Add unit tests for Sebek

scapy/contrib/sebek.uts

+# Sebek layer unit tests
+#
+# Type the following command to launch start the tests:
+# $ test/run_tests -P "load_contrib('sebek')" -t scapy/contrib/sebek.uts
+
++ Sebek protocol
+
+= Layer binding 1
+pkt = IP() / UDP() / SebekHead() / SebekV1()
+pkt.sport == pkt.dport == 1101 and pkt[SebekHead].version == 1
+
+= Packet dissection 1
+pkt = IP(str(pkt))
+pkt.sport == pkt.dport == 1101 and pkt[SebekHead].version == 1
+
+= Layer binding 2
+pkt = IP() / UDP() / SebekHead() / SebekV2Sock()
+pkt.sport == pkt.dport == 1101 and pkt[SebekHead].version == 2 and pkt[SebekHead].type ==2
+
+= Packet dissection 2
+pkt = IP(str(pkt))
+pkt.sport == pkt.dport == 1101 and pkt[SebekHead].version == 2 and pkt[SebekHead].type ==2
+
+= Layer binding 3
+pkt = IPv6()/UDP()/SebekHead()/SebekV3()
+pkt.sport == pkt.dport == 1101 and pkt[SebekHead].version == 3
+
+= Packet dissection 3
+pkt = IPv6(str(pkt))
+pkt.sport == pkt.dport == 1101 and pkt[SebekHead].version == 3