2022-02-10 02:55:12

by Frank Rowand

[permalink] [raw]
Subject: [PATCH v4 0/2] Documentation: dev-tools: clarify KTAP specification wording

From: Frank Rowand <[email protected]>

Clarify ambiguous wording in KTAP specification version 1.

Fix build warnings.

Changes since version 3
- Add Reviewed-by: Shuah Khan
- Add patch 2/2 to fix build warnings

Frank Rowand (2):
Documentation: dev-tools: clarify KTAP specification wording
Documentation: dev-tools: fix KTAP specification build warnings

Documentation/dev-tools/ktap.rst | 49 +++++++++++++++++++++-----------
1 file changed, 32 insertions(+), 17 deletions(-)

--
Frank Rowand <[email protected]>



2022-02-10 03:04:01

by Frank Rowand

[permalink] [raw]
Subject: [PATCH v4 2/2] Documentation: dev-tools: fix KTAP specification build warnings

From: Frank Rowand <[email protected]>

Convert "Major differences between TAP and KTAP" from a bullet list
to a table. The bullet list was being formatted as a single
paragraph.

Add missing required argument in code-block directives.

---

Table conversion suggested by Shuah.

Patch 2/2 not previously reviewed, so Reviewed-by tags not provided.

Changes since version 3
- Add this commit (patch 2/2) to the series

Signed-off-by: Frank Rowand <[email protected]>
---
Documentation/dev-tools/ktap.rst | 33 +++++++++++++++++---------------
1 file changed, 18 insertions(+), 15 deletions(-)

diff --git a/Documentation/dev-tools/ktap.rst b/Documentation/dev-tools/ktap.rst
index dfb3f10a8b2d..5ee735c6687f 100644
--- a/Documentation/dev-tools/ktap.rst
+++ b/Documentation/dev-tools/ktap.rst
@@ -68,7 +68,7 @@ Test case result lines
Test case result lines indicate the final status of a test.
They are required and must have the format:

-.. code-block::
+.. code-block:: none

<result> <number> [<description>][ # [<directive>] [<diagnostic data>]]

@@ -117,32 +117,32 @@ separator.

Example result lines include:

-.. code-block::
+.. code-block:: none

ok 1 test_case_name

The test "test_case_name" passed.

-.. code-block::
+.. code-block:: none

not ok 1 test_case_name

The test "test_case_name" failed.

-.. code-block::
+.. code-block:: none

ok 1 test # SKIP necessary dependency unavailable

The test "test" was SKIPPED with the diagnostic message "necessary dependency
unavailable".

-.. code-block::
+.. code-block:: none

not ok 1 test # TIMEOUT 30 seconds

The test "test" timed out, with diagnostic data "30 seconds".

-.. code-block::
+.. code-block:: none

ok 5 check return code # rcode=0

@@ -202,7 +202,7 @@ allowed to be either indented or not indented.

An example of a test with two nested subtests:

-.. code-block::
+.. code-block:: none

KTAP version 1
1..1
@@ -215,7 +215,7 @@ An example of a test with two nested subtests:

An example format with multiple levels of nested testing:

-.. code-block::
+.. code-block:: none

KTAP version 1
1..2
@@ -234,12 +234,15 @@ An example format with multiple levels of nested testing:
Major differences between TAP and KTAP
--------------------------------------

-Note the major differences between the TAP and KTAP specification:
-- yaml and json are not recommended in KTAP diagnostic messages
-- TODO directive not recognized in KTAP
-- KTAP allows for an arbitrary number of tests to be nested
-- TAP includes "Unknown lines" in the category of "Anything else"
-- TAP says "Unknown lines" are "incorrect"; KTAP allows "Unknown lines"
+================================================== ========= ===============
+Feature TAP KTAP
+================================================== ========= ===============
+yaml and json in diagnosic message ok not recommended
+TODO directive ok not recognized
+allows an arbitrary number of tests to be nested no yes
+"Unknown lines" are in category of "Anything else" yes no
+"Unknown lines" are incorrect allowed
+================================================== ========= ===============

The TAP14 specification does permit nested tests, but instead of using another
nested version line, uses a line of the form
@@ -247,7 +250,7 @@ nested version line, uses a line of the form

Example KTAP output
--------------------
-.. code-block::
+.. code-block:: none

KTAP version 1
1..1
--
Frank Rowand <[email protected]>


2022-02-10 03:14:04

by Frank Rowand

[permalink] [raw]
Subject: [PATCH v4 1/2] Documentation: dev-tools: clarify KTAP specification wording

From: Frank Rowand <[email protected]>

Add the spec version to the title line.

Explain likely source of "Unknown lines".

"Unknown lines" in nested tests are optionally indented.

Add "Unknown lines" items to differences between TAP & KTAP list

Reviewed-by: Tim Bird <[email protected]>
Reviewed-by: David Gow <[email protected]>
Reviewed-by: Shuah Khan <[email protected]>
Signed-off-by: Frank Rowand <[email protected]>

---
Changes since version 3
- Add reviewed by Shuah

Changes since version 2
- Add missing quote after word: incorrect
- Add Reviewed-by tags

Changes since version 1
- Explain likely source of "Unknown lines"
- "Unknown line" in nested tests are optionally indented
- Add "Unknown lines" items to differences between TAP & KTAP list

Documentation/dev-tools/ktap.rst | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/Documentation/dev-tools/ktap.rst b/Documentation/dev-tools/ktap.rst
index 878530cb9c27..dfb3f10a8b2d 100644
--- a/Documentation/dev-tools/ktap.rst
+++ b/Documentation/dev-tools/ktap.rst
@@ -1,8 +1,8 @@
.. SPDX-License-Identifier: GPL-2.0

-========================================
-The Kernel Test Anything Protocol (KTAP)
-========================================
+===================================================
+The Kernel Test Anything Protocol (KTAP), version 1
+===================================================

TAP, or the Test Anything Protocol is a format for specifying test results used
by a number of projects. It's website and specification are found at this `link
@@ -174,6 +174,13 @@ There may be lines within KTAP output that do not follow the format of one of
the four formats for lines described above. This is allowed, however, they will
not influence the status of the tests.

+This is an important difference from TAP. Kernel tests may print messages
+to the system console or a log file. Both of these destinations may contain
+messages either from unrelated kernel or userspace activity, or kernel
+messages from non-test code that is invoked by the test. The kernel code
+invoked by the test likely is not aware that a test is in progress and
+thus can not print the message as a diagnostic message.
+
Nested tests
------------

@@ -186,10 +193,13 @@ starting with another KTAP version line and test plan, and end with the overall
result. If one of the subtests fail, for example, the parent test should also
fail.

-Additionally, all result lines in a subtest should be indented. One level of
+Additionally, all lines in a subtest should be indented. One level of
indentation is two spaces: " ". The indentation should begin at the version
line and should end before the parent test's result line.

+"Unknown lines" are not considered to be lines in a subtest and thus are
+allowed to be either indented or not indented.
+
An example of a test with two nested subtests:

.. code-block::
@@ -225,9 +235,11 @@ Major differences between TAP and KTAP
--------------------------------------

Note the major differences between the TAP and KTAP specification:
-- yaml and json are not recommended in diagnostic messages
-- TODO directive not recognized
+- yaml and json are not recommended in KTAP diagnostic messages
+- TODO directive not recognized in KTAP
- KTAP allows for an arbitrary number of tests to be nested
+- TAP includes "Unknown lines" in the category of "Anything else"
+- TAP says "Unknown lines" are "incorrect"; KTAP allows "Unknown lines"

The TAP14 specification does permit nested tests, but instead of using another
nested version line, uses a line of the form
--
Frank Rowand <[email protected]>


2022-02-10 08:13:59

by David Gow

[permalink] [raw]
Subject: Re: [PATCH v4 2/2] Documentation: dev-tools: fix KTAP specification build warnings

On Thu, Feb 10, 2022 at 10:35 AM <[email protected]> wrote:
>
> From: Frank Rowand <[email protected]>
>
> Convert "Major differences between TAP and KTAP" from a bullet list
> to a table. The bullet list was being formatted as a single
> paragraph.
>
> Add missing required argument in code-block directives.
>
> ---
>
> Table conversion suggested by Shuah.
>
> Patch 2/2 not previously reviewed, so Reviewed-by tags not provided.
>
> Changes since version 3
> - Add this commit (patch 2/2) to the series
>
> Signed-off-by: Frank Rowand <[email protected]>
> ---

The table looks good to me, the "none" argument in code-block
directives is already fixed in another patch.

The table bits are:

Reviewed-by: David Gow <[email protected]>

Cheers,
-- David

> Documentation/dev-tools/ktap.rst | 33 +++++++++++++++++---------------
> 1 file changed, 18 insertions(+), 15 deletions(-)
>
> diff --git a/Documentation/dev-tools/ktap.rst b/Documentation/dev-tools/ktap.rst
> index dfb3f10a8b2d..5ee735c6687f 100644
> --- a/Documentation/dev-tools/ktap.rst
> +++ b/Documentation/dev-tools/ktap.rst
> @@ -68,7 +68,7 @@ Test case result lines
> Test case result lines indicate the final status of a test.
> They are required and must have the format:
>
> -.. code-block::
> +.. code-block:: none

These code-block changes were already submitted in:
https://lore.kernel.org/lkml/[email protected]/T/


>
> <result> <number> [<description>][ # [<directive>] [<diagnostic data>]]
>
> @@ -117,32 +117,32 @@ separator.
>
> Example result lines include:
>
> -.. code-block::
> +.. code-block:: none
>
> ok 1 test_case_name
>
> The test "test_case_name" passed.
>
> -.. code-block::
> +.. code-block:: none
>
> not ok 1 test_case_name
>
> The test "test_case_name" failed.
>
> -.. code-block::
> +.. code-block:: none
>
> ok 1 test # SKIP necessary dependency unavailable
>
> The test "test" was SKIPPED with the diagnostic message "necessary dependency
> unavailable".
>
> -.. code-block::
> +.. code-block:: none
>
> not ok 1 test # TIMEOUT 30 seconds
>
> The test "test" timed out, with diagnostic data "30 seconds".
>
> -.. code-block::
> +.. code-block:: none
>
> ok 5 check return code # rcode=0
>
> @@ -202,7 +202,7 @@ allowed to be either indented or not indented.
>
> An example of a test with two nested subtests:
>
> -.. code-block::
> +.. code-block:: none
>
> KTAP version 1
> 1..1
> @@ -215,7 +215,7 @@ An example of a test with two nested subtests:
>
> An example format with multiple levels of nested testing:
>
> -.. code-block::
> +.. code-block:: none
>
> KTAP version 1
> 1..2
> @@ -234,12 +234,15 @@ An example format with multiple levels of nested testing:
> Major differences between TAP and KTAP
> --------------------------------------
>
> -Note the major differences between the TAP and KTAP specification:
> -- yaml and json are not recommended in KTAP diagnostic messages
> -- TODO directive not recognized in KTAP
> -- KTAP allows for an arbitrary number of tests to be nested
> -- TAP includes "Unknown lines" in the category of "Anything else"
> -- TAP says "Unknown lines" are "incorrect"; KTAP allows "Unknown lines"
> +================================================== ========= ===============
> +Feature TAP KTAP
> +================================================== ========= ===============
> +yaml and json in diagnosic message ok not recommended
> +TODO directive ok not recognized
> +allows an arbitrary number of tests to be nested no yes
> +"Unknown lines" are in category of "Anything else" yes no
> +"Unknown lines" are incorrect allowed
> +================================================== ========= ===============

This looks good to me, thanks!

>
> The TAP14 specification does permit nested tests, but instead of using another
> nested version line, uses a line of the form
> @@ -247,7 +250,7 @@ nested version line, uses a line of the form
>
> Example KTAP output
> --------------------
> -.. code-block::
> +.. code-block:: none
>
> KTAP version 1
> 1..1
> --
> Frank Rowand <[email protected]>
>


Attachments:
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2022-02-10 21:14:24

by Kees Cook

[permalink] [raw]
Subject: Re: [PATCH v4 2/2] Documentation: dev-tools: fix KTAP specification build warnings

On Wed, Feb 09, 2022 at 08:35:19PM -0600, [email protected] wrote:
> From: Frank Rowand <[email protected]>
>
> Convert "Major differences between TAP and KTAP" from a bullet list
> to a table. The bullet list was being formatted as a single
> paragraph.
>
> Add missing required argument in code-block directives.
>
> ---
>
> Table conversion suggested by Shuah.
>
> Patch 2/2 not previously reviewed, so Reviewed-by tags not provided.
>
> Changes since version 3
> - Add this commit (patch 2/2) to the series
>
> Signed-off-by: Frank Rowand <[email protected]>

Reviewed-by: Kees Cook <[email protected]>

--
Kees Cook

2022-02-11 00:21:36

by Shuah Khan

[permalink] [raw]
Subject: Re: [PATCH v4 2/2] Documentation: dev-tools: fix KTAP specification build warnings

On 2/9/22 7:35 PM, [email protected] wrote:
> From: Frank Rowand <[email protected]>
>
> Convert "Major differences between TAP and KTAP" from a bullet list
> to a table. The bullet list was being formatted as a single
> paragraph.
>
> Add missing required argument in code-block directives.
>
> ---
>
> Table conversion suggested by Shuah.
>
> Patch 2/2 not previously reviewed, so Reviewed-by tags not provided.
>
> Changes since version 3
> - Add this commit (patch 2/2) to the series
>
> Signed-off-by: Frank Rowand <[email protected]>
> ---
> Documentation/dev-tools/ktap.rst | 33 +++++++++++++++++---------------
> 1 file changed, 18 insertions(+), 15 deletions(-)
>
> diff --git a/Documentation/dev-tools/ktap.rst b/Documentation/dev-tools/ktap.rst
> index dfb3f10a8b2d..5ee735c6687f 100644
> --- a/Documentation/dev-tools/ktap.rst
> +++ b/Documentation/dev-tools/ktap.rst
> @@ -68,7 +68,7 @@ Test case result lines
> Test case result lines indicate the final status of a test.
> They are required and must have the format:
>
> -.. code-block::
> +.. code-block:: none
>
> <result> <number> [<description>][ # [<directive>] [<diagnostic data>]]
>
> @@ -117,32 +117,32 @@ separator.
>
> Example result lines include:
>
> -.. code-block::
> +.. code-block:: none
>
> ok 1 test_case_name
>
> The test "test_case_name" passed.
>
> -.. code-block::
> +.. code-block:: none
>
> not ok 1 test_case_name
>
> The test "test_case_name" failed.
>
> -.. code-block::
> +.. code-block:: none
>
> ok 1 test # SKIP necessary dependency unavailable
>
> The test "test" was SKIPPED with the diagnostic message "necessary dependency
> unavailable".
>
> -.. code-block::
> +.. code-block:: none
>
> not ok 1 test # TIMEOUT 30 seconds
>
> The test "test" timed out, with diagnostic data "30 seconds".
>
> -.. code-block::
> +.. code-block:: none
>
> ok 5 check return code # rcode=0
>
> @@ -202,7 +202,7 @@ allowed to be either indented or not indented.
>
> An example of a test with two nested subtests:
>
> -.. code-block::
> +.. code-block:: none
>
> KTAP version 1
> 1..1
> @@ -215,7 +215,7 @@ An example of a test with two nested subtests:
>
> An example format with multiple levels of nested testing:
>
> -.. code-block::
> +.. code-block:: none
>
> KTAP version 1
> 1..2
> @@ -234,12 +234,15 @@ An example format with multiple levels of nested testing:
> Major differences between TAP and KTAP
> --------------------------------------
>
> -Note the major differences between the TAP and KTAP specification:
> -- yaml and json are not recommended in KTAP diagnostic messages
> -- TODO directive not recognized in KTAP
> -- KTAP allows for an arbitrary number of tests to be nested
> -- TAP includes "Unknown lines" in the category of "Anything else"
> -- TAP says "Unknown lines" are "incorrect"; KTAP allows "Unknown lines"
> +================================================== ========= ===============
> +Feature TAP KTAP
> +================================================== ========= ===============
> +yaml and json in diagnosic message ok not recommended
> +TODO directive ok not recognized
> +allows an arbitrary number of tests to be nested no yes
> +"Unknown lines" are in category of "Anything else" yes no
> +"Unknown lines" are incorrect allowed
> +================================================== ========= ===============
>
> The TAP14 specification does permit nested tests, but instead of using another
> nested version line, uses a line of the form
> @@ -247,7 +250,7 @@ nested version line, uses a line of the form
>
> Example KTAP output
> --------------------
> -.. code-block::
> +.. code-block:: none
>
> KTAP version 1
> 1..1
>

Table looks good. Thanks for adding it. The two patches could be
collapsed into one perhaps? Either way:

Reviewed-by: Shuah Khan <[email protected]>

thanks,
-- Shuah

2022-02-11 07:42:21

by Kees Cook

[permalink] [raw]
Subject: Re: [PATCH v4 1/2] Documentation: dev-tools: clarify KTAP specification wording

On Wed, Feb 09, 2022 at 08:35:18PM -0600, [email protected] wrote:
> From: Frank Rowand <[email protected]>
>
> Add the spec version to the title line.
>
> Explain likely source of "Unknown lines".
>
> "Unknown lines" in nested tests are optionally indented.
>
> Add "Unknown lines" items to differences between TAP & KTAP list
>
> Reviewed-by: Tim Bird <[email protected]>
> Reviewed-by: David Gow <[email protected]>
> Reviewed-by: Shuah Khan <[email protected]>
> Signed-off-by: Frank Rowand <[email protected]>

Thanks for nailing this down!

Reviewed-by: Kees Cook <[email protected]>

--
Kees Cook