52 lines
1.4 KiB
Python
52 lines
1.4 KiB
Python
import gc
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import os
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import platform
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import psutil
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import pytest
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from pyo3_pytests.buf_and_str import BytesExtractor
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PYPY = platform.python_implementation() == "PyPy"
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@pytest.mark.skipif(
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PYPY,
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reason="PyPy has a segfault bug around this area."
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"See https://github.com/PyO3/pyo3/issues/589 for detail.",
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)
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def test_pybuffer_doesnot_leak_memory():
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N = 10000
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extractor = BytesExtractor()
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process = psutil.Process(os.getpid())
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def memory_diff(f):
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before = process.memory_info().rss
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gc.collect() # Trigger Garbage collection
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for _ in range(N):
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f()
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gc.collect() # Trigger Garbage collection
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after = process.memory_info().rss
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return after - before
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message_b = b'\\(-"-;) Praying that memory leak would not happen..'
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message_s = '\\(-"-;) Praying that memory leak would not happen..'
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message_surrogate = '\\(-"-;) Praying that memory leak would not happen.. \ud800'
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def from_bytes():
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extractor.from_bytes(message_b)
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def from_str():
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extractor.from_str(message_s)
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def from_str_lossy():
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extractor.from_str_lossy(message_surrogate)
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# Running the memory_diff to warm-up the garbage collector
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memory_diff(from_bytes)
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memory_diff(from_str)
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memory_diff(from_str_lossy)
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assert memory_diff(from_bytes) == 0
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assert memory_diff(from_str) == 0
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assert memory_diff(from_str_lossy) == 0
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