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597ebab744
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.
93 lines
2.7 KiB
Python
Executable file
93 lines
2.7 KiB
Python
Executable file
"""Test program for the fcntl C module.
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OS/2+EMX doesn't support the file locking operations.
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"""
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import os
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import struct
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import sys
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import unittest
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from test.test_support import (verbose, TESTFN, unlink, run_unittest,
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import_module)
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# Skip test if no fnctl module.
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fcntl = import_module('fcntl')
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# TODO - Write tests for flock() and lockf().
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def get_lockdata():
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if sys.platform.startswith('atheos'):
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start_len = "qq"
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else:
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try:
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os.O_LARGEFILE
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except AttributeError:
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start_len = "ll"
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else:
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start_len = "qq"
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if sys.platform in ('netbsd1', 'netbsd2', 'netbsd3',
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'Darwin1.2', 'darwin',
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'freebsd2', 'freebsd3', 'freebsd4', 'freebsd5',
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'freebsd6', 'freebsd7', 'freebsd8',
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'bsdos2', 'bsdos3', 'bsdos4',
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'openbsd', 'openbsd2', 'openbsd3', 'openbsd4'):
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if struct.calcsize('l') == 8:
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off_t = 'l'
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pid_t = 'i'
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else:
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off_t = 'lxxxx'
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pid_t = 'l'
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lockdata = struct.pack(off_t + off_t + pid_t + 'hh', 0, 0, 0,
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fcntl.F_WRLCK, 0)
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elif sys.platform in ['aix3', 'aix4', 'hp-uxB', 'unixware7']:
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lockdata = struct.pack('hhlllii', fcntl.F_WRLCK, 0, 0, 0, 0, 0, 0)
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elif sys.platform in ['os2emx']:
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lockdata = None
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else:
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lockdata = struct.pack('hh'+start_len+'hh', fcntl.F_WRLCK, 0, 0, 0, 0, 0)
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if lockdata:
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if verbose:
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print 'struct.pack: ', repr(lockdata)
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return lockdata
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lockdata = get_lockdata()
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class TestFcntl(unittest.TestCase):
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def setUp(self):
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self.f = None
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def tearDown(self):
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if not self.f.closed:
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self.f.close()
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unlink(TESTFN)
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def test_fcntl_fileno(self):
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# the example from the library docs
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self.f = open(TESTFN, 'w')
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rv = fcntl.fcntl(self.f.fileno(), fcntl.F_SETFL, os.O_NONBLOCK)
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if verbose:
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print 'Status from fcntl with O_NONBLOCK: ', rv
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if sys.platform not in ['os2emx']:
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rv = fcntl.fcntl(self.f.fileno(), fcntl.F_SETLKW, lockdata)
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if verbose:
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print 'String from fcntl with F_SETLKW: ', repr(rv)
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self.f.close()
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def test_fcntl_file_descriptor(self):
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# again, but pass the file rather than numeric descriptor
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self.f = open(TESTFN, 'w')
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rv = fcntl.fcntl(self.f, fcntl.F_SETFL, os.O_NONBLOCK)
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if sys.platform not in ['os2emx']:
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rv = fcntl.fcntl(self.f, fcntl.F_SETLKW, lockdata)
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self.f.close()
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def test_main():
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run_unittest(TestFcntl)
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if __name__ == '__main__':
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test_main()
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