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Issue #18174: "python -m test --huntrleaks ..." now also checks for leak of

Browse source 
file descriptors. Patch written by Richard Oudkerk.
This commit is contained in:
Victor Stinner 2015-10-03 00:20:56 +02:00
parent 6661d885a3
commit 076fc872bc
3 changed files with 94 additions and 19 deletions
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63
Lib/test/test_regrtest.py
View file

@ -383,27 +383,32 @@ class BaseTestCase(unittest.TestCase):
self.assertTrue(0 <= randseed <= 10000000, randseed)
return randseed
def run_command(self, args, input=None, exitcode=0):
def run_command(self, args, input=None, exitcode=0, **kw):
if not input:
input = ''
if 'stderr' not in kw:
kw['stderr'] = subprocess.PIPE
proc = subprocess.run(args,
universal_newlines=True,
input=input,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
**kw)
if proc.returncode != exitcode:
self.fail("Command %s failed with exit code %s\n"
"\n"
"stdout:\n"
"---\n"
"%s\n"
"---\n"
"\n"
"stderr:\n"
"---\n"
"%s"
"---\n"
% (str(args), proc.returncode, proc.stdout, proc.stderr))
msg = ("Command %s failed with exit code %s\n"
"\n"
"stdout:\n"
"---\n"
"%s\n"
"---\n"
% (str(args), proc.returncode, proc.stdout))
if proc.stderr:
msg += ("\n"
"stderr:\n"
"---\n"
"%s"
"---\n"
% proc.stderr)
self.fail(msg)
return proc
@ -637,6 +642,36 @@ class ArgsTestCase(BaseTestCase):
output = self.run_tests('--forever', test, exitcode=1)
self.check_executed_tests(output, [test]*3, failed=test)
def test_huntrleaks_fd_leak(self):
# test --huntrleaks for file descriptor leak
code = textwrap.dedent("""
import os
import unittest
class FDLeakTest(unittest.TestCase):
def test_leak(self):
fd = os.open(__file__, os.O_RDONLY)
# bug: never cloes the file descriptor
""")
test = self.create_test(code=code)
filename = 'reflog.txt'
self.addCleanup(support.unlink, filename)
output = self.run_tests('--huntrleaks', '3:3:', test,
exitcode=1,
stderr=subprocess.STDOUT)
self.check_executed_tests(output, [test], failed=test)
line = 'beginning 6 repetitions\n123456\n......\n'
self.check_line(output, re.escape(line))
line2 = '%s leaked [1, 1, 1] file descriptors, sum=3\n' % test
self.check_line(output, re.escape(line2))
with open(filename) as fp:
reflog = fp.read()
self.assertEqual(reflog, line2)
if __name__ == '__main__':
unittest.main()