def test_inverse_long(self):
fp27 = FF(3, pivot=[-1, -1, 0, 1])
for i in range(3):
for j in range(3):
for k in range(3):
if not (i == 0 and j == 0 and k == 0):
a = fp27.prune([i, j, k])
b = fp27.inv(a)
self.assertEqual(fp27.mult(a, b), [1])
def test_prune(self):
self.assertEqual([1, 2, 3], FF.prune([1, 2, 3, 0, 0]))
self.assertEqual([], FF.prune([]))
self.assertEqual([], FF.prune([0, 0, 0]))
self.assertEqual([1, 2, 3], FF.prune([1, 2, 3]))
self.assertEqual([1, 2, 3, 0, 1], FF.prune([1, 2, 3, 0, 1, 0, 0]))