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mcp-nextcloud/tests/unit/providers/test_registry.py
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Chris CoutinhoandClaude Opus 4.7 20f1770794 refactor(providers): address PR #772 review round 2 — guard, naming, docs, tests
- _retry.py: replace `assert last_error is not None` with explicit
  `if last_error is None: raise RuntimeError(...)` so the original
  rate-limit error is preserved under `python -O`.
- openai.py: drop the `_retry_factory` alias chain; rename the bound
  decorator to `_retry_429` to match the pattern in mistral.py.
- mistral.py: comment the imports so future reviewers understand why
  `from mistralai.client import …` is the canonical path on 2.x (no
  top-level `__init__.py`; no `mistralai.models` subpackage either).
- docs/configuration.md: add `OPENAI_GENERATION_MODEL` and
  `OLLAMA_GENERATION_MODEL` rows to the env-var reference table.
- test_mistral.py: add direct unit test for the `_is_rate_limit`
  predicate (429 → True, 500 → False, missing-attr → False).
- test_registry.py: stub `mistralai.client.Mistral` in the registry
  picker test, mirroring the Ollama sibling, so the test doesn't
  depend on the SDK accepting arbitrary keys.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-08 18:11:57 +02:00

134 lines
4.4 KiB
Python

"""Unit tests for ProviderRegistry — dynaconf-driven auto-detection."""
import pytest
from nextcloud_mcp_server.config import _reload_config
from nextcloud_mcp_server.providers import (
BedrockProvider,
MistralProvider,
OllamaProvider,
OpenAIProvider,
SimpleProvider,
get_provider,
reset_provider,
)
from nextcloud_mcp_server.providers.bedrock import BOTO3_AVAILABLE
def _clear_provider_envs(monkeypatch: pytest.MonkeyPatch) -> None:
"""Strip every provider-selection env var so each test starts clean."""
for name in (
"AWS_REGION",
"AWS_ACCESS_KEY_ID",
"AWS_SECRET_ACCESS_KEY",
"BEDROCK_EMBEDDING_MODEL",
"BEDROCK_GENERATION_MODEL",
"OPENAI_API_KEY",
"OPENAI_BASE_URL",
"OPENAI_EMBEDDING_MODEL",
"OPENAI_GENERATION_MODEL",
"MISTRAL_API_KEY",
"MISTRAL_BASE_URL",
"MISTRAL_EMBEDDING_MODEL",
"OLLAMA_BASE_URL",
"OLLAMA_EMBEDDING_MODEL",
"OLLAMA_GENERATION_MODEL",
"OLLAMA_VERIFY_SSL",
"SIMPLE_EMBEDDING_DIMENSION",
):
monkeypatch.delenv(name, raising=False)
@pytest.fixture
def clean_provider_env(monkeypatch):
"""Reset provider singleton + dynaconf cache around each test."""
_clear_provider_envs(monkeypatch)
reset_provider()
_reload_config()
yield monkeypatch
reset_provider()
@pytest.mark.unit
def test_registry_falls_back_to_simple(clean_provider_env):
"""No provider env set → SimpleProvider (with default dimension)."""
provider = get_provider()
assert isinstance(provider, SimpleProvider)
assert provider.get_dimension() == 384
@pytest.mark.unit
def test_registry_picks_simple_with_custom_dimension(clean_provider_env):
"""SIMPLE_EMBEDDING_DIMENSION flows through dynaconf to SimpleProvider."""
clean_provider_env.setenv("SIMPLE_EMBEDDING_DIMENSION", "512")
_reload_config()
provider = get_provider()
assert isinstance(provider, SimpleProvider)
assert provider.get_dimension() == 512
@pytest.mark.unit
def test_registry_picks_mistral_when_api_key_set(clean_provider_env, mocker):
"""MISTRAL_API_KEY alone is enough to select MistralProvider."""
# MistralProvider eagerly constructs the SDK client in __init__; stub it
# so the test doesn't depend on the SDK accepting arbitrary keys.
mocker.patch("nextcloud_mcp_server.providers.mistral.Mistral")
clean_provider_env.setenv("MISTRAL_API_KEY", "test-key")
_reload_config()
provider = get_provider()
assert isinstance(provider, MistralProvider)
@pytest.mark.unit
def test_registry_picks_ollama_when_base_url_set(clean_provider_env, mocker):
"""OLLAMA_BASE_URL selects OllamaProvider."""
# OllamaProvider eagerly probes /api/tags in __init__; stub it out.
mocker.patch(
"nextcloud_mcp_server.providers.ollama.OllamaProvider._check_model_is_loaded"
)
clean_provider_env.setenv("OLLAMA_BASE_URL", "http://localhost:11434")
_reload_config()
provider = get_provider()
assert isinstance(provider, OllamaProvider)
@pytest.mark.unit
def test_registry_openai_wins_over_mistral_and_ollama(clean_provider_env):
"""OpenAI takes priority when multiple provider env vars are set."""
clean_provider_env.setenv("OPENAI_API_KEY", "openai-key")
clean_provider_env.setenv("MISTRAL_API_KEY", "mistral-key")
clean_provider_env.setenv("OLLAMA_BASE_URL", "http://localhost:11434")
_reload_config()
provider = get_provider()
assert isinstance(provider, OpenAIProvider)
@pytest.mark.unit
def test_registry_mistral_wins_over_ollama(clean_provider_env):
"""Mistral takes priority over Ollama when both are configured."""
clean_provider_env.setenv("MISTRAL_API_KEY", "mistral-key")
clean_provider_env.setenv("OLLAMA_BASE_URL", "http://localhost:11434")
_reload_config()
provider = get_provider()
assert isinstance(provider, MistralProvider)
@pytest.mark.unit
def test_registry_bedrock_wins_when_aws_region_set(clean_provider_env):
"""AWS_REGION alone routes to Bedrock, even with other providers configured."""
if not BOTO3_AVAILABLE:
pytest.skip("boto3 not installed")
clean_provider_env.setenv("AWS_REGION", "us-east-1")
clean_provider_env.setenv("OPENAI_API_KEY", "openai-key")
clean_provider_env.setenv("MISTRAL_API_KEY", "mistral-key")
_reload_config()
provider = get_provider()
assert isinstance(provider, BedrockProvider)