From patchwork Wed Dec 20 15:19:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Berg X-Patchwork-Id: 756678 Received: from sipsolutions.net (s3.sipsolutions.net [168.119.38.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8897040BE6; Wed, 20 Dec 2023 15:20:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sipsolutions.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sipsolutions.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sipsolutions.net header.i=@sipsolutions.net header.b="YTqUxHtN" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=W5hxP9oFdtDFqqJO1sVaS6MGFtxN/uLe2GvjEDxA++M=; t=1703085601; x=1704295201; b=YTqUxHtN/cc5Qi1Oek2U9vitn7bk4MGRWlROCKkSRxaHlZH UgbrKWoTvXVJT4wZZx/vqF3LkukbnY2kTJmCQYdIneUtykwjbJT3QSSjXiuDI2ZRpLrednXz1g/Eo 1di9FBEfP2zeSN6v7XCuTCtownKoixB/TLGmMcIdsdokZDpppD4vsAjKvQFO3/z7PVRe3X04vXjLn S4XNxFbY2JNGqrpkFdj4Ao4870YDmsprbIME31d5HzIBfXoa4WWlgPAnBHZLwHweac+yODhsomyby Aek/yjwbwlC/IQFgqVJKZoNIFInVKPAGqfzV1skBgFLPN/C5Xhj6Rtlzdo4RPfjg==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.97) (envelope-from ) id 1rFyMY-00000001WFz-1Fmg; Wed, 20 Dec 2023 16:19:58 +0100 From: benjamin@sipsolutions.net To: linux-wireless@vger.kernel.org, linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com Cc: Benjamin Berg Subject: [PATCH 1/6] kunit: add parameter generation macro using description from array Date: Wed, 20 Dec 2023 16:19:47 +0100 Message-ID: <20231220151952.415232-2-benjamin@sipsolutions.net> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231220151952.415232-1-benjamin@sipsolutions.net> References: <20231220151952.415232-1-benjamin@sipsolutions.net> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Benjamin Berg The existing KUNIT_ARRAY_PARAM macro requires a separate function to get the description. However, in a lot of cases the description can just be copied directly from the array. Add a second macro that avoids having to write a static function just for a single strscpy. Signed-off-by: Benjamin Berg Reviewed-by: David Gow Reviewed-by: David Gow --- Documentation/dev-tools/kunit/usage.rst | 12 ++++-------- include/kunit/test.h | 19 +++++++++++++++++++ 2 files changed, 23 insertions(+), 8 deletions(-) diff --git a/Documentation/dev-tools/kunit/usage.rst b/Documentation/dev-tools/kunit/usage.rst index c27e1646ecd9..b959e5befcbe 100644 --- a/Documentation/dev-tools/kunit/usage.rst +++ b/Documentation/dev-tools/kunit/usage.rst @@ -566,13 +566,9 @@ By reusing the same ``cases`` array from above, we can write the test as a }, }; - // Need a helper function to generate a name for each test case. - static void case_to_desc(const struct sha1_test_case *t, char *desc) - { - strcpy(desc, t->str); - } - // Creates `sha1_gen_params()` to iterate over `cases`. - KUNIT_ARRAY_PARAM(sha1, cases, case_to_desc); + // Creates `sha1_gen_params()` to iterate over `cases` while using + // the struct member `str` for the case description. + KUNIT_ARRAY_PARAM_DESC(sha1, cases, str); // Looks no different from a normal test. static void sha1_test(struct kunit *test) @@ -588,7 +584,7 @@ By reusing the same ``cases`` array from above, we can write the test as a } // Instead of KUNIT_CASE, we use KUNIT_CASE_PARAM and pass in the - // function declared by KUNIT_ARRAY_PARAM. + // function declared by KUNIT_ARRAY_PARAM or KUNIT_ARRAY_PARAM_DESC. static struct kunit_case sha1_test_cases[] = { KUNIT_CASE_PARAM(sha1_test, sha1_gen_params), {} diff --git a/include/kunit/test.h b/include/kunit/test.h index 20ed9f9275c9..2dfa851e1f88 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -1514,6 +1514,25 @@ do { \ return NULL; \ } +/** + * KUNIT_ARRAY_PARAM_DESC() - Define test parameter generator from an array. + * @name: prefix for the test parameter generator function. + * @array: array of test parameters. + * @desc_member: structure member from array element to use as description + * + * Define function @name_gen_params which uses @array to generate parameters. + */ +#define KUNIT_ARRAY_PARAM_DESC(name, array, desc_member) \ + static const void *name##_gen_params(const void *prev, char *desc) \ + { \ + typeof((array)[0]) *__next = prev ? ((typeof(__next)) prev) + 1 : (array); \ + if (__next - (array) < ARRAY_SIZE((array))) { \ + strscpy(desc, __next->desc_member, KUNIT_PARAM_DESC_SIZE); \ + return __next; \ + } \ + return NULL; \ + } + // TODO(dlatypov@google.com): consider eventually migrating users to explicitly // include resource.h themselves if they need it. #include