The ZFS Test Suite runs under the test-runner framework. This
framework is built along side the standard ZFS utilities and is included
as part of zfs-test package. The zfs-test package can be built from
source as follows:
$ ./configure
$ make pkg-utils
The resulting packages can be installed using the rpm or dpkg command
as appropriate for your distributions. Alternately, if you have
installed ZFS from a distributions repository (not from source) the
zfs-test package may be provided for your distribution.
- Installed from source
$ rpm -ivh ./zfs-test*.rpm, or
$ dpkg -i ./zfs-test*.deb,
- Installed from package repository
$ yum install zfs-test
$ apt-get install zfs-test
Running the ZFS Test Suite
The pre-requisites for running the ZFS Test Suite are:
Three scratch disks
Specify the disks you wish to use in the $DISKS variable, as a space
delimited list like this: DISKS='vdb vdc vdd'. By default the
zfs-tests.sh sciprt will construct three loopback devices to be used for
testing: DISKS='loop0 loop1 loop2'.
A non-root user with a full set of basic privileges and the ability
to sudo(8) to root without a password to run the test.
Specify any pools you wish to preserve as a space delimited list in
the $KEEP variable. All pools detected at the start of testing are added
automatically.
The ZFS Test Suite will add users and groups to test machine to
verify functionality. Therefore it is strongly advised that a dedicated
test machine, which can be a VM, be used for testing.
Once the pre-requisites are satisfied simply run the zfs-tests.sh
script:
$ /usr/share/zfs/zfs-tests.sh
Alternately, the zfs-tests.sh script can be run from the source tree
to allow developers to rapidly validate their work. In this mode the ZFS
utilities and modules from the source tree will be used (rather than
those installed on the system). In order to avoid certain types of
failures you will need to ensure the ZFS udev rules are installed. This
can be done manually or by ensuring some version of ZFS is installed on
the system.
$ ./scripts/zfs-tests.sh
The following zfs-tests.sh options are supported:
-v Verbose zfs-tests.sh output When specified additional
information describing the test environment will be logged
prior to invoking test-runner. This includes the runfile
being used, the DISKS targeted, pools to keep, etc.
-q Quiet test-runner output. When specified it is passed to
test-runner(1) which causes output to be written to the
console only for tests that do not pass and the results
summary.
-x Remove all testpools, dm, lo, and files (unsafe). When
specified the script will attempt to remove any leftover
configuration from a previous test run. This includes
destroying any pools named testpool, unused DM devices,
and loopback devices backed by file-vdevs. This operation
can be DANGEROUS because it is possible that the script
will mistakenly remove a resource not related to the testing.
-k Disable cleanup after test failure. When specified the
zfs-tests.sh script will not perform any additional cleanup
when test-runner exists. This is useful when the results of
a specific test need to be preserved for further analysis.
-f Use sparse files directly instead of loopback devices for
the testing. When running in this mode certain tests will
be skipped which depend on real block devices.
-c Only create and populate constrained path
-I NUM Number of iterations
-d DIR Create sparse files for vdevs in the DIR directory. By
default these files are created under /var/tmp/.
-s SIZE Use vdevs of SIZE (default: 4G)
-r RUNFILE Run tests in RUNFILE (default: linux.run)
-t PATH Run single test at PATH relative to test suite
-T TAGS Comma separated list of tags (default: 'functional')
-u USER Run single test as USER (default: root)
The ZFS Test Suite allows the user to specify a subset of the tests
via a runfile or list of tags.
The format of the runfile is explained in test-runner(1), and the
files that zfs-tests.sh uses are available for reference under
/usr/share/zfs/runfiles. To specify a custom runfile, use the -r
option:
$ /usr/share/zfs/zfs-tests.sh -r my_tests.run
Otherwise user can set needed tags to run only specific tests.
Test results
While the ZFS Test Suite is running, one informational line is
printed at the end of each test, and a results summary is printed at the
end of the run. The results summary includes the location of the
complete logs, which is logged in the form
/var/tmp/test_results/[ISO 8601 date]. A normal test run
launched with the zfs-tests.sh wrapper script will look
something like this:
