unraid-mcp/tests/test_info.py

"""Tests for unraid_info tool."""

from collections.abc import Generator
from unittest.mock import AsyncMock, patch

import pytest
from conftest import make_tool_fn

from unraid_mcp.core.exceptions import ToolError
from unraid_mcp.tools.info import (
    _analyze_disk_health,
    _process_array_status,
    _process_system_info,
)


# --- Unit tests for helper functions ---


class TestProcessSystemInfo:
    def test_processes_os_info(self) -> None:
        raw = {
            "os": {"distro": "Unraid", "release": "7.2", "platform": "linux", "arch": "x86_64", "hostname": "tower", "uptime": 3600},
            "cpu": {"manufacturer": "AMD", "brand": "Ryzen", "cores": 8, "threads": 16},
        }
        result = _process_system_info(raw)
        assert "summary" in result
        assert "details" in result
        assert result["summary"]["hostname"] == "tower"
        assert "AMD" in result["summary"]["cpu"]

    def test_handles_missing_fields(self) -> None:
        result = _process_system_info({})
        assert result["summary"] == {"memory_summary": "Memory information not available."}

    def test_processes_memory_layout(self) -> None:
        raw = {"memory": {"layout": [{"bank": "0", "type": "DDR4", "clockSpeed": 3200, "manufacturer": "G.Skill", "partNum": "XYZ"}]}}
        result = _process_system_info(raw)
        assert len(result["summary"]["memory_layout_details"]) == 1


class TestAnalyzeDiskHealth:
    def test_counts_healthy_disks(self) -> None:
        disks = [{"status": "DISK_OK"}, {"status": "DISK_OK"}]
        result = _analyze_disk_health(disks)
        assert result["healthy"] == 2

    def test_counts_failed_disks(self) -> None:
        disks = [{"status": "DISK_DSBL"}, {"status": "DISK_INVALID"}]
        result = _analyze_disk_health(disks)
        assert result["failed"] == 2

    def test_counts_warning_disks(self) -> None:
        disks = [{"status": "DISK_OK", "warning": 45}]
        result = _analyze_disk_health(disks)
        assert result["warning"] == 1
        assert result["critical"] == 0

    def test_counts_critical_disks(self) -> None:
        disks = [{"status": "DISK_OK", "critical": 55}]
        result = _analyze_disk_health(disks)
        assert result["critical"] == 1
        assert result["warning"] == 0
        assert result["healthy"] == 0

    def test_critical_takes_precedence_over_warning(self) -> None:
        disks = [{"status": "DISK_OK", "warning": 45, "critical": 55}]
        result = _analyze_disk_health(disks)
        assert result["critical"] == 1
        assert result["warning"] == 0

    def test_counts_missing_disks(self) -> None:
        disks = [{"status": "DISK_NP"}]
        result = _analyze_disk_health(disks)
        assert result["missing"] == 1

    def test_empty_list(self) -> None:
        result = _analyze_disk_health([])
        assert result["healthy"] == 0


class TestProcessArrayStatus:
    def test_basic_array(self) -> None:
        raw = {
            "state": "STARTED",
            "capacity": {"kilobytes": {"free": "1048576", "used": "524288", "total": "1572864"}},
            "parities": [{"status": "DISK_OK"}],
            "disks": [{"status": "DISK_OK"}],
            "caches": [],
        }
        result = _process_array_status(raw)
        assert result["summary"]["state"] == "STARTED"
        assert result["summary"]["overall_health"] == "HEALTHY"

    def test_critical_disk_threshold_array(self) -> None:
        raw = {
            "state": "STARTED",
            "parities": [],
            "disks": [{"status": "DISK_OK", "critical": 55}],
            "caches": [],
        }
        result = _process_array_status(raw)
        assert result["summary"]["overall_health"] == "CRITICAL"

    def test_degraded_array(self) -> None:
        raw = {
            "state": "STARTED",
            "parities": [],
            "disks": [{"status": "DISK_NP"}],
            "caches": [],
        }
        result = _process_array_status(raw)
        assert result["summary"]["overall_health"] == "DEGRADED"


# --- Integration tests for the tool function ---


@pytest.fixture
def _mock_graphql() -> Generator[AsyncMock, None, None]:
    with patch("unraid_mcp.tools.info.make_graphql_request", new_callable=AsyncMock) as mock:
        yield mock


def _make_tool():
    return make_tool_fn("unraid_mcp.tools.info", "register_info_tool", "unraid_info")


class TestUnraidInfoTool:
    async def test_overview_action(self, _mock_graphql: AsyncMock) -> None:
        _mock_graphql.return_value = {
            "info": {
                "os": {"distro": "Unraid", "release": "7.2", "platform": "linux", "arch": "x86_64", "hostname": "test"},
                "cpu": {"manufacturer": "Intel", "brand": "i7", "cores": 4, "threads": 8},
            }
        }
        tool_fn = _make_tool()
        result = await tool_fn(action="overview")
        assert "summary" in result
        _mock_graphql.assert_called_once()

    async def test_ups_device_requires_device_id(self, _mock_graphql: AsyncMock) -> None:
        tool_fn = _make_tool()
        with pytest.raises(ToolError, match="device_id is required"):
            await tool_fn(action="ups_device")

    async def test_network_action(self, _mock_graphql: AsyncMock) -> None:
        _mock_graphql.return_value = {"network": {"id": "net:1", "accessUrls": []}}
        tool_fn = _make_tool()
        result = await tool_fn(action="network")
        assert result["id"] == "net:1"

    async def test_connect_action(self, _mock_graphql: AsyncMock) -> None:
        _mock_graphql.return_value = {
            "connect": {"status": "connected", "sandbox": False, "flashGuid": "abc123"}
        }
        tool_fn = _make_tool()
        result = await tool_fn(action="connect")
        assert result["status"] == "connected"

    async def test_generic_exception_wraps(self, _mock_graphql: AsyncMock) -> None:
        _mock_graphql.side_effect = RuntimeError("unexpected")
        tool_fn = _make_tool()
        with pytest.raises(ToolError, match="unexpected"):
            await tool_fn(action="online")

    async def test_metrics(self, _mock_graphql: AsyncMock) -> None:
        _mock_graphql.return_value = {"metrics": {"cpu": {"used": 25.5}, "memory": {"used": 8192, "total": 32768}}}
        tool_fn = _make_tool()
        result = await tool_fn(action="metrics")
        assert result["cpu"]["used"] == 25.5

    async def test_services(self, _mock_graphql: AsyncMock) -> None:
        _mock_graphql.return_value = {"services": [{"name": "docker", "state": "running"}]}
        tool_fn = _make_tool()
        result = await tool_fn(action="services")
        assert len(result["services"]) == 1
        assert result["services"][0]["name"] == "docker"

    async def test_settings(self, _mock_graphql: AsyncMock) -> None:
        _mock_graphql.return_value = {"settings": {"unified": {"values": {"timezone": "US/Eastern"}}}}
        tool_fn = _make_tool()
        result = await tool_fn(action="settings")
        assert result["timezone"] == "US/Eastern"

    async def test_settings_non_dict_values(self, _mock_graphql: AsyncMock) -> None:
        """Settings values that are not a dict should be wrapped in {'raw': ...}."""
        _mock_graphql.return_value = {"settings": {"unified": {"values": "raw_string"}}}
        tool_fn = _make_tool()
        result = await tool_fn(action="settings")
        assert result == {"raw": "raw_string"}

    async def test_servers(self, _mock_graphql: AsyncMock) -> None:
        _mock_graphql.return_value = {"servers": [{"id": "s:1", "name": "tower", "status": "online"}]}
        tool_fn = _make_tool()
        result = await tool_fn(action="servers")
        assert len(result["servers"]) == 1
        assert result["servers"][0]["name"] == "tower"

    async def test_flash(self, _mock_graphql: AsyncMock) -> None:
        _mock_graphql.return_value = {"flash": {"id": "f:1", "guid": "abc", "product": "SanDisk", "vendor": "SanDisk", "size": 32000000000}}
        tool_fn = _make_tool()
        result = await tool_fn(action="flash")
        assert result["product"] == "SanDisk"

    async def test_ups_devices(self, _mock_graphql: AsyncMock) -> None:
        _mock_graphql.return_value = {"upsDevices": [{"id": "ups:1", "model": "APC", "status": "online", "charge": 100}]}
        tool_fn = _make_tool()
        result = await tool_fn(action="ups_devices")
        assert len(result["ups_devices"]) == 1
        assert result["ups_devices"][0]["model"] == "APC"


class TestInfoNetworkErrors:
    """Tests for network-level failures in info operations."""

    async def test_overview_http_401_unauthorized(self, _mock_graphql: AsyncMock) -> None:
        """HTTP 401 Unauthorized should propagate as ToolError."""
        _mock_graphql.side_effect = ToolError("HTTP error 401: Unauthorized")
        tool_fn = _make_tool()
        with pytest.raises(ToolError, match="401"):
            await tool_fn(action="overview")

    async def test_overview_connection_refused(self, _mock_graphql: AsyncMock) -> None:
        """Connection refused should propagate as ToolError."""
        _mock_graphql.side_effect = ToolError(
            "Network connection error: [Errno 111] Connection refused"
        )
        tool_fn = _make_tool()
        with pytest.raises(ToolError, match="Connection refused"):
            await tool_fn(action="overview")

    async def test_network_json_decode_error(self, _mock_graphql: AsyncMock) -> None:
        """Invalid JSON from API should propagate as ToolError."""
        _mock_graphql.side_effect = ToolError(
            "Invalid JSON response from Unraid API: Expecting value"
        )
        tool_fn = _make_tool()
        with pytest.raises(ToolError, match="Invalid JSON"):
            await tool_fn(action="network")