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"""Test Python-openflow network types.""" |
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2
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import unittest |
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3
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4
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from pyof.foundation.basic_types import BinaryData |
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5
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from pyof.foundation.network_types import GenericTLV, IPv4 |
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6
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7
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8
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class TestNetworkTypes(unittest.TestCase): |
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9
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"""Reproduce bugs found.""" |
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10
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11
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def test_GenTLV_value_unpack(self): |
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12
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"""Value attribute should be the same after unpacking.""" |
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value = BinaryData(b'test') |
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tlv = GenericTLV(value=value) |
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tlv_unpacked = GenericTLV() |
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16
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tlv_unpacked.unpack(tlv.pack()) |
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self.assertEqual(tlv.value.value, tlv_unpacked.value.value) |
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19
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20
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class TestIPv4(unittest.TestCase): |
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"""Test IPv4 packets.""" |
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def test_IPv4_pack(self): |
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"""Test pack/unpack of IPv4 class.""" |
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packet = IPv4(dscp=10, ttl=64, protocol=17, source="192.168.0.10", |
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destination="172.16.10.30", options=b'1000', |
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data=b'testdata') |
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packed = packet.pack() |
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expected = b'F(\x00 \x00\x00\x00\x00@\x11\x02' |
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expected += b'\xc5\xc0\xa8\x00\n\xac\x10\n\x1e1000testdata' |
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self.assertEqual(packed, expected) |
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33
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def test_IPv4_unpack(self): |
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"""Test unpack of IPv4 binary packet.""" |
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raw = b'FP\x00$\x00\x00\x00\x00\x80\x06W' |
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raw += b'\xf4\n\x9aN\x81\xc0\xa8\xc7\xcc1000somemoredata' |
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expected = IPv4(dscp=20, ttl=128, protocol=6, source="10.154.78.129", |
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destination="192.168.199.204", options=b'1000', |
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data=b'somemoredata') |
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expected.pack() |
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unpacked = IPv4() |
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unpacked.unpack(raw) |
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self.assertEqual(unpacked, expected) |
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def test_IPv4_size(self): |
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"""Test Header size for IPv4 packet.""" |
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packet = IPv4() |
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packet.pack() |
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self.assertEqual(20, packet.get_size()) |
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self.assertEqual(20, packet.length) |
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self.assertEqual(20, packet.ihl * 4) |
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53
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def test_IPv4_checksum(self): |
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"""Test if the IPv4 checksum is being calculated correclty.""" |
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packet = IPv4(dscp=10, ttl=64, protocol=17, source="192.168.0.10", |
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destination="172.16.10.30", options=b'1000', |
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data=b'testdata') |
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packet.pack() |
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self.assertEqual(packet.checksum, 709) |
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macartur /
python-openflow
