def test_decode_group_descriptor():
distantio = distantio_protocol()
# inputs
group_id = 39
fmt = 0x07
name = "testvar"
# formatting
formatted_name = "{:14s}".format(name)
n = bytes(formatted_name,'ascii')
# formatting
v = (group_id << 10).to_bytes(2,byteorder='big')
frame = bytearray()
frame.append(0x00)
frame += v
frame.append(fmt)
frame += n
crc = crc16(frame).to_bytes(2,byteorder='big')
frame += crc
response = distantio.process(frame)
assert response['type'] == 'returned-group-descriptor'
assert response['group-id'] == group_id
assert response['group-name'] == formatted_name
def test_returned_descriptor_variable_non_writeable():
distantio = distantio_protocol()
# inputs
var_id = 999
group_id = 18
name = "testvariable 1"
fmt = 3
# formatting
formatted_name = "{:14s}".format(name)
data_ID = (var_id + (group_id << 10)).to_bytes(2, byteorder='big')
data = bytes(formatted_name, 'ascii')
frame = bytearray()
frame.append(0x00)
frame += data_ID
frame.append(fmt)
frame += data
crc = crc16(frame).to_bytes(2, byteorder='big')
frame += crc
# Testing frame
response = distantio.process(frame)
assert response['type'] == 'returned-descriptor'
assert response['var-id'] == var_id
assert response['var-name'] == formatted_name
assert response['var-type'] == fmt
assert response['var-writeable'] == False
assert response['var-group'] == group_id
def test_returned_value_float():
distantio = distantio_protocol()
# inputs
var_id = 124
fmt = 0
value = 1.362e-12
extraid_1 = 1.25
extraid_2 = 12715
# formatting
v = (var_id).to_bytes(2, byteorder='big')
n = pack(distantio.format_lookup[fmt], value)
frame = bytearray()
frame.append(0x01)
frame += v
frame.append(fmt)
frame += pack('>f', extraid_1)
frame += pack('>H', extraid_2)
frame += n
crc = crc16(frame).to_bytes(2, byteorder='big')
frame += crc
response = distantio.process(frame)
assert response['type'] == 'returned-value'
assert response['var-id'] == var_id
assert round(response['var-value'], 5) == round(value, 5)
assert response['var-type'] == fmt
assert round(response['var-time'], 5) == round(extraid_1, 5)
assert response['var-array-index'] == extraid_2
def test_returned_value_writeable_int():
distantio = distantio_protocol()
# inputs
var_id = 124
fmt = 0xF3
value = 126594521
extraid_1 = 2.725
extraid_2 = 9513
# formatting
v = (var_id).to_bytes(2, byteorder='big')
n = pack(distantio.format_lookup[fmt & 0x0F], value)
frame = bytearray()
frame.append(0x01)
frame += v
frame.append(fmt)
frame += pack('>f', extraid_1)
frame += pack('>H', extraid_2)
frame += n
crc = crc16(frame).to_bytes(2, byteorder='big')
frame += crc
response = distantio.process(frame)
assert response['type'] == 'returned-value'
assert response['var-id'] == var_id
assert response['var-value'] == value
assert response['var-type'] == fmt & 0x0F
assert round(response['var-time'], 5) == round(extraid_1, 5)
assert response['var-array-index'] == extraid_2
def test_returned_descriptor_variable_non_writeable():
distantio = distantio_protocol()
# inputs
var_id = 999
group_id = 18
name = "testvariable 1"
fmt = 3
# formatting
formatted_name = "{:14s}".format(name)
data_ID = (var_id + (group_id << 10)).to_bytes(2,byteorder='big')
data = bytes(formatted_name,'ascii')
frame = bytearray()
frame.append(0x00)
frame += data_ID
frame.append(fmt)
frame += data
crc = crc16(frame).to_bytes(2,byteorder='big')
frame += crc
# Testing frame
response = distantio.process(frame)
assert response['type'] == 'returned-descriptor'
assert response['var-id'] == var_id
assert response['var-name'] == formatted_name
assert response['var-type'] == fmt
assert response['var-writeable'] == False
assert response['var-group'] == group_id
def test_returned_descriptor_variable_writeable():
distantio = distantio_protocol()
# inputs
var_id = 999
name = "testvariable 2"
fmt = 0xF3
# formatting
formatted_name = "{:14s}".format(name)
v = (var_id).to_bytes(2, byteorder='big')
n = bytes(formatted_name, 'ascii')
frame = bytearray()
frame.append(0x00)
frame += v
frame.append(fmt)
frame += n
crc = crc16(frame).to_bytes(2, byteorder='big')
frame += crc
response = distantio.process(frame)
assert response['type'] == 'returned-descriptor'
assert response['var-id'] == var_id
assert response['var-name'] == formatted_name
assert response['var-type'] == fmt & 0x0F
assert response['var-writeable'] == True
def test_decode_group_descriptor():
distantio = distantio_protocol()
# inputs
group_id = 39
fmt = 0x07
name = "testvar"
# formatting
formatted_name = "{:14s}".format(name)
n = bytes(formatted_name, 'ascii')
# formatting
v = (group_id << 10).to_bytes(2, byteorder='big')
frame = bytearray()
frame.append(0x00)
frame += v
frame.append(fmt)
frame += n
crc = crc16(frame).to_bytes(2, byteorder='big')
frame += crc
response = distantio.process(frame)
assert response['type'] == 'returned-group-descriptor'
assert response['group-id'] == group_id
assert response['group-name'] == formatted_name
def test_returned_value_writeable_int():
distantio = distantio_protocol()
# inputs
var_id = 124
fmt = 0xF3
value = 126594521
extraid_1 = 2.725
extraid_2 = 9513
# formatting
v = (var_id).to_bytes(2,byteorder='big')
n = pack(distantio.format_lookup[fmt & 0x0F],value)
frame = bytearray()
frame.append(0x01)
frame += v
frame.append(fmt)
frame += pack('>f',extraid_1)
frame += pack('>H',extraid_2)
frame += n
crc = crc16(frame).to_bytes(2,byteorder='big')
frame += crc
response = distantio.process(frame)
assert response['type'] == 'returned-value'
assert response['var-id'] == var_id
assert response['var-value'] == value
assert response['var-type'] == fmt & 0x0F
assert round(response['var-time'],5) == round(extraid_1,5)
assert response['var-array-index'] == extraid_2
def test_returned_value_float():
distantio = distantio_protocol()
# inputs
var_id = 124
fmt = 0
value = 1.362e-12
extraid_1 = 1.25
extraid_2 = 12715
# formatting
v = (var_id).to_bytes(2,byteorder='big')
n = pack(distantio.format_lookup[fmt],value)
frame = bytearray()
frame.append(0x01)
frame += v
frame.append(fmt)
frame += pack('>f',extraid_1)
frame += pack('>H',extraid_2)
frame += n
crc = crc16(frame).to_bytes(2,byteorder='big')
frame += crc
response = distantio.process(frame)
assert response['type'] == 'returned-value'
assert response['var-id'] == var_id
assert round(response['var-value'],5) == round(value,5)
assert response['var-type'] == fmt
assert round(response['var-time'],5) == round(extraid_1,5)
assert response['var-array-index'] == extraid_2
def test_returned_descriptor_variable_writeable():
distantio = distantio_protocol()
# inputs
var_id = 999
name = "testvariable 2"
fmt = 0xF3
# formatting
formatted_name = "{:14s}".format(name)
v = (var_id).to_bytes(2,byteorder='big')
n = bytes(formatted_name,'ascii')
frame = bytearray()
frame.append(0x00)
frame += v
frame.append(fmt)
frame += n
crc = crc16(frame).to_bytes(2,byteorder='big')
frame += crc
response = distantio.process(frame)
assert response['type'] == 'returned-descriptor'
assert response['var-id'] == var_id
assert response['var-name'] == formatted_name
assert response['var-type'] == fmt & 0x0F
assert response['var-writeable'] == True
def test_alive_signal():
distantio = distantio_protocol()
frame = bytearray(18)
frame[0] = 0x03
crc = crc16(frame).to_bytes(2,byteorder='big')
frame += crc
response = distantio.process(frame)
assert response['type'] == 'alive-signal'
def test_alive_signal():
distantio = distantio_protocol()
frame = bytearray(18)
frame[0] = 0x03
crc = crc16(frame).to_bytes(2, byteorder='big')
frame += crc
response = distantio.process(frame)
assert response['type'] == 'alive-signal'
def test_returned_descriptor_wrong_size():
distantio = distantio_protocol()
var_id = (38153).to_bytes(2, byteorder='big')
n = bytes("{:14s}".format("testvar"), 'ascii')
frame = bytearray()
frame.append(0x00)
frame += var_id
frame.append(0x00)
frame += n
assert pytest.raises(IndexError, distantio.process, frame)
def test_returned_descriptor_wrong_size():
distantio = distantio_protocol()
var_id = (38153).to_bytes(2,byteorder='big')
n = bytes("{:14s}".format("testvar"),'ascii')
frame = bytearray()
frame.append(0x00)
frame += var_id
frame.append(0x00)
frame += n
assert pytest.raises(IndexError,distantio.process,frame)
def test_decode_wrong_crc():
distantio = distantio_protocol()
var_id = (38153).to_bytes(2, byteorder='big')
n = bytes("{:14s}".format("testvar"), 'ascii')
frame = bytearray()
frame.append(0x00)
frame += var_id
frame.append(0x00)
frame += n
crc = (12238).to_bytes(2, byteorder='big')
frame += crc
assert pytest.raises(ValueError, distantio.process, frame)
def test_decode_wrong_crc():
distantio = distantio_protocol()
var_id = (38153).to_bytes(2,byteorder='big')
n = bytes("{:14s}".format("testvar"),'ascii')
frame = bytearray()
frame.append(0x00)
frame += var_id
frame.append(0x00)
frame += n
crc = (12238).to_bytes(2,byteorder='big')
frame += crc
assert pytest.raises(ValueError,distantio.process,frame)
def test_decode_wrong_cmd():
distantio = distantio_protocol()
var_id = 38153
name = "testvariable 1"
formatted_name = "{:14s}".format(name)
v = (var_id).to_bytes(2, byteorder='big')
n = bytes(formatted_name, 'ascii')
frame = bytearray()
frame.append(0xFF) # Wrong command
frame += v
frame.append(0x00)
frame += n
crc = crc16(frame).to_bytes(2, byteorder='big')
frame += crc
assert pytest.raises(ValueError, distantio.process, frame)
def test_returned_descriptor_wrong_format():
distantio = distantio_protocol()
var_id = 38153
name = "testvar"
formatted_name = "{:14s}".format(name)
v = (var_id).to_bytes(2, byteorder='big')
n = bytes(formatted_name, 'ascii')
frame = bytearray()
frame.append(0x00)
frame += v
frame.append(0xFF) # Wrong format
frame += n
crc = crc16(frame).to_bytes(2, byteorder='big')
frame += crc
assert pytest.raises(ValueError, distantio.process, frame)
def test_decode_wrong_cmd():
distantio = distantio_protocol()
var_id = 38153
name = "testvariable 1"
formatted_name = "{:14s}".format(name)
v = (var_id).to_bytes(2,byteorder='big')
n = bytes(formatted_name,'ascii')
frame = bytearray()
frame.append(0xFF)# Wrong command
frame += v
frame.append(0x00)
frame += n
crc = crc16(frame).to_bytes(2,byteorder='big')
frame += crc
assert pytest.raises(ValueError,distantio.process,frame)
def test_returned_descriptor_wrong_format():
distantio = distantio_protocol()
var_id = 38153
name = "testvar"
formatted_name = "{:14s}".format(name)
v = (var_id).to_bytes(2,byteorder='big')
n = bytes(formatted_name,'ascii')
frame = bytearray()
frame.append(0x00)
frame += v
frame.append(0xFF)# Wrong format
frame += n
crc = crc16(frame).to_bytes(2,byteorder='big')
frame += crc
assert pytest.raises(ValueError,distantio.process,frame)