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Feature (contd.): Device Emulation - parameterized test case to check for IP step value other than 1 (default)

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This commit is contained in:
Srivats P 2015-12-19 20:51:04 +05:30
parent 71d04b63bc
commit 6b5a8105e6
1 changed files with 46 additions and 15 deletions
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61
test/emultest.py
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@ -36,8 +36,6 @@ env.user = 'tc'
env.password = 'tc'
env.host_string = 'localhost:50022'
dut_dst_mac = 0x0800278df2b4 #FIXME: hardcoding
# setup logging
log = logging.getLogger(__name__)
logging.basicConfig(level=logging.INFO)
@ -319,8 +317,12 @@ def dut_vlans(request, dut_ports):
# ----------------------------------------------------------------- #
# ================================================================= #
def test_multiEmulDevNoVlan(drone, ports, dut, dut_ports, stream_id,
emul_ports, dgid_list):
@pytest.mark.parametrize('dev_cfg', [
{'step': 1},
{'step': 5},
])
def test_multiEmulDevNoVlan(drone, ports, dut, dut_ports, stream_id,
emul_ports, dgid_list, dev_cfg):
# ----------------------------------------------------------------- #
# TESTCASE: Emulate multiple IPv4 devices (no vlans)
# DUT
@ -333,6 +335,7 @@ def test_multiEmulDevNoVlan(drone, ports, dut, dut_ports, stream_id,
# ----------------------------------------------------------------- #
num_devs = 5
ip_step = dev_cfg['step']
# configure the DUT
sudo('ip address add 10.10.1.1/24 dev ' + dut_ports.rx)
@ -349,6 +352,8 @@ def test_multiEmulDevNoVlan(drone, ports, dut, dut_ports, stream_id,
ip = dg.Extensions[emul.ip4]
ip.address = 0x0a0a0165
ip.prefix_length = 24
if (ip_step != 1):
ip.step = ip_step
ip.default_gateway = 0x0a0a0101
drone.modifyDeviceGroup(devgrp_cfg)
@ -364,6 +369,8 @@ def test_multiEmulDevNoVlan(drone, ports, dut, dut_ports, stream_id,
ip = dg.Extensions[emul.ip4]
ip.address = 0x0a0a0265
ip.prefix_length = 24
if (ip_step != 1):
ip.step = ip_step
ip.default_gateway = 0x0a0a0201
drone.modifyDeviceGroup(devgrp_cfg)
@ -390,11 +397,33 @@ def test_multiEmulDevNoVlan(drone, ports, dut, dut_ports, stream_id,
p.protocol_id.id = ost_pb.Protocol.kIp4FieldNumber
ip = p.Extensions[ip4]
ip.src_ip = 0x0a0a0165
ip.src_ip_mode = Ip4.e_im_inc_host
ip.src_ip_count = num_devs
if ip_step == 1:
ip.src_ip_mode = Ip4.e_im_inc_host
ip.src_ip_count = num_devs
else:
vf = p.variable_field.add()
vf.type = ost_pb.VariableField.kCounter32
vf.offset = 12
vf.mask = 0x000000FF
vf.value = 0x00000065
vf.step = ip_step
vf.mode = ost_pb.VariableField.kIncrement
vf.count = num_devs
ip.dst_ip = 0x0a0a0265
ip.dst_ip_mode = Ip4.e_im_inc_host
ip.dst_ip_count = num_devs
if ip_step == 1:
ip.dst_ip_mode = Ip4.e_im_inc_host
ip.dst_ip_count = num_devs
else:
vf = p.variable_field.add()
vf.type = ost_pb.VariableField.kCounter32
vf.offset = 16
vf.mask = 0x000000FF
vf.value = 0x00000065
vf.step = ip_step
vf.mode = ost_pb.VariableField.kIncrement
vf.count = num_devs
s.protocol.add().protocol_id.id = ost_pb.Protocol.kUdpFieldNumber
s.protocol.add().protocol_id.id = ost_pb.Protocol.kPayloadFieldNumber
@ -410,7 +439,7 @@ def test_multiEmulDevNoVlan(drone, ports, dut, dut_ports, stream_id,
# clear arp on DUT
sudo('ip neigh flush all')
arp_cache = run('ip neigh show')
assert re.search('10.10.2.10[1-5].*lladdr', arp_cache) == None
assert re.search('10.10.[1-2].1\d\d.*lladdr', arp_cache) == None
# resolve ARP on tx/rx ports
log.info('resolving Neighbors on tx/rx ports ...')
@ -430,7 +459,8 @@ def test_multiEmulDevNoVlan(drone, ports, dut, dut_ports, stream_id,
for i in range(num_devs):
cap_pkts = subprocess.check_output([tshark, '-nr', 'capture.pcap',
'-R', '(arp.opcode == 1)'
' && (arp.src.proto_ipv4 == 10.10.1.'+str(101+i)+')'
' && (arp.src.proto_ipv4 == 10.10.1.'
+str(101+i*ip_step)+')'
' && (arp.dst.proto_ipv4 == 10.10.1.1)'])
print(cap_pkts)
assert cap_pkts.count('\n') == 1
@ -445,7 +475,8 @@ def test_multiEmulDevNoVlan(drone, ports, dut, dut_ports, stream_id,
for i in range(num_devs):
cap_pkts = subprocess.check_output([tshark, '-nr', 'capture.pcap',
'-R', '(arp.opcode == 1)'
' && (arp.src.proto_ipv4 == 10.10.2.'+str(101+i)+')'
' && (arp.src.proto_ipv4 == 10.10.2.'
+str(101+i*ip_step)+')'
' && (arp.dst.proto_ipv4 == 10.10.2.1)'])
print(cap_pkts)
assert cap_pkts.count('\n') == 0
@ -497,12 +528,12 @@ def test_multiEmulDevNoVlan(drone, ports, dut, dut_ports, stream_id,
log.info('dumping Rx capture buffer (filtered)')
for i in range(num_devs):
cap_pkts = subprocess.check_output([tshark, '-nr', 'capture.pcap',
'-R', '(ip.src == 10.10.1.' + str(101+i) + ') '
' && (ip.dst == 10.10.2.' + str(101+i) + ')'
'-R', '(ip.src == 10.10.1.' + str(101+i*ip_step) + ') '
' && (ip.dst == 10.10.2.' + str(101+i*ip_step) + ')'
' && (eth.dst == 00:01:02:03:0b:'
+ format(1+i, '02x')+')'])
print(cap_pkts)
assert cap_pkts.count('\n') == s.control.num_packets/ip.src_ip_count
assert cap_pkts.count('\n') == s.control.num_packets/num_devs
os.remove('capture.pcap')
drone.stopTransmit(ports.tx)
@ -527,7 +558,7 @@ def test_multiEmulDevNoVlan(drone, ports, dut, dut_ports, stream_id,
{'base': 31, 'count': 2},
{'base': 1, 'count': 3}],
])
def test_multiEmulDevPerVlan(request, drone, ports, dut, dut_ports, stream_id,
def test_multiEmulDevPerVlan(request, drone, ports, dut, dut_ports, stream_id,
emul_ports, dgid_list, vlan_cfg):
# ----------------------------------------------------------------- #
# TESTCASE: Emulate multiple IPv4 device per multiple single-tag VLANs