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mem0/tests/embeddings/test_ollama_embeddings.py

63 lines
2.1 KiB
Python

from unittest.mock import Mock, patch
import pytest
from mem0.configs.embeddings.base import BaseEmbedderConfig
from mem0.embeddings.ollama import OllamaEmbedding
@pytest.fixture
def mock_ollama_client():
with patch("mem0.embeddings.ollama.Client") as mock_ollama:
mock_client = Mock()
mock_client.list.return_value = {"models": [{"name": "nomic-embed-text"}]}
mock_ollama.return_value = mock_client
yield mock_client
def test_embed_text(mock_ollama_client):
config = BaseEmbedderConfig(model="nomic-embed-text", embedding_dims=512)
embedder = OllamaEmbedding(config)
mock_response = {"embeddings": [[0.1, 0.2, 0.3, 0.4, 0.5]]}
mock_ollama_client.embed.return_value = mock_response
text = "Sample text to embed."
embedding = embedder.embed(text)
mock_ollama_client.embed.assert_called_once_with(model="nomic-embed-text", input=text)
assert embedding == [0.1, 0.2, 0.3, 0.4, 0.5]
def test_ensure_model_exists(mock_ollama_client):
config = BaseEmbedderConfig(model="nomic-embed-text", embedding_dims=512)
embedder = OllamaEmbedding(config)
mock_ollama_client.pull.assert_not_called()
mock_ollama_client.list.return_value = {"models": []}
embedder._ensure_model_exists()
mock_ollama_client.pull.assert_called_once_with("nomic-embed-text")
def test_ensure_model_exists_normalizes_latest_tag(mock_ollama_client):
"""Model 'nomic-embed-text' should match 'nomic-embed-text:latest' from ollama list."""
mock_ollama_client.list.return_value = {"models": [{"name": "nomic-embed-text:latest"}]}
config = BaseEmbedderConfig(model="nomic-embed-text", embedding_dims=512)
OllamaEmbedding(config)
mock_ollama_client.pull.assert_not_called()
def test_embed_empty_response_raises(mock_ollama_client):
config = BaseEmbedderConfig(model="nomic-embed-text", embedding_dims=512)
embedder = OllamaEmbedding(config)
mock_ollama_client.embed.return_value = {"embeddings": []}
with pytest.raises(ValueError, match="returned no embeddings"):
embedder.embed("some text")