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# IVLE - Informatics Virtual Learning Environment
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# Copyright (C) 2007-2010 The University of Melbourne
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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from nose import with_setup
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from nose.tools import assert_equal, raises
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NULLNETSTRING = "0:,"
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SIMPLESTRING = "Hello world!"
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SIMPLENETSTRING = "12:Hello world!,"
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class TestCases(object):
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class TestChat(object):
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"""Creates a socket pair for testing"""
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self.s1, self.s2 = socket.socketpair()
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self.s1.settimeout(TIMEOUT)
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self.s2.settimeout(TIMEOUT)
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"""Closes the socket pair"""
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@with_setup(setup, teardown)
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def test_send_null_netstring(self):
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"""Check that we construct a empty Netstring correctly"""
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chat.send_netstring(self.s1, "")
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ivle.chat.send_netstring(self.s1, "")
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assert_equal(self.s2.recv(1024), NULLNETSTRING)
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@with_setup(setup, teardown)
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def test_send_simple_netstring(self):
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"""Check that we construct a simple Netstring correctly"""
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chat.send_netstring(self.s1, SIMPLESTRING)
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ivle.chat.send_netstring(self.s1, SIMPLESTRING)
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assert_equal(self.s2.recv(1024), SIMPLENETSTRING)
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@with_setup(setup, teardown)
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def test_recv_null_netstring(self):
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"""Check that we can decode a null Netstring"""
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self.s1.sendall(NULLNETSTRING)
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assert_equal(chat.recv_netstring(self.s2), "")
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assert_equal(ivle.chat.recv_netstring(self.s2), "")
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@with_setup(setup, teardown)
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def test_recv_null_netstring(self):
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"""Check that we can decode a simple Netstring"""
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self.s1.sendall(SIMPLENETSTRING)
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assert_equal(chat.recv_netstring(self.s2), SIMPLESTRING)
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assert_equal(ivle.chat.recv_netstring(self.s2), SIMPLESTRING)
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@with_setup(setup, teardown)
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@raises(socket.timeout)
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def test_short_netstring(self):
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self.s1.sendall("1234:not that long!,")
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assert chat.recv_netstring(self.s2) is None
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assert ivle.chat.recv_netstring(self.s2) is None
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@with_setup(setup, teardown)
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@raises(chat.ProtocolError)
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@raises(ivle.chat.ProtocolError)
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def test_long_netstring(self):
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self.s1.sendall("5:not that short!,")
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assert chat.recv_netstring(self.s2) is None
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assert ivle.chat.recv_netstring(self.s2) is None