Generating byte data for Compact SeedQR test vectors

test_compact_seedqr.py

import os
from embit import bip39
from embit.wordlists.bip39 import WORDLIST
from seedsigner.models.decode_qr import DecodeQR
from seedsigner.models.encode_qr import EncodeQR
from seedsigner.models.qr_type import QRType
from seedsigner.helpers.qr import QR

seed_bytes = b''

# Randomly generate byte data until we get one with our target "problem" byte(s)
while b'\r' not in seed_bytes:
    seed_bytes = os.urandom(16)
mnemonic = bip39.mnemonic_from_bytes(seed_bytes).split()

encoder = EncodeQR(seed_phrase=mnemonic, qr_type=QRType.SEED__COMPACTSEEDQR)

qr = QR()
seed_qr = qr.qrimage(data=encoder.next_part(), background_color="#fff")
seed_qr.save("/Users/kdmukai/Downloads/vector8_compact_12word.png")
decoder = DecodeQR()
decoder.add_image(seed_qr)

assert(mnemonic == decoder.get_seed_phrase())

# Output in each format in the SeedQR documentation
print(" ".join(mnemonic))
print("".join(["{:04}".format(WORDLIST.index(w)) for w in mnemonic]))
print("".join([X for X in "".join(["{:0>8}".format(bin(X)[2:])for X in seed_bytes])]))
print(seed_bytes)