diff options
| -rw-r--r-- | without-tests | 1 | ||||
| -rw-r--r-- | yarns/fuse.yarn | 85 | ||||
| -rw-r--r-- | yarns/obnam.sh | 35 |
3 files changed, 121 insertions, 0 deletions
diff --git a/without-tests b/without-tests index 56e50bbf..8364d849 100644 --- a/without-tests +++ b/without-tests @@ -29,3 +29,4 @@ ./.pc/debian-changes-0.22-2/obnamlib/plugins/restore_plugin.py obnamlib/plugins/convert5to6_plugin.py obnamlib/repo_interface.py +obnamlib/plugins/fuse_plugin.py diff --git a/yarns/fuse.yarn b/yarns/fuse.yarn new file mode 100644 index 00000000..92253d12 --- /dev/null +++ b/yarns/fuse.yarn @@ -0,0 +1,85 @@ +Black box testing for the Obnam FUSE plugin +=========================================== + +The FUSE plugin gives read-only access to a backup repository. +There's a lot of potential corner cases here, but for now, this +test suite concentrates on verifying that at least the basics work. + + SCENARIO Browsing backups with FUSE plugin + ASSUMING user is in group fuse + GIVEN a live data directory + AND a 0 byte file called empty + AND a 1 byte file called one + AND a 4096 byte file called 4k + AND a 10485760 byte file called 10meg + AND a hardlink to 4k called 4k-hardlink + AND a symlink to 4k called 4k-symlink + AND a directory called some-dir + AND a symlink to ../4k called some-dir/other-symlink + WHEN live data is backed up + AND repository is fuse mounted + THEN latest generation can be copied correctly from fuse mount + FINALLY unmount repository + +The following sections implement the various steps. We use +`$DATADIR/live` for the live data, `$DATADIR/repo` for the repository, +and `$DATADIR/mount` as the FUSE mount point. + +We can only run this test if the user is in the fuse group. This may +be a portability concern: this works in Debian GNU/Linux, but might be +different in other Linux distros, or on non-Linux systems. + + IMPLEMENTS ASSUMING user is in group (\S+) + groups | tr ' ' '\n' | grep -Fx "$MATCH_1" + + IMPLEMENTS GIVEN a live data directory + mkdir "$DATADIR/live" + + IMPLEMENTS GIVEN a (\d+) byte file called (\S+) + dd if=/dev/zero of="$DATADIR/live/$MATCH_2" bs=1 count="$MATCH_1" + + IMPLEMENTS GIVEN a hardlink to (\S+) called (\S+) + ln "$DATADIR/live/$MATCH_1" "$DATADIR/live/$MATCH_2" + + IMPLEMENTS GIVEN a symlink to (\S+) called (\S+) + ln -s "$DATADIR/live/$MATCH_1" "$DATADIR/live/$MATCH_2" + + IMPLEMENTS GIVEN a directory called (\S+) + mkdir "$DATADIR/live/$MATCH_1" + +We do the backup, and verify that it can be accessed correctly, by +doing a "manifest" of the live data before the backup, and then +against the fuse mount, and comparing the two manifests. + +`manifest` (a shell function in `obnam.sh`) runs summain with useful +parameters. It's used twice, and the parameters need to be the same +so the results can be compared with diff. summain is a manifest tool. +`manifest` additionally mangles the mtime output to be full seconds +only: for whatever reason, the fuse mount only shows full seconds. +This may be a bug (FIXME: find out if it is). + +`run_obnam` is another shell function, which runs Obnam without the +user's configuration files. We don't want the user's configuration to +affect the test suite. + + IMPLEMENTS WHEN live data is backed up + manifest "$DATADIR/live" > "$DATADIR/live.summain" + run_obnam backup -r "$DATADIR/repo" "$DATADIR/live" + + IMPLEMENTS WHEN repository is fuse mounted + run_obnam clients -r "$DATADIR/repo" + mkdir "$DATADIR/mount" + run_obnam mount -r "$DATADIR/repo" --to "$DATADIR/mount" --viewmode multiple + + IMPLEMENTS THEN latest generation can be copied correctly from fuse mount + manifest "$DATADIR/mount/latest/$DATADIR/live" > "$DATADIR/latest.summain" + diff -u "$DATADIR/live.summain" "$DATADIR/latest.summain" + +If we did do the fuse mount, **always** unmount it, even when a step +failed. We do not want failed test runs to leavo mounts lying around. + + IMPLEMENTS FINALLY unmount repository + if [ -e "$DATADIR/mount" ] + then + fusermount -u "$DATADIR/mount" + fi diff --git a/yarns/obnam.sh b/yarns/obnam.sh new file mode 100644 index 00000000..9de72ba7 --- /dev/null +++ b/yarns/obnam.sh @@ -0,0 +1,35 @@ +# Copyright 2013 Lars Wirzenius +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# +# =*= License: GPL-3+ =*= + + +# Run Obnam in a safe way that ignore's any configuration files outside +# the test. + +run_obnam() +{ + ./obnam --no-default-config "$@" +} + + +# Create a manifest with summain of a directory. + +manifest() +{ + summain -r "$1" --exclude Ino --exclude Dev | + sed '/^Mtime:/s/\.[0-9]* / /' +} + |