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74163adda3
These tests read size information (sometimes disk size, sometimes virtual size) from qemu-img info's output. Once qemu-img starts printing info about child nodes, we are going to see multiple instances of that per image, but these tests are only interested in the first one, so use "head -n 1" to get it. Signed-off-by: Hanna Reitz <hreitz@redhat.com> Message-Id: <20220620162704.80987-11-hreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
120 lines
3.7 KiB
Bash
Executable file
120 lines
3.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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# group: rw quick
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#
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# Test preallocated resize of raw images
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#
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# Copyright (C) 2017 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# creator
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owner=hreitz@redhat.com
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seq=$(basename $0)
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echo "QA output created by $seq"
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment and filters
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. ./common.rc
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. ./common.filter
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_supported_fmt raw
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_supported_proto file fuse
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_supported_os Linux
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# in kB
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CREATION_SIZE=128
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GROWTH_SIZE=256
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echo '=== Testing image growth ==='
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for create_mode in off falloc full; do
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for growth_mode in off falloc full; do
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echo
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echo "--- create_mode=$create_mode growth_mode=$growth_mode ---"
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# Our calculation below assumes kilobytes as unit for the actual size.
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# Disable the extent size hint because it would give us a result in
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# megabytes.
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_make_test_img -o "preallocation=$create_mode,extent_size_hint=0" ${CREATION_SIZE}K
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$QEMU_IMG resize -f "$IMGFMT" --preallocation=$growth_mode "$TEST_IMG" +${GROWTH_SIZE}K
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expected_size=0
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if [ $create_mode != off ]; then
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expected_size=$CREATION_SIZE
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fi
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if [ $growth_mode != off ]; then
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expected_size=$((expected_size + $GROWTH_SIZE))
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fi
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actual_size=$($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" | grep 'disk size' | head -n 1)
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actual_size=$(echo "$actual_size" | sed -e 's/^[^0-9]*\([0-9]\+\).*$/\1/')
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# The actual size may exceed the expected size, depending on the file
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# system. Therefore we just test that the actual size is at least what
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# we expect.
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if [ $actual_size -lt $expected_size ]; then
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echo "ERROR: Image should have at least ${expected_size}K, but has ${actual_size}K"
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fi
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done
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done
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echo
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echo '=== Testing image shrinking ==='
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# None of this should work except for "off", because other modes cannot be used
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# for shrinking
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for growth_mode in falloc full off; do
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echo
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echo "--- growth_mode=$growth_mode ---"
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$QEMU_IMG resize -f "$IMGFMT" --shrink --preallocation=$growth_mode "$TEST_IMG" -${GROWTH_SIZE}K
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done
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echo
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echo '=== Testing image growth on 2G empty image ==='
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for growth_mode in falloc full; do
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echo
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echo "--- growth_mode=$growth_mode ---"
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# Maybe we want to do an lseek() to the end of the file before the
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# preallocation; if the file has a length of 2 GB, that would
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# return an integer that overflows to negative when put into a
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# plain int. We should use the correct type for the result, and
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# this tests we do.
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_make_test_img -o "extent_size_hint=0" 2G
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$QEMU_IMG resize -f "$IMGFMT" --preallocation=$growth_mode "$TEST_IMG" +${GROWTH_SIZE}K
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actual_size=$($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" | grep 'disk size' | head -n 1)
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actual_size=$(echo "$actual_size" | sed -e 's/^[^0-9]*\([0-9]\+\).*$/\1/')
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if [ $actual_size -lt $GROWTH_SIZE ]; then
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echo "ERROR: Image should have at least ${GROWTH_SIZE}K, but has ${actual_size}K"
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fi
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done
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# success, all done
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echo '*** done'
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rm -f $seq.full
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status=0
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