circuitpython/tests/internal_bench/bytebuf-2-join_map_bytes.py

# Doing some operation on bytearray
# Pretty weird way - map bytearray thru function, but make sure that
# function return bytes of size 1, then join them together. Surely,
# this is slowest way to do it.
import bench


def test(num):
    for i in iter(range(num // 10000)):
        ba = bytearray(b"\0" * 1000)
        ba2 = b"".join(map(lambda x: bytes([x + 1]), ba))


bench.run(test)