/usr/lib/python3.7/test/test_grp.py is in libpython3.7-testsuite 3.7.0~b3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | """Test script for the grp module."""
import unittest
from test import support
grp = support.import_module('grp')
class GroupDatabaseTestCase(unittest.TestCase):
def check_value(self, value):
# check that a grp tuple has the entries and
# attributes promised by the docs
self.assertEqual(len(value), 4)
self.assertEqual(value[0], value.gr_name)
self.assertIsInstance(value.gr_name, str)
self.assertEqual(value[1], value.gr_passwd)
self.assertIsInstance(value.gr_passwd, str)
self.assertEqual(value[2], value.gr_gid)
self.assertIsInstance(value.gr_gid, int)
self.assertEqual(value[3], value.gr_mem)
self.assertIsInstance(value.gr_mem, list)
def test_values(self):
entries = grp.getgrall()
for e in entries:
self.check_value(e)
def test_values_extended(self):
entries = grp.getgrall()
if len(entries) > 1000: # Huge group file (NIS?) -- skip the rest
self.skipTest('huge group file, extended test skipped')
for e in entries:
e2 = grp.getgrgid(e.gr_gid)
self.check_value(e2)
self.assertEqual(e2.gr_gid, e.gr_gid)
name = e.gr_name
if name.startswith('+') or name.startswith('-'):
# NIS-related entry
continue
e2 = grp.getgrnam(name)
self.check_value(e2)
# There are instances where getgrall() returns group names in
# lowercase while getgrgid() returns proper casing.
# Discovered on Ubuntu 5.04 (custom).
self.assertEqual(e2.gr_name.lower(), name.lower())
def test_errors(self):
self.assertRaises(TypeError, grp.getgrgid)
self.assertRaises(TypeError, grp.getgrnam)
self.assertRaises(TypeError, grp.getgrall, 42)
# embedded null character
self.assertRaises(ValueError, grp.getgrnam, 'a\x00b')
# try to get some errors
bynames = {}
bygids = {}
for (n, p, g, mem) in grp.getgrall():
if not n or n == '+':
continue # skip NIS entries etc.
bynames[n] = g
bygids[g] = n
allnames = list(bynames.keys())
namei = 0
fakename = allnames[namei]
while fakename in bynames:
chars = list(fakename)
for i in range(len(chars)):
if chars[i] == 'z':
chars[i] = 'A'
break
elif chars[i] == 'Z':
continue
else:
chars[i] = chr(ord(chars[i]) + 1)
break
else:
namei = namei + 1
try:
fakename = allnames[namei]
except IndexError:
# should never happen... if so, just forget it
break
fakename = ''.join(chars)
self.assertRaises(KeyError, grp.getgrnam, fakename)
# Choose a non-existent gid.
fakegid = 4127
while fakegid in bygids:
fakegid = (fakegid * 3) % 0x10000
self.assertRaises(KeyError, grp.getgrgid, fakegid)
def test_noninteger_gid(self):
entries = grp.getgrall()
if not entries:
self.skipTest('no groups')
# Choose an existent gid.
gid = entries[0][2]
self.assertWarns(DeprecationWarning, grp.getgrgid, float(gid))
self.assertWarns(DeprecationWarning, grp.getgrgid, str(gid))
if __name__ == "__main__":
unittest.main()
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