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https://github.com/libguestfs/libguestfs.git
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a1b3d8d04b
Apply this change across all the shell scripts containing tests. Additionally this defines the environment variables $abs_srcdir, $abs_builddir, $top_srcdir, $top_builddir, $abs_top_srcdir and $abs_top_builddir which can now be used throughout test scripts.
116 lines
3.1 KiB
Bash
Executable File
116 lines
3.1 KiB
Bash
Executable File
#!/bin/bash -
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# libguestfs
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# Copyright (C) 2016 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, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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# To test virt-tail, we run a guestfish instance which creates a disk
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# and a file in that disk. We then run virt-tail in parallel. Back
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# in the guestfish instance we append to the file, and we check that
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# the addenda are displayed by virt-tail.
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set -e
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set -x
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$TEST_FUNCTIONS
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skip_if_skipped
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# Libvirt screws with the SELinux labels, preventing guestfish from
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# continuing to write to the original disk. Therefore only run this
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# test when using direct access.
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skip_unless_backend direct
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out=test-virt-tail.out
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disk=test-virt-tail.disk
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rm -f $out $disk
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tailpid=0
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eval `guestfish --listen`
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# Clean up if the script is killed or exits early.
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cleanup ()
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{
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status=$?
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set +e
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guestfish --remote exit
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if [ "$tailpid" -gt 0 ]; then kill "$tailpid"; fi
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# Don't delete the output files if non-zero exit.
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if [ "$status" -eq 0 ]; then rm -f $disk $out; fi
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exit $status
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}
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trap cleanup INT QUIT TERM EXIT ERR
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# Create the output disk.
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guestfish --remote sparse $disk 10M
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guestfish --remote run
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guestfish --remote part-disk /dev/sda mbr
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guestfish --remote mkfs ext2 /dev/sda1
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guestfish --remote mount /dev/sda1 /
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# Create the file to be tailed with a single full line of content.
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guestfish --remote write /tail 'line 1
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'
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guestfish --remote sync
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# Run virt-tail in the background
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$VG virt-tail -a $disk -m /dev/sda1 /tail > $out &
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tailpid=$!
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# Wait for the first line of the tailed file to appear.
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# Note we can wait up to 10 minutes here to deal with slow machines.
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for retry in `seq 0 60`; do
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if grep -sq "line 1" $out; then break; fi
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sleep 10;
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done
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if [ "$retry" -ge 60 ]; then
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echo "$0: error: initial line of output did not appear"
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exit 1
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fi
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# Write some more lines to the file.
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guestfish --remote write-append /tail 'line 2
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line 3
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'
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guestfish --remote sync
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# Wait for new content to appear.
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for retry in `seq 0 60`; do
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if grep -sq "line 3" $out; then break; fi
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sleep 10;
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done
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if [ "$retry" -ge 60 ]; then
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echo "$0: error: continued output did not appear"
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exit 1
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fi
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# Delete the file. This should cause virt-tail to exit gracefully.
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guestfish --remote rm /tail
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# Wait for virt-tail to finish and check the status.
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wait "$tailpid"
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tailstatus=$?
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tailpid=0
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if [ "$tailstatus" -ne 0 ]; then
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echo "$0: error: non-zero exit status from virt-tail: $tailstatus"
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exit 1
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fi
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# cleanup() is called implicitly which cleans up everything.
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exit 0
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