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t6_mem0/tests/vector_stores/test_mongodb.py
2025-07-03 18:52:50 -07:00

187 lines
6.6 KiB
Python

import pytest
from unittest.mock import MagicMock, patch
from mem0.vector_stores.mongodb import MongoDB
@pytest.fixture
@patch("mem0.vector_stores.mongodb.MongoClient")
def mongo_vector_fixture(mock_mongo_client):
mock_client = mock_mongo_client.return_value
mock_db = mock_client["test_db"]
mock_collection = mock_db["test_collection"]
mock_collection.list_search_indexes.return_value = []
mock_collection.aggregate.return_value = []
mock_collection.find_one.return_value = None
mock_collection.find.return_value = []
mock_db.list_collection_names.return_value = []
mongo_vector = MongoDB(
db_name="test_db",
collection_name="test_collection",
embedding_model_dims=1536,
mongo_uri="mongodb://username:password@localhost:27017",
)
return mongo_vector, mock_collection, mock_db
def test_initalize_create_col(mongo_vector_fixture):
mongo_vector, mock_collection, mock_db = mongo_vector_fixture
assert mongo_vector.collection_name == "test_collection"
assert mongo_vector.embedding_model_dims == 1536
assert mongo_vector.db_name == "test_db"
# Verify create_col being called
mock_db.list_collection_names.assert_called_once()
mock_collection.insert_one.assert_called_once_with({"_id": 0, "placeholder": True})
mock_collection.delete_one.assert_called_once_with({"_id": 0})
assert mongo_vector.index_name == "test_collection_vector_index"
mock_collection.list_search_indexes.assert_called_once_with(name="test_collection_vector_index")
mock_collection.create_search_index.assert_called_once()
args, _ = mock_collection.create_search_index.call_args
search_index_model = args[0].document
assert search_index_model == {
"name": "test_collection_vector_index",
"definition": {
"mappings": {
"dynamic": False,
"fields": {
"embedding": {
"type": "knnVector",
"dimensions": 1536,
"similarity": "cosine",
}
},
}
},
}
assert mongo_vector.collection == mock_collection
def test_insert(mongo_vector_fixture):
mongo_vector, mock_collection, _ = mongo_vector_fixture
vectors = [[0.1] * 1536, [0.2] * 1536]
payloads = [{"name": "vector1"}, {"name": "vector2"}]
ids = ["id1", "id2"]
mongo_vector.insert(vectors, payloads, ids)
expected_records = [
({"_id": ids[0], "embedding": vectors[0], "payload": payloads[0]}),
({"_id": ids[1], "embedding": vectors[1], "payload": payloads[1]}),
]
mock_collection.insert_many.assert_called_once_with(expected_records)
def test_search(mongo_vector_fixture):
mongo_vector, mock_collection, _ = mongo_vector_fixture
query_vector = [0.1] * 1536
mock_collection.aggregate.return_value = [
{"_id": "id1", "score": 0.9, "payload": {"key": "value1"}},
{"_id": "id2", "score": 0.8, "payload": {"key": "value2"}},
]
mock_collection.list_search_indexes.return_value = ["test_collection_vector_index"]
results = mongo_vector.search("query_str", query_vector, limit=2)
mock_collection.list_search_indexes.assert_called_with(name="test_collection_vector_index")
mock_collection.aggregate.assert_called_once_with(
[
{
"$vectorSearch": {
"index": "test_collection_vector_index",
"limit": 2,
"numCandidates": 2,
"queryVector": query_vector,
"path": "embedding",
},
},
{"$set": {"score": {"$meta": "vectorSearchScore"}}},
{"$project": {"embedding": 0}},
]
)
assert len(results) == 2
assert results[0].id == "id1"
assert results[0].score == 0.9
assert results[1].id == "id2"
assert results[1].score == 0.8
def test_delete(mongo_vector_fixture):
mongo_vector, mock_collection, _ = mongo_vector_fixture
mock_delete_result = MagicMock()
mock_delete_result.deleted_count = 1
mock_collection.delete_one.return_value = mock_delete_result
mongo_vector.delete("id1")
mock_collection.delete_one.assert_called_with({"_id": "id1"})
def test_update(mongo_vector_fixture):
mongo_vector, mock_collection, _ = mongo_vector_fixture
mock_update_result = MagicMock()
mock_update_result.matched_count = 1
mock_collection.update_one.return_value = mock_update_result
idValue = "id1"
vectorValue = [0.2] * 1536
payloadValue = {"key": "updated"}
mongo_vector.update(idValue, vector=vectorValue, payload=payloadValue)
mock_collection.update_one.assert_called_once_with(
{"_id": idValue},
{"$set": {"embedding": vectorValue, "payload": payloadValue}},
)
def test_get(mongo_vector_fixture):
mongo_vector, mock_collection, _ = mongo_vector_fixture
mock_collection.find_one.return_value = {"_id": "id1", "payload": {"key": "value1"}}
result = mongo_vector.get("id1")
assert result is not None
assert result.id == "id1"
assert result.payload == {"key": "value1"}
def test_list_cols(mongo_vector_fixture):
mongo_vector, _, mock_db = mongo_vector_fixture
mock_db.list_collection_names.return_value = ["col1", "col2"]
collections = mongo_vector.list_cols()
assert collections == ["col1", "col2"]
def test_delete_col(mongo_vector_fixture):
mongo_vector, mock_collection, _ = mongo_vector_fixture
mongo_vector.delete_col()
mock_collection.drop.assert_called_once()
def test_col_info(mongo_vector_fixture):
mongo_vector, _, mock_db = mongo_vector_fixture
mock_db.command.return_value = {"count": 10, "size": 1024}
info = mongo_vector.col_info()
mock_db.command.assert_called_once_with("collstats", "test_collection")
assert info["name"] == "test_collection"
assert info["count"] == 10
assert info["size"] == 1024
def test_list(mongo_vector_fixture):
mongo_vector, mock_collection, _ = mongo_vector_fixture
mock_cursor = MagicMock()
mock_cursor.limit.return_value = [
{"_id": "id1", "payload": {"key": "value1"}},
{"_id": "id2", "payload": {"key": "value2"}},
]
mock_collection.find.return_value = mock_cursor
query_filters = {"_id": {"$in": ["id1", "id2"]}}
results = mongo_vector.list(filters=query_filters, limit=2)
mock_collection.find.assert_called_once_with(query_filters)
mock_cursor.limit.assert_called_once_with(2)
assert len(results) == 2
assert results[0].id == "id1"
assert results[0].payload == {"key": "value1"}
assert results[1].id == "id2"
assert results[1].payload == {"key": "value2"}