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

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# 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)