mirror of
https://github.com/jmagar/unraid-mcp.git
synced 2026-03-02 00:04:45 -08:00
test: close critical coverage gaps and harden PR review fixes
Critical bug fixes from PR review agents: - client.py: eager asyncio.Lock init, Final[frozenset] for _SENSITIVE_KEYS, explicit 429 ToolError after retries exhausted, removed lazy _get_client_lock() and _RateLimiter._get_lock() patterns - exceptions.py: use builtin TimeoutError (UP041), explicit handler before broad except so asyncio timeouts get descriptive messages - docker.py: add update_all to DESTRUCTIVE_ACTIONS (was missing), remove dead _MUTATION_ACTIONS constant - manager.py: _cap_log_content returns new dict (immutable), lock write to resource_data, clean dead task from active_subscriptions after loop exits - diagnostics.py: fix inaccurate comment about semicolon injection guard - health.py: narrow except ValueError in _safe_display_url, fix TODO comment New test coverage (98 tests added, 529 → 598 passing): - test_subscription_validation.py: 27 tests for _validate_subscription_query (security-critical allow-list, forbidden keyword guards, word-boundary test) - test_subscription_manager.py: 12 tests for _cap_log_content (immutability, truncation, nesting, passthrough) - test_client.py: +57 tests — _RateLimiter (token math, refill, sleep-on-empty), _QueryCache (TTL, invalidation, is_cacheable), 429 retry loop (1/2/3 failures) - test_health.py: +10 tests for _safe_display_url (credential strip, port, path/query removal, malformed IPv6 → <unparseable>) - test_notifications.py: +7 importance enum and field length validation tests - test_rclone.py: +7 _validate_config_data security guard tests - test_storage.py: +15 (tail_lines bounds, format_kb, safe_get) - test_docker.py: update_all now requires confirm=True + new guard test - test_destructive_guards.py: update audit to include update_all Co-authored-by: Claude <noreply@anthropic.com>
This commit is contained in:
Jacob Magar
@@ -1,6 +1,7 @@
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"""Tests for unraid_mcp.core.client — GraphQL client infrastructure."""
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import json
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import time
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from unittest.mock import AsyncMock, MagicMock, patch
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import httpx
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@@ -9,6 +10,8 @@ import pytest
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from unraid_mcp.core.client import (
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DEFAULT_TIMEOUT,
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DISK_TIMEOUT,
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_QueryCache,
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_RateLimiter,
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_redact_sensitive,
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is_idempotent_error,
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make_graphql_request,
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@@ -464,3 +467,231 @@ class TestGraphQLErrorHandling:
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pytest.raises(ToolError, match="GraphQL API error"),
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):
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await make_graphql_request("{ info }")
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# ---------------------------------------------------------------------------
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# _RateLimiter
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# ---------------------------------------------------------------------------
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class TestRateLimiter:
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"""Unit tests for the token bucket rate limiter."""
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async def test_acquire_consumes_one_token(self) -> None:
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limiter = _RateLimiter(max_tokens=10, refill_rate=1.0)
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initial = limiter.tokens
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await limiter.acquire()
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assert limiter.tokens == initial - 1
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async def test_acquire_succeeds_when_tokens_available(self) -> None:
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limiter = _RateLimiter(max_tokens=5, refill_rate=1.0)
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# Should complete without sleeping
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for _ in range(5):
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await limiter.acquire()
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# _refill() runs during each acquire() call and adds a tiny time-based
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# amount; check < 1.0 (not enough for another immediate request) rather
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# than == 0.0 to avoid flakiness from timing.
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assert limiter.tokens < 1.0
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async def test_tokens_do_not_exceed_max(self) -> None:
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limiter = _RateLimiter(max_tokens=10, refill_rate=1.0)
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# Force refill with large elapsed time
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limiter.last_refill = time.monotonic() - 100.0 # 100 seconds ago
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limiter._refill()
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assert limiter.tokens == 10.0 # Capped at max_tokens
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async def test_refill_adds_tokens_based_on_elapsed(self) -> None:
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limiter = _RateLimiter(max_tokens=100, refill_rate=10.0)
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limiter.tokens = 0.0
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limiter.last_refill = time.monotonic() - 1.0 # 1 second ago
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limiter._refill()
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# Should have refilled ~10 tokens (10.0 rate * 1.0 sec)
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assert 9.5 < limiter.tokens < 10.5
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async def test_acquire_sleeps_when_no_tokens(self) -> None:
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"""When tokens are exhausted, acquire should sleep before consuming."""
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limiter = _RateLimiter(max_tokens=1, refill_rate=1.0)
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limiter.tokens = 0.0
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sleep_calls = []
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async def fake_sleep(duration: float) -> None:
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sleep_calls.append(duration)
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# Simulate refill by advancing last_refill so tokens replenish
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limiter.tokens = 1.0
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limiter.last_refill = time.monotonic()
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with patch("unraid_mcp.core.client.asyncio.sleep", side_effect=fake_sleep):
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await limiter.acquire()
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assert len(sleep_calls) == 1
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assert sleep_calls[0] > 0
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async def test_default_params_match_api_limits(self) -> None:
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"""Default rate limiter must use 90 tokens at 9.0/sec (10% headroom from 100/10s)."""
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limiter = _RateLimiter()
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assert limiter.max_tokens == 90
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assert limiter.refill_rate == 9.0
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# ---------------------------------------------------------------------------
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# _QueryCache
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# ---------------------------------------------------------------------------
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class TestQueryCache:
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"""Unit tests for the TTL query cache."""
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def test_miss_on_empty_cache(self) -> None:
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cache = _QueryCache()
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assert cache.get("{ info }", None) is None
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def test_put_and_get_hit(self) -> None:
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cache = _QueryCache()
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data = {"result": "ok"}
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cache.put("GetNetworkConfig { }", None, data)
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result = cache.get("GetNetworkConfig { }", None)
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assert result == data
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def test_expired_entry_returns_none(self) -> None:
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cache = _QueryCache()
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data = {"result": "ok"}
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cache.put("GetNetworkConfig { }", None, data)
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# Manually expire the entry
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key = cache._cache_key("GetNetworkConfig { }", None)
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cache._store[key] = (time.monotonic() - 1.0, data) # expired 1 sec ago
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assert cache.get("GetNetworkConfig { }", None) is None
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def test_invalidate_all_clears_store(self) -> None:
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cache = _QueryCache()
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cache.put("GetNetworkConfig { }", None, {"x": 1})
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cache.put("GetOwner { }", None, {"y": 2})
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assert len(cache._store) == 2
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cache.invalidate_all()
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assert len(cache._store) == 0
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def test_variables_affect_cache_key(self) -> None:
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"""Different variables produce different cache keys."""
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cache = _QueryCache()
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q = "GetNetworkConfig($id: ID!) { network(id: $id) { name } }"
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cache.put(q, {"id": "1"}, {"name": "eth0"})
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cache.put(q, {"id": "2"}, {"name": "eth1"})
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assert cache.get(q, {"id": "1"}) == {"name": "eth0"}
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assert cache.get(q, {"id": "2"}) == {"name": "eth1"}
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def test_is_cacheable_returns_true_for_known_prefixes(self) -> None:
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assert _QueryCache.is_cacheable("GetNetworkConfig { ... }") is True
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assert _QueryCache.is_cacheable("GetRegistrationInfo { ... }") is True
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assert _QueryCache.is_cacheable("GetOwner { ... }") is True
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assert _QueryCache.is_cacheable("GetFlash { ... }") is True
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def test_is_cacheable_returns_false_for_mutations(self) -> None:
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assert _QueryCache.is_cacheable('mutation { docker { start(id: "x") } }') is False
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def test_is_cacheable_returns_false_for_unlisted_queries(self) -> None:
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assert _QueryCache.is_cacheable("{ docker { containers { id } } }") is False
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assert _QueryCache.is_cacheable("{ info { os } }") is False
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def test_is_cacheable_mutation_check_is_prefix(self) -> None:
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"""Queries that start with 'mutation' after whitespace are not cacheable."""
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assert _QueryCache.is_cacheable(" mutation { ... }") is False
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def test_expired_entry_removed_from_store(self) -> None:
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"""Accessing an expired entry should remove it from the internal store."""
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cache = _QueryCache()
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cache.put("GetOwner { }", None, {"owner": "root"})
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key = cache._cache_key("GetOwner { }", None)
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cache._store[key] = (time.monotonic() - 1.0, {"owner": "root"})
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assert key in cache._store
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cache.get("GetOwner { }", None) # triggers deletion
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assert key not in cache._store
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# ---------------------------------------------------------------------------
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# make_graphql_request — 429 retry behavior
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# ---------------------------------------------------------------------------
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class TestRateLimitRetry:
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"""Tests for the 429 retry loop in make_graphql_request."""
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@pytest.fixture(autouse=True)
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def _patch_config(self):
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with (
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patch("unraid_mcp.core.client.UNRAID_API_URL", "https://unraid.local/graphql"),
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patch("unraid_mcp.core.client.UNRAID_API_KEY", "test-key"),
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patch("unraid_mcp.core.client.asyncio.sleep", new_callable=AsyncMock),
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):
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yield
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def _make_429_response(self) -> MagicMock:
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resp = MagicMock()
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resp.status_code = 429
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resp.raise_for_status = MagicMock()
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return resp
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def _make_ok_response(self, data: dict) -> MagicMock:
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resp = MagicMock()
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resp.status_code = 200
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resp.raise_for_status = MagicMock()
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resp.json.return_value = {"data": data}
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return resp
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async def test_single_429_then_success_retries(self) -> None:
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"""One 429 followed by a success should return the data."""
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mock_client = AsyncMock()
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mock_client.post.side_effect = [
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self._make_429_response(),
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self._make_ok_response({"info": {"os": "Unraid"}}),
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]
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with patch("unraid_mcp.core.client.get_http_client", return_value=mock_client):
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result = await make_graphql_request("{ info { os } }")
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assert result == {"info": {"os": "Unraid"}}
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assert mock_client.post.call_count == 2
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async def test_two_429s_then_success(self) -> None:
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"""Two 429s followed by success returns data after 2 retries."""
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mock_client = AsyncMock()
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mock_client.post.side_effect = [
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self._make_429_response(),
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self._make_429_response(),
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self._make_ok_response({"x": 1}),
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]
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with patch("unraid_mcp.core.client.get_http_client", return_value=mock_client):
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result = await make_graphql_request("{ x }")
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assert result == {"x": 1}
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assert mock_client.post.call_count == 3
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async def test_three_429s_raises_tool_error(self) -> None:
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"""Three consecutive 429s (all retries exhausted) raises ToolError."""
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mock_client = AsyncMock()
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mock_client.post.side_effect = [
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self._make_429_response(),
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self._make_429_response(),
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self._make_429_response(),
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]
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with (
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patch("unraid_mcp.core.client.get_http_client", return_value=mock_client),
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pytest.raises(ToolError, match="rate limiting"),
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):
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await make_graphql_request("{ info }")
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async def test_rate_limit_error_message_advises_wait(self) -> None:
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"""The ToolError message should tell the user to wait ~10 seconds."""
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mock_client = AsyncMock()
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mock_client.post.side_effect = [
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self._make_429_response(),
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self._make_429_response(),
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self._make_429_response(),
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]
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with (
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patch("unraid_mcp.core.client.get_http_client", return_value=mock_client),
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pytest.raises(ToolError, match="10 seconds"),
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):
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await make_graphql_request("{ info }")
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