Author: Philip Jenvey <[email protected]>
Branch: py3k
Changeset: r62332:8510cb5ffeb9
Date: 2013-03-13 15:57 -0700
http://bitbucket.org/pypy/pypy/changeset/8510cb5ffeb9/
Log: apply another obscure workaround from default (c1a2ac377ca4)
diff --git a/lib-python/3/test/test_io.py b/lib-python/3/test/test_io.py
--- a/lib-python/3/test/test_io.py
+++ b/lib-python/3/test/test_io.py
@@ -2844,6 +2844,31 @@
"""Check that a partial write, when it gets interrupted, properly
invokes the signal handler, and bubbles up the exception raised
in the latter."""
+
+ # XXX This test has three flaws that appear when objects are
+ # XXX not reference counted.
+
+ # - if wio.write() happens to trigger a garbage collection,
+ # the signal exception may be raised when some __del__
+ # method is running; it will not reach the assertRaises()
+ # call.
+
+ # - more subtle, if the wio object is not destroyed at once
+ # and survives this function, the next opened file is likely
+ # to have the same fileno (since the file descriptor was
+ # actively closed). When wio.__del__ is finally called, it
+ # will close the other's test file... To trigger this with
+ # CPython, try adding "global wio" in this function.
+
+ # - This happens only for streams created by the _pyio module,
+ # because a wio.close() that fails still consider that the
+ # file needs to be closed again. You can try adding an
+ # "assert wio.closed" at the end of the function.
+
+ # Fortunately, a little gc.gollect() seems to be enough to
+ # work around all these issues.
+ support.gc_collect()
+
read_results = []
def _read():
s = os.read(r, 1)
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