class Protocol(instructor_model.InstructorModel):
byte_order = instructor_fields.BigEndianByteOrder()
protocol = instructor_fields.UInt16(default=7)
received_status = instructor_fields.UInt8(default=0)
urgency = instructor_fields.UInt8(default=0)
msglen = instructor_fields.UInt32(default=0)
data = instructor_fields.Str(msglen, default='')
def test_protocol_creation_str_length_is_defined(self):
protocol = 9
name = '0123456789'
length = 5
fields = {
'byte_order': instructor_fields.NetworkByteOrder(),
'protocol': instructor_fields.UInt16(default=protocol),
'name': instructor_fields.Str(length)
}
Protocol = type('BaseProtocol', (instructor_model.InstructorModel, ),
fields)
package = struct.pack('>H{}s'.format(length), protocol,
name.encode('utf-8'))
p = Protocol(package)
self.assertTrue(p.protocol == protocol)
self.assertTrue(p.name.decode('utf-8') == name[:length])
self.assertTrue(p.pack() == package)
def test_protocol_creation_str_length_depended_as_str(self):
protocol = 9
length = 5
name = '0123456789'
fields = {
'byte_order': instructor_fields.NetworkByteOrder(),
'protocol': instructor_fields.UInt16(default=protocol),
'length': instructor_fields.UInt32(default=length),
'name': instructor_fields.Str('length')
}
Protocol = type('BaseProtocol', (instructor_model.InstructorModel, ),
fields)
package = struct.pack('>HI{}s'.format(length), protocol, length, name)
p = Protocol(package)
self.assertTrue(p.protocol == protocol)
self.assertTrue(p.length == length)
self.assertTrue(p.name == name[:length])
self.assertTrue(p.pack() == package)
class Protocol(instructor_model.InstructorModel):
byte_order = instructor_fields.BigEndianByteOrder()
protocol = instructor_fields.UInt16()
received_status = instructor_fields.UInt8()
urgency = instructor_fields.UInt8()
data = instructor_fields.Str(8)
class Protocol(instructor_model.InstructorModel):
byte_order = instructor_fields.NetworkByteOrder()
protocol = instructor_fields.UInt16(default=proto)
length = instructor_fields.UInt32(default=str_length)
name = instructor_fields.Str('length')