mirror of
https://github.com/psycopg/psycopg2.git
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389f6c08d9
For library end users, there is no need to install tests alongside the package itself. This keeps the tests available for development without adding extra packages to user's site-packages directory. Reduces the size of the installed package. Avoids accidental execution of test code by an installed package.
110 lines
3.1 KiB
Python
Executable File
110 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 Daniele Varrazzo <daniele.varrazzo@gmail.com>
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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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from __future__ import print_function
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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("test suite %s\n" % test.__name__)
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for i in range(1, opt.nruns + 1):
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sys.stdout.write("test suite run %d of %d\n" % (i, opt.nruns))
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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('debug-%02d.txt' % (opt.nruns - 1)).readlines()
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f2 = open('debug-%02d.txt' % opt.nruns).readlines()
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for line in difflib.unified_diff(f1, f2,
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"run %d" % (opt.nruns - 1), "run %d" % 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('objs-%02d.txt' % (opt.nruns - 1)).readlines()
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f2 = open('objs-%02d.txt' % opt.nruns).readlines()
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for line in difflib.unified_diff(f1, f2,
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"run %d" % (opt.nruns - 1), "run %d" % 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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import optparse
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parser = optparse.OptionParser(description=__doc__)
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parser.add_option('--nruns', type='int', metavar="N", default=3,
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help="number of test suite runs [default: %default]")
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parser.add_option('--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_option('--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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opt, args = parser.parse_args()
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return opt
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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("debug-%02d.txt" % i, "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("objs-%02d.txt" % i, "w"))
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if __name__ == '__main__':
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sys.exit(main())
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