def test_ideal_network(self):
"""reliability over an ideal framework"""
stopServer = threading.Event()
server = threading.Thread(target=server_app.main,
args=(False, stopServer, winsize, timeout,
outputfile))
server.start()
client_app.main(False, timeout=100, input=inputfile)
stopServer.set()
self.assertTrue(filecmp.cmp(inputfile, outputfile))
def test_duplicates_network(self):
"""reliability over network with duplicate packets"""
# setup environment
run_command(netem_change.format("duplicate 10%"))
# launch localhost client connecting to server
client_app.main()
time.sleep(1)
# client sends content to server
if os.path.isfile(self.inputfile) and os.path.isfile(self.outputfile):
self.assertTrue(filecmp.cmp(self.inputfile, self.outputfile))
def test_ideal_network(self):
"""reliability over an ideal framework"""
# setup environment (nothing to set)
# launch localhost client connecting to server
client_app.main()
time.sleep(1)
# client sends content to server
if os.path.isfile(self.inputfile) and os.path.isfile(self.outputfile):
self.assertTrue(filecmp.cmp(self.inputfile, self.outputfile))
def test_reordering_network(self):
"""reliability over network with packet reordering"""
run_command(netem_change.format("delay 200ms reorder 50% 50%"))
stopServer = threading.Event()
server = threading.Thread(target=server_app.main,
args=(False, stopServer, winsize, timeout,
outputfile))
server.start()
client_app.main(False, timeout=100, input=inputfile)
stopServer.set()
self.assertTrue(filecmp.cmp(inputfile, outputfile))
def test_flipping_network(self):
"""reliability over network with bit flips
(which sometimes results in lower layer packet loss)"""
# setup environment
run_command(netem_change.format("corrupt 1%"))
# launch localhost client connecting to server
client_app.main()
time.sleep(1)
# client sends content to server
if os.path.isfile(self.inputfile) and os.path.isfile(self.outputfile):
self.assertTrue(filecmp.cmp(self.inputfile, self.outputfile))
def test_flipping_network(self):
"""reliability over network with bit flips
(which sometimes results in lower layer packet loss)"""
run_command(netem_change.format("corrupt 1%"))
stopServer = threading.Event()
server = threading.Thread(target=server_app.main,
args=(False, stopServer, winsize, timeout,
outputfile))
server.start()
client_app.main(False, timeout=100, input=inputfile)
stopServer.set()
self.assertTrue(filecmp.cmp(inputfile, outputfile))
def test_delayed_network(self):
"""reliability over network with delay relative to the timeout value"""
run_command(
netem_change.format("delay " + str(0.5 * timeout) + "ms 20ms"))
stopServer = threading.Event()
server = threading.Thread(target=server_app.main,
args=(False, stopServer, winsize, timeout,
outputfile))
server.start()
client_app.main(False, timeout=100, input=inputfile)
stopServer.set()
self.assertTrue(filecmp.cmp(inputfile, outputfile))
def test_delayed_network(self):
"""reliability over network with delay relative to the timeout value"""
# setup environment
run_command(netem_change.format("delay " + str(timeout) + "ms 20ms"))
# launch localhost client connecting to server
client_app.main()
time.sleep(1)
# client sends content to server
# server receives content from client
if os.path.isfile(self.inputfile) and os.path.isfile(self.outputfile):
self.assertTrue(filecmp.cmp(self.inputfile, self.outputfile))
def test_reordering_network(self):
"""reliability over network with packet reordering"""
# setup environment
run_command(netem_change.format("delay 20ms reorder 25% 50%"))
# launch localhost client connecting to server
client_app.main()
time.sleep(1)
# client sends content to server
# server receives content from client
if os.path.isfile(self.inputfile) and os.path.isfile(self.outputfile):
self.assertTrue(filecmp.cmp(self.inputfile, self.outputfile))
# content received by server matches the content sent by client
print("hallo")
def test_allbad_network(self):
"""reliability over network with all of the above problems"""
#run_command(netem_change.format("corrupt 1% duplicate 10% loss 10% 25% delay 20ms reorder 25% 50%"))
run_command(
netem_change.format(
"corrupt 1% duplicate 10% loss 10% 25% delay 1ms reorder 25% 50%"
))
stopServer = threading.Event()
server = threading.Thread(target=server_app.main,
args=(False, stopServer, winsize, timeout,
outputfile))
server.start()
client_app.main(False, timeout=100, input=inputfile)
stopServer.set()
self.assertTrue(filecmp.cmp(inputfile, outputfile))
def test_allbad_network(self):
"""reliability over network with all of the above problems"""
# setup environment
run_command(
netem_change.format(
"corrupt 1% duplicate 10% loss 10% 25% delay 20ms reorder 25% 50%"
))
# launch localhost client connecting to server
# client sends content to server
client_app.main()
time.sleep(1)
# server receives content from client
if os.path.isfile(self.inputfile) and os.path.isfile(self.outputfile):
self.assertTrue(filecmp.cmp(self.inputfile, self.outputfile))
