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a21e4ca3c6
........ r70734 | r.david.murray | 2009-03-30 15:04:00 -0400 (Mon, 30 Mar 2009) | 7 lines Add import_function method to test.test_support, and modify a number of tests that expect to be skipped if imports fail or functions don't exist to use import_function and import_module. The ultimate goal is to change regrtest to not skip automatically on ImportError. Checking in now to make sure the buldbots don't show any errors on platforms I can't direct test on. ........ r70775 | r.david.murray | 2009-03-30 19:05:48 -0400 (Mon, 30 Mar 2009) | 4 lines Change more tests to use import_module for the modules that should cause tests to be skipped. Also rename import_function to the more descriptive get_attribute and add a docstring. ........ r70856 | r.david.murray | 2009-03-31 14:32:17 -0400 (Tue, 31 Mar 2009) | 7 lines A few more test skips via import_module, and change import_module to return the error message produced by importlib, so that if an import in the package whose import is being wrapped is what failed the skip message will contain the name of that module instead of the name of the wrapped module. Also fixed formatting of some previous comments. ........ r70874 | r.david.murray | 2009-03-31 15:33:15 -0400 (Tue, 31 Mar 2009) | 5 lines Improve test_support.import_module docstring, remove deprecated flag from get_attribute since it isn't likely to do anything useful. ........ r70876 | r.david.murray | 2009-03-31 15:49:15 -0400 (Tue, 31 Mar 2009) | 4 lines Remove the regrtest check that turns any ImportError into a skipped test. Hopefully all modules whose imports legitimately result in a skipped test have been properly wrapped by the previous commits. ........ r70877 | r.david.murray | 2009-03-31 15:57:24 -0400 (Tue, 31 Mar 2009) | 2 lines Add NEWS entry for regrtest change. ........
258 lines
8.8 KiB
Python
258 lines
8.8 KiB
Python
"Test posix functions"
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from test import support
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import time
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import os
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import pwd
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import shutil
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import unittest
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import warnings
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posix = support.import_module('posix')
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warnings.filterwarnings('ignore', '.* potential security risk .*',
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RuntimeWarning)
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class PosixTester(unittest.TestCase):
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def setUp(self):
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# create empty file
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fp = open(support.TESTFN, 'w+')
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fp.close()
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def tearDown(self):
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support.unlink(support.TESTFN)
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def testNoArgFunctions(self):
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# test posix functions which take no arguments and have
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# no side-effects which we need to cleanup (e.g., fork, wait, abort)
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NO_ARG_FUNCTIONS = [ "ctermid", "getcwd", "getcwdb", "uname",
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"times", "getloadavg",
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"getegid", "geteuid", "getgid", "getgroups",
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"getpid", "getpgrp", "getppid", "getuid",
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]
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for name in NO_ARG_FUNCTIONS:
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posix_func = getattr(posix, name, None)
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if posix_func is not None:
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posix_func()
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self.assertRaises(TypeError, posix_func, 1)
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def test_statvfs(self):
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if hasattr(posix, 'statvfs'):
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self.assert_(posix.statvfs(os.curdir))
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def test_fstatvfs(self):
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if hasattr(posix, 'fstatvfs'):
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fp = open(support.TESTFN)
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try:
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self.assert_(posix.fstatvfs(fp.fileno()))
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finally:
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fp.close()
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def test_ftruncate(self):
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if hasattr(posix, 'ftruncate'):
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fp = open(support.TESTFN, 'w+')
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try:
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# we need to have some data to truncate
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fp.write('test')
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fp.flush()
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posix.ftruncate(fp.fileno(), 0)
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finally:
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fp.close()
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def test_dup(self):
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if hasattr(posix, 'dup'):
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fp = open(support.TESTFN)
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try:
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fd = posix.dup(fp.fileno())
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self.assert_(isinstance(fd, int))
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os.close(fd)
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finally:
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fp.close()
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def test_confstr(self):
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if hasattr(posix, 'confstr'):
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self.assertRaises(ValueError, posix.confstr, "CS_garbage")
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self.assertEqual(len(posix.confstr("CS_PATH")) > 0, True)
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def test_dup2(self):
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if hasattr(posix, 'dup2'):
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fp1 = open(support.TESTFN)
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fp2 = open(support.TESTFN)
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try:
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posix.dup2(fp1.fileno(), fp2.fileno())
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finally:
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fp1.close()
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fp2.close()
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def test_osexlock(self):
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if hasattr(posix, "O_EXLOCK"):
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fd = os.open(support.TESTFN,
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os.O_WRONLY|os.O_EXLOCK|os.O_CREAT)
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self.assertRaises(OSError, os.open, support.TESTFN,
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os.O_WRONLY|os.O_EXLOCK|os.O_NONBLOCK)
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os.close(fd)
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if hasattr(posix, "O_SHLOCK"):
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fd = os.open(support.TESTFN,
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os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
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self.assertRaises(OSError, os.open, support.TESTFN,
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os.O_WRONLY|os.O_EXLOCK|os.O_NONBLOCK)
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os.close(fd)
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def test_osshlock(self):
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if hasattr(posix, "O_SHLOCK"):
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fd1 = os.open(support.TESTFN,
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os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
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fd2 = os.open(support.TESTFN,
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os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
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os.close(fd2)
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os.close(fd1)
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if hasattr(posix, "O_EXLOCK"):
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fd = os.open(support.TESTFN,
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os.O_WRONLY|os.O_SHLOCK|os.O_CREAT)
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self.assertRaises(OSError, os.open, support.TESTFN,
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os.O_RDONLY|os.O_EXLOCK|os.O_NONBLOCK)
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os.close(fd)
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def test_fstat(self):
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if hasattr(posix, 'fstat'):
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fp = open(support.TESTFN)
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try:
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self.assert_(posix.fstat(fp.fileno()))
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finally:
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fp.close()
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def test_stat(self):
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if hasattr(posix, 'stat'):
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self.assert_(posix.stat(support.TESTFN))
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if hasattr(posix, 'chown'):
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def test_chown(self):
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# raise an OSError if the file does not exist
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os.unlink(support.TESTFN)
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self.assertRaises(OSError, posix.chown, support.TESTFN, -1, -1)
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# re-create the file
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open(support.TESTFN, 'w').close()
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if os.getuid() == 0:
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try:
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# Many linux distros have a nfsnobody user as MAX_UID-2
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# that makes a good test case for signedness issues.
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# http://bugs.python.org/issue1747858
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# This part of the test only runs when run as root.
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# Only scary people run their tests as root.
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ent = pwd.getpwnam('nfsnobody')
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posix.chown(support.TESTFN, ent.pw_uid, ent.pw_gid)
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except KeyError:
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pass
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else:
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# non-root cannot chown to root, raises OSError
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self.assertRaises(OSError, posix.chown,
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support.TESTFN, 0, 0)
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# test a successful chown call
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posix.chown(support.TESTFN, os.getuid(), os.getgid())
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def test_chdir(self):
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if hasattr(posix, 'chdir'):
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posix.chdir(os.curdir)
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self.assertRaises(OSError, posix.chdir, support.TESTFN)
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def test_lsdir(self):
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if hasattr(posix, 'lsdir'):
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self.assert_(support.TESTFN in posix.lsdir(os.curdir))
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def test_access(self):
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if hasattr(posix, 'access'):
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self.assert_(posix.access(support.TESTFN, os.R_OK))
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def test_umask(self):
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if hasattr(posix, 'umask'):
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old_mask = posix.umask(0)
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self.assert_(isinstance(old_mask, int))
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posix.umask(old_mask)
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def test_strerror(self):
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if hasattr(posix, 'strerror'):
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self.assert_(posix.strerror(0))
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def test_pipe(self):
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if hasattr(posix, 'pipe'):
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reader, writer = posix.pipe()
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os.close(reader)
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os.close(writer)
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def test_utime(self):
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if hasattr(posix, 'utime'):
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now = time.time()
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posix.utime(support.TESTFN, None)
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self.assertRaises(TypeError, posix.utime, support.TESTFN, (None, None))
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self.assertRaises(TypeError, posix.utime, support.TESTFN, (now, None))
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self.assertRaises(TypeError, posix.utime, support.TESTFN, (None, now))
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posix.utime(support.TESTFN, (int(now), int(now)))
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posix.utime(support.TESTFN, (now, now))
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def test_chflags(self):
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if hasattr(posix, 'chflags'):
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st = os.stat(support.TESTFN)
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if hasattr(st, 'st_flags'):
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posix.chflags(support.TESTFN, st.st_flags)
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def test_lchflags(self):
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if hasattr(posix, 'lchflags'):
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st = os.stat(support.TESTFN)
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if hasattr(st, 'st_flags'):
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posix.lchflags(support.TESTFN, st.st_flags)
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def test_environ(self):
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for k, v in posix.environ.items():
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self.assertEqual(type(k), str)
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self.assertEqual(type(v), str)
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def test_getcwd_long_pathnames(self):
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if hasattr(posix, 'getcwd'):
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dirname = 'getcwd-test-directory-0123456789abcdef-01234567890abcdef'
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curdir = os.getcwd()
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base_path = os.path.abspath(support.TESTFN) + '.getcwd'
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try:
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os.mkdir(base_path)
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os.chdir(base_path)
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except:
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# Just returning nothing instead of the SkipTest exception,
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# because the test results in Error in that case.
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# Is that ok?
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# raise unittest.SkipTest("cannot create directory for testing")
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return
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def _create_and_do_getcwd(dirname, current_path_length = 0):
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try:
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os.mkdir(dirname)
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except:
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raise unittest.SkipTest("mkdir cannot create directory sufficiently deep for getcwd test")
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os.chdir(dirname)
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try:
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os.getcwd()
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if current_path_length < 1027:
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_create_and_do_getcwd(dirname, current_path_length + len(dirname) + 1)
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finally:
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os.chdir('..')
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os.rmdir(dirname)
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_create_and_do_getcwd(dirname)
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finally:
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support.rmtree(base_path)
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os.chdir(curdir)
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def test_main():
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support.run_unittest(PosixTester)
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if __name__ == '__main__':
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test_main()
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