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# Copyright (C) 2006-2007 Robey Pointer <robeypointer@gmail.com>
#
# This file is part of paramiko.
#
# Paramiko is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
Some unit tests for BufferedPipe.
"""
import threading
import time
import unittest
from paramiko.buffered_pipe import BufferedPipe, PipeTimeout
from paramiko import pipe
from util import ParamikoTest
def delay_thread(pipe):
pipe.feed('a')
time.sleep(0.5)
pipe.feed('b')
pipe.close()
def close_thread(pipe):
time.sleep(0.2)
pipe.close()
class BufferedPipeTest(ParamikoTest):
def test_1_buffered_pipe(self):
p = BufferedPipe()
self.assert_(not p.read_ready())
p.feed('hello.')
self.assert_(p.read_ready())
data = p.read(6)
self.assertEquals('hello.', data)
p.feed('plus/minus')
self.assertEquals('plu', p.read(3))
self.assertEquals('s/m', p.read(3))
self.assertEquals('inus', p.read(4))
p.close()
self.assert_(not p.read_ready())
self.assertEquals('', p.read(1))
def test_2_delay(self):
p = BufferedPipe()
self.assert_(not p.read_ready())
threading.Thread(target=delay_thread, args=(p,)).start()
self.assertEquals('a', p.read(1, 0.1))
try:
p.read(1, 0.1)
self.assert_(False)
except PipeTimeout:
pass
self.assertEquals('b', p.read(1, 1.0))
self.assertEquals('', p.read(1))
def test_3_close_while_reading(self):
p = BufferedPipe()
threading.Thread(target=close_thread, args=(p,)).start()
data = p.read(1, 1.0)
self.assertEquals('', data)
def test_4_or_pipe(self):
p = pipe.make_pipe()
p1, p2 = pipe.make_or_pipe(p)
self.assertFalse(p._set)
p1.set()
self.assertTrue(p._set)
p2.set()
self.assertTrue(p._set)
p1.clear()
self.assertTrue(p._set)
p2.clear()
self.assertFalse(p._set)
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