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Registered in England and Wales under Company Registration No. 3798903 Subject: [PATCH 2/2] xfstests: Partially expand the documentation From: David Howells To: linux-xfs@vger.kernel.org Cc: hch@infradead.org, amir73il@gmail.com, david@fromorbit.com, fstests@vger.kernel.org, dhowells@redhat.com, linux-fsdevel@vger.kernel.org Date: Fri, 31 Mar 2017 16:08:42 +0100 Message-ID: <149097292222.20089.18240501624778225939.stgit@warthog.procyon.org.uk> In-Reply-To: <149097291264.20089.7010494679305716312.stgit@warthog.procyon.org.uk> References: <149097291264.20089.7010494679305716312.stgit@warthog.procyon.org.uk> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Fri, 31 Mar 2017 15:08:45 +0000 (UTC) Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Partially expand the documentation available in xfstests to include requirements checking and auxiliary programs for testing. Signed-off-by: David Howells Reviewed-by: Christoph Hellwig --- doc/auxiliary-programs.txt | 45 +++++++++++++++++++++++++++ doc/requirement-checking.txt | 69 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 114 insertions(+) create mode 100644 doc/auxiliary-programs.txt create mode 100644 doc/requirement-checking.txt -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/doc/auxiliary-programs.txt b/doc/auxiliary-programs.txt new file mode 100644 index 0000000..d5cc1cc --- /dev/null +++ b/doc/auxiliary-programs.txt @@ -0,0 +1,45 @@ + ============================== + AUXILIARY PROGRAMS FOR TESTING + ============================== + +Not everything a test script can do is easily done within a test script; +sometimes it makes a lot more sense to write auxiliary program in C and have +the test script call them. Auxiliary commands can be found in the src/ +directory and in other packages. + +Contents: + + - stat_test -- statx syscall exercise + - xfs_io -- General I/O operation exercise + + +================== +QUICK DESCRIPTIONS +================== + +stat_test + + The stat_test program is primarily designed to exercise the statx() + system call. It can check statx() against fstatat() and it can + compare and check various file attributes. + + See also: + _require_statx + + +xfs_io + + The xfs_io program can be found in the xfsprogs package and can be used + to perform sequences of I/O commands, though it is limited to what it + can do on open files. + + xfs_io is a debugging tool that is aimed at examining regular file I/O + paths rather than a raw XFS volume itself. These code paths include + not only the obvious read/write/mmap interfaces for manipulating files, + but also cover all of the XFS extensions (such as space preallocation, + additional inode flags, etc). + + Most of its commands can also be used with other filesystems. + + See also: + _require_xfs_io_command diff --git a/doc/requirement-checking.txt b/doc/requirement-checking.txt new file mode 100644 index 0000000..29f0b74 --- /dev/null +++ b/doc/requirement-checking.txt @@ -0,0 +1,69 @@ + ======================================== + TESTING FOR REQUIREMENTS IN TEST SCRIPTS + ======================================== + +Test scripts need to indicate to the infrastructure what sorts of requirements +they have. This is done with _require_ macros, which may take parameters. + + (1) General requirements. + + _require_command + _require_test + _require_test_program + _require_xfs_io_command + + (2) System call requirements. + + _require_statx + + +==================== +GENERAL REQUIREMENTS +==================== + +_require_command "$VAR" name + + The test requires an external command, called 'name' be present on the + system and that '$VAR' should be set with the path to that command. $VAR + should then be used to refer to the command when executing it. For + example: + + _require_command "$NC_PROG" "nc" + + to locate the netcat command and then: + + $NC_PROG -U -l $TEST_DIR/$seq-sock + + to make use of it. + + +_require_test + + The test requires that the block device specified by $TEST_DEV be mounted + on $TEST_DIR. + + +_require_test_program "name" + + The test requires a program by the name of 'name' be present and built in + the src/ directory. For example: + + _require_test_program "stat_test" + + requires that src/stat_test be built. + + +_require_xfs_io_command "falloc" + + The test requires that the xfs_io command be available and that it support + the 'falloc' command. + + +======================== +SYSTEM CALL REQUIREMENTS +======================== + +_require_statx + + The test requires the use of the statx() system call and will be skipped + if it isn't available in the kernel.