Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / sam-t2 / devtools / amd64 / lib / python2.4 / test / test_popen2.py

#! /usr/bin/env python
"""Test script for popen2.py
  Christian Tismer
"""

import os
import sys
from test.test_support import TestSkipped

# popen2 contains its own testing routine
# which is especially useful to see if open files
# like stdin can be read successfully by a forked
# subprocess.

def main():
   print "Test popen2 module:"
   if (sys.platform[:4] == 'beos' or sys.platform[:6] == 'atheos') \
          and __name__ != '__main__':
       #  Locks get messed up or something.  Generally we're supposed
       #  to avoid mixing "posix" fork & exec with native threads, and
       #  they may be right about that after all.
       raise TestSkipped, "popen2() doesn't work during import on " + sys.platform
   try:
       from os import popen
   except ImportError:
       # if we don't have os.popen, check that
       # we have os.fork.  if not, skip the test
       # (by raising an ImportError)
       from os import fork
   import popen2
   popen2._test()


def _test():
   # same test as popen2._test(), but using the os.popen*() API
   print "Testing os module:"
   import popen2
   cmd  = "cat"
   teststr = "ab cd\n"
   if os.name == "nt":
       cmd = "more"
   # "more" doesn't act the same way across Windows flavors,
   # sometimes adding an extra newline at the start or the
   # end.  So we strip whitespace off both ends for comparison.
   expected = teststr.strip()
   print "testing popen2..."
   w, r = os.popen2(cmd)
   w.write(teststr)
   w.close()
   got = r.read()
   if got.strip() != expected:
       raise ValueError("wrote %r read %r" % (teststr, got))
   print "testing popen3..."
   try:
       w, r, e = os.popen3([cmd])
   except:
       w, r, e = os.popen3(cmd)
   w.write(teststr)
   w.close()
   got = r.read()
   if got.strip() != expected:
       raise ValueError("wrote %r read %r" % (teststr, got))
   got = e.read()
   if got:
       raise ValueError("unexpected %r on stderr" % (got,))
   for inst in popen2._active[:]:
       inst.wait()
   if popen2._active:
       raise ValueError("_active not empty")
   print "All OK"

main()
_test()