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#!/bin/bash
#
# qemu-img measure sub-command tests
#
# 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=stefanha@redhat.com
seq=`basename $0`
echo "QA output created by $seq"
here=`pwd`
status=1 # failure is the default!
_cleanup()
{
_cleanup_test_img
rm -f "$TEST_IMG.converted"
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
. ./common.pattern
_supported_fmt raw qcow2
_supported_proto file
_supported_os Linux
echo "== Input validation =="
echo
_make_test_img 1G
$QEMU_IMG measure # missing arguments
$QEMU_IMG measure --size 2G "$TEST_IMG" # only one allowed
$QEMU_IMG measure "$TEST_IMG" a # only one filename allowed
$QEMU_IMG measure --object secret,id=sec0,data=MTIzNDU2,format=base64 # missing filename
$QEMU_IMG measure --image-opts # missing filename
$QEMU_IMG measure -f qcow2 # missing filename
$QEMU_IMG measure -l snap1 # missing filename
$QEMU_IMG measure -o , # invalid option list
$QEMU_IMG measure -l snapshot.foo # invalid snapshot option
$QEMU_IMG measure --output foo # invalid output format
$QEMU_IMG measure --size -1 # invalid image size
$QEMU_IMG measure -O foo "$TEST_IMG" # unknown image file format
make_test_img_with_fmt() {
# Shadow global variables within this function
local IMGFMT="$1" IMGOPTS=""
_make_test_img "$2"
}
qemu_io_with_fmt() {
# Shadow global variables within this function
local QEMU_IO_OPTIONS=$(echo "$QEMU_IO_OPTIONS" | sed "s/-f $IMGFMT/-f $1/")
shift
$QEMU_IO "$@"
}
# The proof is in the pudding: converted image size cannot be larger than the
# required size.
#
# Note: if a change to the image format code causes the file size to change,
# then this test fails! This is good because it's a reminder to check that the
# required size is still at least as big as the actual converted file size.
convert_and_show_size() {
local fmt="$1"
shift
$QEMU_IMG convert -f "$fmt" -O "$IMGFMT" "$TEST_IMG" "$@" "$TEST_IMG.converted"
stat -c "converted image file size in bytes: %s" "$TEST_IMG.converted"
}
for ofmt in human json; do
echo
echo "== Size calculation for a new file ($ofmt) =="
echo
# Try a few interesting sizes
$QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 0
$QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 2G
$QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 64G
$QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 256G
$QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 1T
$QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 2P
$QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 7E
# Always test the raw input files but also IMGFMT
for fmt in $(echo -e "raw\n$IMGFMT\n" | sort -u); do
echo
echo "== Empty $fmt input image ($ofmt) =="
echo
make_test_img_with_fmt "$fmt" 0
$QEMU_IMG measure --output=$ofmt -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
echo
convert_and_show_size "$fmt"
echo
echo "== $fmt input image with data ($ofmt) =="
echo
make_test_img_with_fmt "$fmt" 1G
$QEMU_IMG measure --output=$ofmt -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
qemu_io_with_fmt "$fmt" -c "write 512 512" "$TEST_IMG" | _filter_qemu_io
qemu_io_with_fmt "$fmt" -c "write 64K 64K" "$TEST_IMG" | _filter_qemu_io
if [ "$fmt" = "qcow2" ]; then
$QEMU_IMG snapshot -c snapshot1 "$TEST_IMG"
fi
qemu_io_with_fmt "$fmt" -c "write 128M 63K" "$TEST_IMG" | _filter_qemu_io
$QEMU_IMG measure --output=$ofmt -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
echo
convert_and_show_size "$fmt"
if [ "$fmt" = "qcow2" ]; then
echo
echo "== $fmt input image with internal snapshot ($ofmt) =="
echo
$QEMU_IMG measure --output=$ofmt -f "$fmt" -l snapshot1 \
-O "$IMGFMT" "$TEST_IMG"
echo
convert_and_show_size "$fmt" -l snapshot1
fi
if [ "$IMGFMT" = "qcow2" ]; then
echo
echo "== $fmt input image and a backing file ($ofmt) =="
echo
# The backing file doesn't need to exist :)
$QEMU_IMG measure --output=$ofmt -o backing_file=x \
-f "$fmt" -O "$IMGFMT" "$TEST_IMG"
fi
echo
echo "== $fmt input image and preallocation ($ofmt) =="
echo
$QEMU_IMG measure --output=$ofmt -o preallocation=full \
-f "$fmt" -O "$IMGFMT" "$TEST_IMG"
echo
convert_and_show_size "$fmt" -o preallocation=full
echo
echo "== Fully-allocated $fmt input image ($ofmt) =="
echo
make_test_img_with_fmt "$fmt" 8M
qemu_io_with_fmt "$fmt" -c "write 0 8M" "$TEST_IMG" | _filter_qemu_io
$QEMU_IMG measure --output=$ofmt -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
echo
convert_and_show_size "$fmt"
done
done
# success, all done
echo "*** done"
rm -f $seq.full
status=0
|
