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author | Max Reitz <mreitz@redhat.com> | 2019-05-09 19:52:37 +0200 |
---|---|---|
committer | Kevin Wolf <kwolf@redhat.com> | 2019-05-10 16:45:40 +0200 |
commit | 11f6fc50e7501b5f5d04100ea1c21fa8f1cf7b53 (patch) | |
tree | 67e4cadaf991c9816be2313b243467722e366f7a /tests | |
parent | 1c6e87799252d166426f642c00be8927b68ab164 (diff) | |
download | qemu-11f6fc50e7501b5f5d04100ea1c21fa8f1cf7b53.zip qemu-11f6fc50e7501b5f5d04100ea1c21fa8f1cf7b53.tar.gz qemu-11f6fc50e7501b5f5d04100ea1c21fa8f1cf7b53.tar.bz2 |
iotests: Add test for rebase without input base
This patch adds a test for rebasing an image that currently does not
have a backing file.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'tests')
-rwxr-xr-x | tests/qemu-iotests/252 | 124 | ||||
-rw-r--r-- | tests/qemu-iotests/252.out | 39 | ||||
-rw-r--r-- | tests/qemu-iotests/group | 1 |
3 files changed, 164 insertions, 0 deletions
diff --git a/tests/qemu-iotests/252 b/tests/qemu-iotests/252 new file mode 100755 index 0000000..f6c8f71 --- /dev/null +++ b/tests/qemu-iotests/252 @@ -0,0 +1,124 @@ +#!/usr/bin/env bash +# +# Tests for rebasing COW images that require zero cluster support +# +# Copyright (C) 2019 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 $seq" + +status=1 # failure is the default! + +_cleanup() +{ + _cleanup_test_img + rm -f "$TEST_IMG.base_new" +} +trap "_cleanup; exit \$status" 0 1 2 3 15 + +# get standard environment, filters and checks +. ./common.rc +. ./common.filter +. ./common.pattern + +# Currently only qcow2 and qed support rebasing, and only qcow2 v3 has +# zero cluster support +_supported_fmt qcow2 +_unsupported_imgopts 'compat=0.10' +_supported_proto file +_supported_os Linux + +CLUSTER_SIZE=65536 + +echo +echo "=== Test rebase without input base ===" +echo + +# Cluster allocations to be tested: +# +# Backing (new) 11 -- 11 -- 11 -- +# COW image 22 22 11 11 -- -- +# +# Expected result: +# +# COW image 22 22 11 11 00 -- +# +# (Cluster 2 might be "--" after the rebase, too, but rebase just +# compares the new backing file to the old one and disregards the +# overlay. Therefore, it will never discard overlay clusters.) + +_make_test_img $((6 * CLUSTER_SIZE)) +TEST_IMG="$TEST_IMG.base_new" _make_test_img $((6 * CLUSTER_SIZE)) + +echo + +$QEMU_IO "$TEST_IMG" \ + -c "write -P 0x22 $((0 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ + -c "write -P 0x11 $((2 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ + | _filter_qemu_io + +$QEMU_IO "$TEST_IMG.base_new" \ + -c "write -P 0x11 $((0 * CLUSTER_SIZE)) $CLUSTER_SIZE" \ + -c "write -P 0x11 $((2 * CLUSTER_SIZE)) $CLUSTER_SIZE" \ + -c "write -P 0x11 $((4 * CLUSTER_SIZE)) $CLUSTER_SIZE" \ + | _filter_qemu_io + +echo + +# This should be a no-op +$QEMU_IMG rebase -b "" "$TEST_IMG" + +# Verify the data is correct +$QEMU_IO "$TEST_IMG" \ + -c "read -P 0x22 $((0 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ + -c "read -P 0x11 $((2 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ + -c "read -P 0x00 $((4 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ + | _filter_qemu_io + +echo + +# Verify the allocation status (first four cluster should be allocated +# in TEST_IMG, clusters 4 and 5 should be unallocated (marked as zero +# clusters here because there is no backing file)) +$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map + +echo + +$QEMU_IMG rebase -b "$TEST_IMG.base_new" "$TEST_IMG" + +# Verify the data is correct +$QEMU_IO "$TEST_IMG" \ + -c "read -P 0x22 $((0 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ + -c "read -P 0x11 $((2 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ + -c "read -P 0x00 $((4 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \ + | _filter_qemu_io + +echo + +# Verify the allocation status (first four cluster should be allocated +# in TEST_IMG, cluster 4 should be zero, and cluster 5 should be +# unallocated (signified by '"depth": 1')) +$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map + + +# success, all done +echo "*** done" +rm -f $seq.full +status=0 diff --git a/tests/qemu-iotests/252.out b/tests/qemu-iotests/252.out new file mode 100644 index 0000000..12dce88 --- /dev/null +++ b/tests/qemu-iotests/252.out @@ -0,0 +1,39 @@ +QA output created by 252 + +=== Test rebase without input base === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=393216 +Formatting 'TEST_DIR/t.IMGFMT.base_new', fmt=IMGFMT size=393216 + +wrote 131072/131072 bytes at offset 0 +128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 131072/131072 bytes at offset 131072 +128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 131072 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 262144 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +read 131072/131072 bytes at offset 0 +128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +read 131072/131072 bytes at offset 131072 +128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +read 131072/131072 bytes at offset 262144 +128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +[{ "start": 0, "length": 262144, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, +{ "start": 262144, "length": 131072, "depth": 0, "zero": true, "data": false}] + +read 131072/131072 bytes at offset 0 +128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +read 131072/131072 bytes at offset 131072 +128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +read 131072/131072 bytes at offset 262144 +128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +[{ "start": 0, "length": 262144, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, +{ "start": 262144, "length": 65536, "depth": 0, "zero": true, "data": false}, +{ "start": 327680, "length": 65536, "depth": 1, "zero": true, "data": false}] +*** done diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group index 7ac9a5e..00e474a 100644 --- a/tests/qemu-iotests/group +++ b/tests/qemu-iotests/group @@ -249,3 +249,4 @@ 247 rw auto quick 248 rw auto quick 249 rw auto quick +252 rw auto backing quick |