tests: redirect stderr to stdout for iotests
commit491e5e85ef7f10946762b3827eaa62635593fced
authorDaniel P. Berrange <berrange@redhat.com>
Mon, 21 Mar 2016 14:11:44 +0000 (21 14:11 +0000)
committerKevin Wolf <kwolf@redhat.com>
Wed, 30 Mar 2016 09:59:32 +0000 (30 11:59 +0200)
tree83d9c5dbd1492ce8b3252ac8c8d2ff19e220e0a4
parent4ef130fca87b7a8c77e1af9ca967f28b683811d7
tests: redirect stderr to stdout for iotests

The python I/O tests helper for running qemu-img/qemu-io
setup stdout to be captured to a pipe, but left stderr
untouched. As a result, if something failed in qemu-img/
qemu-io, data written to stderr would get output directly
and not line up with data on the test stdout due to
buffering.  If we explicitly redirect stderr to the same
pipe as stdout, things are much clearer when they go
wrong.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
tests/qemu-iotests/iotests.py