def test_tag_inventory():
transport = MockTransport(bytearray.fromhex(RESP_TAGS_1))
command = ReaderCommand(G2_TAG_INVENTORY)
runner = CommandRunner(transport)
frame = G2InventoryResponseFrame(runner.run(command))
assert frame.result_status == 3
assert frame.resp_cmd == 0x01
assert frame.reader_addr == 0
assert frame.num_tags == 1
tag = next(frame.get_tag())
assert tag.epc == bytearray.fromhex('000000000000000000000313')
assert tag.rssi is None
assert tag.antenna_num == 1
def test_reader_info_frame():
transport = MockTransport(bytearray.fromhex(RESP_READER_INFO))
get_reader_info = ReaderCommand(CF_GET_READER_INFO)
runner = CommandRunner(transport)
reader_info = ReaderInfoFrame(runner.run(get_reader_info))
assert reader_info.result_status == 0
assert reader_info.resp_cmd == 0x21
assert reader_info.reader_addr == 0
assert reader_info.data == bytearray.fromhex('00160c034e001e0a01000000')
assert reader_info.firmware_version == bytearray([0, 22])
# 0x4E = 0b 01 00 1110 Max
# 0x00 = 0b0 Min
assert reader_info.frequency_band == ReaderFrequencyBand.EU
assert reader_info.get_max_frequency() == 865.1 + 0.2 * 14
assert reader_info.get_min_frequency() == 865.1
def test_multiple_tags():
transport = MockTransport(bytearray.fromhex(RESP_MULTIPLE_TAGS))
command = ReaderCommand(G2_TAG_INVENTORY)
runner = CommandRunner(transport)
response = G2InventoryResponse(runner.run(command))
frame_generator = response.get_frame()
frame = next(frame_generator)
assert frame.result_status == 3
assert frame.resp_cmd == 0x01
assert frame.reader_addr == 0
assert frame.num_tags == 2
tag_generator = frame.get_tag()
tag1 = next(tag_generator)
assert tag1.epc == bytearray.fromhex('000000000000000000000313')
assert tag1.rssi is None
assert tag1.antenna_num == 1
tag2 = next(tag_generator)
assert tag2.epc == bytearray.fromhex('000000000000000000000314')
assert tag2.rssi is None
assert tag2.antenna_num == 1
def test_reader_frame_bad_checksum():
transport = MockTransport(bytearray.fromhex(RESP_TAGS_BAD_CHECKSUM))
get_reader_info = ReaderCommand(G2_TAG_INVENTORY)
runner = CommandRunner(transport)
with pytest.raises(ValueError):
assert ReaderResponseFrame(runner.run(get_reader_info))