57284d2ada
Many tests (that do not support generic protocols) can run just fine with FUSE-exported images, so allow them to. Note that this is no attempt at being definitely complete. There are some tests that might be modified to run on FUSE, but this patch still skips them. This patch only tries to pick the rather low-hanging fruits. Note that 221 and 250 only pass when .lseek is correctly implemented, which is only possible with a libfuse that is 3.8 or newer. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20201027190600.192171-20-mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
125 lines
3.5 KiB
Bash
Executable File
125 lines
3.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Tests for rebasing COW images that require zero cluster support
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#
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# Copyright (C) 2019 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=mreitz@redhat.com
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seq=$(basename $0)
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echo "QA output created by $seq"
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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_rm_test_img "$TEST_IMG.base_new"
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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. ./common.pattern
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# Currently only qcow2 and qed support rebasing, and only qcow2 v3 has
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# zero cluster support
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_supported_fmt qcow2
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_unsupported_imgopts 'compat=0.10'
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_supported_proto file fuse
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_supported_os Linux
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CLUSTER_SIZE=65536
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echo
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echo "=== Test rebase without input base ==="
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echo
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# Cluster allocations to be tested:
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#
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# Backing (new) 11 -- 11 -- 11 --
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# COW image 22 22 11 11 -- --
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#
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# Expected result:
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#
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# COW image 22 22 11 11 00 --
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#
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# (Cluster 2 might be "--" after the rebase, too, but rebase just
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# compares the new backing file to the old one and disregards the
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# overlay. Therefore, it will never discard overlay clusters.)
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_make_test_img $((6 * CLUSTER_SIZE))
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TEST_IMG="$TEST_IMG.base_new" _make_test_img $((6 * CLUSTER_SIZE))
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echo
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$QEMU_IO "$TEST_IMG" \
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-c "write -P 0x22 $((0 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
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-c "write -P 0x11 $((2 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
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| _filter_qemu_io
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$QEMU_IO "$TEST_IMG.base_new" \
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-c "write -P 0x11 $((0 * CLUSTER_SIZE)) $CLUSTER_SIZE" \
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-c "write -P 0x11 $((2 * CLUSTER_SIZE)) $CLUSTER_SIZE" \
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-c "write -P 0x11 $((4 * CLUSTER_SIZE)) $CLUSTER_SIZE" \
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| _filter_qemu_io
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echo
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# This should be a no-op
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$QEMU_IMG rebase -b "" "$TEST_IMG"
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# Verify the data is correct
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$QEMU_IO "$TEST_IMG" \
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-c "read -P 0x22 $((0 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
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-c "read -P 0x11 $((2 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
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-c "read -P 0x00 $((4 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
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| _filter_qemu_io
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echo
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# Verify the allocation status (first four cluster should be allocated
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# in TEST_IMG, clusters 4 and 5 should be unallocated (marked as zero
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# clusters here because there is no backing file))
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$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
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echo
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$QEMU_IMG rebase -b "$TEST_IMG.base_new" -F $IMGFMT "$TEST_IMG"
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# Verify the data is correct
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$QEMU_IO "$TEST_IMG" \
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-c "read -P 0x22 $((0 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
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-c "read -P 0x11 $((2 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
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-c "read -P 0x00 $((4 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
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| _filter_qemu_io
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echo
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# Verify the allocation status (first four cluster should be allocated
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# in TEST_IMG, cluster 4 should be zero, and cluster 5 should be
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# unallocated (signified by '"depth": 1'))
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$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
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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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