 76, 80, 25]
# Test case 4
query = """
SELECT TOP 15 c.index AS Index, c.title AS Title, c.text AS Text
FROM c
WHERE FullTextContains(c.title, 'John') OR FullTextContains(c.text, 'John') OR FullTextContains(c.text, 'United States')
ORDER BY RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States'), [-1, -1])
"""
results = self.test_container.query_items(query, enable_cross_partition_query=True)
result_list = [res['Index'] for res in results]
# If some scores rank the same the order of the results may change
assert result_list in [
[85, 57, 66, 2, 22, 25, 77, 76, 80, 75, 24, 49, 54, 51, 81],
[57, 85, 2, 66, 22, 25, 80, 76, 77, 24, 75, 54, 49, 51, 61]
]
# Test case 5
item_vector = self.test_container.read_item('50', '1')['vector']
query = "SELECT c.index, c.title FROM c " \
"ORDER BY RANK RRF(FullTextScore(c.text, 'United States'), VectorDistance(c.vector, {}), [1,1]) " \
"OFFSET 0 LIMIT 10".format(item_vector)
results = self.test_container.query_items(query, enable_cross_partition_query=True)
result_list = list(results)
assert len(result_list) == 10
result_list = [res['index'] for res in result_list]
assert result_list == [51, 54, 28, 70, 24, 61, 56, 26, 58, 77]
def test_invalid_hybrid_search_queries_weighted_reciprocal_rank_fusion(self):
try:
query = "SELECT c.index, RRF(VectorDistance(c.vector, [1,2,3]), FullTextScore(c.text, 'test') FROM c"
results = self.test_container.query_items(query, enable_cross_partition_query=True)
list(results)
pytest.fail("Attempting to project RRF in a query should fail.")
except exceptions.CosmosHttpResponseError as e:
assert e.status_code == http_constants.StatusCodes.BAD_REQUEST
def test_weighted_vs_non_weighted_reciprocal_rank_fusion(self):
# Non-weighted RRF query
query_non_weighted = """
SELECT TOP 10 c.index, c.title FROM c
ORDER BY RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States'))
"""
results_non_weighted = self.test_container.query_items(query_non_weighted, enable_cross_partition_query=True)
result_list_non_weighted = [res['index'] for res in results_non_weighted]
# Weighted RRF query with equal weights
query_weighted_equal = """
SELECT TOP 10 c.index, c.title FROM c
ORDER BY RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States'), [1, 1])
"""
results_weighted_equal = self.test_container.query_items(query_weighted_equal,
enable_cross_partition_query=True)
result_list_weighted_equal = [res['index'] for res in results_weighted_equal]
# Weighted RRF query with different direction weights
query_weighted_different = """
SELECT TOP 10 c.index, c.title FROM c
ORDER BY RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States'), [1, -0.5])
"""
results_weighted_different = self.test_container.query_items(query_weighted_different,
enable_cross_partition_query=True)
result_list_weighted_different = [res['index'] for res in results_weighted_different]
# Assertions
assert result_list_non_weighted == result_list_weighted_equal, "Non-weighted and equally weighted RRF results should match."
assert result_list_non_weighted != result_list_weighted_different, "Non-weighted and differently weighted RRF results should not match."
def test_weighted_reciprocal_rank_fusion_with_missing_or_extra_weights(self):
try:
# Weighted RRF query with one weight missing
query_missing_weight = """
SELECT TOP 10 c.index, c.title FROM c
ORDER BY RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States'), [1])
"""
res = self.test_container.query_items(query_missing_weight, enable_cross_partition_query=True)
list(res)
pytest.fail("Query with missing weights should fail.")
except exceptions.CosmosHttpResponseError as e:
assert e.status_code == http_constants.StatusCodes.BAD_REQUEST
try:
# Weighted RRF query with an extra weight
query_extra_weight = """
SELECT TOP 10 c.index, c.title FROM c
ORDER BY RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States'), [1, 1, 1])
"""
list(self.test_container.query_items(query_extra_weight, enable_cross_partition_query=True))
pytest.fail("Query with extra weights should fail.")
except exceptions.CosmosHttpResponseError as e:
assert e.status_code == http_constants.StatusCodes.BAD_REQUEST
def test_weighted_reciprocal_rank_fusion_with_response_hook(self):
response_hook = test_config.ResponseHookCaller()
query_weighted_rrf = """
SELECT TOP 10 c.index, c.title FROM c
ORDER BY RANK RRF(FullTextScore(c.title, 'John'), FullTextScore(c.text, 'United States'), [1, 0.5])
"""
results = self.test_container.query_items(query_weighted_rrf, enable_cross_partition_query=True,
response_hook=response_hook)
result_list = list(results)
assert len(result_list) == 10
assert response_hook.count > 0 # Ensure the response hook was called
if __name__ == "__main__":
unittest.main()
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