regression.uts

assert(len([k for k in conf.mib.iterkeys() if "scapy" in k]) == 1)

assert(len([oid for oid in conf.mib]) > 100)

assert(conf.mib._my_find("MIB", "keyUsage"))

assert(len(conf.mib._find("MIB", "keyUsage")))

assert(len(conf.mib._recurs_find_all((), "MIB", "keyUsage")))

= BER tests

BER_id_enc(42) == '*'
BER_id_enc(2807) == b'\xbfw'

b = BERcodec_IPADDRESS()
r1 = b.enc("8.8.8.8")
r1 == b'@\x04\x08\x08\x08\x08'

r2 = b.dec(r1)[0]
r2.val == '8.8.8.8'

############
############
+ inet.py

= IPv4 - ICMPTimeStampField
test = ICMPTimeStampField("test", None)
value = test.any2i("", "07:28:28.07")
value == 26908070
test.i2repr("", value) == '7:28:28.70'

= IPv4 - UDP null checksum
IP(str(IP()/UDP()/Raw(b"\xff\xff\x01\x6a")))[UDP].chksum == 0xFFFF

= IPv4 - (IP|UDP|TCP|ICMP)Error
query = IP(dst="192.168.0.1", src="192.168.0.254", ttl=1)/UDP()/DNS()
answer = IP(dst="192.168.0.254", src="192.168.0.2", ttl=1)/ICMP()/IPerror(dst="192.168.0.1", src="192.168.0.254", ttl=0)/UDPerror()/DNS()

query = IP(dst="192.168.0.1", src="192.168.0.254", ttl=1)/UDP()/DNS()
answer = IP(dst="192.168.0.254", src="192.168.0.2")/ICMP(type=11)/IPerror(dst="192.168.0.1", src="192.168.0.254", ttl=0)/UDPerror()/DNS()
assert(answer.answers(query) == True)

query = IP(dst="192.168.0.1", src="192.168.0.254", ttl=1)/TCP()
answer = IP(dst="192.168.0.254", src="192.168.0.2")/ICMP(type=11)/IPerror(dst="192.168.0.1", src="192.168.0.254", ttl=0)/TCPerror()

assert(answer.answers(query) == True)

query = IP(dst="192.168.0.1", src="192.168.0.254", ttl=1)/ICMP()/"scapy"
answer = IP(dst="192.168.0.254", src="192.168.0.2")/ICMP(type=11)/IPerror(dst="192.168.0.1", src="192.168.0.254", ttl=0)/ICMPerror()/"scapy"
assert(answer.answers(query) == True)

= IPv4 - utilities
l = overlap_frag(IP(dst="1.2.3.4")/ICMP()/("AB"*8), ICMP()/("CD"*8))
assert(len(l) == 6)
assert([len(str(p[IP].payload)) for p in l] == [8, 8, 8, 8, 8, 8])
assert([(p.frag, p.flags.MF) for p in [IP(str(p)) for p in l]] == [(0, True), (1, True), (2, True), (0, True), (1, True), (2, False)])

= IPv4 - traceroute utilities
ip_ttl = [("192.168.0.%d" % i, i) for i in xrange(1, 10)]

tr_packets = [ (IP(dst="192.168.0.1", src="192.168.0.254", ttl=ttl)/TCP(options=[("Timestamp", "00:00:%.2d.00" % ttl)])/"scapy",
                IP(dst="192.168.0.254", src=ip)/ICMP(type=11)/IPerror(dst="192.168.0.1", src="192.168.0.254", ttl=0)/TCPerror()/"scapy")
               for (ip, ttl) in ip_ttl ]

tr = TracerouteResult(tr_packets)
assert(tr.get_trace() == {'192.168.0.1': {1: ('192.168.0.1', False), 2: ('192.168.0.2', False), 3: ('192.168.0.3', False), 4: ('192.168.0.4', False), 5: ('192.168.0.5', False), 6: ('192.168.0.6', False), 7: ('192.168.0.7', False), 8: ('192.168.0.8', False), 9: ('192.168.0.9', False)}})

result_show = ""
def test_show():
    def write(s):
        global result_show
        result_show += s
    mock_stdout = mock.Mock()
    mock_stdout.write = write
    saved_stdout = sys.stdout
    sys.stdout = mock_stdout
    tr = TracerouteResult(tr_packets)
    tr.show()
    sys.stdout = saved_stdout
    expected = "  192.168.0.1:tcp80  \n"
    expected += "1 192.168.0.1     11 \n"
    expected += "2 192.168.0.2     11 \n"
    expected += "3 192.168.0.3     11 \n"
    expected += "4 192.168.0.4     11 \n"
    expected += "5 192.168.0.5     11 \n"
    expected += "6 192.168.0.6     11 \n"
    expected += "7 192.168.0.7     11 \n"
    expected += "8 192.168.0.8     11 \n"
    expected += "9 192.168.0.9     11 \n"
    index_result = result_show.index("1")
    index_expected = expected.index("1")
    assert(result_show[index_result:] == expected[index_expected:])

test_show()

import mock
result_summary = ""
def test_summary():
    def write_summary(s):
        global result_summary
        result_summary += s
    mock_stdout = mock.Mock()
    mock_stdout.write = write_summary
    bck_stdout = sys.stdout
    sys.stdout = mock_stdout
    tr = TracerouteResult(tr_packets)
    tr.summary()
    sys.stdout = bck_stdout
    assert(len(result_summary.split('\n')) == 10)
    assert("IP / TCP 192.168.0.254:ftp_data > 192.168.0.1:http S / Raw ==> IP / ICMP 192.168.0.9 > 192.168.0.254 time-exceeded ttl-zero-during-transit / IPerror / TCPerror / Raw" in result_summary) 

test_summary()

@mock.patch("scapy.layers.inet.plt")
def test_timeskew_graph(mock_plt):
    def fake_plot(data, **kwargs):
        return data
    mock_plt.plot = fake_plot
    srl = SndRcvList([(a, a) for a in [IP(str(p[0])) for p in tr_packets]])
    ret = srl.timeskew_graph("192.168.0.254")
    assert(len(ret) == 9)
    assert(ret[0][1] == 0.0)

test_timeskew_graph()

tr = TracerouteResult(tr_packets)
saved_AS_resolver = conf.AS_resolver
conf.AS_resolver = None
tr.make_graph()
assert(len(tr.graphdef) == 491)
tr.graphdef.startswith("digraph trace {") == True
assert(('"192.168.0.9" ->' in tr.graphdef) == True)
conf.AS_resolver = conf.AS_resolver

pl = PacketList(list([Ether()/x for x in itertools.chain(*tr_packets)]))
srl, ul = pl.sr()
assert(len(srl) == 9 and len(ul) == 0)

conf_color_theme = conf.color_theme
conf.color_theme = BlackAndWhite()
assert(len(pl.sessions().keys()) == 10)
conf.color_theme = conf_color_theme

new_pl = pl.replace(IP.src, "192.168.0.254", "192.168.0.42")
assert("192.168.0.254" not in [p[IP].src for p in new_pl])

= IPv4 - reporting

result_IPID_count = ""
def test_IPID_count():
    def write(s):
        global result_IPID_count
        result_IPID_count += s
    mock_stdout = mock.Mock()
    mock_stdout.write = write
    saved_stdout = sys.stdout
    sys.stdout = mock_stdout
    random.seed(0x2807)
    IPID_count([(IP()/UDP(), IP(id=random.randint(0, 65535))/UDP()) for i in range(3)])
    sys.stdout = saved_stdout
    lines = result_IPID_count.split("\n")
    assert(len(lines) == 5)
    assert(lines[0].endswith("Probably 3 classes: [4613, 53881, 58437]"))

test_IPID_count()