def test_request(self):
"""Test request."""
response = Message.message(0x11, payload=[chr(10)])
self.serial.UART_request.return_value = \
Package.package(0x01, response).stream
recv = self.channel.request(Message.message(0x01, payload=[chr(1)]),
timeout=1)
self.assertEqual(recv.cmd, response.cmd)
self.assertEqual(recv.payload, response.payload)
def test_create_group_of_variables(self):
"""Test create group."""
resp_p = Package.package(0, Message.message(0xE0))
send_p = Package.package(1, Message.message(0x30, [chr(1), chr(3)]))
self.serial.UART_request.return_value = resp_p.stream
response = self.bsmp.create_group_of_variables([1, 3], timeout=100)
self.serial.UART_request.assert_called_once_with(send_p.stream,
timeout=100)
self.assertEqual(response, (0xE0, None))
def test_remove_all_groups_of_variables(self):
"""Test remove_all_groups_of_variables."""
resp_p = Package.package(0, Message.message(0xE0))
send_p = Package.package(1, Message.message(0x32))
self.serial.UART_request.return_value = resp_p.stream
response = self.bsmp.remove_all_groups_of_variables(timeout=100)
self.serial.UART_request.assert_called_once_with(send_p.stream,
timeout=100)
self.assertEqual(response, (0xE0, None))
def test_execute_function(self):
"""Test execute_function."""
resp_p = Package.package(0, Message.message(0x51, payload=[chr(0)]))
send_load = [chr(0x00)] + list(map(chr, struct.pack('<f', 1.5)))
send_p = Package.package(1, Message.message(0x50, payload=send_load))
self.serial.UART_request.return_value = resp_p.stream
response = self.bsmp.execute_function(0, 1.5)
self.serial.UART_request.assert_called_once_with(send_p.stream,
timeout=100)
self.assertEqual(response, (0xE0, 0))
def test_read_calls_serial_method(self):
"""Test UART_read is called."""
response = Message.message(0x11, payload=[chr(10)])
self.serial.UART_read.return_value = \
Package.package(0x01, response).stream
self.channel.read()
self.serial.UART_read.assert_called_once()
def test_read_int2_variable(self):
"""Test read_variable."""
load = list(map(chr, struct.pack('<h', 1020)))
pck = Package.package(0, Message.message(0x11, payload=load))
self.serial.UART_request.return_value = pck.stream
response = self.bsmp.read_variable(0, 100)
self.assertEqual(response, (0xE0, 1020))
def test_query_group_of_variables_fail(self):
"""Test query_group_of_variables return None when cmd is unexpected."""
p = Package.package(0, Message.message(0xE9))
self.serial.UART_request.return_value = p.stream
# with self.assertRaises(TypeError):
with self.assertRaises(SerialAnomResp):
self.bsmp.query_group_of_variables(1, timeout=100)
def test_write_calls_serial_method(self):
"""Test write calls UART_write."""
message = Message.message(0x10, payload=[chr(1)])
expected_stream = \
Package.package(self.channel.address, message).stream
self.channel.write(message, 1000)
self.serial.UART_write.assert_called_with(expected_stream,
timeout=1000)
def test_read(self):
"""Test read method."""
response = Message.message(0x11, payload=[chr(10)])
self.serial.UART_read.return_value = \
Package.package(0x01, response).stream
recv = self.channel.read()
self.assertEqual(recv.cmd, response.cmd)
self.assertEqual(recv.payload, response.payload)
def test_package(self):
"""Test constructor."""
address = 1
m = Message.message(0x00)
p = Package.package(address=address, message=m)
self.assertEqual(p.address, address)
self.assertEqual(p.message, m)
def test_remove_all_groups_of_variables_error(self):
"""Test remove_all_groups_of_variables."""
resp_p = Package.package(0, Message.message(0xE8))
self.serial.UART_request.return_value = resp_p.stream
with self.assertRaises(TypeError):
self.bsmp.remove_all_groups_of_variables()
response = self.bsmp.remove_all_groups_of_variables(timeout=100)
self.assertEqual(response, (0xE8, None))
def test_create_group_of_variables_error(self):
"""Test create_group_of_variables."""
resp_p = Package.package(0, Message.message(0xE8))
self.serial.UART_request.return_value = resp_p.stream
with self.assertRaises(TypeError):
self.bsmp.query_group_of_variables(1)
response = self.bsmp.create_group_of_variables([1, 3], timeout=100)
self.assertEqual(response, (0xE8, None))
def _test_query_group_of_variables_error(self):
"""Test query_group_of_variables return error code."""
p = Package.package(0, Message.message(0xE3))
self.serial.UART_read.return_value = p.stream
with self.assertRaises(TypeError):
self.bsmp.query_group_of_variables(1)
response = self.bsmp.query_group_of_variables(1, timeout=100)
self.assertEqual(response, (0xE3, None))
def test_read_float_variable(self):
"""Test read_variable."""
load = list(map(chr, struct.pack('<f', 50.52)))
pck = Package.package(0, Message.message(0x11, payload=load))
self.serial.UART_request.return_value = pck.stream
response = self.bsmp.read_variable(1, 100)
self.assertEqual(response[0], 0xE0)
self.assertAlmostEqual(response[1], 50.52, places=2)
def test_read_group_variable_fail(self):
"""Test read variable returns error code."""
pck = Package.package(0, Message.message(0xFF))
self.serial.UART_request.return_value = pck.stream
with self.assertRaises(TypeError):
# forget pylint: not having required timeout arg is the test
self.bsmp.query_group_of_variables(1)
with self.assertRaises(SerialAnomResp):
self.bsmp.read_group_of_variables(0, timeout=100)
def test_message_with_load(self):
"""Test constructor with load."""
m = Message.message(cmd=0x10, payload=[
1,
])
self.assertEqual(m.cmd, 0x10)
self.assertEqual(m.payload, [
1,
])
def test_query_group_of_variables(self):
"""Test query_group_of_variables."""
p = Package.package(
0, Message.message(0x07, payload=[chr(0),
chr(1),
chr(2),
chr(3)]))
self.serial.UART_request.return_value = p.stream
response = self.bsmp.query_group_of_variables(1, timeout=100)
self.assertEqual(response, (0xE0, [0, 1, 2, 3]))
def test_read_string_variable(self):
"""Test read_variable."""
load = ['t', 'e', 's', 't', 'e']
while len(load) < 64:
load.append(chr(0))
expected_value = [c.encode() for c in load]
pck = Package.package(0, Message.message(0x11, payload=load))
self.serial.UART_request.return_value = pck.stream
response = self.bsmp.read_variable(3, 100)
self.assertEqual(response, (0xE0, expected_value))
def test_read_arrfloat_variable(self):
"""Test read_variable."""
values = [1.1234567, 2.7654321]
load = list(map(chr, struct.pack('<f', 1.1234567)))
load.extend(list(map(chr, struct.pack('<f', 2.7654321))))
pck = Package.package(0, Message.message(0x11, payload=load))
self.serial.UART_request.return_value = pck.stream
response = self.bsmp.read_variable(2, 100)
self.assertEqual(response[0], 0xE0)
for i, value in enumerate(response[1]):
self.assertAlmostEqual(value, values[i], places=7)
def test_conv_to_stream(self):
"""Test conversion from message to stream."""
# Example in 3.8.2 of BSMP protocol document
curve_id = chr(0x07)
blk_n = [chr(0x40), chr(0x00)]
blk_load = [chr(0xdd) for _ in range(16384)]
load = [curve_id] + blk_n + blk_load
m = Message.message(cmd=0x41, payload=load)
expected_stream = [chr(0x41), chr(0x40), chr(0x03)] + load
self.assertEqual(m.stream, expected_stream)
def test_read_group_of_variables(self):
"""Test read_group_of_variables."""
ld_string = ['t', 'e', 's', 't', 'e']
for _ in range(64 - len(ld_string)):
ld_string.append(chr(0))
val_string = [c.encode() for c in ld_string]
values = [1020, 40.7654321, [1.7654321, 0.0123456], val_string]
load = list(map(chr, struct.pack('<h', 1020)))
load.extend(list(map(chr, struct.pack('<f', 40.7654321))))
load.extend(list(map(chr, struct.pack('<f', 1.7654321))))
load.extend(list(map(chr, struct.pack('<f', 0.0123456))))
load.extend(ld_string)
pck = Package.package(0, Message.message(0x13, payload=load))
self.serial.UART_request.return_value = pck.stream
response = self.bsmp.read_group_of_variables(0, timeout=100)
self.assertEqual(response[0], 0xE0)
self.assertEqual(response[1][0], values[0])
self.assertAlmostEqual(response[1][1], values[1], places=5)
self.assertAlmostEqual(response[1][2][0], values[2][0])
self.assertAlmostEqual(response[1][2][1], values[2][1])
self.assertEqual(response[1][3], values[3])
def test_read_variable_error(self):
"""Test read variable returns error code."""
pck = Package.package(0, Message.message(0xE3))
self.serial.UART_request.return_value = pck.stream
response = self.bsmp.read_variable(1, 100)
self.assertEqual(response, (0xE3, None))
def test_message_with_extraneous_load(self):
"""Test constructor with loads that are not list."""
loads = [1, 'string', (1, 2, 3), 63.7]
for load in loads:
with self.assertRaises(TypeError):
Message.message(cmd=0x10, payload=load)
def test_read_variable_failure(self):
"""Test read variable returns error code."""
pck = Package.package(0, Message.message(0xFF))
self.serial.UART_request.return_value = pck.stream
with self.assertRaises(SerialAnomResp):
self.bsmp.read_variable(1, 100)
def test_request_fail(self):
"""Test exception is raised when serial fails."""
self.serial.UART_request.return_value = None
with self.assertRaises(SerialError):
self.channel.request(Message.message(0x10, payload=[chr(10)]))
def test_remove_all_groups_of_variables_fail(self):
"""Test remove_all_groups_of_variables."""
resp_p = Package.package(0, Message.message(0x11))
self.serial.UART_request.return_value = resp_p.stream
with self.assertRaises(SerialAnomResp):
self.bsmp.remove_all_groups_of_variables(timeout=100)
def test_message_with_no_load(self):
"""Test constructor with no load."""
m = Message.message(cmd=0x00)
self.assertEqual(m.cmd, 0x00)
self.assertEqual(m.payload, [])
def test_create_group_of_variables_fail(self):
"""Test create_group_of_variables."""
resp_p = Package.package(0, Message.message(0xFF))
self.serial.UART_request.return_value = resp_p.stream
with self.assertRaises(SerialAnomResp):
self.bsmp.create_group_of_variables([1, 3], timeout=100)
def test_read_group_variable_error(self):
"""Test read variable returns error code."""
p = Package.package(0, Message.message(0xE3))
self.serial.UART_request.return_value = p.stream
response = self.bsmp.read_group_of_variables(0, timeout=100)
self.assertEqual(response, (0xE3, None))
def test_message_with_big_load(self):
"""Test constructor with load bigger than 65535."""
load = [0 for _ in range(65536)]
with self.assertRaises(ValueError):
Message.message(cmd=0x10, payload=load)