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ag -l Copyright | xargs sed -i \
"s/\(.*copyright (C) [0-9]\+\)\(-[0-9]\+\)\?\(.*Psycopg Team.*\)/\1-$(date +%Y)\3/I"
108 lines
3.1 KiB
Python
Executable File
108 lines
3.1 KiB
Python
Executable File
#!/usr/bin/env python
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"""Detect reference leaks after several unit test runs.
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The script runs the unit test and counts the objects alive after the run. If
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the object count differs between the last two runs, a report is printed and the
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script exits with error 1.
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"""
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# Copyright (C) 2011-2019 Daniele Varrazzo <daniele.varrazzo@gmail.com>
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# Copyright (C) 2020-2021 The Psycopg Team
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#
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# psycopg2 is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# psycopg2 is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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# License for more details.
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import argparse
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import gc
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import sys
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import difflib
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import unittest
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from pprint import pprint
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from collections import defaultdict
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def main():
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opt = parse_args()
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import tests
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test = tests
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if opt.suite:
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test = getattr(test, opt.suite)
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sys.stdout.write(f"test suite {test.__name__}\n")
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for i in range(1, opt.nruns + 1):
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sys.stdout.write(f"test suite run {i} of {opt.nruns}\n")
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runner = unittest.TextTestRunner()
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runner.run(test.test_suite())
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dump(i, opt)
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f1 = open(f'debug-{(opt.nruns - 1):02}.txt').readlines()
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f2 = open(f'debug-{opt.nruns:02}.txt').readlines()
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for line in difflib.unified_diff(f1, f2,
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f"run {opt.nruns - 1}", f"run {opt.nruns}"):
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sys.stdout.write(line)
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rv = f1 != f2 and 1 or 0
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if opt.objs:
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f1 = open(f'objs-{(opt.nruns - 1):02}.txt').readlines()
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f2 = open(f'objs-{opt.nruns:02}.txt').readlines()
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for line in difflib.unified_diff(f1, f2,
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f"run {opt.nruns - 1}", f"run {opt.nruns}"):
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sys.stdout.write(line)
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return rv
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def parse_args():
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument('--nruns', type=int, metavar="N", default=3,
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help="number of test suite runs [default: %(default)d]")
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parser.add_argument('--suite', metavar="NAME",
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help="the test suite to run (e.g. 'test_cursor'). [default: all]")
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parser.add_argument('--objs', metavar="TYPE",
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help="in case of leaks, print a report of object TYPE "
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"(support still incomplete)")
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return parser.parse_args()
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def dump(i, opt):
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gc.collect()
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objs = gc.get_objects()
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c = defaultdict(int)
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for o in objs:
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c[type(o)] += 1
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pprint(
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sorted(((v, str(k)) for k, v in c.items()), reverse=True),
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stream=open(f"debug-{i:02}.txt", "w"))
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if opt.objs:
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co = []
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t = getattr(__builtins__, opt.objs)
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for o in objs:
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if type(o) is t:
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co.append(o)
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# TODO: very incomplete
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if t is dict:
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co.sort(key=lambda d: d.items())
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else:
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co.sort()
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pprint(co, stream=open(f"objs-{i:02}.txt", "w"))
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if __name__ == '__main__':
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sys.exit(main())
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