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25 lines
578 B
Python
25 lines
578 B
Python
# Helper script for test_tempfile.py. argv[2] is the number of a file
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# descriptor which should _not_ be open. Check this by attempting to
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# write to it -- if we succeed, something is wrong.
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import sys
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import os
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verbose = (sys.argv[1] == 'v')
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try:
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fd = int(sys.argv[2])
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try:
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os.write(fd, b"blat")
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except os.error:
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# Success -- could not write to fd.
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sys.exit(0)
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else:
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if verbose:
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sys.stderr.write("fd %d is open in child" % fd)
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sys.exit(1)
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except Exception:
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if verbose:
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raise
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sys.exit(1)
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