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"""Async TCP Server tests.""" |
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3
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import asyncio |
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import errno |
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import logging |
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6
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from unittest.mock import MagicMock, patch |
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8
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from kytos.core.atcp_server import (KytosServer, KytosServerProtocol, |
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exception_handler) |
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# Using "nettest" TCP port as a way to avoid conflict with a running |
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# Kytos server on 6653. |
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1 |
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TEST_ADDRESS = ('127.0.0.1', 4138) |
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# pylint: disable=protected-access |
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16
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17
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class TestKytosServer: |
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"""Test if a Kytos Server will go up and receive connections.""" |
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20
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def setup_method(self): |
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"""Start new asyncio loop and a test TCP server.""" |
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# pylint: disable=attribute-defined-outside-init |
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self.server = KytosServer(TEST_ADDRESS, KytosServerProtocol, |
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None, "openflow") |
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self.server.serve_forever() |
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def test_connection_to_server(self): |
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"""Test if we really can connect to TEST_ADDRESS.""" |
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async def wait_and_go(): |
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"""Wait a little for the server to go up, then connect.""" |
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await asyncio.sleep(0.01) |
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# reader, writer = ... |
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_ = await asyncio.open_connection(*TEST_ADDRESS) |
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self.server.loop.run_until_complete(wait_and_go()) |
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def test_exception_handler_oserror(self, caplog): |
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"""Test the TCP Server Exception Handler. |
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40
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1. create mock OSError/TimeoutError instances |
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2. call exception_handler with them |
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3. ensure log is OK |
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""" |
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caplog.set_level(logging.INFO) |
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exception = TimeoutError() |
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context = {"exception": exception, |
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"transport": "unit_tests"} |
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exception_handler(self.server.loop, context) |
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exception2 = OSError(errno.EBADF, "Bad file descriptor") |
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context2 = {"exception": exception2, |
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"transport": "unit_tests"} |
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exception_handler(self.server.loop, context2) |
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assert caplog.record_tuples == [ |
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("kytos.core.atcp_server", |
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logging.INFO, |
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"Socket timeout: 'unit_tests'"), |
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("kytos.core.atcp_server", |
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logging.INFO, |
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"Socket closed: 'unit_tests'"), |
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] |
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65
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66
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class TestKytosServerProtocol: |
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"""KytosServerProtocol tests.""" |
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69
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def setup_method(self): |
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"""Instantiate a KytosServerProtocol.""" |
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# pylint: disable=attribute-defined-outside-init |
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loop = asyncio.new_event_loop() |
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asyncio.set_event_loop(loop) |
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75
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self.connection = MagicMock() |
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self.connection.address = 'addr' |
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self.connection.port = 123 |
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self.server_protocol = KytosServerProtocol() |
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self.server_protocol._loop = MagicMock() |
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self.server_protocol.server = MagicMock() |
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self.server_protocol.connection = self.connection |
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83
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84
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@patch('kytos.core.atcp_server.KytosEvent') |
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def test_data_received(self, mock_kytos_event): |
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"""Test data_received method.""" |
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buffers = self.server_protocol.server.controller.buffers |
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self.connection.protocol.name = 'protocol' |
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90
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self.server_protocol.data_received(b'data') |
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92
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expected_content = {'source': self.connection, 'new_data': b'data'} |
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expected_name = 'kytos/core.protocol.raw.in' |
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mock_kytos_event.assert_called_with(content=expected_content, |
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name=expected_name) |
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buffers.raw.aput.assert_called_with(mock_kytos_event.return_value) |
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98
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@patch('kytos.core.atcp_server.KytosEvent') |
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def test_connection_lost(self, mock_kytos_event): |
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"""Test connection_lost method.""" |
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buffers = self.server_protocol.server.controller.buffers |
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self.connection.protocol.name = 'protocol' |
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103
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104
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self.server_protocol.connection_lost('exc') |
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self.connection.close.assert_called() |
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expected_content = {'source': self.connection, 'exception': 'exc'} |
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expected_name = 'kytos/core.protocol.connection.lost' |
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mock_kytos_event.assert_called_with(content=expected_content, |
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name=expected_name) |
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buffers.conn.aput.assert_called_with(mock_kytos_event.return_value) |
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kytos-ng /
kytos
