def test_request_frame(self):
self.reset()
frame = meterbus.TelegramShort()
frame.header.cField.parts = [
meterbus.CONTROL_MASK_REQ_UD2 | meterbus.CONTROL_MASK_DIR_M2S
]
frame.header.aField.parts = [0]
meterbus.send_request_frame(self.master, req=frame)
self.assertEqual(self.slave.read(5), b"\x10\x5B\x00\x5B\x16")
def test_frame_crc(self):
frame = meterbus.TelegramShort(self.frame)
self.assertEqual(frame.check_crc(), True)
def test_frame_header_setter(self):
frame = meterbus.TelegramShort(self.frame)
hdr = meterbus.TelegramHeader()
frame.header = hdr
self.assertIs(frame.header, hdr)
def test_load_crc_error(self):
frame_data = list(self.frame)
frame_data[-2] = '\xFF'
with self.assertRaises(MBusFrameCRCError):
meterbus.TelegramShort(frame_data)
def test_load_bytes(self):
frame = meterbus.TelegramShort(self.frame_bytes)
frame_bytes = list(map(char2int, list(self.frame_bytes)))
self.assertEqual(list(frame), frame_bytes)
def test_load_crc_error(self):
frame_data = list(map(char2int, list(self.frame_bytes)))
frame_data[-2] = 255
with self.assertRaises(MBusFrameCRCError):
meterbus.TelegramShort(frame_data)