tools: make sure that test groups are described in the documentation
authorDarrick J. Wong <>
Fri, 17 Sep 2021 00:39:35 +0000 (17:39 -0700)
committerEryu Guan <>
Sun, 26 Sep 2021 13:34:16 +0000 (21:34 +0800)
Create a file to document the purpose of each test group that is
currently defined in fstests, and change mkgroupfile to check that every
group mentioned in the tests is also mentioned in the documentation.

Signed-off-by: Darrick J. Wong <>
Reviewed-by: Amir Goldstein <>
Signed-off-by: Eryu Guan <>
doc/group-names.txt [new file with mode: 0644]

index 66b0ed05d97601f830587477f28bd4d1aad84df3..64d793850718b490c11978dbab51a597689128eb 100644 (file)
@@ -23,6 +23,26 @@ _register_cleanup()
        trap "${cleanup}exit \$status" EXIT HUP INT QUIT TERM $*
+# Make sure each group is in the documentation file.
+_check_groups() {
+       test -n "$GROUPNAME_DOC_FILE" || return 0
+       local testname="$(echo "$0" | sed -e 's/^.*tests\///g')"
+       declare -a missing=()
+       for group in "$@"; do
+               if ! grep -q "^${group}[[:space:]]" "$GROUPNAME_DOC_FILE"; then
+                       missing+=("\"${group}\"")
+               fi
+       done
+       test "${#missing}" -eq 0 && return 0
+       local suffix=
+       test "${#missing}" -gt 1 && suffix="s"
+       echo "$testname: group$suffix ${missing[@]} not mentioned in documentation." 1>&2
+       return 1
 # Prepare to run a fstest by initializing the required global variables to
 # their defaults, sourcing common functions, registering a cleanup function,
 # and removing the $seqres.full file.
@@ -42,6 +62,7 @@ _begin_fstest()
        # If we're only running the test to generate a group.list file,
        # spit out the group data and exit.
        if [ -n "$GENERATE_GROUPS" ]; then
+               _check_groups "$@" || exit 1
                echo "$seq $@"
                exit 0
diff --git a/doc/group-names.txt b/doc/group-names.txt
new file mode 100644 (file)
index 0000000..e8e3477
--- /dev/null
@@ -0,0 +1,135 @@
+======================= =======================================================
+Group Name:            Description:
+======================= =======================================================
+all                    All known tests, automatically generated by ./check at
+                       runtime
+auto                   Tests that should be run automatically.  These should
+                       not require more than ~5 minutes to run.
+quick                  Tests that should run in under 30 seconds.
+deprecated             Old tests that should not be run.
+acl                    Access Control Lists
+admin                  xfs_admin functionality
+aio                    general libaio async io tests
+atime                  file access time
+attr                   extended attributes
+attr2                  xfs v2 extended aributes
+balance                        btrfs tree rebalance
+bigtime                        timestamps beyond the year 2038
+blockdev               block device functionality
+broken                 broken tests
+cap                    Linux capabilities
+casefold               directory name casefolding
+ci                     ASCII case-insensitive directory name lookups
+clone                  FICLONE/FICLONERANGE ioctls
+clone_stress           stress testing FICLONE/FICLONERANGE
+collapse               fallocate FALLOC_FL_COLLAPSE_RANGE
+compress               file compression
+convert                        btrfs ext[34] conversion tool
+copy                   xfs_copy functionality
+copy_range             copy_file_range syscall
+copyup                 overlayfs copyup
+dangerous              dangerous test that can crash the system
+dangerous_bothrepair   fuzzers to evaluate xfs_scrub + xfs_repair repair
+dangerous_fuzzers      fuzzers that can crash your computer
+dangerous_norepair     fuzzers to evaluate kernel metadata verifiers
+dangerous_online_repair        fuzzers to evaluate xfs_scrub online repair
+dangerous_repair       fuzzers to evaluate xfs_repair offline repair
+dangerous_scrub                fuzzers to evaluate xfs_scrub checking
+data                   data loss checkers
+dax                    direct access mode for persistent memory files
+db                     xfs_db functional tests
+dedupe                 FIEDEDUPERANGE ioctl
+defrag                 filesystem defragmenters
+dir                    directory test functions
+dump                   dump and restore utilities
+eio                    IO error reporting
+encrypt                        encrypted file contents
+enospc                 ENOSPC error reporting
+exportfs               file handles
+filestreams            XFS filestreams allocator
+freeze                 filesystem freeze tests
+fsck                   general fsck tests
+fsmap                  FS_IOC_GETFSMAP ioctl
+fsr                    XFS free space reorganizer
+fuzzers                        filesystem fuzz tests
+growfs                 increasing the size of a filesystem
+hardlink               hardlinks
+health                 XFS health reporting
+idmapped               idmapped mount functionality
+inobtcount             XFS inode btree count tests
+insert                 fallocate FALLOC_FL_INSERT_RANGE
+ioctl                  general ioctl tests
+io_uring               general io_uring async io tests
+label                  filesystem labelling
+limit                  resource limits
+locks                  file locking
+log                    metadata logging
+logprint               xfs_logprint functional tests
+long_rw                        long-soak read write IO path exercisers
+metacopy               overlayfs metadata-only copy-up
+metadata               filesystem metadata update exercisers
+metadump               xfs_metadump/xfs_mdrestore functionality
+mkfs                   filesystem formatting tools
+mount                  mount option and functionality checks
+nested                 nested overlayfs instances
+nfs4_acl               NFSv4 access control lists
+nonsamefs              overlayfs layers on different filesystems
+online_repair          online repair functionality tests
+other                  dumping ground, do not add more tests to this group
+pattern                        specific IO pattern tests
+perms                  access control and permission checking
+pipe                   pipe functionality
+pnfs                   PNFS
+posix                  POSIX behavior conformance
+prealloc               fallocate for preallocating unwritten space
+preallocrw             fallocate, then read and write
+punch                  fallocate FALLOC_FL_PUNCH_HOLE
+qgroup                 btrfs qgroup feature
+quota                  filesystem usage quotas
+raid                   btrfs RAID
+realtime               XFS realtime volumes
+recoveryloop           crash recovery loops
+redirect               overlayfs redirect_dir feature
+remote                 dump and restore with a remote tape
+remount                        remounting filesystems
+rename                 rename system call
+repair                 xfs_repair functional tests
+replace                        btrfs device replace
+replay                 dm-logwrites replays
+resize                 resize2fs functionality tests
+richacl                        rich ACL feature
+rmap                   XFS reverse mapping exercisers
+rotate                 overlayfs upper layer rotate tests from the unionmount
+                       test suite
+rw                     read/write IO tests
+samefs                 overlayfs when all layers are on the same fs
+scrub                  filesystem metadata scrubbers
+seed                   btrfs seeded filesystems
+seek                   llseek functionality
+send                   btrfs send/receive
+shrinkfs               decreasing the size of a filesystem
+shutdown               FS_IOC_SHUTDOWN ioctl
+snapshot               btrfs snapshots
+soak                   long running soak tests of any kind
+spaceman               xfs_spaceman functional tests
+splice                 splice system call
+stress                 fsstress filesystem exerciser
+subvol                 btrfs subvolumes
+swap                   swap files
+symlink                        symbolic links
+tape                   dump and restore with a tape
+thin                   thin provisioning
+trim                   FITRIM ioctl
+udf                    UDF functionality tests
+union                  tests from the unionmount test suite
+unlink                 O_TMPFILE unlinked files
+unshare                        fallocate FALLOC_FL_UNSHARE_RANGE
+v2log                  XFS v2 log format tests
+verity                 fsverity
+volume                 btrfs volume management
+whiteout               overlayfs whiteout functionality
+xino                   overlayfs xino feature
+zero                   fallocate FALLOC_FL_ZERO_RANGE
+zone                   zoned (SMR) device support
+======================= =======================================================
index 0681e5d29d55635dbec1f1ca5c69bf545ffbb077..e424450790af560a53d1ed4cfcbcb2271f57ff93 100755 (executable)
@@ -9,12 +9,28 @@ fi
+GROUPNAME_DOC_FILE="$(readlink -m ../../doc/group-names.txt)"
 if [ ! -x ../../check ]; then
        echo "$0: Run this from tests/XXX/."
        exit 1
+cleanup() {
+       test -z "$groupfile" && return
+       test -z "$ngroupfile" && return
+       if [ $ret -eq 0 ]; then
+               mv "$ngroupfile" "$groupfile"
+       else
+               rm -f "$ngroupfile"
+       fi
+ret=1  # trigger cleanup of temporary files unless we succeed
+trap 'cleanup; exit $ret' EXIT INT TERM QUIT
 generate_groupfile() {
        cat << ENDL
 # QA groups control file, automatically generated.
@@ -24,19 +40,20 @@ ENDL
        cd ../../
        export GENERATE_GROUPS=yes
        grep -R -l "^_begin_fstest" "$test_dir/" 2>/dev/null | while read testfile; do
-               test -x "$testfile" && "$testfile"
+               test -x "$testfile" && "$testfile" || return 1
        done | sort -g
+       ret="${PIPESTATUS[1]}"
        cd "$test_dir"
 if [ -z "$groupfile" ] || [ "$groupfile" = "-" ]; then
        # Dump the group file to stdout and exit
+       unset groupfile
-       exit 0
+       # Otherwise, write the group file to disk somewhere.
+       ngroupfile="${groupfile}.new"
+       rm -f "$ngroupfile"
+       generate_groupfile >> "$ngroupfile"
+       # let cleanup rename or delete ngroupfile
-# Otherwise, write the group file to disk somewhere.
-rm -f "$ngroupfile"
-generate_groupfile >> "$ngroupfile"
-mv "$ngroupfile" "$groupfile"