def test_dst_port_f009(self):
f = UdpDatagram(
src_port=0xF0B0,
dst_port=0xF009)
b = bytes(f)
self.assertEqual(b, b"\xF6\xB0\xF0\x09")
f = UdpDatagram.parse(b)
self.assertEqual(f.hdr, b"\xF6")
self.assertEqual(f.src_port, b"\xF0\xB0")
self.assertEqual(f.dst_port, b"\xF0\x09")
def test_dst_port_abcd(self):
f = UdpDatagram(
src_port=0xF0B0,
dst_port=0xABCD)
b = bytes(f)
self.assertEqual(b, b"\xF6\xB0\xAB\xCD")
f = UdpDatagram.parse(b)
self.assertEqual(f.hdr, b"\xF6")
self.assertEqual(f.src_port, b"\xF0\xB0")
self.assertEqual(f.dst_port, b"\xAB\xCD")
def test_src_port_f0b3(self):
f = UdpDatagram(
src_port=0xF0B3,
dst_port=0xF0B0)
b = bytes(f)
self.assertEqual(b, b"\xF7\x30")
f = UdpDatagram.parse(b)
self.assertEqual(f.hdr, b"\xF7")
self.assertEqual(f.src_port, b"\xF0\xB3")
self.assertEqual(f.dst_port, b"\xF0\xB0")
def test_regression_serialize_twice(self):
"""Test serialization can happen more than one time"""
f = UdpDatagram(
src_port=0x1112,
dst_port=0xF0B0)
b1 = bytes(f)
b2 = bytes(f)
self.assertEqual(b1, b2)
def test_insufficient_data(self):
"""Test cases that should raise exceptions"""
with self.assertRaises(UdpDatagramError):
f = UdpDatagram.parse(b"")