import unittest
import unittest.mock

from pythonosc import dispatcher
from pythonosc import osc_server

_SIMPLE_PARAM_INT_MSG = (
    b"/SYNC\x00\x00\x00"
    b",i\x00\x00"
    b"\x00\x00\x00\x04")

# Regression test for a datagram that should NOT be stripped, ever...
_SIMPLE_PARAM_INT_9 = b'/debug\x00\x00,i\x00\x00\x00\x00\x00\t'

_SIMPLE_MSG_NO_PARAMS = b"/SYNC\x00\x00\x00"


class TestOscServer(unittest.TestCase):
    def test_is_valid_request(self):
        self.assertTrue(
            osc_server._is_valid_request([b'#bundle\x00foobar']))
        self.assertTrue(
            osc_server._is_valid_request([b'/address/1/2/3,foobar']))
        self.assertFalse(
            osc_server._is_valid_request([b'']))


class TestUDPHandler(unittest.TestCase):
    def setUp(self):
        super().setUp()
        self.dispatcher = dispatcher.Dispatcher()
        # We do not want to create real UDP connections during unit tests.
        self.server = unittest.mock.Mock(spec=osc_server.BlockingOSCUDPServer)
        # Need to attach property mocks to types, not objects... weird.
        type(self.server).dispatcher = unittest.mock.PropertyMock(
            return_value=self.dispatcher)
        self.client_address = ("127.0.0.1", 8080)

    def test_no_match(self):
        mock_meth = unittest.mock.MagicMock()
        self.dispatcher.map("/foobar", mock_meth)
        osc_server._UDPHandler(
            [_SIMPLE_PARAM_INT_MSG, None], self.client_address, self.server)
        self.assertFalse(mock_meth.called)

    def test_match_with_args(self):
        mock_meth = unittest.mock.MagicMock()
        self.dispatcher.map("/SYNC", mock_meth, 1, 2, 3)
        osc_server._UDPHandler(
            [_SIMPLE_PARAM_INT_MSG, None], self.client_address, self.server)
        mock_meth.assert_called_with("/SYNC", [1, 2, 3], 4)

    def test_match_int9(self):
        mock_meth = unittest.mock.MagicMock()
        self.dispatcher.map("/debug", mock_meth)
        osc_server._UDPHandler(
            [_SIMPLE_PARAM_INT_9, None], self.client_address, self.server)
        self.assertTrue(mock_meth.called)
        mock_meth.assert_called_with("/debug", 9)

    def test_match_without_args(self):
        mock_meth = unittest.mock.MagicMock()
        self.dispatcher.map("/SYNC", mock_meth)
        osc_server._UDPHandler(
            [_SIMPLE_MSG_NO_PARAMS, None], self.client_address, self.server)
        mock_meth.assert_called_with("/SYNC")

    def test_match_default_handler(self):
        mock_meth = unittest.mock.MagicMock()
        self.dispatcher.set_default_handler(mock_meth)
        osc_server._UDPHandler(
            [_SIMPLE_MSG_NO_PARAMS, None], self.client_address, self.server)
        mock_meth.assert_called_with("/SYNC")


if __name__ == "__main__":
    unittest.main()
