def test_shapesBandwidth(self):
'''
Tests that bandwidth shaping works.
Examines the network speed before, during, and after shaping.
Fails if the network speeds do not reflect expected results.
'''
with Vagrant.ssh('gateway', 'client', 'server') as machines:
gateway, client, server = machines
before = speedBetween(client, server, **IPERF_OPTS)
print 'Actual speed before shaping:', before
shapedSpeed = before / 1024
print 'Desired shaping speed:', shapedSpeed
shape(gateway, client, shapedSpeed)
during = speedBetween(client, server, **IPERF_OPTS)
print 'Actual speed during shaping:', during
unshape(gateway, client)
after = speedBetween(client, server, **IPERF_OPTS)
print 'Actual speed after shaping:', after
if before.slower(Megabit):
self.fail(
'Actual speed before shaping is too slow for shape'
' testing. (is it already being shaped?)')
if during.faster(shapedSpeed):
self.fail(
'Actual speed during shaping exceeded'
' shaping speed.')
if after.slower(shapedSpeed * 2):
self.fail(
'Actual speed after shaping appears'
' to still be shaped.')
if after.slower(before * 0.7):
self.fail(
'Actual speed after shaping did not return'
' to normal value after shaping.')
def test_shapesBandwidth(self):
"""
Tests that bandwidth shaping works.
Examines the network speed before, during, and after shaping.
Fails if the network speeds do not reflect expected results.
"""
with Vagrant.ssh("gateway", "client", "server") as machines:
gateway, client, server = machines
before = speedBetween(client, server, **IPERF_OPTS)
print "Actual speed before shaping:", before
shapedSpeed = before / 1024
print "Desired shaping speed:", shapedSpeed
shape(gateway, client, shapedSpeed)
during = speedBetween(client, server, **IPERF_OPTS)
print "Actual speed during shaping:", during
unshape(gateway, client)
after = speedBetween(client, server, **IPERF_OPTS)
print "Actual speed after shaping:", after
if before.slower(Megabit):
self.fail("Actual speed before shaping is too slow for shape" " testing. (is it already being shaped?)")
if during.faster(shapedSpeed):
self.fail("Actual speed during shaping exceeded" " shaping speed.")
if after.slower(shapedSpeed * 2):
self.fail("Actual speed after shaping appears" " to still be shaped.")
if after.slower(before * 0.7):
self.fail("Actual speed after shaping did not return" " to normal value after shaping.")
