qemu-e2k/tests/qemu-iotests/186
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
#
# Test 'info block' with all kinds of configurations
#
# Copyright (C) 2017 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=kwolf@redhat.com
seq=`basename $0`
echo "QA output created by $seq"
status=1 # failure is the default!
_cleanup()
{
_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
_supported_fmt qcow2
_supported_proto file
_require_drivers null-co
if [ "$QEMU_DEFAULT_MACHINE" != "pc" ]; then
_notrun "Requires a PC machine"
fi
do_run_qemu()
{
echo Testing: "$@"
(
if ! test -t 0; then
while read cmd; do
echo $cmd
done
fi
echo quit
) | $QEMU -S -display none -device virtio-scsi-pci -monitor stdio "$@" 2>&1
echo
}
check_info_block()
{
echo "info block" |
do_run_qemu "$@" | _filter_win32 | _filter_hmp | _filter_qemu |
_filter_generated_node_ids | _filter_qom_path
}
size=64M
_make_test_img $size
removable="floppy ide-cd scsi-cd"
fixed="ide-hd scsi-hd virtio-blk-pci"
echo
echo "=== Empty drives ==="
echo
for dev in $removable; do
check_info_block -device $dev
check_info_block -device $dev,id=qdev_id
done
echo
echo "=== -blockdev/-device=<node-name> ==="
echo
for dev in $fixed $removable; do
check_info_block -blockdev driver=null-co,read-zeroes=on,node-name=null -device $dev,drive=null
check_info_block -blockdev driver=null-co,read-zeroes=on,node-name=null -device $dev,drive=null,id=qdev_id
done
echo
echo "=== -drive if=none/-device=<node-name> ==="
echo
# This creates two BlockBackends that will show up in 'info block'!
# A monitor-owned one from -drive, and anonymous one from -device
for dev in $fixed $removable; do
check_info_block -drive if=none,driver=null-co,read-zeroes=on,node-name=null -device $dev,drive=null,id=qdev_id
done
echo
echo "=== -drive if=none/-device=<bb-name> (with medium) ==="
echo
for dev in $fixed $removable; do
check_info_block -drive if=none,driver=null-co,read-zeroes=on,node-name=null -device $dev,drive=none0
check_info_block -drive if=none,driver=null-co,read-zeroes=on,node-name=null -device $dev,drive=none0,id=qdev_id
done
echo
echo "=== -drive if=none/-device=<bb-name> (without medium) ==="
echo
check_info_block -drive if=none
for dev in $removable; do
check_info_block -drive if=none -device $dev,drive=none0
check_info_block -drive if=none -device $dev,drive=none0,id=qdev_id
done
echo
echo "=== -drive if=... ==="
echo
check_info_block -drive if=floppy
check_info_block -drive if=floppy,driver=null-co,read-zeroes=on
check_info_block -drive if=ide,driver=null-co,read-zeroes=on
check_info_block -drive if=ide,media=cdrom
check_info_block -drive if=ide,driver=null-co,read-zeroes=on,media=cdrom
check_info_block -drive if=virtio,driver=null-co,read-zeroes=on
check_info_block -drive if=pflash,driver=null-co,read-zeroes=on,size=1M
# success, all done
echo "*** done"
rm -f $seq.full
status=0