def test_023_test_serialize_deserialize(self):
"""
Test serializing and deserializing a DeviceBusPacket
"""
dbp = DeviceBusPacket(
sequence=0x00,
device_type=0x00,
board_id=0x00000000,
device_id=0x0000,
data=[0x0, 0x0, 0x0]
)
packet = dbp.serialize()
# F everything out so we know deserialization actually did something
dbp.sequence = 0xFF
dbp.device_type = 0xFF
dbp.board_id = 0xFFFFFFFF
dbp.device_id = 0xFFFF
dbp.data = [0xFF, 0xFF]
dbp.deserialize(packet)
self.assertEqual(dbp.sequence, 0x00)
self.assertEqual(dbp.device_type, 0x00)
self.assertEqual(dbp.board_id, 0x00000000)
self.assertEqual(dbp.device_id, 0x0000)
self.assertEqual(dbp.data, [0x0, 0x0, 0x0])
def test_024_test_serialize_deserialize(self):
"""
Test serializing and deserializing a DeviceBusPacket
"""
dbp = DeviceBusPacket(
sequence=0xA0,
device_type=0xB3,
board_id=0xFA00B3E9,
device_id=0xF011,
data=[0x1B, 0xAA, 0xF0]
)
packet = dbp.serialize()
# 0 everything out so we know deserialization actually did something
dbp.sequence = 0
dbp.device_type = 0
dbp.board_id = 0
dbp.device_id = 0
dbp.data = [0]
dbp.deserialize(packet)
self.assertEqual(dbp.sequence, 0xA0)
self.assertEqual(dbp.device_type, 0xB3)
self.assertEqual(dbp.board_id, 0xFA00B3E9)
self.assertEqual(dbp.device_id, 0xF011)
self.assertEqual(dbp.data, [0x1B, 0xAA, 0xF0])
def test_021_test_serialize_deserialize(self):
"""
Test serializing and deserializing a DeviceBusPacket
"""
dbp = DeviceBusPacket(
sequence=0x03,
device_type=0x40,
board_id=0x12345678,
device_id=0xAA05,
data=[0x1, 0x2, 0x3]
)
packet = dbp.serialize()
# 0 everything out so we know deserialization actually did something
dbp.sequence = 0
dbp.device_type = 0
dbp.board_id = 0
dbp.device_id = 0
dbp.data = [0]
dbp.deserialize(packet)
self.assertEqual(dbp.sequence, 0x03)
self.assertEqual(dbp.device_type, 0x40)
self.assertEqual(dbp.board_id, 0x12345678)
self.assertEqual(dbp.device_id, 0xAA05)
self.assertEqual(dbp.data, [0x1, 0x2, 0x3])
def test_013_invalid_devicebus_packet_deserialize(self):
"""
Test deserializing a packet where the trailer byte is invalid
"""
dbp = DeviceBusPacket()
# invalid packet
packet = [0x00, 0x0B, 0x03, 0x40, 0x12, 0x34, 0x56, 0x78, 0xAA, 0x05, 0x1, 0x2, 0x3, 0xf4, 0x03]
with self.assertRaises(BusDataException):
dbp.deserialize(packet)
def test_010_invalid_devicesbus_packet_deserialize(self):
"""
Test deserializing a packet with an invalid header byte
"""
dbp = DeviceBusPacket()
# invalid packet
packet = [0x00, 0x0C, 0x03, 0x40, 0x12, 0x34, 0x56, 0x78, 0xAA, 0x05, 0x1, 0x2, 0x3, 0xf4, 0x04]
with self.assertRaises(BusDataException):
dbp.deserialize(packet)
def test_012_invalid_devicebus_packet_deserialize(self):
"""
Test deserializing a packet when the packet checksum doesnt match the
generated checksum
"""
dbp = DeviceBusPacket()
# invalid packet
packet = [0x00, 0x0B, 0x03, 0x40, 0x12, 0x34, 0x56, 0x78, 0xAA, 0x05, 0x1, 0x2, 0x3, 0xf0, 0x04]
with self.assertRaises(BusDataException):
dbp.deserialize(packet)
def test_011_invalid_devicebus_packet_deserialize(self):
"""
Test deserializing a packet whose length byte doesnt match the length of
the packet
"""
dbp = DeviceBusPacket()
# invalid packet
packet = [0x00, 0x0B, 0x03, 0x40, 0x12, 0x34, 0x56, 0x78, 0xAA, 0x05, 0x1, 0x2, 0x3, 0xf4, 0x04]
with self.assertRaises(BusDataException):
dbp.deserialize(packet)
def test_009_invalid_devicebus_packet_deserialize(self):
"""
Test deserializing a packet when the length of the packet is less than
the minimum packet length
"""
dbp = DeviceBusPacket()
# invalid packet
packet = [1, 12, 3, 64, 18, 52, 86, 120, 170, 244, 4]
with self.assertRaises(BusDataException):
dbp.deserialize(packet)
def test_008_valid_devicebus_packet_deserialize(self):
"""
Test deserializing a packet
"""
dbp = DeviceBusPacket()
# use a known packet
packet = [1, 12, 3, 64, 18, 52, 86, 120, 170, 5, 1, 2, 3, 244, 4]
dbp.deserialize(packet)
self.assertEqual(dbp.sequence, 0x03)
self.assertEqual(dbp.device_type, 0x40)
self.assertEqual(dbp.board_id, 0x12345678)
self.assertEqual(dbp.device_id, 0xAA05)
self.assertEqual(dbp.data, [0x1, 0x2, 0x3])
