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109 lines
3.5 KiB
109 lines
3.5 KiB
4 months ago
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"""Test script for the grp module."""
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import unittest
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from test import support
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grp = support.import_module('grp')
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class GroupDatabaseTestCase(unittest.TestCase):
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def check_value(self, value):
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# check that a grp tuple has the entries and
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# attributes promised by the docs
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self.assertEqual(len(value), 4)
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self.assertEqual(value[0], value.gr_name)
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self.assertIsInstance(value.gr_name, str)
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self.assertEqual(value[1], value.gr_passwd)
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self.assertIsInstance(value.gr_passwd, str)
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self.assertEqual(value[2], value.gr_gid)
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self.assertIsInstance(value.gr_gid, int)
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self.assertEqual(value[3], value.gr_mem)
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self.assertIsInstance(value.gr_mem, list)
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def test_values(self):
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entries = grp.getgrall()
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for e in entries:
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self.check_value(e)
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def test_values_extended(self):
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entries = grp.getgrall()
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if len(entries) > 1000: # Huge group file (NIS?) -- skip the rest
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self.skipTest('huge group file, extended test skipped')
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for e in entries:
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e2 = grp.getgrgid(e.gr_gid)
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self.check_value(e2)
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self.assertEqual(e2.gr_gid, e.gr_gid)
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name = e.gr_name
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if name.startswith('+') or name.startswith('-'):
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# NIS-related entry
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continue
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e2 = grp.getgrnam(name)
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self.check_value(e2)
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# There are instances where getgrall() returns group names in
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# lowercase while getgrgid() returns proper casing.
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# Discovered on Ubuntu 5.04 (custom).
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self.assertEqual(e2.gr_name.lower(), name.lower())
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def test_errors(self):
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self.assertRaises(TypeError, grp.getgrgid)
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self.assertRaises(TypeError, grp.getgrnam)
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self.assertRaises(TypeError, grp.getgrall, 42)
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# embedded null character
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self.assertRaises(ValueError, grp.getgrnam, 'a\x00b')
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# try to get some errors
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bynames = {}
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bygids = {}
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for (n, p, g, mem) in grp.getgrall():
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if not n or n == '+':
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continue # skip NIS entries etc.
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bynames[n] = g
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bygids[g] = n
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allnames = list(bynames.keys())
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namei = 0
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fakename = allnames[namei]
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while fakename in bynames:
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chars = list(fakename)
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for i in range(len(chars)):
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if chars[i] == 'z':
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chars[i] = 'A'
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break
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elif chars[i] == 'Z':
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continue
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else:
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chars[i] = chr(ord(chars[i]) + 1)
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break
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else:
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namei = namei + 1
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try:
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fakename = allnames[namei]
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except IndexError:
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# should never happen... if so, just forget it
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break
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fakename = ''.join(chars)
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self.assertRaises(KeyError, grp.getgrnam, fakename)
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# Choose a non-existent gid.
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fakegid = 4127
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while fakegid in bygids:
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fakegid = (fakegid * 3) % 0x10000
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self.assertRaises(KeyError, grp.getgrgid, fakegid)
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def test_noninteger_gid(self):
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entries = grp.getgrall()
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if not entries:
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self.skipTest('no groups')
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# Choose an existent gid.
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gid = entries[0][2]
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self.assertWarns(DeprecationWarning, grp.getgrgid, float(gid))
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self.assertWarns(DeprecationWarning, grp.getgrgid, str(gid))
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if __name__ == "__main__":
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unittest.main()
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