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# pylint: skip-file
from __future__ import absolute_import
import io
import platform
import pytest
from kafka.producer.buffer import MessageSetBuffer
from kafka.protocol.message import Message, MessageSet
def test_buffer_close():
records = MessageSetBuffer(io.BytesIO(), 100000)
orig_msg = Message(b'foobar')
records.append(1234, orig_msg)
records.close()
msgset = MessageSet.decode(records.buffer())
assert len(msgset) == 1
(offset, size, msg) = msgset[0]
assert offset == 1234
assert msg == orig_msg
# Closing again should work fine
records.close()
msgset = MessageSet.decode(records.buffer())
assert len(msgset) == 1
(offset, size, msg) = msgset[0]
assert offset == 1234
assert msg == orig_msg
@pytest.mark.parametrize('compression', [
'gzip',
'snappy',
pytest.mark.skipif(platform.python_implementation() == 'PyPy',
reason='python-lz4 crashes on older versions of pypy')('lz4'),
])
def test_compressed_buffer_close(compression):
records = MessageSetBuffer(io.BytesIO(), 100000, compression_type=compression)
orig_msg = Message(b'foobar')
records.append(1234, orig_msg)
records.close()
msgset = MessageSet.decode(records.buffer())
assert len(msgset) == 1
(offset, size, msg) = msgset[0]
assert offset == 0
assert msg.is_compressed()
msgset = msg.decompress()
(offset, size, msg) = msgset[0]
assert not msg.is_compressed()
assert offset == 1234
assert msg == orig_msg
# Closing again should work fine
records.close()
msgset = MessageSet.decode(records.buffer())
assert len(msgset) == 1
(offset, size, msg) = msgset[0]
assert offset == 0
assert msg.is_compressed()
msgset = msg.decompress()
(offset, size, msg) = msgset[0]
assert not msg.is_compressed()
assert offset == 1234
assert msg == orig_msg
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