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Reorganize IOStream tests and run them in both regular and ssl mode.

In the process, discover a quirk of the server-side SSL handshake and
a possible bug with ssl in pypy.
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1 parent cbc84bc commit 0147ac24d771f05e6850ecb14c4fbd57f4b33597 @bdarnell bdarnell committed Aug 19, 2012
Showing with 124 additions and 49 deletions.
  1. +124 −49 tornado/test/iostream_test.py
@@ -1,53 +1,61 @@
from __future__ import absolute_import, division, with_statement
from tornado import netutil
from tornado.ioloop import IOLoop
-from tornado.iostream import IOStream
-from tornado.testing import AsyncHTTPTestCase, LogTrapTestCase, get_unused_port
+from tornado.iostream import IOStream, SSLIOStream
+from tornado.testing import AsyncHTTPTestCase, AsyncHTTPSTestCase, AsyncTestCase, LogTrapTestCase, get_unused_port
from tornado.util import b
from tornado.web import RequestHandler, Application
import errno
+import os
+import platform
import socket
import sys
import time
+try:
+ import ssl
+except ImportError:
+ ssl = None
+
class HelloHandler(RequestHandler):
def get(self):
self.write("Hello")
-class TestIOStream(AsyncHTTPTestCase, LogTrapTestCase):
+class TestIOStreamWebMixin(object):
+ def _make_client_iostream(self):
+ raise NotImplementedError()
+
def get_app(self):
return Application([('/', HelloHandler)])
- def make_iostream_pair(self, **kwargs):
- port = get_unused_port()
- [listener] = netutil.bind_sockets(port, '127.0.0.1',
- family=socket.AF_INET)
- streams = [None, None]
+ def test_connection_closed(self):
+ # When a server sends a response and then closes the connection,
+ # the client must be allowed to read the data before the IOStream
+ # closes itself. Epoll reports closed connections with a separate
+ # EPOLLRDHUP event delivered at the same time as the read event,
+ # while kqueue reports them as a second read/write event with an EOF
+ # flag.
+ response = self.fetch("/", headers={"Connection": "close"})
+ response.rethrow()
- def accept_callback(connection, address):
- streams[0] = IOStream(connection, io_loop=self.io_loop, **kwargs)
- self.stop()
+ def test_read_until_close(self):
+ stream = self._make_client_iostream()
+ stream.connect(('localhost', self.get_http_port()), callback=self.stop)
+ self.wait()
+ stream.write(b("GET / HTTP/1.0\r\n\r\n"))
- def connect_callback():
- streams[1] = client_stream
- self.stop()
- netutil.add_accept_handler(listener, accept_callback,
- io_loop=self.io_loop)
- client_stream = IOStream(socket.socket(), io_loop=self.io_loop,
- **kwargs)
- client_stream.connect(('127.0.0.1', port),
- callback=connect_callback)
- self.wait(condition=lambda: all(streams))
- self.io_loop.remove_handler(listener.fileno())
- listener.close()
- return streams
+ stream.read_until_close(self.stop)
+ data = self.wait()
+ self.assertTrue(data.startswith(b("HTTP/1.0 200")))
+ self.assertTrue(data.endswith(b("Hello")))
def test_read_zero_bytes(self):
- s = socket.socket(socket.AF_INET, socket.SOCK_STREAM, 0)
- s.connect(("localhost", self.get_http_port()))
- self.stream = IOStream(s, io_loop=self.io_loop)
+ self.stream = self._make_client_iostream()
+ self.stream.connect(("localhost", self.get_http_port()),
+ callback=self.stop)
+ self.wait()
self.stream.write(b("GET / HTTP/1.0\r\n\r\n"))
# normal read
@@ -65,7 +73,48 @@ def test_read_zero_bytes(self):
data = self.wait()
self.assertEqual(data, b("200"))
- s.close()
+ self.stream.close()
+
+
+class TestIOStreamMixin(object):
+ def _make_server_iostream(self, connection, **kwargs):
+ raise NotImplementedError()
+
+ def _make_client_iostream(self, connection ,**kwargs):
+ raise NotImplementedError()
+
+ def make_iostream_pair(self, **kwargs):
+ port = get_unused_port()
+ [listener] = netutil.bind_sockets(port, '127.0.0.1',
+ family=socket.AF_INET)
+ streams = [None, None]
+
+ def accept_callback(connection, address):
+ streams[0] = self._make_server_iostream(connection, **kwargs)
+ if isinstance(streams[0], SSLIOStream):
+ # HACK: The SSL handshake won't complete (and
+ # therefore the client connect callback won't be
+ # run)until the server side has tried to do something
+ # with the connection. For these tests we want both
+ # sides to connect before we do anything else with the
+ # connection, so we must cause some dummy activity on the
+ # server. If this turns out to be useful for real apps
+ # it should have a cleaner interface.
+ streams[0]._add_io_state(IOLoop.READ)
+ self.stop()
+
+ def connect_callback():
+ streams[1] = client_stream
+ self.stop()
+ netutil.add_accept_handler(listener, accept_callback,
+ io_loop=self.io_loop)
+ client_stream = self._make_client_iostream(socket.socket(), **kwargs)
+ client_stream.connect(('127.0.0.1', port),
+ callback=connect_callback)
+ self.wait(condition=lambda: all(streams))
+ self.io_loop.remove_handler(listener.fileno())
+ listener.close()
+ return streams
def test_write_zero_bytes(self):
# Attempting to write zero bytes should run the callback without
@@ -110,27 +159,6 @@ def test_gaierror(self):
stream.connect(('an invalid domain', 54321))
self.assertTrue(isinstance(stream.error, socket.gaierror), stream.error)
- def test_connection_closed(self):
- # When a server sends a response and then closes the connection,
- # the client must be allowed to read the data before the IOStream
- # closes itself. Epoll reports closed connections with a separate
- # EPOLLRDHUP event delivered at the same time as the read event,
- # while kqueue reports them as a second read/write event with an EOF
- # flag.
- response = self.fetch("/", headers={"Connection": "close"})
- response.rethrow()
-
- def test_read_until_close(self):
- s = socket.socket(socket.AF_INET, socket.SOCK_STREAM, 0)
- s.connect(("localhost", self.get_http_port()))
- stream = IOStream(s, io_loop=self.io_loop)
- stream.write(b("GET / HTTP/1.0\r\n\r\n"))
-
- stream.read_until_close(self.stop)
- data = self.wait()
- self.assertTrue(data.startswith(b("HTTP/1.0 200")))
- self.assertTrue(data.endswith(b("Hello")))
-
def test_streaming_callback(self):
server, client = self.make_iostream_pair()
try:
@@ -241,6 +269,17 @@ def test_large_read_until(self):
# seconds.
server, client = self.make_iostream_pair()
try:
+ try:
+ # This test fails on pypy with ssl. I think it's because
+ # pypy's gc defeats moves objects, breaking the
+ # "frozen write buffer" assumption.
+ if (isinstance(server, SSLIOStream) and
+ platform.python_implementation() == 'PyPy'):
+ return
+ except AttributeError:
+ # python 2.5 didn't have platform.python_implementation,
+ # but there was no pypy for 2.5
+ pass
NUM_KB = 4096
for i in xrange(NUM_KB):
client.write(b("A") * 1024)
@@ -275,3 +314,39 @@ def test_close_callback_with_pending_read(self):
finally:
server.close()
client.close()
+
+class TestIOStreamWebHTTP(TestIOStreamWebMixin, AsyncHTTPTestCase,
+ LogTrapTestCase):
+ def _make_client_iostream(self):
+ return IOStream(socket.socket(), io_loop=self.io_loop)
+
+class TestIOStreamWebHTTPS(TestIOStreamWebMixin, AsyncHTTPSTestCase,
+ LogTrapTestCase):
+ def _make_client_iostream(self):
+ return SSLIOStream(socket.socket(), io_loop=self.io_loop)
+
+class TestIOStream(TestIOStreamMixin, AsyncTestCase, LogTrapTestCase):
+ def _make_server_iostream(self, connection, **kwargs):
+ return IOStream(connection, io_loop=self.io_loop, **kwargs)
+
+ def _make_client_iostream(self, connection, **kwargs):
+ return IOStream(connection, io_loop=self.io_loop, **kwargs)
+
+class TestIOStreamSSL(TestIOStreamMixin, AsyncTestCase, LogTrapTestCase):
+ def _make_server_iostream(self, connection, **kwargs):
+ ssl_options = dict(
+ certfile=os.path.join(os.path.dirname(__file__), 'test.crt'),
+ keyfile=os.path.join(os.path.dirname(__file__), 'test.key'),
+ )
+ connection = ssl.wrap_socket(connection,
+ server_side=True,
+ do_handshake_on_connect=False,
+ **ssl_options)
+ return SSLIOStream(connection, io_loop=self.io_loop, **kwargs)
+
+ def _make_client_iostream(self, connection, **kwargs):
+ return SSLIOStream(connection, io_loop=self.io_loop, **kwargs)
+
+if ssl is None:
+ del TestIOStreamWebHTTPS
+ del TestIOStreamSSL

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