Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_grp.py @ 54294:dba767bc3155 legacy-trunk

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remove mention of old ctypes version
author Benjamin Peterson <benjamin@python.org>
date Sat, 23 May 2009 20:59:09 +0000
parents f2c90fd05d66
children 6768b2350c57
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 """Test script for the grp module."""
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2
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3 import unittest
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4 from test import test_support
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5
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6 grp = test_support.import_module('grp')
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7
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8 class GroupDatabaseTestCase(unittest.TestCase):
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9
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10 def check_value(self, value):
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11 # check that a grp tuple has the entries and
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12 # attributes promised by the docs
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13 self.assertEqual(len(value), 4)
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14 self.assertEqual(value[0], value.gr_name)
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15 self.assert_(isinstance(value.gr_name, basestring))
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16 self.assertEqual(value[1], value.gr_passwd)
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17 self.assert_(isinstance(value.gr_passwd, basestring))
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18 self.assertEqual(value[2], value.gr_gid)
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19 self.assert_(isinstance(value.gr_gid, int))
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20 self.assertEqual(value[3], value.gr_mem)
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21 self.assert_(isinstance(value.gr_mem, list))
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22
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23 def test_values(self):
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24 entries = grp.getgrall()
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25
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26 for e in entries:
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27 self.check_value(e)
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28
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29 if len(entries) > 1000: # Huge group file (NIS?) -- skip the rest
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30 return
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31
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32 for e in entries:
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33 e2 = grp.getgrgid(e.gr_gid)
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34 self.check_value(e2)
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35 self.assertEqual(e2.gr_gid, e.gr_gid)
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36 e2 = grp.getgrnam(e.gr_name)
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37 self.check_value(e2)
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Brett Cannon <bcannon@gmail.com>
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38 # There are instances where getgrall() returns group names in
8a58aa40dcc0 Change test_values so that it compares the lowercasing of group names since getgrall() can return all lowercase names while getgrgid() returns proper casing.
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39 # lowercase while getgrgid() returns proper casing.
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40 # Discovered on Ubuntu 5.04 (custom).
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41 self.assertEqual(e2.gr_name.lower(), e.gr_name.lower())
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42
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43 def test_errors(self):
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44 self.assertRaises(TypeError, grp.getgrgid)
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45 self.assertRaises(TypeError, grp.getgrnam)
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46 self.assertRaises(TypeError, grp.getgrall, 42)
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47
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48 # try to get some errors
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49 bynames = {}
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50 bygids = {}
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51 for (n, p, g, mem) in grp.getgrall():
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52 if not n or n == '+':
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53 continue # skip NIS entries etc.
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54 bynames[n] = g
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55 bygids[g] = n
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56
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57 allnames = bynames.keys()
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58 namei = 0
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59 fakename = allnames[namei]
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60 while fakename in bynames:
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61 chars = list(fakename)
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62 for i in xrange(len(chars)):
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63 if chars[i] == 'z':
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64 chars[i] = 'A'
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65 break
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66 elif chars[i] == 'Z':
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67 continue
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68 else:
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69 chars[i] = chr(ord(chars[i]) + 1)
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70 break
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71 else:
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72 namei = namei + 1
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73 try:
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74 fakename = allnames[namei]
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75 except IndexError:
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76 # should never happen... if so, just forget it
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77 break
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78 fakename = ''.join(chars)
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79
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80 self.assertRaises(KeyError, grp.getgrnam, fakename)
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81
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82 # Choose a non-existent gid.
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83 fakegid = 4127
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84 while fakegid in bygids:
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85 fakegid = (fakegid * 3) % 0x10000
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86
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87 self.assertRaises(KeyError, grp.getgrgid, fakegid)
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88
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89 def test_main():
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90 test_support.run_unittest(GroupDatabaseTestCase)
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91
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92 if __name__ == "__main__":
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93 test_main()