circuitpython/tests/basics/io_buffered_writer.py
Damien George 9accb7dd44 tests/basics: Add more tests for hashing of various types.
Signed-off-by: Damien George <damien@micropython.org>
2023-05-19 12:35:12 +10:00

31 lines
602 B
Python

import uio as io
try:
io.BytesIO
io.BufferedWriter
except AttributeError:
print('SKIP')
raise SystemExit
bts = io.BytesIO()
buf = io.BufferedWriter(bts, 8)
buf.write(b"foobar")
print(bts.getvalue())
buf.write(b"foobar")
# CPython has different flushing policy, so value below is different
print(bts.getvalue())
buf.flush()
print(bts.getvalue())
buf.flush()
print(bts.getvalue())
# special case when alloc is a factor of total buffer length
bts = io.BytesIO()
buf = io.BufferedWriter(bts, 1)
buf.write(b"foo")
print(bts.getvalue())
# hashing a BufferedWriter
print(type(hash(buf)))