"""Tests for selector_events.py""" import errno import socket import unittest from unittest import mock try: import ssl except ImportError: ssl = None import asyncio from asyncio import selectors from asyncio import test_utils from asyncio.selector_events import BaseSelectorEventLoop from asyncio.selector_events import _SelectorTransport from asyncio.selector_events import _SelectorSslTransport from asyncio.selector_events import _SelectorSocketTransport from asyncio.selector_events import _SelectorDatagramTransport MOCK_ANY = mock.ANY class TestBaseSelectorEventLoop(BaseSelectorEventLoop): def close(self): # Don't call the close() method of the parent class, because the # selector is mocked self._closed = True def _make_self_pipe(self): self._ssock = mock.Mock() self._csock = mock.Mock() self._internal_fds += 1 def list_to_buffer(l=()): return bytearray().join(l) def close_transport(transport): # Don't call transport.close() because the event loop and the selector # are mocked if transport._sock is None: return transport._sock.close() transport._sock = None class BaseSelectorEventLoopTests(test_utils.TestCase): def setUp(self): super().setUp() self.selector = mock.Mock() self.selector.select.return_value = [] self.loop = TestBaseSelectorEventLoop(self.selector) self.set_event_loop(self.loop) def test_make_socket_transport(self): m = mock.Mock() self.loop.add_reader = mock.Mock() self.loop.add_reader._is_coroutine = False transport = self.loop._make_socket_transport(m, asyncio.Protocol()) self.assertIsInstance(transport, _SelectorSocketTransport) # Calling repr() must not fail when the event loop is closed self.loop.close() repr(transport) close_transport(transport) @unittest.skipIf(ssl is None, 'No ssl module') def test_make_ssl_transport(self): m = mock.Mock() self.loop._add_reader = mock.Mock() self.loop._add_reader._is_coroutine = False self.loop._add_writer = mock.Mock() self.loop._remove_reader = mock.Mock() self.loop._remove_writer = mock.Mock() waiter = asyncio.Future(loop=self.loop) with test_utils.disable_logger(): transport = self.loop._make_ssl_transport( m, asyncio.Protocol(), m, waiter) # execute the handshake while the logger is disabled # to ignore SSL handshake failure test_utils.run_briefly(self.loop) # Sanity check class_name = transport.__class__.__name__ self.assertIn("ssl", class_name.lower()) self.assertIn("transport", class_name.lower()) transport.close() # execute pending callbacks to close the socket transport test_utils.run_briefly(self.loop) @mock.patch('asyncio.selector_events.ssl', None) @mock.patch('asyncio.sslproto.ssl', None) def test_make_ssl_transport_without_ssl_error(self): m = mock.Mock() self.loop.add_reader = mock.Mock() self.loop.add_writer = mock.Mock() self.loop.remove_reader = mock.Mock() self.loop.remove_writer = mock.Mock() with self.assertRaises(RuntimeError): self.loop._make_ssl_transport(m, m, m, m) def test_close(self): class EventLoop(BaseSelectorEventLoop): def _make_self_pipe(self): self._ssock = mock.Mock() self._csock = mock.Mock() self._internal_fds += 1 self.loop = EventLoop(self.selector) self.set_event_loop(self.loop) ssock = self.loop._ssock ssock.fileno.return_value = 7 csock = self.loop._csock csock.fileno.return_value = 1 remove_reader = self.loop._remove_reader = mock.Mock() self.loop._selector.close() self.loop._selector = selector = mock.Mock() self.assertFalse(self.loop.is_closed()) self.loop.close() self.assertTrue(self.loop.is_closed()) self.assertIsNone(self.loop._selector) self.assertIsNone(self.loop._csock) self.assertIsNone(self.loop._ssock) selector.close.assert_called_with() ssock.close.assert_called_with() csock.close.assert_called_with() remove_reader.assert_called_with(7) # it should be possible to call close() more than once self.loop.close() self.loop.close() # operation blocked when the loop is closed f = asyncio.Future(loop=self.loop) self.assertRaises(RuntimeError, self.loop.run_forever) self.assertRaises(RuntimeError, self.loop.run_until_complete, f) fd = 0 def callback(): pass self.assertRaises(RuntimeError, self.loop.add_reader, fd, callback) self.assertRaises(RuntimeError, self.loop.add_writer, fd, callback) def test_close_no_selector(self): self.loop.remove_reader = mock.Mock() self.loop._selector.close() self.loop._selector = None self.loop.close() self.assertIsNone(self.loop._selector) def test_socketpair(self): self.assertRaises(NotImplementedError, self.loop._socketpair) def test_read_from_self_tryagain(self): self.loop._ssock.recv.side_effect = BlockingIOError self.assertIsNone(self.loop._read_from_self()) def test_read_from_self_exception(self): self.loop._ssock.recv.side_effect = OSError self.assertRaises(OSError, self.loop._read_from_self) def test_write_to_self_tryagain(self): self.loop._csock.send.side_effect = BlockingIOError with test_utils.disable_logger(): self.assertIsNone(self.loop._write_to_self()) def test_write_to_self_exception(self): # _write_to_self() swallows OSError self.loop._csock.send.side_effect = RuntimeError() self.assertRaises(RuntimeError, self.loop._write_to_self) def test_sock_recv(self): sock = test_utils.mock_nonblocking_socket() self.loop._sock_recv = mock.Mock() f = self.loop.sock_recv(sock, 1024) self.assertIsInstance(f, asyncio.Future) self.loop._sock_recv.assert_called_with(f, False, sock, 1024) def test__sock_recv_canceled_fut(self): sock = mock.Mock() f = asyncio.Future(loop=self.loop) f.cancel() self.loop._sock_recv(f, False, sock, 1024) self.assertFalse(sock.recv.called) def test__sock_recv_unregister(self): sock = mock.Mock() sock.fileno.return_value = 10 f = asyncio.Future(loop=self.loop) f.cancel() self.loop.remove_reader = mock.Mock() self.loop._sock_recv(f, True, sock, 1024) self.assertEqual((10,), self.loop.remove_reader.call_args[0]) def test__sock_recv_tryagain(self): f = asyncio.Future(loop=self.loop) sock = mock.Mock() sock.fileno.return_value = 10 sock.recv.side_effect = BlockingIOError self.loop.add_reader = mock.Mock() self.loop._sock_recv(f, False, sock, 1024) self.assertEqual((10, self.loop._sock_recv, f, True, sock, 1024), self.loop.add_reader.call_args[0]) def test__sock_recv_exception(self): f = asyncio.Future(loop=self.loop) sock = mock.Mock() sock.fileno.return_value = 10 err = sock.recv.side_effect = OSError() self.loop._sock_recv(f, False, sock, 1024) self.assertIs(err, f.exception()) def test_sock_sendall(self): sock = test_utils.mock_nonblocking_socket() self.loop._sock_sendall = mock.Mock() f = self.loop.sock_sendall(sock, b'data') self.assertIsInstance(f, asyncio.Future) self.assertEqual( (f, False, sock, b'data'), self.loop._sock_sendall.call_args[0]) def test_sock_sendall_nodata(self): sock = test_utils.mock_nonblocking_socket() self.loop._sock_sendall = mock.Mock() f = self.loop.sock_sendall(sock, b'') self.assertIsInstance(f, asyncio.Future) self.assertTrue(f.done()) self.assertIsNone(f.result()) self.assertFalse(self.loop._sock_sendall.called) def test__sock_sendall_canceled_fut(self): sock = mock.Mock() f = asyncio.Future(loop=self.loop) f.cancel() self.loop._sock_sendall(f, False, sock, b'data') self.assertFalse(sock.send.called) def test__sock_sendall_unregister(self): sock = mock.Mock() sock.fileno.return_value = 10 f = asyncio.Future(loop=self.loop) f.cancel() self.loop.remove_writer = mock.Mock() self.loop._sock_sendall(f, True, sock, b'data') self.assertEqual((10,), self.loop.remove_writer.call_args[0]) def test__sock_sendall_tryagain(self): f = asyncio.Future(loop=self.loop) sock = mock.Mock() sock.fileno.return_value = 10 sock.send.side_effect = BlockingIOError self.loop.add_writer = mock.Mock() self.loop._sock_sendall(f, False, sock, b'data') self.assertEqual( (10, self.loop._sock_sendall, f, True, sock, b'data'), self.loop.add_writer.call_args[0]) def test__sock_sendall_interrupted(self): f = asyncio.Future(loop=self.loop) sock = mock.Mock() sock.fileno.return_value = 10 sock.send.side_effect = InterruptedError self.loop.add_writer = mock.Mock() self.loop._sock_sendall(f, False, sock, b'data') self.assertEqual( (10, self.loop._sock_sendall, f, True, sock, b'data'), self.loop.add_writer.call_args[0]) def test__sock_sendall_exception(self): f = asyncio.Future(loop=self.loop) sock = mock.Mock() sock.fileno.return_value = 10 err = sock.send.side_effect = OSError() self.loop._sock_sendall(f, False, sock, b'data') self.assertIs(f.exception(), err) def test__sock_sendall(self): sock = mock.Mock() f = asyncio.Future(loop=self.loop) sock.fileno.return_value = 10 sock.send.return_value = 4 self.loop._sock_sendall(f, False, sock, b'data') self.assertTrue(f.done()) self.assertIsNone(f.result()) def test__sock_sendall_partial(self): sock = mock.Mock() f = asyncio.Future(loop=self.loop) sock.fileno.return_value = 10 sock.send.return_value = 2 self.loop.add_writer = mock.Mock() self.loop._sock_sendall(f, False, sock, b'data') self.assertFalse(f.done()) self.assertEqual( (10, self.loop._sock_sendall, f, True, sock, b'ta'), self.loop.add_writer.call_args[0]) def test__sock_sendall_none(self): sock = mock.Mock() f = asyncio.Future(loop=self.loop) sock.fileno.return_value = 10 sock.send.return_value = 0 self.loop.add_writer = mock.Mock() self.loop._sock_sendall(f, False, sock, b'data') self.assertFalse(f.done()) self.assertEqual( (10, self.loop._sock_sendall, f, True, sock, b'data'), self.loop.add_writer.call_args[0]) def test_sock_connect_timeout(self): # asyncio issue #205: sock_connect() must unregister the socket on # timeout error # prepare mocks self.loop.add_writer = mock.Mock() self.loop.remove_writer = mock.Mock() sock = test_utils.mock_nonblocking_socket() sock.connect.side_effect = BlockingIOError # first call to sock_connect() registers the socket fut = self.loop.create_task( self.loop.sock_connect(sock, ('127.0.0.1', 80))) self.loop._run_once() self.assertTrue(sock.connect.called) self.assertTrue(self.loop.add_writer.called) # on timeout, the socket must be unregistered sock.connect.reset_mock() fut.cancel() with self.assertRaises(asyncio.CancelledError): self.loop.run_until_complete(fut) self.assertTrue(self.loop.remove_writer.called) @mock.patch('socket.getaddrinfo') def test_sock_connect_resolve_using_socket_params(self, m_gai): addr = ('need-resolution.com', 8080) sock = test_utils.mock_nonblocking_socket() m_gai.side_effect = (None, None, None, None, ('127.0.0.1', 0)) m_gai._is_coroutine = False con = self.loop.create_task(self.loop.sock_connect(sock, addr)) while not m_gai.called: self.loop._run_once() m_gai.assert_called_with( addr[0], addr[1], sock.family, sock.type, sock.proto, 0) con.cancel() with self.assertRaises(asyncio.CancelledError): self.loop.run_until_complete(con) def test__sock_connect(self): f = asyncio.Future(loop=self.loop) sock = mock.Mock() sock.fileno.return_value = 10 resolved = self.loop.create_future() resolved.set_result([(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP, '', ('127.0.0.1', 8080))]) self.loop._sock_connect(f, sock, resolved) self.assertTrue(f.done()) self.assertIsNone(f.result()) self.assertTrue(sock.connect.called) def test__sock_connect_cb_cancelled_fut(self): sock = mock.Mock() self.loop.remove_writer = mock.Mock() f = asyncio.Future(loop=self.loop) f.cancel() self.loop._sock_connect_cb(f, sock, ('127.0.0.1', 8080)) self.assertFalse(sock.getsockopt.called) def test__sock_connect_writer(self): # check that the fd is registered and then unregistered self.loop._process_events = mock.Mock() self.loop.add_writer = mock.Mock() self.loop.remove_writer = mock.Mock() sock = mock.Mock() sock.fileno.return_value = 10 sock.connect.side_effect = BlockingIOError sock.getsockopt.return_value = 0 address = ('127.0.0.1', 8080) resolved = self.loop.create_future() resolved.set_result([(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP, '', address)]) f = asyncio.Future(loop=self.loop) self.loop._sock_connect(f, sock, resolved) self.loop._run_once() self.assertTrue(self.loop.add_writer.called) self.assertEqual(10, self.loop.add_writer.call_args[0][0]) self.loop._sock_connect_cb(f, sock, address) # need to run the event loop to execute _sock_connect_done() callback self.loop.run_until_complete(f) self.assertEqual((10,), self.loop.remove_writer.call_args[0]) def test__sock_connect_cb_tryagain(self): f = asyncio.Future(loop=self.loop) sock = mock.Mock() sock.fileno.return_value = 10 sock.getsockopt.return_value = errno.EAGAIN # check that the exception is handled self.loop._sock_connect_cb(f, sock, ('127.0.0.1', 8080)) def test__sock_connect_cb_exception(self): f = asyncio.Future(loop=self.loop) sock = mock.Mock() sock.fileno.return_value = 10 sock.getsockopt.return_value = errno.ENOTCONN self.loop.remove_writer = mock.Mock() self.loop._sock_connect_cb(f, sock, ('127.0.0.1', 8080)) self.assertIsInstance(f.exception(), OSError) def test_sock_accept(self): sock = test_utils.mock_nonblocking_socket() self.loop._sock_accept = mock.Mock() f = self.loop.sock_accept(sock) self.assertIsInstance(f, asyncio.Future) self.assertEqual( (f, False, sock), self.loop._sock_accept.call_args[0]) def test__sock_accept(self): f = asyncio.Future(loop=self.loop) conn = mock.Mock() sock = mock.Mock() sock.fileno.return_value = 10 sock.accept.return_value = conn, ('127.0.0.1', 1000) self.loop._sock_accept(f, False, sock) self.assertTrue(f.done()) self.assertEqual((conn, ('127.0.0.1', 1000)), f.result()) self.assertEqual((False,), conn.setblocking.call_args[0]) def test__sock_accept_canceled_fut(self): sock = mock.Mock() f = asyncio.Future(loop=self.loop) f.cancel() self.loop._sock_accept(f, False, sock) self.assertFalse(sock.accept.called) def test__sock_accept_unregister(self): sock = mock.Mock() sock.fileno.return_value = 10 f = asyncio.Future(loop=self.loop) f.cancel() self.loop.remove_reader = mock.Mock() self.loop._sock_accept(f, True, sock) self.assertEqual((10,), self.loop.remove_reader.call_args[0]) def test__sock_accept_tryagain(self): f = asyncio.Future(loop=self.loop) sock = mock.Mock() sock.fileno.return_value = 10 sock.accept.side_effect = BlockingIOError self.loop.add_reader = mock.Mock() self.loop._sock_accept(f, False, sock) self.assertEqual( (10, self.loop._sock_accept, f, True, sock), self.loop.add_reader.call_args[0]) def test__sock_accept_exception(self): f = asyncio.Future(loop=self.loop) sock = mock.Mock() sock.fileno.return_value = 10 err = sock.accept.side_effect = OSError() self.loop._sock_accept(f, False, sock) self.assertIs(err, f.exception()) def test_add_reader(self): self.loop._selector.get_key.side_effect = KeyError cb = lambda: True self.loop.add_reader(1, cb) self.assertTrue(self.loop._selector.register.called) fd, mask, (r, w) = self.loop._selector.register.call_args[0] self.assertEqual(1, fd) self.assertEqual(selectors.EVENT_READ, mask) self.assertEqual(cb, r._callback) self.assertIsNone(w) def test_add_reader_existing(self): reader = mock.Mock() writer = mock.Mock() self.loop._selector.get_key.return_value = selectors.SelectorKey( 1, 1, selectors.EVENT_WRITE, (reader, writer)) cb = lambda: True self.loop.add_reader(1, cb) self.assertTrue(reader.cancel.called) self.assertFalse(self.loop._selector.register.called) self.assertTrue(self.loop._selector.modify.called) fd, mask, (r, w) = self.loop._selector.modify.call_args[0] self.assertEqual(1, fd) self.assertEqual(selectors.EVENT_WRITE | selectors.EVENT_READ, mask) self.assertEqual(cb, r._callback) self.assertEqual(writer, w) def test_add_reader_existing_writer(self): writer = mock.Mock() self.loop._selector.get_key.return_value = selectors.SelectorKey( 1, 1, selectors.EVENT_WRITE, (None, writer)) cb = lambda: True self.loop.add_reader(1, cb) self.assertFalse(self.loop._selector.register.called) self.assertTrue(self.loop._selector.modify.called) fd, mask, (r, w) = self.loop._selector.modify.call_args[0] self.assertEqual(1, fd) self.assertEqual(selectors.EVENT_WRITE | selectors.EVENT_READ, mask) self.assertEqual(cb, r._callback) self.assertEqual(writer, w) def test_remove_reader(self): self.loop._selector.get_key.return_value = selectors.SelectorKey( 1, 1, selectors.EVENT_READ, (None, None)) self.assertFalse(self.loop.remove_reader(1)) self.assertTrue(self.loop._selector.unregister.called) def test_remove_reader_read_write(self): reader = mock.Mock() writer = mock.Mock() self.loop._selector.get_key.return_value = selectors.SelectorKey( 1, 1, selectors.EVENT_READ | selectors.EVENT_WRITE, (reader, writer)) self.assertTrue( self.loop.remove_reader(1)) self.assertFalse(self.loop._selector.unregister.called) self.assertEqual( (1, selectors.EVENT_WRITE, (None, writer)), self.loop._selector.modify.call_args[0]) def test_remove_reader_unknown(self): self.loop._selector.get_key.side_effect = KeyError self.assertFalse( self.loop.remove_reader(1)) def test_add_writer(self): self.loop._selector.get_key.side_effect = KeyError cb = lambda: True self.loop.add_writer(1, cb) self.assertTrue(self.loop._selector.register.called) fd, mask, (r, w) = self.loop._selector.register.call_args[0] self.assertEqual(1, fd) self.assertEqual(selectors.EVENT_WRITE, mask) self.assertIsNone(r) self.assertEqual(cb, w._callback) def test_add_writer_existing(self): reader = mock.Mock() writer = mock.Mock() self.loop._selector.get_key.return_value = selectors.SelectorKey( 1, 1, selectors.EVENT_READ, (reader, writer)) cb = lambda: True self.loop.add_writer(1, cb) self.assertTrue(writer.cancel.called) self.assertFalse(self.loop._selector.register.called) self.assertTrue(self.loop._selector.modify.called) fd, mask, (r, w) = self.loop._selector.modify.call_args[0] self.assertEqual(1, fd) self.assertEqual(selectors.EVENT_WRITE | selectors.EVENT_READ, mask) self.assertEqual(reader, r) self.assertEqual(cb, w._callback) def test_remove_writer(self): self.loop._selector.get_key.return_value = selectors.SelectorKey( 1, 1, selectors.EVENT_WRITE, (None, None)) self.assertFalse(self.loop.remove_writer(1)) self.assertTrue(self.loop._selector.unregister.called) def test_remove_writer_read_write(self): reader = mock.Mock() writer = mock.Mock() self.loop._selector.get_key.return_value = selectors.SelectorKey( 1, 1, selectors.EVENT_READ | selectors.EVENT_WRITE, (reader, writer)) self.assertTrue( self.loop.remove_writer(1)) self.assertFalse(self.loop._selector.unregister.called) self.assertEqual( (1, selectors.EVENT_READ, (reader, None)), self.loop._selector.modify.call_args[0]) def test_remove_writer_unknown(self): self.loop._selector.get_key.side_effect = KeyError self.assertFalse( self.loop.remove_writer(1)) def test_process_events_read(self): reader = mock.Mock() reader._cancelled = False self.loop._add_callback = mock.Mock() self.loop._process_events( [(selectors.SelectorKey( 1, 1, selectors.EVENT_READ, (reader, None)), selectors.EVENT_READ)]) self.assertTrue(self.loop._add_callback.called) self.loop._add_callback.assert_called_with(reader) def test_process_events_read_cancelled(self): reader = mock.Mock() reader.cancelled = True self.loop._remove_reader = mock.Mock() self.loop._process_events( [(selectors.SelectorKey( 1, 1, selectors.EVENT_READ, (reader, None)), selectors.EVENT_READ)]) self.loop._remove_reader.assert_called_with(1) def test_process_events_write(self): writer = mock.Mock() writer._cancelled = False self.loop._add_callback = mock.Mock() self.loop._process_events( [(selectors.SelectorKey(1, 1, selectors.EVENT_WRITE, (None, writer)), selectors.EVENT_WRITE)]) self.loop._add_callback.assert_called_with(writer) def test_process_events_write_cancelled(self): writer = mock.Mock() writer.cancelled = True self.loop._remove_writer = mock.Mock() self.loop._process_events( [(selectors.SelectorKey(1, 1, selectors.EVENT_WRITE, (None, writer)), selectors.EVENT_WRITE)]) self.loop._remove_writer.assert_called_with(1) def test_accept_connection_multiple(self): sock = mock.Mock() sock.accept.return_value = (mock.Mock(), mock.Mock()) backlog = 100 # Mock the coroutine generation for a connection to prevent # warnings related to un-awaited coroutines. mock_obj = mock.patch.object with mock_obj(self.loop, '_accept_connection2') as accept2_mock: accept2_mock.return_value = None with mock_obj(self.loop, 'create_task') as task_mock: task_mock.return_value = None self.loop._accept_connection(mock.Mock(), sock, backlog=backlog) self.assertEqual(sock.accept.call_count, backlog) class SelectorTransportTests(test_utils.TestCase): def setUp(self): super().setUp() self.loop = self.new_test_loop() self.protocol = test_utils.make_test_protocol(asyncio.Protocol) self.sock = mock.Mock(socket.socket) self.sock.fileno.return_value = 7 def create_transport(self): transport = _SelectorTransport(self.loop, self.sock, self.protocol, None) self.addCleanup(close_transport, transport) return transport def test_ctor(self): tr = self.create_transport() self.assertIs(tr._loop, self.loop) self.assertIs(tr._sock, self.sock) self.assertIs(tr._sock_fd, 7) def test_abort(self): tr = self.create_transport() tr._force_close = mock.Mock() tr.abort() tr._force_close.assert_called_with(None) def test_close(self): tr = self.create_transport() tr.close() self.assertTrue(tr.is_closing()) self.assertEqual(1, self.loop.remove_reader_count[7]) self.protocol.connection_lost(None) self.assertEqual(tr._conn_lost, 1) tr.close() self.assertEqual(tr._conn_lost, 1) self.assertEqual(1, self.loop.remove_reader_count[7]) def test_close_write_buffer(self): tr = self.create_transport() tr._buffer.extend(b'data') tr.close() self.assertFalse(self.loop.readers) test_utils.run_briefly(self.loop) self.assertFalse(self.protocol.connection_lost.called) def test_force_close(self): tr = self.create_transport() tr._buffer.extend(b'1') self.loop._add_reader(7, mock.sentinel) self.loop._add_writer(7, mock.sentinel) tr._force_close(None) self.assertTrue(tr.is_closing()) self.assertEqual(tr._buffer, list_to_buffer()) self.assertFalse(self.loop.readers) self.assertFalse(self.loop.writers) # second close should not remove reader tr._force_close(None) self.assertFalse(self.loop.readers) self.assertEqual(1, self.loop.remove_reader_count[7]) @mock.patch('asyncio.log.logger.error') def test_fatal_error(self, m_exc): exc = OSError() tr = self.create_transport() tr._force_close = mock.Mock() tr._fatal_error(exc) m_exc.assert_called_with( test_utils.MockPattern( 'Fatal error on transport\nprotocol:.*\ntransport:.*'), exc_info=(OSError, MOCK_ANY, MOCK_ANY)) tr._force_close.assert_called_with(exc) def test_connection_lost(self): exc = OSError() tr = self.create_transport() self.assertIsNotNone(tr._protocol) self.assertIsNotNone(tr._loop) tr._call_connection_lost(exc) self.protocol.connection_lost.assert_called_with(exc) self.sock.close.assert_called_with() self.assertIsNone(tr._sock) self.assertIsNone(tr._protocol) self.assertIsNone(tr._loop) class SelectorSocketTransportTests(test_utils.TestCase): def setUp(self): super().setUp() self.loop = self.new_test_loop() self.protocol = test_utils.make_test_protocol(asyncio.Protocol) self.sock = mock.Mock(socket.socket) self.sock_fd = self.sock.fileno.return_value = 7 def socket_transport(self, waiter=None): transport = _SelectorSocketTransport(self.loop, self.sock, self.protocol, waiter=waiter) self.addCleanup(close_transport, transport) return transport def test_ctor(self): waiter = asyncio.Future(loop=self.loop) tr = self.socket_transport(waiter=waiter) self.loop.run_until_complete(waiter) self.loop.assert_reader(7, tr._read_ready) test_utils.run_briefly(self.loop) self.protocol.connection_made.assert_called_with(tr) def test_ctor_with_waiter(self): waiter = asyncio.Future(loop=self.loop) self.socket_transport(waiter=waiter) self.loop.run_until_complete(waiter) self.assertIsNone(waiter.result()) def test_pause_resume_reading(self): tr = self.socket_transport() test_utils.run_briefly(self.loop) self.assertFalse(tr._paused) self.loop.assert_reader(7, tr._read_ready) tr.pause_reading() self.assertTrue(tr._paused) self.assertFalse(7 in self.loop.readers) tr.resume_reading() self.assertFalse(tr._paused) self.loop.assert_reader(7, tr._read_ready) with self.assertRaises(RuntimeError): tr.resume_reading() def test_read_ready(self): transport = self.socket_transport() self.sock.recv.return_value = b'data' transport._read_ready() self.protocol.data_received.assert_called_with(b'data') def test_read_ready_eof(self): transport = self.socket_transport() transport.close = mock.Mock() self.sock.recv.return_value = b'' transport._read_ready() self.protocol.eof_received.assert_called_with() transport.close.assert_called_with() def test_read_ready_eof_keep_open(self): transport = self.socket_transport() transport.close = mock.Mock() self.sock.recv.return_value = b'' self.protocol.eof_received.return_value = True transport._read_ready() self.protocol.eof_received.assert_called_with() self.assertFalse(transport.close.called) @mock.patch('logging.exception') def test_read_ready_tryagain(self, m_exc): self.sock.recv.side_effect = BlockingIOError transport = self.socket_transport() transport._fatal_error = mock.Mock() transport._read_ready() self.assertFalse(transport._fatal_error.called) @mock.patch('logging.exception') def test_read_ready_tryagain_interrupted(self, m_exc): self.sock.recv.side_effect = InterruptedError transport = self.socket_transport() transport._fatal_error = mock.Mock() transport._read_ready() self.assertFalse(transport._fatal_error.called) @mock.patch('logging.exception') def test_read_ready_conn_reset(self, m_exc): err = self.sock.recv.side_effect = ConnectionResetError() transport = self.socket_transport() transport._force_close = mock.Mock() with test_utils.disable_logger(): transport._read_ready() transport._force_close.assert_called_with(err) @mock.patch('logging.exception') def test_read_ready_err(self, m_exc): err = self.sock.recv.side_effect = OSError() transport = self.socket_transport() transport._fatal_error = mock.Mock() transport._read_ready() transport._fatal_error.assert_called_with( err, 'Fatal read error on socket transport') def test_write(self): data = b'data' self.sock.send.return_value = len(data) transport = self.socket_transport() transport.write(data) self.sock.send.assert_called_with(data) def test_write_bytearray(self): data = bytearray(b'data') self.sock.send.return_value = len(data) transport = self.socket_transport() transport.write(data) self.sock.send.assert_called_with(data) self.assertEqual(data, bytearray(b'data')) # Hasn't been mutated. def test_write_memoryview(self): data = memoryview(b'data') self.sock.send.return_value = len(data) transport = self.socket_transport() transport.write(data) self.sock.send.assert_called_with(data) def test_write_no_data(self): transport = self.socket_transport() transport._buffer.extend(b'data') transport.write(b'') self.assertFalse(self.sock.send.called) self.assertEqual(list_to_buffer([b'data']), transport._buffer) def test_write_buffer(self): transport = self.socket_transport() transport._buffer.extend(b'data1') transport.write(b'data2') self.assertFalse(self.sock.send.called) self.assertEqual(list_to_buffer([b'data1', b'data2']), transport._buffer) def test_write_partial(self): data = b'data' self.sock.send.return_value = 2 transport = self.socket_transport() transport.write(data) self.loop.assert_writer(7, transport._write_ready) self.assertEqual(list_to_buffer([b'ta']), transport._buffer) def test_write_partial_bytearray(self): data = bytearray(b'data') self.sock.send.return_value = 2 transport = self.socket_transport() transport.write(data) self.loop.assert_writer(7, transport._write_ready) self.assertEqual(list_to_buffer([b'ta']), transport._buffer) self.assertEqual(data, bytearray(b'data')) # Hasn't been mutated. def test_write_partial_memoryview(self): data = memoryview(b'data') self.sock.send.return_value = 2 transport = self.socket_transport() transport.write(data) self.loop.assert_writer(7, transport._write_ready) self.assertEqual(list_to_buffer([b'ta']), transport._buffer) def test_write_partial_none(self): data = b'data' self.sock.send.return_value = 0 self.sock.fileno.return_value = 7 transport = self.socket_transport() transport.write(data) self.loop.assert_writer(7, transport._write_ready) self.assertEqual(list_to_buffer([b'data']), transport._buffer) def test_write_tryagain(self): self.sock.send.side_effect = BlockingIOError data = b'data' transport = self.socket_transport() transport.write(data) self.loop.assert_writer(7, transport._write_ready) self.assertEqual(list_to_buffer([b'data']), transport._buffer) @mock.patch('asyncio.selector_events.logger') def test_write_exception(self, m_log): err = self.sock.send.side_effect = OSError() data = b'data' transport = self.socket_transport() transport._fatal_error = mock.Mock() transport.write(data) transport._fatal_error.assert_called_with( err, 'Fatal write error on socket transport') transport._conn_lost = 1 self.sock.reset_mock() transport.write(data) self.assertFalse(self.sock.send.called) self.assertEqual(transport._conn_lost, 2) transport.write(data) transport.write(data) transport.write(data) transport.write(data) m_log.warning.assert_called_with('socket.send() raised exception.') def test_write_str(self): transport = self.socket_transport() self.assertRaises(TypeError, transport.write, 'str') def test_write_closing(self): transport = self.socket_transport() transport.close() self.assertEqual(transport._conn_lost, 1) transport.write(b'data') self.assertEqual(transport._conn_lost, 2) def test_write_ready(self): data = b'data' self.sock.send.return_value = len(data) transport = self.socket_transport() transport._buffer.extend(data) self.loop._add_writer(7, transport._write_ready) transport._write_ready() self.assertTrue(self.sock.send.called) self.assertFalse(self.loop.writers) def test_write_ready_closing(self): data = b'data' self.sock.send.return_value = len(data) transport = self.socket_transport() transport._closing = True transport._buffer.extend(data) self.loop._add_writer(7, transport._write_ready) transport._write_ready() self.assertTrue(self.sock.send.called) self.assertFalse(self.loop.writers) self.sock.close.assert_called_with() self.protocol.connection_lost.assert_called_with(None) def test_write_ready_no_data(self): transport = self.socket_transport() # This is an internal error. self.assertRaises(AssertionError, transport._write_ready) def test_write_ready_partial(self): data = b'data' self.sock.send.return_value = 2 transport = self.socket_transport() transport._buffer.extend(data) self.loop._add_writer(7, transport._write_ready) transport._write_ready() self.loop.assert_writer(7, transport._write_ready) self.assertEqual(list_to_buffer([b'ta']), transport._buffer) def test_write_ready_partial_none(self): data = b'data' self.sock.send.return_value = 0 transport = self.socket_transport() transport._buffer.extend(data) self.loop._add_writer(7, transport._write_ready) transport._write_ready() self.loop.assert_writer(7, transport._write_ready) self.assertEqual(list_to_buffer([b'data']), transport._buffer) def test_write_ready_tryagain(self): self.sock.send.side_effect = BlockingIOError transport = self.socket_transport() transport._buffer = list_to_buffer([b'data1', b'data2']) self.loop._add_writer(7, transport._write_ready) transport._write_ready() self.loop.assert_writer(7, transport._write_ready) self.assertEqual(list_to_buffer([b'data1data2']), transport._buffer) def test_write_ready_exception(self): err = self.sock.send.side_effect = OSError() transport = self.socket_transport() transport._fatal_error = mock.Mock() transport._buffer.extend(b'data') transport._write_ready() transport._fatal_error.assert_called_with( err, 'Fatal write error on socket transport') def test_write_eof(self): tr = self.socket_transport() self.assertTrue(tr.can_write_eof()) tr.write_eof() self.sock.shutdown.assert_called_with(socket.SHUT_WR) tr.write_eof() self.assertEqual(self.sock.shutdown.call_count, 1) tr.close() def test_write_eof_buffer(self): tr = self.socket_transport() self.sock.send.side_effect = BlockingIOError tr.write(b'data') tr.write_eof() self.assertEqual(tr._buffer, list_to_buffer([b'data'])) self.assertTrue(tr._eof) self.assertFalse(self.sock.shutdown.called) self.sock.send.side_effect = lambda _: 4 tr._write_ready() self.assertTrue(self.sock.send.called) self.sock.shutdown.assert_called_with(socket.SHUT_WR) tr.close() @mock.patch('asyncio.base_events.logger') def test_transport_close_remove_writer(self, m_log): remove_writer = self.loop._remove_writer = mock.Mock() transport = self.socket_transport() transport.close() remove_writer.assert_called_with(self.sock_fd) @unittest.skipIf(ssl is None, 'No ssl module') class SelectorSslTransportTests(test_utils.TestCase): def setUp(self): super().setUp() self.loop = self.new_test_loop() self.protocol = test_utils.make_test_protocol(asyncio.Protocol) self.sock = mock.Mock(socket.socket) self.sock.fileno.return_value = 7 self.sslsock = mock.Mock() self.sslsock.fileno.return_value = 1 self.sslcontext = mock.Mock() self.sslcontext.wrap_socket.return_value = self.sslsock def ssl_transport(self, waiter=None, server_hostname=None): transport = _SelectorSslTransport(self.loop, self.sock, self.protocol, self.sslcontext, waiter=waiter, server_hostname=server_hostname) self.addCleanup(close_transport, transport) return transport def _make_one(self, create_waiter=None): transport = self.ssl_transport() self.sock.reset_mock() self.sslsock.reset_mock() self.sslcontext.reset_mock() self.loop.reset_counters() return transport def test_on_handshake(self): waiter = asyncio.Future(loop=self.loop) tr = self.ssl_transport(waiter=waiter) self.assertTrue(self.sslsock.do_handshake.called) self.loop.assert_reader(1, tr._read_ready) test_utils.run_briefly(self.loop) self.assertIsNone(waiter.result()) def test_on_handshake_reader_retry(self): self.loop.set_debug(False) self.sslsock.do_handshake.side_effect = ssl.SSLWantReadError transport = self.ssl_transport() self.loop.assert_reader(1, transport._on_handshake, None) def test_on_handshake_writer_retry(self): self.loop.set_debug(False) self.sslsock.do_handshake.side_effect = ssl.SSLWantWriteError transport = self.ssl_transport() self.loop.assert_writer(1, transport._on_handshake, None) def test_on_handshake_exc(self): exc = ValueError() self.sslsock.do_handshake.side_effect = exc with test_utils.disable_logger(): waiter = asyncio.Future(loop=self.loop) self.ssl_transport(waiter=waiter) self.assertTrue(waiter.done()) self.assertIs(exc, waiter.exception()) self.assertTrue(self.sslsock.close.called) def test_on_handshake_base_exc(self): waiter = asyncio.Future(loop=self.loop) transport = self.ssl_transport(waiter=waiter) exc = BaseException() self.sslsock.do_handshake.side_effect = exc with test_utils.disable_logger(): self.assertRaises(BaseException, transport._on_handshake, 0) self.assertTrue(self.sslsock.close.called) self.assertTrue(waiter.done()) self.assertIs(exc, waiter.exception()) def test_cancel_handshake(self): # Python issue #23197: cancelling a handshake must not raise an # exception or log an error, even if the handshake failed waiter = asyncio.Future(loop=self.loop) transport = self.ssl_transport(waiter=waiter) waiter.cancel() exc = ValueError() self.sslsock.do_handshake.side_effect = exc with test_utils.disable_logger(): transport._on_handshake(0) transport.close() test_utils.run_briefly(self.loop) def test_pause_resume_reading(self): tr = self._make_one() self.assertFalse(tr._paused) self.loop.assert_reader(1, tr._read_ready) tr.pause_reading() self.assertTrue(tr._paused) self.assertFalse(1 in self.loop.readers) tr.resume_reading() self.assertFalse(tr._paused) self.loop.assert_reader(1, tr._read_ready) with self.assertRaises(RuntimeError): tr.resume_reading() def test_write(self): transport = self._make_one() transport.write(b'data') self.assertEqual(list_to_buffer([b'data']), transport._buffer) def test_write_bytearray(self): transport = self._make_one() data = bytearray(b'data') transport.write(data) self.assertEqual(list_to_buffer([b'data']), transport._buffer) self.assertEqual(data, bytearray(b'data')) # Hasn't been mutated. self.assertIsNot(data, transport._buffer) # Hasn't been incorporated. def test_write_memoryview(self): transport = self._make_one() data = memoryview(b'data') transport.write(data) self.assertEqual(list_to_buffer([b'data']), transport._buffer) def test_write_no_data(self): transport = self._make_one() transport._buffer.extend(b'data') transport.write(b'') self.assertEqual(list_to_buffer([b'data']), transport._buffer) def test_write_str(self): transport = self._make_one() self.assertRaises(TypeError, transport.write, 'str') def test_write_closing(self): transport = self._make_one() transport.close() self.assertEqual(transport._conn_lost, 1) transport.write(b'data') self.assertEqual(transport._conn_lost, 2) @mock.patch('asyncio.selector_events.logger') def test_write_exception(self, m_log): transport = self._make_one() transport._conn_lost = 1 transport.write(b'data') self.assertEqual(transport._buffer, list_to_buffer()) transport.write(b'data') transport.write(b'data') transport.write(b'data') transport.write(b'data') m_log.warning.assert_called_with('socket.send() raised exception.') def test_read_ready_recv(self): self.sslsock.recv.return_value = b'data' transport = self._make_one() transport._read_ready() self.assertTrue(self.sslsock.recv.called) self.assertEqual((b'data',), self.protocol.data_received.call_args[0]) def test_read_ready_write_wants_read(self): self.loop._add_writer = mock.Mock() self.sslsock.recv.side_effect = BlockingIOError transport = self._make_one() transport._write_wants_read = True transport._write_ready = mock.Mock() transport._buffer.extend(b'data') transport._read_ready() self.assertFalse(transport._write_wants_read) transport._write_ready.assert_called_with() self.loop._add_writer.assert_called_with( transport._sock_fd, transport._write_ready) def test_read_ready_recv_eof(self): self.sslsock.recv.return_value = b'' transport = self._make_one() transport.close = mock.Mock() transport._read_ready() transport.close.assert_called_with() self.protocol.eof_received.assert_called_with() def test_read_ready_recv_conn_reset(self): err = self.sslsock.recv.side_effect = ConnectionResetError() transport = self._make_one() transport._force_close = mock.Mock() with test_utils.disable_logger(): transport._read_ready() transport._force_close.assert_called_with(err) def test_read_ready_recv_retry(self): self.sslsock.recv.side_effect = ssl.SSLWantReadError transport = self._make_one() transport._read_ready() self.assertTrue(self.sslsock.recv.called) self.assertFalse(self.protocol.data_received.called) self.sslsock.recv.side_effect = BlockingIOError transport._read_ready() self.assertFalse(self.protocol.data_received.called) self.sslsock.recv.side_effect = InterruptedError transport._read_ready() self.assertFalse(self.protocol.data_received.called) def test_read_ready_recv_write(self): self.loop._remove_reader = mock.Mock() self.loop._add_writer = mock.Mock() self.sslsock.recv.side_effect = ssl.SSLWantWriteError transport = self._make_one() transport._read_ready() self.assertFalse(self.protocol.data_received.called) self.assertTrue(transport._read_wants_write) self.loop._remove_reader.assert_called_with(transport._sock_fd) self.loop._add_writer.assert_called_with( transport._sock_fd, transport._write_ready) def test_read_ready_recv_exc(self): err = self.sslsock.recv.side_effect = OSError() transport = self._make_one() transport._fatal_error = mock.Mock() transport._read_ready() transport._fatal_error.assert_called_with( err, 'Fatal read error on SSL transport') def test_write_ready_send(self): self.sslsock.send.return_value = 4 transport = self._make_one() transport._buffer = list_to_buffer([b'data']) transport._write_ready() self.assertEqual(list_to_buffer(), transport._buffer) self.assertTrue(self.sslsock.send.called) def test_write_ready_send_none(self): self.sslsock.send.return_value = 0 transport = self._make_one() transport._buffer = list_to_buffer([b'data1', b'data2']) transport._write_ready() self.assertTrue(self.sslsock.send.called) self.assertEqual(list_to_buffer([b'data1data2']), transport._buffer) def test_write_ready_send_partial(self): self.sslsock.send.return_value = 2 transport = self._make_one() transport._buffer = list_to_buffer([b'data1', b'data2']) transport._write_ready() self.assertTrue(self.sslsock.send.called) self.assertEqual(list_to_buffer([b'ta1data2']), transport._buffer) def test_write_ready_send_closing_partial(self): self.sslsock.send.return_value = 2 transport = self._make_one() transport._buffer = list_to_buffer([b'data1', b'data2']) transport._write_ready() self.assertTrue(self.sslsock.send.called) self.assertFalse(self.sslsock.close.called) def test_write_ready_send_closing(self): self.sslsock.send.return_value = 4 transport = self._make_one() transport._buffer = list_to_buffer([b'data']) transport.close() transport._write_ready() self.protocol.connection_lost.assert_called_with(None) def test_write_ready_send_closing_empty_buffer(self): self.sslsock.send.return_value = 4 call_soon = self.loop.call_soon = mock.Mock() transport = self._make_one() transport._buffer = list_to_buffer() transport.close() transport._write_ready() call_soon.assert_called_with(transport._call_connection_lost, None) def test_write_ready_send_retry(self): transport = self._make_one() transport._buffer = list_to_buffer([b'data']) self.sslsock.send.side_effect = ssl.SSLWantWriteError transport._write_ready() self.assertEqual(list_to_buffer([b'data']), transport._buffer) self.sslsock.send.side_effect = BlockingIOError() transport._write_ready() self.assertEqual(list_to_buffer([b'data']), transport._buffer) def test_write_ready_send_read(self): transport = self._make_one() transport._buffer = list_to_buffer([b'data']) self.loop._remove_writer = mock.Mock() self.sslsock.send.side_effect = ssl.SSLWantReadError transport._write_ready() self.assertFalse(self.protocol.data_received.called) self.assertTrue(transport._write_wants_read) self.loop._remove_writer.assert_called_with(transport._sock_fd) def test_write_ready_send_exc(self): err = self.sslsock.send.side_effect = OSError() transport = self._make_one() transport._buffer = list_to_buffer([b'data']) transport._fatal_error = mock.Mock() transport._write_ready() transport._fatal_error.assert_called_with( err, 'Fatal write error on SSL transport') self.assertEqual(list_to_buffer(), transport._buffer) def test_write_ready_read_wants_write(self): self.loop._add_reader = mock.Mock() self.sslsock.send.side_effect = BlockingIOError transport = self._make_one() transport._read_wants_write = True transport._read_ready = mock.Mock() transport._write_ready() self.assertFalse(transport._read_wants_write) transport._read_ready.assert_called_with() self.loop._add_reader.assert_called_with( transport._sock_fd, transport._read_ready) def test_write_eof(self): tr = self._make_one() self.assertFalse(tr.can_write_eof()) self.assertRaises(NotImplementedError, tr.write_eof) def check_close(self): tr = self._make_one() tr.close() self.assertTrue(tr.is_closing()) self.assertEqual(1, self.loop.remove_reader_count[1]) self.assertEqual(tr._conn_lost, 1) tr.close() self.assertEqual(tr._conn_lost, 1) self.assertEqual(1, self.loop.remove_reader_count[1]) test_utils.run_briefly(self.loop) def test_close(self): self.check_close() self.assertTrue(self.protocol.connection_made.called) self.assertTrue(self.protocol.connection_lost.called) def test_close_not_connected(self): self.sslsock.do_handshake.side_effect = ssl.SSLWantReadError self.check_close() self.assertFalse(self.protocol.connection_made.called) self.assertFalse(self.protocol.connection_lost.called) @unittest.skipIf(ssl is None, 'No SSL support') def test_server_hostname(self): self.ssl_transport(server_hostname='localhost') self.sslcontext.wrap_socket.assert_called_with( self.sock, do_handshake_on_connect=False, server_side=False, server_hostname='localhost') class SelectorSslWithoutSslTransportTests(unittest.TestCase): @mock.patch('asyncio.selector_events.ssl', None) def test_ssl_transport_requires_ssl_module(self): Mock = mock.Mock with self.assertRaises(RuntimeError): _SelectorSslTransport(Mock(), Mock(), Mock(), Mock()) class SelectorDatagramTransportTests(test_utils.TestCase): def setUp(self): super().setUp() self.loop = self.new_test_loop() self.protocol = test_utils.make_test_protocol(asyncio.DatagramProtocol) self.sock = mock.Mock(spec_set=socket.socket) self.sock.fileno.return_value = 7 def datagram_transport(self, address=None): transport = _SelectorDatagramTransport(self.loop, self.sock, self.protocol, address=address) self.addCleanup(close_transport, transport) return transport def test_read_ready(self): transport = self.datagram_transport() self.sock.recvfrom.return_value = (b'data', ('0.0.0.0', 1234)) transport._read_ready() self.protocol.datagram_received.assert_called_with( b'data', ('0.0.0.0', 1234)) def test_read_ready_tryagain(self): transport = self.datagram_transport() self.sock.recvfrom.side_effect = BlockingIOError transport._fatal_error = mock.Mock() transport._read_ready() self.assertFalse(transport._fatal_error.called) def test_read_ready_err(self): transport = self.datagram_transport() err = self.sock.recvfrom.side_effect = RuntimeError() transport._fatal_error = mock.Mock() transport._read_ready() transport._fatal_error.assert_called_with( err, 'Fatal read error on datagram transport') def test_read_ready_oserr(self): transport = self.datagram_transport() err = self.sock.recvfrom.side_effect = OSError() transport._fatal_error = mock.Mock() transport._read_ready() self.assertFalse(transport._fatal_error.called) self.protocol.error_received.assert_called_with(err) def test_sendto(self): data = b'data' transport = self.datagram_transport() transport.sendto(data, ('0.0.0.0', 1234)) self.assertTrue(self.sock.sendto.called) self.assertEqual( self.sock.sendto.call_args[0], (data, ('0.0.0.0', 1234))) def test_sendto_bytearray(self): data = bytearray(b'data') transport = self.datagram_transport() transport.sendto(data, ('0.0.0.0', 1234)) self.assertTrue(self.sock.sendto.called) self.assertEqual( self.sock.sendto.call_args[0], (data, ('0.0.0.0', 1234))) def test_sendto_memoryview(self): data = memoryview(b'data') transport = self.datagram_transport() transport.sendto(data, ('0.0.0.0', 1234)) self.assertTrue(self.sock.sendto.called) self.assertEqual( self.sock.sendto.call_args[0], (data, ('0.0.0.0', 1234))) def test_sendto_no_data(self): transport = self.datagram_transport() transport._buffer.append((b'data', ('0.0.0.0', 12345))) transport.sendto(b'', ()) self.assertFalse(self.sock.sendto.called) self.assertEqual( [(b'data', ('0.0.0.0', 12345))], list(transport._buffer)) def test_sendto_buffer(self): transport = self.datagram_transport() transport._buffer.append((b'data1', ('0.0.0.0', 12345))) transport.sendto(b'data2', ('0.0.0.0', 12345)) self.assertFalse(self.sock.sendto.called) self.assertEqual( [(b'data1', ('0.0.0.0', 12345)), (b'data2', ('0.0.0.0', 12345))], list(transport._buffer)) def test_sendto_buffer_bytearray(self): data2 = bytearray(b'data2') transport = self.datagram_transport() transport._buffer.append((b'data1', ('0.0.0.0', 12345))) transport.sendto(data2, ('0.0.0.0', 12345)) self.assertFalse(self.sock.sendto.called) self.assertEqual( [(b'data1', ('0.0.0.0', 12345)), (b'data2', ('0.0.0.0', 12345))], list(transport._buffer)) self.assertIsInstance(transport._buffer[1][0], bytes) def test_sendto_buffer_memoryview(self): data2 = memoryview(b'data2') transport = self.datagram_transport() transport._buffer.append((b'data1', ('0.0.0.0', 12345))) transport.sendto(data2, ('0.0.0.0', 12345)) self.assertFalse(self.sock.sendto.called) self.assertEqual( [(b'data1', ('0.0.0.0', 12345)), (b'data2', ('0.0.0.0', 12345))], list(transport._buffer)) self.assertIsInstance(transport._buffer[1][0], bytes) def test_sendto_tryagain(self): data = b'data' self.sock.sendto.side_effect = BlockingIOError transport = self.datagram_transport() transport.sendto(data, ('0.0.0.0', 12345)) self.loop.assert_writer(7, transport._sendto_ready) self.assertEqual( [(b'data', ('0.0.0.0', 12345))], list(transport._buffer)) @mock.patch('asyncio.selector_events.logger') def test_sendto_exception(self, m_log): data = b'data' err = self.sock.sendto.side_effect = RuntimeError() transport = self.datagram_transport() transport._fatal_error = mock.Mock() transport.sendto(data, ()) self.assertTrue(transport._fatal_error.called) transport._fatal_error.assert_called_with( err, 'Fatal write error on datagram transport') transport._conn_lost = 1 transport._address = ('123',) transport.sendto(data) transport.sendto(data) transport.sendto(data) transport.sendto(data) transport.sendto(data) m_log.warning.assert_called_with('socket.send() raised exception.') def test_sendto_error_received(self): data = b'data' self.sock.sendto.side_effect = ConnectionRefusedError transport = self.datagram_transport() transport._fatal_error = mock.Mock() transport.sendto(data, ()) self.assertEqual(transport._conn_lost, 0) self.assertFalse(transport._fatal_error.called) def test_sendto_error_received_connected(self): data = b'data' self.sock.send.side_effect = ConnectionRefusedError transport = self.datagram_transport(address=('0.0.0.0', 1)) transport._fatal_error = mock.Mock() transport.sendto(data) self.assertFalse(transport._fatal_error.called) self.assertTrue(self.protocol.error_received.called) def test_sendto_str(self): transport = self.datagram_transport() self.assertRaises(TypeError, transport.sendto, 'str', ()) def test_sendto_connected_addr(self): transport = self.datagram_transport(address=('0.0.0.0', 1)) self.assertRaises( ValueError, transport.sendto, b'str', ('0.0.0.0', 2)) def test_sendto_closing(self): transport = self.datagram_transport(address=(1,)) transport.close() self.assertEqual(transport._conn_lost, 1) transport.sendto(b'data', (1,)) self.assertEqual(transport._conn_lost, 2) def test_sendto_ready(self): data = b'data' self.sock.sendto.return_value = len(data) transport = self.datagram_transport() transport._buffer.append((data, ('0.0.0.0', 12345))) self.loop._add_writer(7, transport._sendto_ready) transport._sendto_ready() self.assertTrue(self.sock.sendto.called) self.assertEqual( self.sock.sendto.call_args[0], (data, ('0.0.0.0', 12345))) self.assertFalse(self.loop.writers) def test_sendto_ready_closing(self): data = b'data' self.sock.send.return_value = len(data) transport = self.datagram_transport() transport._closing = True transport._buffer.append((data, ())) self.loop._add_writer(7, transport._sendto_ready) transport._sendto_ready() self.sock.sendto.assert_called_with(data, ()) self.assertFalse(self.loop.writers) self.sock.close.assert_called_with() self.protocol.connection_lost.assert_called_with(None) def test_sendto_ready_no_data(self): transport = self.datagram_transport() self.loop._add_writer(7, transport._sendto_ready) transport._sendto_ready() self.assertFalse(self.sock.sendto.called) self.assertFalse(self.loop.writers) def test_sendto_ready_tryagain(self): self.sock.sendto.side_effect = BlockingIOError transport = self.datagram_transport() transport._buffer.extend([(b'data1', ()), (b'data2', ())]) self.loop._add_writer(7, transport._sendto_ready) transport._sendto_ready() self.loop.assert_writer(7, transport._sendto_ready) self.assertEqual( [(b'data1', ()), (b'data2', ())], list(transport._buffer)) def test_sendto_ready_exception(self): err = self.sock.sendto.side_effect = RuntimeError() transport = self.datagram_transport() transport._fatal_error = mock.Mock() transport._buffer.append((b'data', ())) transport._sendto_ready() transport._fatal_error.assert_called_with( err, 'Fatal write error on datagram transport') def test_sendto_ready_error_received(self): self.sock.sendto.side_effect = ConnectionRefusedError transport = self.datagram_transport() transport._fatal_error = mock.Mock() transport._buffer.append((b'data', ())) transport._sendto_ready() self.assertFalse(transport._fatal_error.called) def test_sendto_ready_error_received_connection(self): self.sock.send.side_effect = ConnectionRefusedError transport = self.datagram_transport(address=('0.0.0.0', 1)) transport._fatal_error = mock.Mock() transport._buffer.append((b'data', ())) transport._sendto_ready() self.assertFalse(transport._fatal_error.called) self.assertTrue(self.protocol.error_received.called) @mock.patch('asyncio.base_events.logger.error') def test_fatal_error_connected(self, m_exc): transport = self.datagram_transport(address=('0.0.0.0', 1)) err = ConnectionRefusedError() transport._fatal_error(err) self.assertFalse(self.protocol.error_received.called) m_exc.assert_called_with( test_utils.MockPattern( 'Fatal error on transport\nprotocol:.*\ntransport:.*'), exc_info=(ConnectionRefusedError, MOCK_ANY, MOCK_ANY)) if __name__ == '__main__': unittest.main()