"""Tests for debug tools."""

import pytest
from unittest.mock import MagicMock

from unreal_mcp.tools.debug import analyze_crash_dump


@pytest.mark.asyncio
async def test_analyze_crash_dump_null_pointer(
    mock_connection: MagicMock,
) -> None:
    """Test crash dump analysis for null pointer."""
    crash_log = """
    Access violation - code c0000005 (first/second chance not available)
    Unreal Engine is exiting due to D3D device being lost.
    NullPointerException at Weapon.cpp:145
    """

    result = await analyze_crash_dump(mock_connection, crash_log)

    assert result["success"] is True
    assert "Null pointer" in result["data"]["root_cause"]
    assert result["data"]["file"] == "Weapon.cpp"
    assert result["data"]["line"] == 145


@pytest.mark.asyncio
async def test_analyze_crash_dump_array_bounds(
    mock_connection: MagicMock,
) -> None:
    """Test crash dump analysis for array out of bounds."""
    crash_log = "Array index out of bounds: index 10 from array of size 5"

    result = await analyze_crash_dump(mock_connection, crash_log)

    assert result["success"] is True
    assert "Array" in result["data"]["root_cause"]
    assert "IsValidIndex" in result["data"]["fix_suggestion"]


@pytest.mark.asyncio
async def test_analyze_crash_dump_stack_overflow(
    mock_connection: MagicMock,
) -> None:
    """Test crash dump analysis for stack overflow."""
    crash_log = "Stack overflow error in recursive function call"

    result = await analyze_crash_dump(mock_connection, crash_log)

    assert result["success"] is True
    assert "Stack overflow" in result["data"]["root_cause"]


@pytest.mark.asyncio
async def test_analyze_crash_dump_division_zero(
    mock_connection: MagicMock,
) -> None:
    """Test crash dump analysis for division by zero."""
    crash_log = "Divide by zero error in calculation"

    result = await analyze_crash_dump(mock_connection, crash_log)

    assert result["success"] is True
    assert "Division by zero" in result["data"]["root_cause"]
    assert "SMALL_NUMBER" in result["data"]["fix_suggestion"]