import asyncio
import json

def test_success(plugin, readline):
    request = {
        "jsonrpc": "2.0",
        "method": "launch_game",
        "params": {
            "game_id": "3"
        }
    }

    readline.side_effect = [json.dumps(request), ""]
    plugin.get_owned_games.return_value = None
    asyncio.run(plugin.run())
    plugin.launch_game.assert_called_with(game_id="3")