44 lines
1.6 KiB
Python
44 lines
1.6 KiB
Python
"""Wire vectors shared with Android and the native TMS2812 host test."""
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import pytest
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from protocan import tms_terminal as tms
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def test_ping_and_poke_vectors():
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assert tms.ping(10).hex() == "0a3800010000f0b4"
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raw = tms.request(10, 0x12345678, 0xABCD)
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assert raw[:10].hex() == "0a3978563412cdab0000"
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assert tms.crc16_modbus(raw) == 0
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def test_test_all_vector():
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digits = bytes.fromhex("810204080920102040800304")
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raw = tms.build_test_request(7, 25, 18, digits)
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assert raw[:18].hex() == "074219001200810204080920102040800304"
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assert len(raw) == 20 and tms.crc16_modbus(raw) == 0
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def test_response_accepts_only_missing_reserved_bytes():
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raw = bytes.fromhex("0a3865a50000af9b0000")
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for size in (8, 9, 10):
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assert tms.decode_reply(raw[:size], 10, 56) == 0xA565
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for invalid in (raw[:7], raw + b"\0", raw[:2] + b"\0" + raw[3:]):
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with pytest.raises(ValueError):
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tms.decode_reply(invalid, 10, 56)
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with pytest.raises(ValueError):
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tms.decode_reply(raw, 11, 56)
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@pytest.mark.parametrize("args", [(256, 0, None), (1, -1, None), (1, 2**32, None), (1, 0, -1), (1, 0, 65536)])
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def test_rejects_out_of_range_before_native_conversion(args):
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with pytest.raises(ValueError):
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tms.request(*args)
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def test_uart_response_ignores_noise_and_preliminary_ack():
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response = bytes.fromhex("0a3865a50000af9b0000")
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ack = tms.build_fixed_request(10, 56, b"")
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for prefix in (b"", ack, ack + b"\0\0"):
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assert tms.memory_response(b"noise" + prefix + response, 10, 56) == response
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assert tms.memory_response(response, 11, 56) is None
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assert tms.memory_response(response[:7], 10, 56) is None
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