Files
mem0/tests/vector_stores/test_default_path.py
T

470 lines
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Python

"""Tests for the vector store default path fix (issue #4279).
Verifies that vector store defaults use platform-appropriate persistent directories
instead of /tmp, which is ephemeral and may be inaccessible in restricted environments.
"""
import logging
from pathlib import Path
from unittest.mock import MagicMock, patch
import pytest
from mem0.vector_stores.configs import VectorStoreConfig, get_default_vector_store_path
# ---------------------------------------------------------------------------
# get_default_vector_store_path unit tests
# ---------------------------------------------------------------------------
class TestGetDefaultVectorStorePath:
"""Tests for the get_default_vector_store_path helper function."""
def _clean_env(self, monkeypatch):
"""Remove all relevant env vars to get a clean baseline."""
for var in ("MEM0_DATA_DIR", "XDG_DATA_HOME", "APPDATA"):
monkeypatch.delenv(var, raising=False)
def test_default_falls_back_to_local_share(self, monkeypatch):
"""With no env vars set, path should be ~/.local/share/mem0/{provider}."""
self._clean_env(monkeypatch)
result = get_default_vector_store_path("qdrant")
expected = str(Path.home() / ".local" / "share" / "mem0" / "qdrant")
assert result == expected
def test_xdg_data_home_respected(self, monkeypatch):
"""XDG_DATA_HOME should be used as the base when set."""
self._clean_env(monkeypatch)
monkeypatch.setenv("XDG_DATA_HOME", "/custom/xdg/data")
result = get_default_vector_store_path("chroma")
assert result == "/custom/xdg/data/mem0/chroma"
def test_appdata_respected_on_windows(self, monkeypatch):
"""APPDATA should be used when XDG_DATA_HOME is not set (Windows)."""
self._clean_env(monkeypatch)
monkeypatch.setenv("APPDATA", "C:\\Users\\test\\AppData\\Roaming")
result = get_default_vector_store_path("faiss")
expected = str(Path("C:\\Users\\test\\AppData\\Roaming") / "mem0" / "faiss")
assert result == expected
def test_xdg_takes_precedence_over_appdata(self, monkeypatch):
"""XDG_DATA_HOME should take precedence over APPDATA."""
self._clean_env(monkeypatch)
monkeypatch.setenv("XDG_DATA_HOME", "/xdg/path")
monkeypatch.setenv("APPDATA", "C:\\windows\\path")
result = get_default_vector_store_path("qdrant")
assert result == "/xdg/path/mem0/qdrant"
def test_mem0_data_dir_takes_highest_precedence(self, monkeypatch):
"""MEM0_DATA_DIR should override all other env vars."""
self._clean_env(monkeypatch)
monkeypatch.setenv("MEM0_DATA_DIR", "/custom/mem0/data")
monkeypatch.setenv("XDG_DATA_HOME", "/should/be/ignored")
monkeypatch.setenv("APPDATA", "C:\\also\\ignored")
result = get_default_vector_store_path("qdrant")
assert result == "/custom/mem0/data/qdrant"
def test_mem0_data_dir_no_extra_mem0_subdir(self, monkeypatch):
"""MEM0_DATA_DIR is already mem0-specific, so no extra 'mem0' subdir."""
self._clean_env(monkeypatch)
monkeypatch.setenv("MEM0_DATA_DIR", "/data/mem0")
result = get_default_vector_store_path("qdrant")
# Should be /data/mem0/qdrant, NOT /data/mem0/mem0/qdrant
assert result == "/data/mem0/qdrant"
def test_different_providers_get_different_paths(self, monkeypatch):
"""Each provider should get its own subdirectory."""
self._clean_env(monkeypatch)
qdrant_path = get_default_vector_store_path("qdrant")
chroma_path = get_default_vector_store_path("chroma")
faiss_path = get_default_vector_store_path("faiss")
assert qdrant_path != chroma_path != faiss_path
assert qdrant_path.endswith("/qdrant")
assert chroma_path.endswith("/chroma")
assert faiss_path.endswith("/faiss")
def test_path_never_contains_tmp(self, monkeypatch):
"""Default path should never be under /tmp (the whole point of #4279)."""
self._clean_env(monkeypatch)
for provider in ("qdrant", "chroma", "faiss"):
result = get_default_vector_store_path(provider)
assert not result.startswith("/tmp"), f"Provider {provider} still defaults to /tmp: {result}"
# ---------------------------------------------------------------------------
# VectorStoreConfig integration tests
# ---------------------------------------------------------------------------
class TestVectorStoreConfigPathInjection:
"""Tests that VectorStoreConfig correctly injects the new default path."""
def _clean_env(self, monkeypatch):
for var in ("MEM0_DATA_DIR", "XDG_DATA_HOME", "APPDATA"):
monkeypatch.delenv(var, raising=False)
def test_qdrant_gets_persistent_default_path(self, monkeypatch):
"""Qdrant should get a persistent default path, not /tmp."""
self._clean_env(monkeypatch)
vc = VectorStoreConfig(provider="qdrant", config={})
assert "/tmp" not in vc.config.path
assert "mem0" in vc.config.path
assert vc.config.path.endswith("/qdrant")
def test_explicit_path_not_overridden(self, monkeypatch):
"""An explicitly provided path should be used as-is."""
self._clean_env(monkeypatch)
custom_path = "/my/custom/qdrant/path"
vc = VectorStoreConfig(provider="qdrant", config={"path": custom_path})
assert vc.config.path == custom_path
def test_explicit_tmp_path_still_works(self, monkeypatch):
"""Users who explicitly want /tmp should still be able to use it."""
self._clean_env(monkeypatch)
vc = VectorStoreConfig(provider="qdrant", config={"path": "/tmp/qdrant"})
assert vc.config.path == "/tmp/qdrant"
def test_mem0_data_dir_flows_through_config(self, monkeypatch):
"""MEM0_DATA_DIR should be respected through VectorStoreConfig."""
self._clean_env(monkeypatch)
monkeypatch.setenv("MEM0_DATA_DIR", "/custom/data")
vc = VectorStoreConfig(provider="qdrant", config={})
assert vc.config.path == "/custom/data/qdrant"
def test_xdg_data_home_flows_through_config(self, monkeypatch):
"""XDG_DATA_HOME should be respected through VectorStoreConfig."""
self._clean_env(monkeypatch)
monkeypatch.setenv("XDG_DATA_HOME", "/xdg/data")
vc = VectorStoreConfig(provider="qdrant", config={})
assert vc.config.path == "/xdg/data/mem0/qdrant"
# ---------------------------------------------------------------------------
# Qdrant-specific config tests
# ---------------------------------------------------------------------------
class TestQdrantConfigDefault:
"""Tests that QdrantConfig's own default_factory uses the new path."""
def _clean_env(self, monkeypatch):
for var in ("MEM0_DATA_DIR", "XDG_DATA_HOME", "APPDATA"):
monkeypatch.delenv(var, raising=False)
def test_qdrant_field_default_is_persistent(self, monkeypatch):
"""QdrantConfig's path Field default should not be /tmp."""
self._clean_env(monkeypatch)
from mem0.configs.vector_stores.qdrant import QdrantConfig
# When path is explicitly provided, the before-validator sees it
config = QdrantConfig(path=get_default_vector_store_path("qdrant"))
assert "/tmp" not in config.path
assert config.path.endswith("/qdrant")
def test_qdrant_via_vector_store_config_no_path(self, monkeypatch):
"""Creating QdrantConfig via VectorStoreConfig with empty config should work."""
self._clean_env(monkeypatch)
vc = VectorStoreConfig(provider="qdrant", config={})
assert vc.config.path is not None
assert "/tmp" not in vc.config.path
# ---------------------------------------------------------------------------
# ChromaDB-specific config tests
# ---------------------------------------------------------------------------
class TestChromaDbConfigDefault:
"""Tests that ChromaDB's sentinel check works with the new default path."""
def _clean_env(self, monkeypatch):
for var in ("MEM0_DATA_DIR", "XDG_DATA_HOME", "APPDATA"):
monkeypatch.delenv(var, raising=False)
def test_chroma_default_path_via_vector_store_config(self, monkeypatch):
"""ChromaDB via VectorStoreConfig should get a non-/tmp default path."""
self._clean_env(monkeypatch)
vc = VectorStoreConfig(provider="chroma", config={})
assert "/tmp" not in vc.config.path
assert vc.config.path.endswith("/chroma")
def test_chroma_cloud_config_strips_default_path(self, monkeypatch):
"""ChromaDB cloud config should strip the injected default path."""
self._clean_env(monkeypatch)
default_path = get_default_vector_store_path("chroma")
from mem0.configs.vector_stores.chroma import ChromaDbConfig
# Simulate what VectorStoreConfig does: inject default path, then create config
config = ChromaDbConfig(
path=default_path,
api_key="test-key",
tenant="test-tenant",
)
# When cloud config is provided and path matches default, path should be stripped
assert config.path is None
def test_chroma_explicit_path_with_cloud_raises(self, monkeypatch):
"""ChromaDB with both explicit custom path and cloud config should raise."""
self._clean_env(monkeypatch)
from mem0.configs.vector_stores.chroma import ChromaDbConfig
with pytest.raises(ValueError, match="Cannot specify both"):
ChromaDbConfig(
path="/my/custom/path",
api_key="test-key",
tenant="test-tenant",
)
# ---------------------------------------------------------------------------
# FAISS-specific tests
# ---------------------------------------------------------------------------
class TestFaissDefaultPath:
"""Tests that FAISS uses the new default path."""
def _clean_env(self, monkeypatch):
for var in ("MEM0_DATA_DIR", "XDG_DATA_HOME", "APPDATA"):
monkeypatch.delenv(var, raising=False)
def test_faiss_default_path_via_vector_store_config(self, monkeypatch):
"""FAISS via VectorStoreConfig should get a non-/tmp default path."""
self._clean_env(monkeypatch)
vc = VectorStoreConfig(provider="faiss", config={})
assert "/tmp" not in vc.config.path
assert vc.config.path.endswith("/faiss")
def test_faiss_implementation_uses_new_default(self, monkeypatch):
"""FAISS implementation's own fallback should not use /tmp."""
self._clean_env(monkeypatch)
with patch("faiss.IndexFlatL2") as mock_index:
mock_index.return_value = MagicMock()
with patch("faiss.write_index"):
from mem0.vector_stores.faiss import FAISS
store = FAISS(collection_name="test")
assert "/tmp" not in store.path
assert "mem0" in store.path
# ---------------------------------------------------------------------------
# Legacy path migration warning tests
# ---------------------------------------------------------------------------
class TestLegacyPathMigration:
"""Tests that legacy /tmp data is automatically migrated to the new path."""
def _clean_env(self, monkeypatch):
for var in ("MEM0_DATA_DIR", "XDG_DATA_HOME", "APPDATA"):
monkeypatch.delenv(var, raising=False)
def test_auto_migration_copies_legacy_data(self, monkeypatch, tmp_path, caplog):
"""When legacy /tmp/{provider} has data and new path is empty, should copy."""
self._clean_env(monkeypatch)
legacy_dir = tmp_path / "legacy_qdrant"
legacy_dir.mkdir()
(legacy_dir / "data.bin").write_text("test data")
new_dir = tmp_path / "new_qdrant"
from mem0.vector_stores.configs import _migrate_legacy_data
with patch("mem0.vector_stores.configs.Path") as mock_path_cls:
real_legacy = Path(str(legacy_dir))
mock_new_path = MagicMock()
mock_new_path.exists.return_value = False
mock_sentinel = MagicMock()
mock_sentinel.exists.return_value = False
mock_new_path.__truediv__ = MagicMock(return_value=mock_sentinel)
mock_path_cls.side_effect = lambda p: real_legacy if "/tmp/" in str(p) else mock_new_path
with patch("shutil.copytree") as mock_copytree:
with caplog.at_level(logging.INFO, logger="mem0.vector_stores.configs"):
_migrate_legacy_data("qdrant", str(new_dir))
mock_copytree.assert_called_once()
assert mock_copytree.call_args[0][1] == str(new_dir)
assert mock_copytree.call_args[1]["dirs_exist_ok"] is True
mock_sentinel.touch.assert_called_once()
assert "migrated" in caplog.text.lower()
def test_no_migration_when_legacy_path_missing(self, monkeypatch, caplog):
"""Should not migrate when /tmp/{provider} doesn't exist."""
self._clean_env(monkeypatch)
from mem0.vector_stores.configs import _migrate_legacy_data
with patch("mem0.vector_stores.configs.Path") as mock_path_cls:
mock_legacy_path = MagicMock()
mock_legacy_path.exists.return_value = False
mock_path_cls.return_value = mock_legacy_path
with patch("shutil.copytree") as mock_copytree:
_migrate_legacy_data("qdrant", "/new/path")
mock_copytree.assert_not_called()
def test_no_migration_when_legacy_path_empty_dir(self, monkeypatch, tmp_path, caplog):
"""Should not migrate when /tmp/{provider} exists but is an empty directory."""
self._clean_env(monkeypatch)
legacy_dir = tmp_path / "empty_qdrant"
legacy_dir.mkdir()
from mem0.vector_stores.configs import _migrate_legacy_data
with patch("mem0.vector_stores.configs.Path") as mock_path_cls:
real_legacy = Path(str(legacy_dir))
mock_path_cls.side_effect = lambda p: real_legacy if "/tmp/" in str(p) else MagicMock()
with patch("shutil.copytree") as mock_copytree:
_migrate_legacy_data("qdrant", str(tmp_path / "new"))
mock_copytree.assert_not_called()
def test_no_migration_when_legacy_path_is_symlink(self, monkeypatch, tmp_path, caplog):
"""Should refuse to migrate if legacy path is a symlink (security)."""
self._clean_env(monkeypatch)
real_dir = tmp_path / "real_data"
real_dir.mkdir()
(real_dir / "data.bin").write_text("sensitive")
symlink_dir = tmp_path / "symlink_qdrant"
symlink_dir.symlink_to(real_dir)
from mem0.vector_stores.configs import _migrate_legacy_data
with patch("mem0.vector_stores.configs.Path") as mock_path_cls:
real_symlink = Path(str(symlink_dir))
mock_path_cls.side_effect = lambda p: real_symlink if "/tmp/" in str(p) else MagicMock()
with patch("shutil.copytree") as mock_copytree:
_migrate_legacy_data("qdrant", str(tmp_path / "new"))
mock_copytree.assert_not_called()
def test_no_migration_when_new_path_already_has_data(self, monkeypatch, tmp_path, caplog):
"""Should not clobber existing data at the new path."""
self._clean_env(monkeypatch)
legacy_dir = tmp_path / "legacy"
legacy_dir.mkdir()
(legacy_dir / "data.bin").write_text("legacy")
new_dir = tmp_path / "new"
new_dir.mkdir()
(new_dir / "existing.bin").write_text("keep this")
from mem0.vector_stores.configs import _migrate_legacy_data
with patch("mem0.vector_stores.configs.Path") as mock_path_cls:
real_legacy = Path(str(legacy_dir))
real_new = Path(str(new_dir))
mock_path_cls.side_effect = lambda p: real_legacy if "/tmp/" in str(p) else real_new
with patch("shutil.copytree") as mock_copytree:
with caplog.at_level(logging.INFO, logger="mem0.vector_stores.configs"):
_migrate_legacy_data("qdrant", str(new_dir))
mock_copytree.assert_not_called()
def test_no_migration_when_sentinel_exists(self, monkeypatch, tmp_path, caplog):
"""Should skip migration when .migration_complete sentinel already exists."""
self._clean_env(monkeypatch)
legacy_dir = tmp_path / "legacy"
legacy_dir.mkdir()
(legacy_dir / "data.bin").write_text("legacy")
new_dir = tmp_path / "new"
new_dir.mkdir()
(new_dir / ".migration_complete").write_text("")
from mem0.vector_stores.configs import _migrate_legacy_data
with patch("mem0.vector_stores.configs.Path") as mock_path_cls:
real_legacy = Path(str(legacy_dir))
real_new = Path(str(new_dir))
mock_path_cls.side_effect = lambda p: real_legacy if "/tmp/" in str(p) else real_new
with patch("shutil.copytree") as mock_copytree:
_migrate_legacy_data("qdrant", str(new_dir))
mock_copytree.assert_not_called()
def test_migration_failure_falls_back_to_warning(self, monkeypatch, tmp_path, caplog):
"""If migration fails, should log a warning with manual instructions."""
self._clean_env(monkeypatch)
legacy_dir = tmp_path / "legacy"
legacy_dir.mkdir()
(legacy_dir / "data.bin").write_text("legacy")
from mem0.vector_stores.configs import _migrate_legacy_data
with patch("mem0.vector_stores.configs.Path") as mock_path_cls:
real_legacy = Path(str(legacy_dir))
mock_new_path = MagicMock()
mock_new_path.exists.return_value = False
mock_sentinel = MagicMock()
mock_sentinel.exists.return_value = False
mock_new_path.__truediv__ = MagicMock(return_value=mock_sentinel)
mock_path_cls.side_effect = lambda p: real_legacy if "/tmp/" in str(p) else mock_new_path
with patch("shutil.copytree", side_effect=PermissionError("denied")):
with caplog.at_level(logging.WARNING, logger="mem0.vector_stores.configs"):
_migrate_legacy_data("qdrant", "/new/path")
assert "denied" in caplog.text or "manually" in caplog.text.lower() or "move" in caplog.text.lower()
def test_no_migration_when_explicit_path_provided(self, monkeypatch, caplog):
"""Should not attempt migration when user provides explicit path."""
self._clean_env(monkeypatch)
with caplog.at_level(logging.WARNING, logger="mem0.vector_stores.configs"):
VectorStoreConfig(provider="qdrant", config={"path": "/my/path"})
assert "migrat" not in caplog.text.lower()
# ---------------------------------------------------------------------------
# Cross-platform / issue #4279 scenario tests
# ---------------------------------------------------------------------------
class TestIssue4279Scenarios:
"""End-to-end tests for the specific scenarios described in issue #4279."""
def _clean_env(self, monkeypatch):
for var in ("MEM0_DATA_DIR", "XDG_DATA_HOME", "APPDATA"):
monkeypatch.delenv(var, raising=False)
def test_windows_no_tmp(self, monkeypatch):
"""Windows doesn't have /tmp — APPDATA should be used."""
self._clean_env(monkeypatch)
monkeypatch.setenv("APPDATA", "C:\\Users\\test\\AppData\\Roaming")
for provider in ("qdrant", "chroma", "faiss"):
path = get_default_vector_store_path(provider)
assert not path.startswith("/tmp"), f"Windows path for {provider} still uses /tmp"
assert "AppData" in path
def test_linux_systemd_with_xdg(self, monkeypatch):
"""Linux systemd services should respect XDG_DATA_HOME."""
self._clean_env(monkeypatch)
monkeypatch.setenv("XDG_DATA_HOME", "/var/lib/myservice")
path = get_default_vector_store_path("qdrant")
assert path == "/var/lib/myservice/mem0/qdrant"
def test_docker_with_custom_data_dir(self, monkeypatch):
"""Docker users can mount a volume and point MEM0_DATA_DIR to it."""
self._clean_env(monkeypatch)
monkeypatch.setenv("MEM0_DATA_DIR", "/data/mem0")
path = get_default_vector_store_path("qdrant")
assert path == "/data/mem0/qdrant"
def test_macos_default_is_persistent(self, monkeypatch):
"""macOS default should be under home directory, not /tmp."""
self._clean_env(monkeypatch)
path = get_default_vector_store_path("qdrant")
assert path.startswith(str(Path.home()))
assert "/tmp" not in path
def test_all_affected_providers_fixed(self, monkeypatch):
"""All providers with a path field (qdrant, chroma, faiss) should be fixed."""
self._clean_env(monkeypatch)
for provider in ("qdrant", "chroma", "faiss"):
vc = VectorStoreConfig(provider=provider, config={})
assert "/tmp" not in vc.config.path, (
f"Provider '{provider}' still defaults to /tmp: {vc.config.path}"
)