cpython/Lib/test/test_grp.py
Guido van Rossum c1f779cb01 Merged revisions 56125-56153 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/p3yk

........
  r56127 | georg.brandl | 2007-06-30 09:32:49 +0200 (Sat, 30 Jun 2007) | 2 lines

  Fix a place where floor division would be in order.
........
  r56135 | guido.van.rossum | 2007-07-01 06:13:54 +0200 (Sun, 01 Jul 2007) | 28 lines

  Make map() and filter() identical to itertools.imap() and .ifilter(),
  respectively.

  I fixed two bootstrap issues, due to the dynamic import of itertools:

  1. Starting python requires that map() and filter() are not used until
     site.py has added build/lib.<arch> to sys.path.
  2. Building python requires that setup.py and distutils and everything
     they use is free of map() and filter() calls.

  Beyond this, I only fixed the tests in test_builtin.py.
  Others, please help fixing the remaining tests that are now broken!
  The fixes are usually simple:
  a. map(None, X) -> list(X)
  b. map(F, X) -> list(map(F, X))
  c. map(lambda x: F(x), X) -> [F(x) for x in X]
  d. filter(F, X) -> list(filter(F, X))
  e. filter(lambda x: P(x), X) -> [x for x in X if P(x)]

  Someone, please also contribute a fixer for 2to3 to do this.
  It can leave map()/filter() calls alone that are already
  inside a list() or sorted() call or for-loop.

  Only in rare cases have I seen code that depends on map() of lists
  of different lengths going to the end of the longest, or on filter()
  of a string or tuple returning an object of the same type; these
  will need more thought to fix.
........
  r56136 | guido.van.rossum | 2007-07-01 06:22:01 +0200 (Sun, 01 Jul 2007) | 3 lines

  Make it so that test_decimal fails instead of hangs, to help automated
  test runners.
........
  r56139 | georg.brandl | 2007-07-01 18:20:58 +0200 (Sun, 01 Jul 2007) | 2 lines

  Fix a few test cases after the map->imap change.
........
  r56142 | neal.norwitz | 2007-07-02 06:38:12 +0200 (Mon, 02 Jul 2007) | 1 line

  Get a bunch more tests passing after converting map/filter to return iterators.
........
  r56147 | guido.van.rossum | 2007-07-02 15:32:02 +0200 (Mon, 02 Jul 2007) | 4 lines

  Fix the remaining failing unit tests (at least on OSX).
  Also tweaked urllib2 so it doesn't raise socket.gaierror when
  all network interfaces are turned off.
........
2007-07-03 08:25:58 +00:00

89 lines
2.8 KiB
Python
Executable file

"""Test script for the grp module."""
import grp
import unittest
from test import test_support
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.assert_(isinstance(value.gr_name, basestring))
self.assertEqual(value[1], value.gr_passwd)
self.assert_(isinstance(value.gr_passwd, basestring))
self.assertEqual(value[2], value.gr_gid)
self.assert_(isinstance(value.gr_gid, int))
self.assertEqual(value[3], value.gr_mem)
self.assert_(isinstance(value.gr_mem, list))
def test_values(self):
entries = grp.getgrall()
for e in entries:
self.check_value(e)
for e in entries:
e2 = grp.getgrgid(e.gr_gid)
self.check_value(e2)
self.assertEqual(e2.gr_gid, e.gr_gid)
e2 = grp.getgrnam(e.gr_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(), e.gr_name.lower())
def test_errors(self):
self.assertRaises(TypeError, grp.getgrgid)
self.assertRaises(TypeError, grp.getgrnam)
self.assertRaises(TypeError, grp.getgrall, 42)
# 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_main():
test_support.run_unittest(GroupDatabaseTestCase)
if __name__ == "__main__":
test_main()