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snapshot: Add tests of virsh -c test:///default snapshot*
Had this been in place earlier, I would have avoided the bugs in commit0baf6945and55c2ab3e. Writing the test required me to extend the power of virsh - creating enough snapshots to cause fanout requires enough input in a single session that adding comments and markers makes it easier to check that output is correct. It's still a bit odd that with test:///default, reverting to a snapshot changes the domain from running to paused (possibly a bug in how the test driver copied from the qemu driver) - but the important part is that the test is reproducible, and any future tweaks we make to snapshot code have less chance of breaking successful command sequences. Signed-off-by: Eric Blake <eblake@redhat.com> Acked-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Eric Blake
parent
2efb42e9ac
commit
280a2b41e6
@ -1,6 +1,6 @@
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## Process this file with automake to produce Makefile.in
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## Copyright (C) 2005-2015 Red Hat, Inc.
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## Copyright (C) 2005-2019 Red Hat, Inc.
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##
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## This library is free software; you can redistribute it and/or
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## modify it under the terms of the GNU Lesser General Public
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@ -410,6 +410,7 @@ libvirtd_test_scripts = \
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virsh-schedinfo \
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virsh-self-test \
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virt-admin-self-test \
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virsh-snapshot \
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virsh-start \
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virsh-undefine \
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virsh-uriprecedence \
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212
tests/virsh-snapshot
Executable file
212
tests/virsh-snapshot
Executable file
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#!/bin/sh
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# simple testing of snapshot APIs on test driver
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# Copyright (C) 2019 Red Hat, Inc.
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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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# 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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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see
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# <http://www.gnu.org/licenses/>.
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. "$(dirname $0)/test-lib.sh"
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if test "$VERBOSE" = yes; then
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set -x
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$abs_top_builddir/tools/virsh --version
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fi
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fail=0
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# The test driver loses states between restarts, so we perform a script
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# with some convenient markers for later post-processing of output.
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$abs_top_builddir/tools/virsh --connect test:///default >out 2>err '
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# Create a series of snapshots, with names that intentionally sort
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# differently by topology than by name. Use revert to create fanout.
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snapshot-create-as test s1
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snapshot-create-as test s3
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snapshot-create-as test s2
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snapshot-revert test s3
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snapshot-create-as test s6
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snapshot-create-as test s5
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snapshot-revert test s6
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snapshot-create-as test s4
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snapshot-revert test s1
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snapshot-create-as test s7
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snapshot-create-as test s8
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# Checking tree view (siblings sorted alphabetically)
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snapshot-list test --tree
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# Current was last one created, but we can change that
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snapshot-current test --name
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snapshot-current test s1
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snapshot-current test --name
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# Deleting current root leads to multiple roots, demonstrate list filtering
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snapshot-delete test --current
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echo --err marker
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snapshot-current test --name
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echo --err marker
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snapshot-list test --roots
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snapshot-list test --leaves
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snapshot-list test --parent --no-leaves
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snapshot-list test --from s3
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snapshot-list test --from s3 --descendants --name
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# More fun with delete flags, current node moves up to remaining parent
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snapshot-current test s4
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snapshot-delete test --children-only s6
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snapshot-current test --name
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snapshot-delete test --children s7
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snapshot-current test --name
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snapshot-delete test s6
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snapshot-current test --name
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# Now the tree is linear, so we have an unambiguous topological order
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snapshot-list test --name
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snapshot-list test --name --topological
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# Capture some XML for later redefine
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echo "<!--MarkerA-->"
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snapshot-dumpxml test s3
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echo "<!--MarkerB-->"
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snapshot-dumpxml test s2
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echo "<!--MarkerC-->"
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# All done
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' || fail=1
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# First part is expected output, --tree results in trailing spaces,
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# and snapshot-list produces timestamps
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sed 's/ *$//; s/[0-9-]\{10\} [0-9:.]* .[0-9]\{4\}/TIMESTAMP/;
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/MarkerA/,/MarkerC/d' < out > out.cooked || fail=1
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# Second part holds domain XMLs
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sed -n '/MarkerA/,/MarkerB/p' < out > s3.xml || fail=1
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sed -n '/MarkerB/,/MarkerC/p' < out > s2.xml || fail=1
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cat <<\EOF > exp || fail=1
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Domain snapshot s1 created
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Domain snapshot s3 created
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Domain snapshot s2 created
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Domain snapshot s6 created
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Domain snapshot s5 created
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Domain snapshot s4 created
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Domain snapshot s7 created
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Domain snapshot s8 created
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s1
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+- s3
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| |
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| +- s2
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| +- s6
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| +- s4
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| +- s5
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+- s7
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+- s8
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s8
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Snapshot s1 set as current
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s1
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Domain snapshot s1 deleted
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Name Creation Time State
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---------------------------------------------
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s3 TIMESTAMP running
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s7 TIMESTAMP paused
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Name Creation Time State
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---------------------------------------------
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s2 TIMESTAMP running
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s4 TIMESTAMP paused
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s5 TIMESTAMP paused
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s8 TIMESTAMP paused
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Name Creation Time State Parent
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------------------------------------------------------
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s3 TIMESTAMP running
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s6 TIMESTAMP paused s3
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s7 TIMESTAMP paused
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Name Creation Time State
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---------------------------------------------
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s2 TIMESTAMP running
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s6 TIMESTAMP paused
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s2
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s4
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s5
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s6
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Snapshot s4 set as current
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Domain snapshot s6 children deleted
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s6
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Domain snapshot s7 deleted
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s6
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Domain snapshot s6 deleted
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s3
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s2
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s3
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s3
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s2
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EOF
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compare exp out.cooked || fail=1
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cat <<EOF > exp || fail=1
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error: marker
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error: domain 'test' has no current snapshot
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error: marker
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EOF
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compare exp err || fail=1
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# Restore state with redefine
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$abs_top_builddir/tools/virsh -c test:///default >out 2>err <<EOF || fail=1
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# Redefine must be in topological order; this will fail
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snapshot-create test --redefine s2.xml
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echo --err marker
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# This is the right order
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snapshot-create test --redefine s3.xml
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snapshot-create test --redefine s2.xml --current
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snapshot-info test --current
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EOF
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cat <<\EOF > exp || fail=1
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Domain snapshot s3 created from 's3.xml'
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Domain snapshot s2 created from 's2.xml'
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Name: s2
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Domain: test
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Current: yes
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State: running
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Location: internal
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Parent: s3
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Children: 0
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Descendants: 0
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Metadata: yes
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EOF
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cat <<EOF > exp || fail=1
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error: invalid argument: parent s3 for snapshot s2 not found
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error: marker
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EOF
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compare exp err || fail=1
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(exit $fail); exit $fail
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