import pytest

from .types import ClientRegistry, CommandRunner

@pytest.mark.asyncio
async def test_ping_command(ssh_command_runner: CommandRunner, client_registry: ClientRegistry) -> None:
    # Register a test client with default policies and no secrets
    await client_registry['add_client']('test-pinger')

    result = await ssh_command_runner("test-pinger", "ping")

    assert result.exit_status == 0
    assert result.stdout is not None
    assert isinstance(result.stdout, str)
    assert result.stdout.rstrip() == "PONG"