import os

from catfish.utils.processes import is_process_running
from catfish.utils.sockets import stdout_socket_for_pid
from catfish.worker.server import read_from_stdout_socket, send_to_server
from tests import BaseWorkerTestCase


class WorkerServerTestCase(BaseWorkerTestCase):
    def test_server_creates_process(self):
        response = send_to_server({"type": "process", "command": self.DUMMY_EXE})
        self.assertTrue(is_process_running(response["pid"]))

    def test_unknown_command_type(self):
        response = send_to_server({"type": "nothing"})
        self.assertEqual(response, {"error": "Invalid command"})

    def test_ping(self):
        response = send_to_server({"type": "ping"})
        self.assertEqual(response, {"ping": "pong"})


class ProcessLogsTestCase(BaseWorkerTestCase):
    def test_creates_socket(self):
        response = send_to_server({"type": "process", "command": self.DUMMY_EXE})
        stdout_socket = stdout_socket_for_pid(response["pid"])
        self.assertTrue(os.path.exists(stdout_socket))

    def test_gets_logs(self):
        response = send_to_server({"type": "process", "command": self.DUMMY_EXE})
        stdout_socket = stdout_socket_for_pid(response["pid"])
        stdout_iter = read_from_stdout_socket(stdout_socket)
        for i in range(3):
            self.assertEqual(next(stdout_iter), "Round {}".format(i))