def test_nonunit_stride_to_python():
assert np.all(m.diagonal(ref) == ref.diagonal())
assert np.all(m.diagonal_1(ref) == ref.diagonal(1))
for i in range(-5, 7):
assert np.all(m.diagonal_n(ref, i) == ref.diagonal(i)), "m.diagonal_n({})".format(i)
assert np.all(m.block(ref, 2, 1, 3, 3) == ref[2:5, 1:4])
assert np.all(m.block(ref, 1, 4, 4, 2) == ref[1:, 4:])
assert np.all(m.block(ref, 1, 4, 3, 2) == ref[1:4, 4:])
def test_nonunit_stride_to_python():
assert np.all(m.diagonal(ref) == ref.diagonal())
assert np.all(m.diagonal_1(ref) == ref.diagonal(1))
for i in range(-5, 7):
assert np.all(m.diagonal_n(ref, i) == ref.diagonal(i)), "m.diagonal_n({})".format(i)
assert np.all(m.block(ref, 2, 1, 3, 3) == ref[2:5, 1:4])
assert np.all(m.block(ref, 1, 4, 4, 2) == ref[1:, 4:])
assert np.all(m.block(ref, 1, 4, 3, 2) == ref[1:4, 4:])