| 1 | '''
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| 2 | Tests for commands module
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| 3 | Nick Mathewson
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| 4 | '''
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| 5 | import unittest
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| 6 | import os, tempfile, re
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| 7 |
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| 8 | from test.test_support import TestSkipped, run_unittest, reap_children
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| 9 | from commands import *
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| 10 |
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| 11 | # The module says:
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| 12 | # "NB This only works (and is only relevant) for UNIX."
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| 13 | #
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| 14 | # Actually, getoutput should work on any platform with an os.popen, but
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| 15 | # I'll take the comment as given, and skip this suite.
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| 16 |
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| 17 | if os.name != 'posix':
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| 18 | raise TestSkipped('Not posix; skipping test_commands')
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| 19 |
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| 20 |
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| 21 | class CommandTests(unittest.TestCase):
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| 22 |
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| 23 | def test_getoutput(self):
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| 24 | self.assertEquals(getoutput('echo xyzzy'), 'xyzzy')
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| 25 | self.assertEquals(getstatusoutput('echo xyzzy'), (0, 'xyzzy'))
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| 26 |
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| 27 | # we use mkdtemp in the next line to create an empty directory
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| 28 | # under our exclusive control; from that, we can invent a pathname
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| 29 | # that we _know_ won't exist. This is guaranteed to fail.
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| 30 | dir = None
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| 31 | try:
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| 32 | dir = tempfile.mkdtemp()
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| 33 | name = os.path.join(dir, "foo")
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| 34 |
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| 35 | status, output = getstatusoutput('cat ' + name)
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| 36 | self.assertNotEquals(status, 0)
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| 37 | finally:
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| 38 | if dir is not None:
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| 39 | os.rmdir(dir)
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| 40 |
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| 41 | def test_getstatus(self):
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| 42 | # This pattern should match 'ls -ld /.' on any posix
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| 43 | # system, however perversely configured. Even on systems
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| 44 | # (e.g., Cygwin) where user and group names can have spaces:
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| 45 | # drwxr-xr-x 15 Administ Domain U 4096 Aug 12 12:50 /
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| 46 | # drwxr-xr-x 15 Joe User My Group 4096 Aug 12 12:50 /
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| 47 | # Note that the first case above has a space in the group name
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| 48 | # while the second one has a space in both names.
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| 49 | pat = r'''d......... # It is a directory.
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| 50 | \+? # It may have ACLs.
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| 51 | \s+\d+ # It has some number of links.
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| 52 | [^/]* # Skip user, group, size, and date.
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| 53 | /\. # and end with the name of the file.
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| 54 | '''
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| 55 |
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| 56 | self.assert_(re.match(pat, getstatus("/."), re.VERBOSE))
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| 57 |
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| 58 |
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| 59 | def test_main():
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| 60 | run_unittest(CommandTests)
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| 61 | reap_children()
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| 62 |
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| 63 |
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| 64 | if __name__ == "__main__":
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| 65 | test_main()
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