_______________________ BUILDING THE FSQA SUITE _______________________ Building Linux: - cd into the xfstests directory - run make - run make install Building IRIX: - cd into the xfstests directory - set the ROOT and TOOLROOT env variables for IRIX appropriately - run ./make_irix ______________________ USING THE FSQA SUITE ______________________ Preparing system for tests (IRIX and Linux): - compile XFS into your kernel or load XFS modules - install user tools including mkfs.xfs, xfs_db & xfs_bmap - If you wish to run the udf components of the suite install mkfs_udf and udf_db for IRIX and mkudffs for Linux. Also download and build the Philips UDF Verification Software from http://www.extra.research.philips.com/udf/, then copy the udf_test binary to xfstests/src/. If you wish to disable UDF verification test set the environment variable DISABLE_UDF_TEST to 1. - create one or two partitions to use for testing - one TEST partition - format as XFS, mount & optionally populate with NON-IMPORTANT stuff - one SCRATCH partition (optional) - leave empty and expect this partition to be clobbered by some tests. If this is not provided, many tests will not be run. (SCRATCH and TEST must be two DIFFERENT partitions) OR - for btrfs only: some btrfs test cases will need 3 or more independent SCRATCH disks which should be set using SCRATCH_DEV_POOL (for eg: SCRATCH_DEV_POOL="/dev/sda /dev/sdb /dev/sdc") with which SCRATCH_DEV should be unused by the tester, and for the legacy support SCRATCH_DEV will be set to the first disk of the SCRATCH_DEV_POOL by xfstests script. - setup your environment - setenv TEST_DEV "device containing TEST PARTITION" - setenv TEST_DIR "mount point of TEST PARTITION" - optionally: - setenv SCRATCH_DEV "device containing SCRATCH PARTITION" OR (btrfs only) setenv SCRATCH_DEV_POOL "to 3 or more SCRATCH disks for testing btrfs raid concepts" - setenv SCRATCH_MNT "mount point for SCRATCH PARTITION" - setenv TAPE_DEV "tape device for testing xfsdump" - setenv RMT_TAPE_DEV "remote tape device for testing xfsdump" - setenv RMT_IRIXTAPE_DEV "remote IRIX tape device for testing xfsdump" - setenv SCRATCH_LOGDEV "device for scratch-fs external log" - setenv SCRATCH_RTDEV "device for scratch-fs realtime data" - setenv TEST_LOGDEV "device for test-fs external log" - setenv TEST_RTDEV "device for test-fs realtime data" - if TEST_LOGDEV and/or TEST_RTDEV, these will always be used. - if SCRATCH_LOGDEV and/or SCRATCH_RTDEV, the USE_EXTERNAL environment variable set to "yes" will enable their use. - setenv DIFF_LENGTH "number of diff lines to print from a failed test", by default 10, set to 0 to print the full diff - setenv FSTYP "the filesystem you want to test", the filesystem type is devised from the TEST_DEV device, but you may want to override it; if unset, the default is 'xfs' - or add a case to the switch in common/config assigning these variables based on the hostname of your test machine - or add these variables to a file called local.config and keep that file in your workarea. - if testing xfsdump, make sure the tape devices have a tape which can be overwritten. - make sure $TEST_DEV is a mounted XFS partition - make sure that $SCRATCH_DEV or $SCRATCH_DEV_POOL contains nothing useful Running tests: - cd xfstests - By default the tests suite will run xfs tests: - ./check '*/001' '*/002' '*/003' - ./check '*/06?' - You can explicitly specify NFS, otherwise the filesystem type will be autodetected from $TEST_DEV: ./check -nfs [test(s)] - Groups of tests maybe ran by: ./check -g [group(s)] See the 'group' file for details on groups - for udf tests: ./check -udf [test(s)] Running all the udf tests: ./check -udf -g udf - for running nfs tests: ./check -nfs [test(s)] - To randomize test order: ./check -r [test(s)] The check script tests the return value of each script, and compares the output against the expected output. If the output is not as expected, a diff will be output and an .out.bad file will be produced for the failing test. Unexpected console messages, crashes and hangs may be considered to be failures but are not necessarily detected by the QA system. __________________________ ADDING TO THE FSQA SUITE __________________________ Creating new tests scripts: Use the "new" script. Test script environment: When developing a new test script keep the following things in mind. All of the environment variables and shell procedures are available to the script once the "common/rc" file has been sourced. 1. The tests are run from an arbitrary directory. If you want to do operations on an XFS filesystem (good idea, eh?), then do one of the following: (a) Create directories and files at will in the directory $TEST_DIR ... this is within an XFS filesystem and world writeable. You should cleanup when your test is done, e.g. use a _cleanup shell procedure in the trap ... see 001 for an example. If you need to know, the $TEST_DIR directory is within the filesystem on the block device $TEST_DEV. (b) mkfs a new XFS filesystem on $SCRATCH_DEV, and mount this on $SCRATCH_MNT. Call the the _require_scratch function on startup if you require use of the scratch partition. _require_scratch does some checks on $SCRATCH_DEV & $SCRATCH_MNT and makes sure they're unmounted. You should cleanup when your test is done, and in particular unmount $SCRATCH_MNT. Tests can make use of $SCRATCH_LOGDEV and $SCRATCH_RTDEV for testing external log and realtime volumes - however, these tests need to simply "pass" (e.g. cat $seq.out; exit - or default to an internal log) in the common case where these variables are not set. 2. You can safely create temporary files that are not part of the filesystem tests (e.g. to catch output, prepare lists of things to do, etc.) in files named $tmp.. The standard test script framework created by "new" will initialize $tmp and cleanup on exit. 3. By default, tests are run as the same uid as the person executing the control script "check" that runs the test scripts. If you need to be root, add a call to the shell procedure _need_to_be_root ... this will do nothing or exit with an error message depending on your current uid. 4. Some other useful shell procedures: _get_fqdn - echo the host's fully qualified domain name _get_pids_by_name - one argument is a process name, and return all of the matching pids on standard output _within_tolerance - fancy numerical "close enough is good enough" filter for deterministic output ... see comments in common/filter for an explanation _filter_date - turn ctime(3) format dates into the string DATE for deterministic output _cat_passwd, - dump the content of the password _cat_group or group file (both the local file and the content of the NIS database if it is likely to be present) 5. General recommendations, usage conventions, etc.: - When the content of the password or group file is required, get it using the _cat_passwd and _cat_group functions, to ensure NIS information is included if NIS is active. - When calling getfacl in a test, pass the "-n" argument so that numeric rather than symbolic identifiers are used in the output. Verified output: Each test script has a numerical name, e.g. 007, and an associated verified output, e.g. 007.out. It is important that the verified output is deterministic, and part of the job of the test script is to filter the output to make this so. Examples of the sort of things that need filtering: - dates - pids - hostnames - filesystem names - timezones - variable directory contents - imprecise numbers, especially sizes and times Pass/failure: The script "check" may be used to run one or more tests. Test number $seq is deemed to "pass" when: (a) no "core" file is created, (b) the file $seq.notrun is not created, (c) the exit status is 0, and (d) the output matches the verified output. In the "not run" case (b), the $seq.notrun file should contain a short one-line summary of why the test was not run. The standard output is not checked, so this can be used for a more verbose explanation and to provide feedback when the QA test is run interactively. To force a non-zero exit status use: status=1 exit Note that: exit 1 won't have the desired effect because of the way the exit trap works. The recent pass/fail history is maintained in the file "check.log". The elapsed time for the most recent pass for each test is kept in "check.time".