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Test protection against picling to/from closed (real) file.

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This commit is contained in:
Guido van Rossum 1999-03-29 19:59:32 +00:00
parent 4958f9af97
commit 89ae2b9f07
1 changed files with 20 additions and 0 deletions
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20
Lib/test/test_cpickle.py
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@ -72,4 +72,24 @@ def dotest():
if x2 == x: print "ok"
else: print "bad"
# Test protection against closed files
import tempfile, os
fn = tempfile.mktemp()
f = open(fn, "w")
f.close()
try:
cPickle.dump(123, f)
except IOError:
pass
else:
print "dump to closed file should raise IOError"
f = open(fn, "r")
f.close()
try:
cPickle.load(f)
except IOError:
pass
else:
print "load from closed file should raise IOError"
dotest()