276 lines
9.7 KiB
Python
276 lines
9.7 KiB
Python
from tests import skipped, LimitedTestCase, skip_with_pyevent, TestIsTakingTooLong
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from unittest import main
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from eventlet import api, util, coros, proc, greenio, hubs
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from eventlet.green.socket import GreenSSLObject
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import errno
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import os
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import socket
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import sys
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try:
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from cStringIO import StringIO
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except ImportError:
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from StringIO import StringIO
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def bufsized(sock, size=1):
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""" Resize both send and receive buffers on a socket.
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Useful for testing trampoline. Returns the socket.
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>>> import socket
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>>> sock = bufsized(socket.socket(socket.AF_INET, socket.SOCK_STREAM))
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"""
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF, size)
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_RCVBUF, size)
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return sock
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def min_buf_size():
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"""Return the minimum buffer size that the platform supports."""
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test_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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test_sock.setsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF, 1)
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return test_sock.getsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF)
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class TestGreenIo(LimitedTestCase):
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def test_connect_timeout(self):
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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s.settimeout(0.1)
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gs = greenio.GreenSocket(s)
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try:
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self.assertRaises(socket.timeout, gs.connect, ('192.0.2.1', 80))
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except socket.error, e:
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# unreachable is also a valid outcome
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if e[0] != errno.EHOSTUNREACH:
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raise
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def test_close_with_makefile(self):
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def accept_close_early(listener):
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# verify that the makefile and the socket are truly independent
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# by closing the socket prior to using the made file
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try:
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conn, addr = listener.accept()
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fd = conn.makefile()
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conn.close()
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fd.write('hello\n')
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fd.close()
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# socket._fileobjects are odd: writes don't check
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# whether the socket is closed or not, and you get an
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# AttributeError during flush if it is closed
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fd.write('a')
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self.assertRaises(Exception, fd.flush)
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self.assertRaises(socket.error, conn.send, 'b')
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finally:
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listener.close()
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def accept_close_late(listener):
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# verify that the makefile and the socket are truly independent
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# by closing the made file and then sending a character
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try:
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conn, addr = listener.accept()
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fd = conn.makefile()
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fd.write('hello')
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fd.close()
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conn.send('\n')
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conn.close()
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fd.write('a')
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self.assertRaises(Exception, fd.flush)
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self.assertRaises(socket.error, conn.send, 'b')
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finally:
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listener.close()
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def did_it_work(server):
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client = api.connect_tcp(('127.0.0.1', server.getsockname()[1]))
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fd = client.makefile()
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client.close()
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assert fd.readline() == 'hello\n'
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assert fd.read() == ''
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fd.close()
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server = api.tcp_listener(('0.0.0.0', 0))
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killer = coros.execute(accept_close_early, server)
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did_it_work(server)
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killer.wait()
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server = api.tcp_listener(('0.0.0.0', 0))
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killer = coros.execute(accept_close_late, server)
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did_it_work(server)
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killer.wait()
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def test_del_closes_socket(self):
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def accept_once(listener):
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# delete/overwrite the original conn
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# object, only keeping the file object around
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# closing the file object should close everything
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try:
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conn, addr = listener.accept()
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conn = conn.makefile()
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conn.write('hello\n')
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conn.close()
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conn.write('a')
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self.assertRaises(Exception, conn.flush)
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finally:
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listener.close()
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server = api.tcp_listener(('0.0.0.0', 0))
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killer = coros.execute(accept_once, server)
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client = api.connect_tcp(('127.0.0.1', server.getsockname()[1]))
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fd = client.makefile()
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client.close()
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assert fd.read() == 'hello\n'
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assert fd.read() == ''
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killer.wait()
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def test_full_duplex(self):
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large_data = '*' * 10 * min_buf_size()
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listener = bufsized(api.tcp_listener(('127.0.0.1', 0)))
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def send_large(sock):
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sock.sendall(large_data)
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def read_large(sock):
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result = sock.recv(len(large_data))
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expected = 'hello world'
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while len(result) < len(large_data):
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result += sock.recv(len(large_data))
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self.assertEquals(result, large_data)
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def server():
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(sock, addr) = listener.accept()
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sock = bufsized(sock)
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send_large_coro = coros.execute(send_large, sock)
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api.sleep(0)
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result = sock.recv(10)
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expected = 'hello world'
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while len(result) < len(expected):
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result += sock.recv(10)
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self.assertEquals(result, expected)
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send_large_coro.wait()
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server_evt = coros.execute(server)
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client = bufsized(api.connect_tcp(('127.0.0.1',
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listener.getsockname()[1])))
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large_evt = coros.execute(read_large, client)
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api.sleep(0)
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client.sendall('hello world')
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server_evt.wait()
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large_evt.wait()
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client.close()
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def test_sendall(self):
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# test adapted from Marcus Cavanaugh's email
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# it may legitimately take a while, but will eventually complete
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self.timer.cancel()
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second_bytes = 10
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def test_sendall_impl(many_bytes):
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bufsize = max(many_bytes/15, 2)
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def sender(listener):
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(sock, addr) = listener.accept()
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sock = bufsized(sock, size=bufsize)
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sock.sendall('x'*many_bytes)
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sock.sendall('y'*second_bytes)
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listener = api.tcp_listener(("", 0))
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sender_coro = proc.spawn(sender, listener)
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client = bufsized(api.connect_tcp(('localhost',
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listener.getsockname()[1])),
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size=bufsize)
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total = 0
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while total < many_bytes:
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data = client.recv(min(many_bytes - total, many_bytes/10))
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if data == '':
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break
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total += len(data)
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total2 = 0
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while total < second_bytes:
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data = client.recv(second_bytes)
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if data == '':
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break
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total2 += len(data)
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sender_coro.wait()
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client.close()
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for bytes in (1000, 10000, 100000, 1000000):
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test_sendall_impl(bytes)
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@skip_with_pyevent
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def test_multiple_readers(self):
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recvsize = 2 * min_buf_size()
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sendsize = 10 * recvsize
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if recvsize > 100:
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# reset the timer because we're going to be taking
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# longer to send all this extra data
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self.timer.cancel()
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self.timer = api.exc_after(10, TestIsTakingTooLong(10))
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# test that we can have multiple coroutines reading
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# from the same fd. We make no guarantees about which one gets which
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# bytes, but they should both get at least some
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def reader(sock, results):
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while True:
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data = sock.recv(recvsize)
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if data == '':
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break
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results.append(data)
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results1 = []
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results2 = []
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listener = api.tcp_listener(('127.0.0.1', 0))
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def server():
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(sock, addr) = listener.accept()
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sock = bufsized(sock)
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try:
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c1 = proc.spawn(reader, sock, results1)
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c2 = proc.spawn(reader, sock, results2)
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c1.wait()
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c2.wait()
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finally:
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c1.kill()
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c2.kill()
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sock.close()
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server_coro = proc.spawn(server)
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client = bufsized(api.connect_tcp(('127.0.0.1',
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listener.getsockname()[1])))
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client.sendall('*' * sendsize)
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client.close()
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server_coro.wait()
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listener.close()
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self.assert_(len(results1) > 0)
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self.assert_(len(results2) > 0)
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def test_wrap_socket(self):
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try:
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import ssl
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except ImportError:
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pass # pre-2.6
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else:
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sock = api.tcp_listener(('127.0.0.1', 0))
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ssl_sock = ssl.wrap_socket(sock)
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def test_exception_squelching(self):
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return # exception squelching disabled for now (greenthread doesn't
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# re-raise exceptions to the hub)
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server = api.tcp_listener(('0.0.0.0', 0))
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client = api.connect_tcp(('127.0.0.1', server.getsockname()[1]))
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client_2, addr = server.accept()
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def hurl(s):
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s.recv(1)
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{}[1] # keyerror
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fake = StringIO()
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orig = sys.stderr
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sys.stderr = fake
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try:
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api.spawn(hurl, client_2)
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api.sleep(0)
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client.send(' ')
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api.sleep(0)
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finally:
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sys.stderr = orig
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self.assert_('Traceback' in fake.getvalue(),
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"Traceback not in:\n" + fake.getvalue())
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if __name__ == '__main__':
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main()
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