added vector store test cases (#1868)

Co-authored-by: Dev Khant <devkhant24@gmail.com>

tests/vector_stores/test_chroma.py

@@ -0,0 +1,111 @@
+from unittest.mock import Mock, patch
+import pytest
+from mem0.vector_stores.chroma import ChromaDB, OutputData
+
+
+@pytest.fixture
+def mock_chromadb_client():
+    with patch("chromadb.Client") as mock_client:
+        yield mock_client
+
+
+@pytest.fixture
+def chromadb_instance(mock_chromadb_client):
+    mock_collection = Mock()
+    mock_chromadb_client.return_value.get_or_create_collection.return_value = (
+        mock_collection
+    )
+
+    return ChromaDB(
+        collection_name="test_collection", client=mock_chromadb_client.return_value
+    )
+
+
+def test_insert_vectors(chromadb_instance, mock_chromadb_client):
+    vectors = [[0.1, 0.2, 0.3], [0.4, 0.5, 0.6]]
+    payloads = [{"name": "vector1"}, {"name": "vector2"}]
+    ids = ["id1", "id2"]
+
+    chromadb_instance.insert(vectors=vectors, payloads=payloads, ids=ids)
+
+    chromadb_instance.collection.add.assert_called_once_with(
+        ids=ids, embeddings=vectors, metadatas=payloads
+    )
+
+
+def test_search_vectors(chromadb_instance, mock_chromadb_client):
+    mock_result = {
+        "ids": [["id1", "id2"]],
+        "distances": [[0.1, 0.2]],
+        "metadatas": [[{"name": "vector1"}, {"name": "vector2"}]],
+    }
+    chromadb_instance.collection.query.return_value = mock_result
+
+    query = [[0.1, 0.2, 0.3]]
+    results = chromadb_instance.search(query=query, limit=2)
+
+    chromadb_instance.collection.query.assert_called_once_with(
+        query_embeddings=query, where=None, n_results=2
+    )
+
+    print(results, type(results))
+    assert len(results) == 2
+    assert results[0].id == "id1"
+    assert results[0].score == 0.1
+    assert results[0].payload == {"name": "vector1"}
+
+
+def test_delete_vector(chromadb_instance):
+    vector_id = "id1"
+
+    chromadb_instance.delete(vector_id=vector_id)
+
+    chromadb_instance.collection.delete.assert_called_once_with(ids=vector_id)
+
+
+def test_update_vector(chromadb_instance):
+    vector_id = "id1"
+    new_vector = [0.7, 0.8, 0.9]
+    new_payload = {"name": "updated_vector"}
+
+    chromadb_instance.update(
+        vector_id=vector_id, vector=new_vector, payload=new_payload
+    )
+
+    chromadb_instance.collection.update.assert_called_once_with(
+        ids=vector_id, embeddings=new_vector, metadatas=new_payload
+    )
+
+
+def test_get_vector(chromadb_instance):
+    mock_result = {
+        "ids": [["id1"]],
+        "distances": [[0.1]],
+        "metadatas": [[{"name": "vector1"}]],
+    }
+    chromadb_instance.collection.get.return_value = mock_result
+
+    result = chromadb_instance.get(vector_id="id1")
+
+    chromadb_instance.collection.get.assert_called_once_with(ids=["id1"])
+
+    assert result.id == "id1"
+    assert result.score == 0.1
+    assert result.payload == {"name": "vector1"}
+
+
+def test_list_vectors(chromadb_instance):
+    mock_result = {
+        "ids": [["id1", "id2"]],
+        "distances": [[0.1, 0.2]],
+        "metadatas": [[{"name": "vector1"}, {"name": "vector2"}]],
+    }
+    chromadb_instance.collection.get.return_value = mock_result
+
+    results = chromadb_instance.list(limit=2)
+
+    chromadb_instance.collection.get.assert_called_once_with(where=None, limit=2)
+
+    assert len(results[0]) == 2
+    assert results[0][0].id == "id1"
+    assert results[0][1].id == "id2"