def test_roundtrip(self):
for i in range(1000):
Isbn10.strip(Isbn10.protect(randint(0, 2 ** 32 - 1)))
def check(n, z):
print (n, z, Isbn10.protect(n))
assert Isbn10.protect(n) == z
def test_roundtrip(self):
for i in range(1000):
x = randint(0, 2 ** 32 - 1)
print (x)
Isbn10.strip(Isbn10.protect(x))
