"""Tests for IPMI client."""
import pytest
from unittest.mock import Mock, patch
from backend.ipmi_client import IPMIClient, TemperatureReading


def test_fan_mapping():
    """Test fan ID mapping."""
    assert IPMIClient.FAN_MAPPING["0x00"] == 1
    assert IPMIClient.FAN_MAPPING["0x06"] == 7


def test_hex_to_percent_conversion():
    """Test hex to percent conversion mapping."""
    assert IPMIClient.HEX_TO_PERCENT["0x00"] == 0
    assert IPMIClient.HEX_TO_PERCENT["0x64"] == 100
    assert IPMIClient.PERCENT_TO_HEX[50] == "0x32"
    assert IPMIClient.PERCENT_TO_HEX[100] == "0x64"


def test_determine_temp_location():
    """Test temperature location detection."""
    client = IPMIClient("192.168.1.1", "user", "pass")
    
    assert client._determine_temp_location("CPU1 Temp") == "cpu1"
    assert client._determine_temp_location("CPU2 Temp") == "cpu2"
    assert client._determine_temp_location("Processor 1") == "cpu1"
    assert client._determine_temp_location("Inlet Temp") == "inlet"
    assert client._determine_temp_location("Exhaust Temp") == "exhaust"
    assert client._determine_temp_location("DIMM 1") == "memory"
    assert client._determine_temp_location("Unknown Sensor") == "other"


def test_determine_sensor_type():
    """Test sensor type detection."""
    client = IPMIClient("192.168.1.1", "user", "pass")
    
    assert client._determine_sensor_type("CPU Temp") == "temperature"
    assert client._determine_sensor_type("Fan 1 RPM") == "fan"
    assert client._determine_sensor_type("12V") == "voltage"
    assert client._determine_sensor_type("Power Supply") == "power"


def test_parse_sensor_value():
    """Test sensor value parsing."""
    client = IPMIClient("192.168.1.1", "user", "pass")
    
    value, unit = client._parse_sensor_value("45 degrees C")
    assert value == 45.0
    assert unit == "°C"
    
    value, unit = client._parse_sensor_value("4200 RPM")
    assert value == 4200.0
    assert unit == "RPM"
    
    value, unit = client._parse_sensor_value("12.05 Volts")
    assert value == 12.05
    assert unit == "V"
    
    value, unit = client._parse_sensor_value("250 Watts")
    assert value == 250.0
    assert unit == "W"


@patch('backend.ipmi_client.subprocess.run')
def test_test_connection(mock_run):
    """Test connection test method."""
    mock_run.return_value = Mock(returncode=0, stdout="", stderr="")
    
    client = IPMIClient("192.168.1.1", "user", "pass")
    result = client.test_connection()
    
    assert result is True
    mock_run.assert_called_once()


@patch('backend.ipmi_client.subprocess.run')
def test_test_connection_failure(mock_run):
    """Test connection test with failure."""
    mock_run.return_value = Mock(returncode=1, stdout="", stderr="Error")
    
    client = IPMIClient("192.168.1.1", "user", "pass")
    result = client.test_connection()
    
    assert result is False