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glances/tests/test_memoryleak.py
2024-12-30 11:57:11 +01:00

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Python
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#!/usr/bin/env python
#
# Glances - An eye on your system
#
# SPDX-FileCopyrightText: 2024 Nicolas Hennion <nicolas@nicolargo.com>
#
# SPDX-License-Identifier: LGPL-3.0-only
#
"""Glances unitary tests suite for Glances memory leak."""
import time
import tracemalloc
def test_memoryleak_no_history(glances_stats_no_history, logger):
"""
Test Glances memory leak.
"""
tracemalloc.start()
# First iterations just to init the stats and fill the memory
logger.info('Please wait during memory leak test initialisation')
iteration = 3
for _ in range(iteration):
glances_stats_no_history.update()
time.sleep(1)
# Then iteration to measure memory leak
logger.info('Please wait during memory leak test')
iteration = 10
snapshot_begin = tracemalloc.take_snapshot()
for _ in range(iteration):
glances_stats_no_history.update()
time.sleep(1)
snapshot_end = tracemalloc.take_snapshot()
snapshot_diff = snapshot_end.compare_to(snapshot_begin, 'filename')
memory_leak = sum([s.size_diff for s in snapshot_diff]) // iteration
logger.info(f'Memory consume per iteration: {memory_leak} bytes')
assert memory_leak < 15000, f'Memory leak: {memory_leak} bytes'