"""Quick validation of the protocol module."""
import sys
sys.path.insert(0, "C:\\Users\\Administrator\\Documents\\fl_control\\mcp")

from protocol.sysex import nibble_encode, nibble_decode, encode_command, decode_command, SYSEX_ID

# Test 1: nibble roundtrip
for original in [b"Hello", b"", b"\x00\x7f", b'{"cmd":"ping"}']:
    encoded = nibble_encode(original)
    decoded = nibble_decode(encoded)
    assert decoded == original, f"Roundtrip failed for {original}"
print("PASS: nibble roundtrip")

# Test 2: encode/decode command
result = encode_command("ping", {"ts": 1})
assert result[0] == 0xF0 and result[1] == 0x7D and result[-1] == 0xF7
decoded = decode_command(result)
assert decoded["cmd"] == "ping"
assert decoded["params"] == {"ts": 1}
print("PASS: encode/decode command")

# Test 3: SYSEX_ID
assert SYSEX_ID == 0x7D
print("PASS: SYSEX_ID == 0x7D")

print("All unit tests passed!")