bug: python's test doesn't use reader correctly

[Xuanwo]

Describe the bug

opendal/bindings/python/tests/test_read.py

Lines 47 to 59 in f43ab18

	with operator.open(filename, "rb") as reader:
	assert reader.readable()
	assert not reader.writable()
	assert not reader.closed
	read_content = reader.read()
	assert read_content is not None
	assert read_content == content
	with operator.open(filename, "rb") as reader:
	read_content = reader.read(size + 1)
	assert read_content is not None
	assert read_content == content

There is no guarantee that read will always fill the read size. Users should keep calling read until EOF.

Steps to Reproduce

https://github.com/apache/opendal/actions/runs/10321553970/job/28574789953?pr=4989

The content is short than expected.

Expected Behavior

This test should pass stably.

Additional Context

No response

Are you willing to submit a PR to fix this bug?

• Yes, I would like to submit a PR.

[Bicheka]

@Xuanwo I tried to fix it checking by chunks check PR

[shaikhmudassir0]

@Xuanwo @Bicheka Can you please help me to regenerate the bug?

[Xuanwo]

@Xuanwo @Bicheka Can you please help me to regenerate the bug?

Hi, there is no reliable way to reproduce this bug. It occurs when the storage fails to provide enough buffers.