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annotate Lib/test/test_grp.py @ 79675:c0a2294de787 2.7

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Issue #16199: Backport 2to3 typo fix from 3.2.
author Chris Jerdonek <chris.jerdonek@gmail.com>
date Thu, 11 Oct 2012 16:15:46 -0700
parents 79a2b6a12805
children c982393bea4e
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.assertIsInstance(value.gr_name, basestring)
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16 self.assertEqual(value[1], value.gr_passwd)
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17 self.assertIsInstance(value.gr_passwd, basestring)
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18 self.assertEqual(value[2], value.gr_gid)
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19 self.assertIsInstance(value.gr_gid, int)
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20 self.assertEqual(value[3], value.gr_mem)
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21 self.assertIsInstance(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 name = e.gr_name
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37 if name.startswith('+') or name.startswith('-'):
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38 # NIS-related entry
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39 continue
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40 e2 = grp.getgrnam(name)
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41 self.check_value(e2)
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42 # There are instances where getgrall() returns group names in
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43 # lowercase while getgrgid() returns proper casing.
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44 # Discovered on Ubuntu 5.04 (custom).
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45 self.assertEqual(e2.gr_name.lower(), name.lower())
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46
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47 def test_errors(self):
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48 self.assertRaises(TypeError, grp.getgrgid)
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49 self.assertRaises(TypeError, grp.getgrnam)
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50 self.assertRaises(TypeError, grp.getgrall, 42)
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51
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52 # try to get some errors
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53 bynames = {}
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54 bygids = {}
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55 for (n, p, g, mem) in grp.getgrall():
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56 if not n or n == '+':
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57 continue # skip NIS entries etc.
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58 bynames[n] = g
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59 bygids[g] = n
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60
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61 allnames = bynames.keys()
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62 namei = 0
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63 fakename = allnames[namei]
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64 while fakename in bynames:
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65 chars = list(fakename)
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66 for i in xrange(len(chars)):
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67 if chars[i] == 'z':
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68 chars[i] = 'A'
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69 break
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70 elif chars[i] == 'Z':
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71 continue
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72 else:
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73 chars[i] = chr(ord(chars[i]) + 1)
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74 break
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75 else:
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76 namei = namei + 1
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77 try:
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78 fakename = allnames[namei]
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79 except IndexError:
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80 # should never happen... if so, just forget it
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81 break
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82 fakename = ''.join(chars)
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83
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84 self.assertRaises(KeyError, grp.getgrnam, fakename)
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85
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86 # Choose a non-existent gid.
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87 fakegid = 4127
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88 while fakegid in bygids:
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89 fakegid = (fakegid * 3) % 0x10000
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90
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91 self.assertRaises(KeyError, grp.getgrgid, fakegid)
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92
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93 def test_main():
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94 test_support.run_unittest(GroupDatabaseTestCase)
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95
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96 if __name__ == "__main__":
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97 test_main()