qemu/tests/qemu-iotests/120
Thomas Huth 21b43d0048 iotests: Check for enabled drivers before testing them
It is possible to enable only a subset of the block drivers with the
"--block-drv-rw-whitelist" option of the "configure" script. All other
drivers are marked as unusable (or only included as read-only with the
"--block-drv-ro-whitelist" option). If an iotest is now using such a
disabled block driver, it is failing - which is bad, since at least the
tests in the "auto" group should be able to deal with this situation.
Thus let's introduce a "_require_drivers" function that can be used by
the shell tests to check for the availability of certain drivers first,
and marks the test as "not run" if one of the drivers is missing.

This patch mainly targets the test in the "auto" group which should
never fail in such a case, but also improves some of the other tests
along the way. Note that we also assume that the "qcow2" and "file"
drivers are always available - otherwise it does not make sense to
run "make check-block" at all (which only tests with qcow2 by default).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 20190823133552.11680-1-thuth@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-09-03 14:56:06 +02:00

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#!/usr/bin/env bash
#
# Non-NBD test cases for overriding BDRV_O_PROTOCOL by explicitly
# specifying a driver
#
# Copyright (C) 2015 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# creator
owner=mreitz@redhat.com
seq="$(basename $0)"
echo "QA output created by $seq"
status=1 # failure is the default!
_cleanup()
{
_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
_supported_fmt generic
_supported_proto file
_unsupported_fmt luks
_require_drivers raw
_make_test_img 64M
echo "{'execute': 'qmp_capabilities'}
{'execute': 'human-monitor-command',
'arguments': {'command-line': 'qemu-io drv \"write -P 42 0 64k\"'}}
{'execute': 'quit'}" \
| $QEMU -qmp stdio -nographic -nodefaults \
-drive id=drv,if=none,file="$TEST_IMG",driver=raw,file.driver=$IMGFMT \
| _filter_qmp | _filter_qemu_io
$QEMU_IO -c 'read -P 42 0 64k' "$TEST_IMG" | _filter_qemu_io
$QEMU_IO_PROG -c 'read -P 42 0 64k' \
"json:{'driver': 'raw', 'file': {'driver': '$IMGFMT', 'file': {'filename': '$TEST_IMG'}}}" \
| _filter_qemu_io
# success, all done
echo
echo '*** done'
rm -f $seq.full
status=0