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42 lines
1.8 KiB
Python
42 lines
1.8 KiB
Python
import sys
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if 'runtestcase' in sys.argv[1:]: # pragma: no cover
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import gevent
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import gevent.subprocess
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gevent.spawn(sys.exit, 'bye')
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# Look closely, this doesn't actually do anything, that's a string
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# not a division
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gevent.subprocess.Popen([sys.executable, '-c', '"1/0"'])
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gevent.sleep(1)
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else:
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# XXX: Handle this more automatically. See comments in the testrunner.
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from gevent.testing.resources import exit_without_resource
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exit_without_resource('subprocess')
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import subprocess
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for _ in range(5):
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out, err = subprocess.Popen([sys.executable, '-W', 'ignore',
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__file__, 'runtestcase'],
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stderr=subprocess.PIPE).communicate()
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# We've seen a few unexpected forms of output.
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#
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# The first involves 'refs'; I don't remember what that was
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# about, but I think it had to do with debug builds of Python.
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#
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# The second is the classic "Unhandled exception in thread
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# started by \nsys.excepthook is missing\nlost sys.stderr".
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# This is a race condition between closing sys.stderr and
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# writing buffered data to a pipe that hasn't been read. We
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# only see this using GEVENT_FILE=thread (which makes sense);
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# likewise, on Python 2 with thread, we can sometimes get
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# `super() argument 1 must be type, not None`; this happens on module
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# cleanup.
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#
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# The third is similar to the second: "AssertionError:
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# ...\nIOError: close() called during concurrent operation on
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# the same file object.\n"
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if b'refs' in err or b'sys.excepthook' in err or b'concurrent' in err:
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assert err.startswith(b'bye'), repr(err) # pragma: no cover
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else:
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assert err.strip() == b'bye', repr(err)
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