def test_periodic():
x = np.arange(64).reshape((8, 8))
d = da.from_array(x, chunks=(4, 4))
e = periodic(d, axis=0, depth=2)
assert e.shape[0] == d.shape[0] + 4
assert e.shape[1] == d.shape[1]
assert_eq(e[1, :], d[-1, :])
assert_eq(e[0, :], d[-2, :])
def test_periodic():
x = np.arange(64).reshape((8, 8))
d = da.from_array(x, chunks=(4, 4))
e = periodic(d, axis=0, depth=2)
assert e.shape[0] == d.shape[0] + 4
assert e.shape[1] == d.shape[1]
assert_eq(e[1, :], d[-1, :])
assert_eq(e[0, :], d[-2, :])
