def test_decode():
d = 10
gen = rs.generator(GF, d)
orig = [
224, 75, 253, 239, 175, 107, 19, 144, 42, 188,
236, 112, 150, 198, 198, 150, 38, 39, 6, 50, 23, 118, 71, 117, 210, 64,
]
msg = orig[:]
assert rs.syndrome(msg, gen) == [0] * gen.degree
index = len(msg) - 1
msg[index] = 0
synd = rs.syndrome(msg, gen)
assert synd == [64, 192, 93, 231, 52, 92, 228, 49, 83, 245]
indices = [2, 8, 15, 7, 0]
msg = orig[:]
for i in indices:
msg[i] = i
assert rs.decode(msg, gen) == orig[d:]
indices = [0, 1, 2, 23, 24, 25]
msg = orig[:]
for i in indices:
msg[i] = i
with pytest.raises(ValueError):
rs.decode(msg, gen)
with pytest.raises(ValueError):
rs.decode(range(len(msg)), gen)
def test_encode():
data = [0x56, 0x34, 0x12]
r = rs.encode(data, gen)
assert r == [0xD9, 0x78, 0xE6, 0x37] + data
msg = [236, 112, 150, 198, 198, 150, 38, 39, 6, 50, 23, 118, 71, 117, 210, 64]
f = rs.encode(msg, rs.generator(GF, 10))
assert f == [224, 75, 253, 239, 175, 107, 19, 144, 42, 188] + msg
def test_encode():
data = [0x56, 0x34, 0x12]
r = rs.encode(data, gen)
assert r == [0xd9, 0x78, 0xe6, 0x37] + data
msg = [
236, 112, 150, 198, 198, 150, 38, 39, 6, 50, 23, 118, 71, 117, 210, 64
]
f = rs.encode(msg, rs.generator(GF, 10))
assert f == [224, 75, 253, 239, 175, 107, 19, 144, 42, 188] + msg
def test_decode():
d = 10
gen = rs.generator(GF, d)
orig = [
224,
75,
253,
239,
175,
107,
19,
144,
42,
188,
236,
112,
150,
198,
198,
150,
38,
39,
6,
50,
23,
118,
71,
117,
210,
64,
]
msg = orig[:]
assert rs.syndrome(msg, gen) == [0] * gen.degree
index = len(msg) - 1
msg[index] = 0
synd = rs.syndrome(msg, gen)
assert synd == [64, 192, 93, 231, 52, 92, 228, 49, 83, 245]
indices = [2, 8, 15, 7, 0]
msg = orig[:]
for i in indices:
msg[i] = i
assert rs.decode(msg, gen) == orig[d:]
indices = [0, 1, 2, 23, 24, 25]
msg = orig[:]
for i in indices:
msg[i] = i
with pytest.raises(ValueError):
rs.decode(msg, gen)
with pytest.raises(ValueError):
rs.decode(range(len(msg)), gen)
from ecc import galois as g
from ecc import polynomial as p
from ecc import reed_solomon as rs
import pytest
GF = g.Field(reversed([1, 0, 0, 0, 1, 1, 1, 0, 1]), p=2)
gen = rs.generator(GF, 4)
def test_gen():
assert gen == p.Polynomial(GF, [0x40, 0x78, 0x36, 0x0f, 1])
def test_encode():
data = [0x56, 0x34, 0x12]
r = rs.encode(data, gen)
assert r == [0xd9, 0x78, 0xe6, 0x37] + data
msg = [
236, 112, 150, 198, 198, 150, 38, 39, 6, 50, 23, 118, 71, 117, 210, 64
]
f = rs.encode(msg, rs.generator(GF, 10))
assert f == [224, 75, 253, 239, 175, 107, 19, 144, 42, 188] + msg
def test_decode():
d = 10
gen = rs.generator(GF, d)
orig = [
224, 75, 253, 239, 175, 107, 19, 144, 42, 188,
236, 112, 150, 198, 198, 150, 38, 39, 6, 50, 23, 118, 71, 117, 210, 64,
from ecc import galois as g
from ecc import polynomial as p
from ecc import reed_solomon as rs
import pytest
GF = g.Field(reversed([1, 0, 0, 0, 1, 1, 1, 0, 1]), p=2)
gen = rs.generator(GF, 4)
def test_gen():
assert gen == p.Polynomial(GF, [0x40, 0x78, 0x36, 0x0F, 1])
def test_encode():
data = [0x56, 0x34, 0x12]
r = rs.encode(data, gen)
assert r == [0xD9, 0x78, 0xE6, 0x37] + data
msg = [236, 112, 150, 198, 198, 150, 38, 39, 6, 50, 23, 118, 71, 117, 210, 64]
f = rs.encode(msg, rs.generator(GF, 10))
assert f == [224, 75, 253, 239, 175, 107, 19, 144, 42, 188] + msg
def test_decode():
d = 10
gen = rs.generator(GF, d)
orig = [
224,
75,
253,
239,
