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######################################################################
#
# File: test/unit/stream/test_progress.py
#
# Copyright 2024 Backblaze Inc. All Rights Reserved.
#
# License https://www.backblaze.com/using_b2_code.html
#
######################################################################
import io
from unittest.mock import Mock
from apiver_deps import ReadingStreamWithProgress
def test_reading_stream_with_progress(tmp_path):
stream = io.BytesIO(b'1234567890')
progress_listener = Mock()
with ReadingStreamWithProgress(stream, progress_listener=progress_listener) as wrapped_stream:
assert wrapped_stream.read(1) == b'1'
assert wrapped_stream.read(2) == b'23'
assert wrapped_stream.read(3) == b'456'
assert progress_listener.bytes_completed.call_count == 3
assert wrapped_stream.bytes_completed == 6
assert not stream.closed
def test_reading_stream_with_progress__not_closing_wrapped_stream(tmp_path):
stream = io.BytesIO(b'1234567890')
progress_listener = Mock()
with ReadingStreamWithProgress(stream, progress_listener=progress_listener) as wrapped_stream:
assert wrapped_stream.read()
assert not stream.closed
def test_reading_stream_with_progress__closed_proxy(tmp_path):
"""
Test that the wrapped stream is closed when the original stream is closed.
This is important for Python 3.13+ to prevent:
'Exception ignored in: <b2sdk._internal.stream.progress.ReadingStreamWithProgress object at 0x748cf40d5180>'
messages.
"""
stream = io.BytesIO(b'1234567890')
progress_listener = Mock()
wrapped_stream = ReadingStreamWithProgress(stream, progress_listener=progress_listener)
assert not stream.closed
stream.close()
assert wrapped_stream.closed
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