From patchwork Wed Jul 19 22:23:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rae Moar X-Patchwork-Id: 13319584 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7605CC001B0 for ; Wed, 19 Jul 2023 22:24:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230359AbjGSWYA (ORCPT ); Wed, 19 Jul 2023 18:24:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55254 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230205AbjGSWX4 (ORCPT ); Wed, 19 Jul 2023 18:23:56 -0400 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 09D6D1FFA for ; Wed, 19 Jul 2023 15:23:54 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id 3f1490d57ef6-cbcffb18afeso114171276.2 for ; Wed, 19 Jul 2023 15:23:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1689805434; x=1692397434; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=9sRq/L9BAwqWXNrlVe37oHbZZhdY2nOQD+Izcb3qkl8=; b=6aR9dhJ8U0+qxU7ESK1dduHa+doKJIIhbz6sedBnCkirKzlDVSXseuV04sR7qXGdv0 WQd4m9B1Pm65VneT1AmZzxUhnignOqXipQMqzkFZvnlVmzpmVRfCvcN9XMltrO6SyeFW LYHSbhvrX09byBjvzE1F5mvqQ/ACuhSHU1IPjtsw6XZTXExoarNiR/qKArVIRzIvc93+ CwYwmLEqjEKhtHugkNZZd1AHu6u/0OMdOOuYwazHWeYbfmcLNBe2P4hr00m00C9ROtKx 4BhrHHpwqn1ZU6V4XB5/L/5eu9vTFGjkZwv0dK6SmjsCUeCiuqLNGwiaEYZRvhwjcZ1R Ma8w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689805434; x=1692397434; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=9sRq/L9BAwqWXNrlVe37oHbZZhdY2nOQD+Izcb3qkl8=; b=OkmmLjUtPqf/9KQzdVm/1Dyd6PVNveGI9VlPaqFYfWgMlB96Xl8JHJbZWRWnmvP0Yc 5npNRjLqYv+RxKBgF6d9WDGU0slyCq7DDdALqpbMhxW9erQQl9EKgvdq3AWxfghTvhra 3Rv/3IPoolOt+IbIkxJH1NgyDNXkB9SOgUywW3E3pjcw+bJaiFlcpUAhONnWVzNk219i +EptvkxMUwsYemYfs5uOsor+xNdW9zYcevWWuSovuEPHDMlMreOSlph0LKhwN9rBJqQa sG+LzX1RaSSxwNi+1+yiyr877RiedoCTfNn9ugUjPLUymHwk4lkVro0r93WHKVoZiMmf VfaA== X-Gm-Message-State: ABy/qLbMhzPamdhDNdGfdG8rLMePWJnVCKjqghV05IALBjOaKnWNXoyz vS3F6DVLaf2TykywD0XWpC+4KiStaA== X-Google-Smtp-Source: APBJJlEE09FI4unmyB8EvpDDYafH7/d1DRcm2gmzizuC+we3bVianzZ/HMPSV2lbKhfRA5S3UCagemsE8Q== X-Received: from rmoar-specialist.c.googlers.com ([fda3:e722:ac3:cc00:2b:7d90:c0a8:45d3]) (user=rmoar job=sendgmr) by 2002:a05:6902:1709:b0:cab:e42c:876b with SMTP id by9-20020a056902170900b00cabe42c876bmr34335ybb.3.1689805434000; Wed, 19 Jul 2023 15:23:54 -0700 (PDT) Date: Wed, 19 Jul 2023 22:23:29 +0000 In-Reply-To: <20230719222338.259684-1-rmoar@google.com> Mime-Version: 1.0 References: <20230719222338.259684-1-rmoar@google.com> X-Mailer: git-send-email 2.41.0.255.g8b1d071c50-goog Message-ID: <20230719222338.259684-3-rmoar@google.com> Subject: [PATCH v1 2/9] kunit: Add speed attribute From: Rae Moar To: shuah@kernel.org, davidgow@google.com, dlatypov@google.com, brendan.higgins@linux.dev Cc: linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com, linux-kernel@vger.kernel.org, keescook@chromium.org, linux-hardening@vger.kernel.org, jstultz@google.com, tglx@linutronix.de, sboyd@kernel.org, Rae Moar Precedence: bulk List-ID: X-Mailing-List: linux-hardening@vger.kernel.org Add speed attribute to the test attribute API. This attribute will allow users to mark tests with a category of speed. Currently the categories of speed proposed are: normal, slow, and very_slow (outlined in enum kunit_speed). These are outlined in the enum kunit_speed. The assumed default speed for tests is "normal". This indicates that the test takes a relatively trivial amount of time (less than 1 second), regardless of the machine it is running on. Any test slower than this could be marked as "slow" or "very_slow". Add the macro KUNIT_CASE_SLOW to set a test as slow, as this is likely a common use of the attributes API. Add an example of marking a slow test to kunit-example-test.c. Reviewed-by: David Gow Signed-off-by: Rae Moar --- Changes since RFC v2: - Fixup comment. Changes since RFC v1: - Remove the "fast" category of speed. include/kunit/test.h | 32 ++++++++++++++++++++++- lib/kunit/attributes.c | 46 +++++++++++++++++++++++++++++++++- lib/kunit/kunit-example-test.c | 9 +++++++ 3 files changed, 85 insertions(+), 2 deletions(-) diff --git a/include/kunit/test.h b/include/kunit/test.h index 1fc9155988e9..ed5f5000a095 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -63,8 +63,27 @@ enum kunit_status { KUNIT_SKIPPED, }; +/* Attribute struct/enum definitions */ + +/* + * Speed Attribute is stored as an enum and separated into categories of + * speed: very_slowm, slow, and normal. These speeds are relative to + * other KUnit tests. + * + * Note: unset speed attribute acts as default of KUNIT_SPEED_NORMAL. + */ +enum kunit_speed { + KUNIT_SPEED_UNSET, + KUNIT_SPEED_VERY_SLOW, + KUNIT_SPEED_SLOW, + KUNIT_SPEED_NORMAL, + KUNIT_SPEED_MAX = KUNIT_SPEED_NORMAL, +}; + /* Holds attributes for each test case and suite */ -struct kunit_attributes {}; +struct kunit_attributes { + enum kunit_speed speed; +}; /** * struct kunit_case - represents an individual test case. @@ -150,6 +169,17 @@ static inline char *kunit_status_to_ok_not_ok(enum kunit_status status) { .run_case = test_name, .name = #test_name, \ .attr = attributes } +/** + * KUNIT_CASE_SLOW - A helper for creating a &struct kunit_case + * with the slow attribute + * + * @test_name: a reference to a test case function. + */ + +#define KUNIT_CASE_SLOW(test_name) \ + { .run_case = test_name, .name = #test_name, \ + .attr.speed = KUNIT_SPEED_SLOW } + /** * KUNIT_CASE_PARAM - A helper for creation a parameterized &struct kunit_case * diff --git a/lib/kunit/attributes.c b/lib/kunit/attributes.c index 9bda5a5f4030..e97096dbb3b1 100644 --- a/lib/kunit/attributes.c +++ b/lib/kunit/attributes.c @@ -40,9 +40,53 @@ struct kunit_attr { enum print_ops print; }; +/* String Lists for enum Attributes */ + +static const char * const speed_str_list[] = {"unset", "very_slow", "slow", "normal"}; + +/* To String Methods */ + +static const char *attr_enum_to_string(void *attr, const char * const str_list[], bool *to_free) +{ + long val = (long)attr; + + *to_free = false; + if (!val) + return NULL; + return str_list[val]; +} + +static const char *attr_speed_to_string(void *attr, bool *to_free) +{ + return attr_enum_to_string(attr, speed_str_list, to_free); +} + +/* Get Attribute Methods */ + +static void *attr_speed_get(void *test_or_suite, bool is_test) +{ + struct kunit_suite *suite = is_test ? NULL : test_or_suite; + struct kunit_case *test = is_test ? test_or_suite : NULL; + + if (test) + return ((void *) test->attr.speed); + else + return ((void *) suite->attr.speed); +} + +/* Attribute Struct Definitions */ + +static const struct kunit_attr speed_attr = { + .name = "speed", + .get_attr = attr_speed_get, + .to_string = attr_speed_to_string, + .attr_default = (void *)KUNIT_SPEED_NORMAL, + .print = PRINT_ALWAYS, +}; + /* List of all Test Attributes */ -static struct kunit_attr kunit_attr_list[] = {}; +static struct kunit_attr kunit_attr_list[] = {speed_attr}; /* Helper Functions to Access Attributes */ diff --git a/lib/kunit/kunit-example-test.c b/lib/kunit/kunit-example-test.c index b69b689ea850..01a769f35e1d 100644 --- a/lib/kunit/kunit-example-test.c +++ b/lib/kunit/kunit-example-test.c @@ -220,6 +220,14 @@ static void example_params_test(struct kunit *test) KUNIT_EXPECT_EQ(test, param->value % param->value, 0); } +/* + * This test should always pass. Can be used to practice filtering attributes. + */ +static void example_slow_test(struct kunit *test) +{ + KUNIT_EXPECT_EQ(test, 1 + 1, 2); +} + /* * Here we make a list of all the test cases we want to add to the test suite * below. @@ -237,6 +245,7 @@ static struct kunit_case example_test_cases[] = { KUNIT_CASE(example_all_expect_macros_test), KUNIT_CASE(example_static_stub_test), KUNIT_CASE_PARAM(example_params_test, example_gen_params), + KUNIT_CASE_SLOW(example_slow_test), {} };