nomos-specs/da/kzg_rs/test_rs.py

19 lines
693 B
Python

from unittest import TestCase
from da.kzg_rs.common import BLS_MODULUS, ROOTS_OF_UNITY
from da.kzg_rs.poly import Polynomial
from da.kzg_rs.rs import encode, decode
class TestFFT(TestCase):
def test_encode_decode(self):
poly = Polynomial(list(range(10)), modulus=BLS_MODULUS)
encoded = encode(poly, 2, ROOTS_OF_UNITY)
# remove a few points, but enough so we can reconstruct
for i in [1, 3, 7]:
encoded[i] = None
decoded = decode(encoded, ROOTS_OF_UNITY, len(poly))
# self.assertEqual(poly, decoded)
for i in range(len(poly)):
self.assertEqual(poly.eval(ROOTS_OF_UNITY[i]), decoded.eval(ROOTS_OF_UNITY[i]))