From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A13D8C83007 for ; Wed, 29 Apr 2020 06:55:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 87BB9206D6 for ; Wed, 29 Apr 2020 06:55:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726654AbgD2Gzq (ORCPT ); Wed, 29 Apr 2020 02:55:46 -0400 Received: from mail-lj1-f195.google.com ([209.85.208.195]:38467 "EHLO mail-lj1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726355AbgD2Gzq (ORCPT ); Wed, 29 Apr 2020 02:55:46 -0400 Received: by mail-lj1-f195.google.com with SMTP id e25so1425886ljg.5; Tue, 28 Apr 2020 23:55:43 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=76AwQED9Us2wlfnledgM2REzlhCh0kvNjSLqoUFIJcA=; b=DvlhjrzITTzPpKivdvDdqVVChyi7+5XQPe7ikOypGBZTnRcQVs1iydziV43BWig6V9 h4pvwanzuMGx9EjslUBDUZFBIhhCjLz702NNqYGj91G6DJPxp9LHP1MLP+BBpfPUNQfx LCfNcCua5IpfkPhSkm/bzxFHakyOtxH2eLR9yEb0gNBwb4Ensiz3tyH6bEnFCbT/N08Z jCBhK5VTLP/9AdqOo66pOWfLdTrBUIWUQATkqXooeX37AovNInDC4/t5EP0J9oaIpsZ6 RCJWwrgvTk2MVmZLZDwJmcBuGU3bcRTrJpPdiOyb51CiQlxwI9olDe2alc0Jb3YH6kmz p7ow== X-Gm-Message-State: AGi0Pub3JstB41AyujOIR6PvcG4d/lNxteyt1vSXTG8laf6gP0n3QBhK RBKoSiCFYnFpukwrXI9qk77fK5mZ X-Google-Smtp-Source: APiQypI/R/D/X3h8YHIzZrUvsJyjD4Pucsy7uOdWZhK7sO5P8SbkxHVpTr5M+qScTSn/RANf36kpuw== X-Received: by 2002:a2e:b0f5:: with SMTP id h21mr20089006ljl.3.1588143342836; Tue, 28 Apr 2020 23:55:42 -0700 (PDT) Received: from localhost.localdomain (62-78-225-252.bb.dnainternet.fi. [62.78.225.252]) by smtp.gmail.com with ESMTPSA id c2sm1537579ljk.97.2020.04.28.23.55.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Apr 2020 23:55:42 -0700 (PDT) Date: Wed, 29 Apr 2020 09:54:56 +0300 From: Matti Vaittinen To: matti.vaittinen@fi.rohmeurope.com, mazziesaccount@gmail.com Cc: sre@kernel.org, robh+dt@kernel.org, broonie@kernel.org, lgirdwood@gmail.com, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RESEND PATCH v10 02/11] lib/test_linear_ranges: add a test for the 'linear_ranges' Message-ID: <8290db0984a1c64f478d8b00f7e9ae2bffde8fb7.1586925868.git.matti.vaittinen@fi.rohmeurope.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a KUnit test for the linear_ranges helper. Signed-off-by: Matti Vaittinen Reviewed-by: Brendan Higgins --- No changes since v9 lib/Kconfig.debug | 11 ++ lib/Makefile | 1 + lib/test_linear_ranges.c | 228 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 240 insertions(+) create mode 100644 lib/test_linear_ranges.c diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 50c1f5f08e6f..a4bfa80dc8a3 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2090,6 +2090,17 @@ config LIST_KUNIT_TEST If unsure, say N. +config LINEAR_RANGES_TEST + tristate "KUnit test for linear_ranges" + depends on KUNIT + help + This builds the linear_ranges unit test, which runs on boot. + Tests the linear_ranges logic correctness. + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config TEST_UDELAY tristate "udelay test driver" help diff --git a/lib/Makefile b/lib/Makefile index 20b9cfdcad69..cd548bfa8df9 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -310,3 +310,4 @@ obj-$(CONFIG_OBJAGG) += objagg.o # KUnit tests obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o +obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o diff --git a/lib/test_linear_ranges.c b/lib/test_linear_ranges.c new file mode 100644 index 000000000000..676e0b8abcdd --- /dev/null +++ b/lib/test_linear_ranges.c @@ -0,0 +1,228 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * KUnit test for the linear_ranges helper. + * + * Copyright (C) 2020, ROHM Semiconductors. + * Author: Matti Vaittinen + */ +#include + +#include + +/* First things first. I deeply dislike unit-tests. I have seen all the hell + * breaking loose when people who think the unit tests are "the silver bullet" + * to kill bugs get to decide how a company should implement testing strategy... + * + * Believe me, it may get _really_ ridiculous. It is tempting to think that + * walking through all the possible execution branches will nail down 100% of + * bugs. This may lead to ideas about demands to get certain % of "test + * coverage" - measured as line coverage. And that is one of the worst things + * you can do. + * + * Ask people to provide line coverage and they do. I've seen clever tools + * which generate test cases to test the existing functions - and by default + * these tools expect code to be correct and just generate checks which are + * passing when ran against current code-base. Run this generator and you'll get + * tests that do not test code is correct but just verify nothing changes. + * Problem is that testing working code is pointless. And if it is not + * working, your test must not assume it is working. You won't catch any bugs + * by such tests. What you can do is to generate a huge amount of tests. + * Especially if you were are asked to proivde 100% line-coverage x_x. So what + * does these tests - which are not finding any bugs now - do? + * + * They add inertia to every future development. I think it was Terry Pratchet + * who wrote someone having same impact as thick syrup has to chronometre. + * Excessive amount of unit-tests have this effect to development. If you do + * actually find _any_ bug from code in such environment and try fixing it... + * ...chances are you also need to fix the test cases. In sunny day you fix one + * test. But I've done refactoring which resulted 500+ broken tests (which had + * really zero value other than proving to managers that we do do "quality")... + * + * After this being said - there are situations where UTs can be handy. If you + * have algorithms which take some input and should produce output - then you + * can implement few, carefully selected simple UT-cases which test this. I've + * previously used this for example for netlink and device-tree data parsing + * functions. Feed some data examples to functions and verify the output is as + * expected. I am not covering all the cases but I will see the logic should be + * working. + * + * Here we also do some minor testing. I don't want to go through all branches + * or test more or less obvious things - but I want to see the main logic is + * working. And I definitely don't want to add 500+ test cases that break when + * some simple fix is done x_x. So - let's only add few, well selected tests + * which ensure as much logic is good as possible. + */ + +/* + * Test Range 1: + * selectors: 2 3 4 5 6 + * values (5): 10 20 30 40 50 + * + * Test Range 2: + * selectors: 7 8 9 10 + * values (4): 100 150 200 250 + */ + +#define RANGE1_MIN 10 +#define RANGE1_MIN_SEL 2 +#define RANGE1_STEP 10 + +/* 2, 3, 4, 5, 6 */ +static const unsigned int range1_sels[] = { RANGE1_MIN_SEL, RANGE1_MIN_SEL + 1, + RANGE1_MIN_SEL + 2, + RANGE1_MIN_SEL + 3, + RANGE1_MIN_SEL + 4 }; +/* 10, 20, 30, 40, 50 */ +static const unsigned int range1_vals[] = { RANGE1_MIN, RANGE1_MIN + + RANGE1_STEP, + RANGE1_MIN + RANGE1_STEP * 2, + RANGE1_MIN + RANGE1_STEP * 3, + RANGE1_MIN + RANGE1_STEP * 4 }; + +#define RANGE2_MIN 100 +#define RANGE2_MIN_SEL 7 +#define RANGE2_STEP 50 + +/* 7, 8, 9, 10 */ +static const unsigned int range2_sels[] = { RANGE2_MIN_SEL, RANGE2_MIN_SEL + 1, + RANGE2_MIN_SEL + 2, + RANGE2_MIN_SEL + 3 }; +/* 100, 150, 200, 250 */ +static const unsigned int range2_vals[] = { RANGE2_MIN, RANGE2_MIN + + RANGE2_STEP, + RANGE2_MIN + RANGE2_STEP * 2, + RANGE2_MIN + RANGE2_STEP * 3 }; + +#define RANGE1_NUM_VALS (ARRAY_SIZE(range1_vals)) +#define RANGE2_NUM_VALS (ARRAY_SIZE(range2_vals)) +#define RANGE_NUM_VALS (RANGE1_NUM_VALS + RANGE2_NUM_VALS) + +#define RANGE1_MAX_SEL (RANGE1_MIN_SEL + RANGE1_NUM_VALS - 1) +#define RANGE1_MAX_VAL (range1_vals[RANGE1_NUM_VALS - 1]) + +#define RANGE2_MAX_SEL (RANGE2_MIN_SEL + RANGE2_NUM_VALS - 1) +#define RANGE2_MAX_VAL (range2_vals[RANGE2_NUM_VALS - 1]) + +#define SMALLEST_SEL RANGE1_MIN_SEL +#define SMALLEST_VAL RANGE1_MIN + +static struct linear_range testr[] = { + { + .min = RANGE1_MIN, + .min_sel = RANGE1_MIN_SEL, + .max_sel = RANGE1_MAX_SEL, + .step = RANGE1_STEP, + }, { + .min = RANGE2_MIN, + .min_sel = RANGE2_MIN_SEL, + .max_sel = RANGE2_MAX_SEL, + .step = RANGE2_STEP + }, +}; + +static void range_test_get_value(struct kunit *test) +{ + int ret, i; + unsigned int sel, val; + + for (i = 0; i < RANGE1_NUM_VALS; i++) { + sel = range1_sels[i]; + ret = linear_range_get_value_array(&testr[0], 2, sel, &val); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, val, range1_vals[i]); + } + for (i = 0; i < RANGE2_NUM_VALS; i++) { + sel = range2_sels[i]; + ret = linear_range_get_value_array(&testr[0], 2, sel, &val); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, val, range2_vals[i]); + } + ret = linear_range_get_value_array(&testr[0], 2, sel + 1, &val); + KUNIT_EXPECT_NE(test, 0, ret); +} + +static void range_test_get_selector_high(struct kunit *test) +{ + int ret, i; + unsigned int sel; + bool found; + + for (i = 0; i < RANGE1_NUM_VALS; i++) { + ret = linear_range_get_selector_high(&testr[0], range1_vals[i], + &sel, &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range1_sels[i]); + KUNIT_EXPECT_TRUE(test, found); + } + + ret = linear_range_get_selector_high(&testr[0], RANGE1_MAX_VAL + 1, + &sel, &found); + KUNIT_EXPECT_LE(test, ret, 0); + + ret = linear_range_get_selector_high(&testr[0], RANGE1_MIN - 1, + &sel, &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_FALSE(test, found); + KUNIT_EXPECT_EQ(test, sel, range1_sels[0]); +} + +static void range_test_get_value_amount(struct kunit *test) +{ + int ret; + + ret = linear_range_values_in_range_array(&testr[0], 2); + KUNIT_EXPECT_EQ(test, (int)RANGE_NUM_VALS, ret); +} + +static void range_test_get_selector_low(struct kunit *test) +{ + int i, ret; + unsigned int sel; + bool found; + + for (i = 0; i < RANGE1_NUM_VALS; i++) { + ret = linear_range_get_selector_low_array(&testr[0], 2, + range1_vals[i], &sel, + &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range1_sels[i]); + KUNIT_EXPECT_TRUE(test, found); + } + for (i = 0; i < RANGE2_NUM_VALS; i++) { + ret = linear_range_get_selector_low_array(&testr[0], 2, + range2_vals[i], &sel, + &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range2_sels[i]); + KUNIT_EXPECT_TRUE(test, found); + } + + /* + * Seek value greater than range max => get_selector_*_low should + * return Ok - but set found to false as value is not in range + */ + ret = linear_range_get_selector_low_array(&testr[0], 2, + range2_vals[RANGE2_NUM_VALS - 1] + 1, + &sel, &found); + + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range2_sels[RANGE2_NUM_VALS - 1]); + KUNIT_EXPECT_FALSE(test, found); +} + +static struct kunit_case range_test_cases[] = { + KUNIT_CASE(range_test_get_value_amount), + KUNIT_CASE(range_test_get_selector_high), + KUNIT_CASE(range_test_get_selector_low), + KUNIT_CASE(range_test_get_value), + {}, +}; + +static struct kunit_suite range_test_module = { + .name = "linear-ranges-test", + .test_cases = range_test_cases, +}; + +kunit_test_suites(&range_test_module); + +MODULE_LICENSE("GPL"); -- 2.21.0 -- Matti Vaittinen, Linux device drivers ROHM Semiconductors, Finland SWDC Kiviharjunlenkki 1E 90220 OULU FINLAND ~~~ "I don't think so," said Rene Descartes. 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[2001:14ba:16e1:b700::3]) by smtp.gmail.com with ESMTPSA id b1sm12048899lfb.22.2020.04.14.22.17.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 14 Apr 2020 22:17:50 -0700 (PDT) Date: Wed, 15 Apr 2020 08:17:42 +0300 From: Matti Vaittinen To: matti.vaittinen@fi.rohmeurope.com, mazziesaccount@gmail.com Subject: [PATCH v10 02/11] lib/test_linear_ranges: add a test for the 'linear_ranges' Message-ID: <8290db0984a1c64f478d8b00f7e9ae2bffde8fb7.1586925868.git.matti.vaittinen@fi.rohmeurope.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.1 (2019-06-15) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200414_221753_088291_2AFD3BD3 X-CRM114-Status: GOOD ( 25.67 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Andrei Stefanescu , Heiko Stuebner , "Rafael J. Wysocki" , Tony Lindgren , Linus Walleij , Brendan Higgins , Sebastian Reichel , Andreas Kemnade , "Angelo G. Del Regno" , Hsin-Hsiung Wang , linux-samsung-soc@vger.kernel.org, Andy Shevchenko , Axel Lin , Gregory CLEMENT , linux-pm@vger.kernel.org, Krzysztof Kozlowski , Markus Reichl , Bartosz Golaszewski , Chen-Yu Tsai , Andy Gross , markus.laine@fi.rohmeurope.com, Adam Thomson , devicetree@vger.kernel.org, Charles Keepax , linux-omap@vger.kernel.org, Bartlomiej Zolnierkiewicz , linux-arm-msm@vger.kernel.org, Richard Fitzgerald , Mark Brown , linux-mediatek@lists.infradead.org, Matthias Brugger , Thomas Gleixner , Bjorn Andersson , linux-arm-kernel@lists.infradead.org, Support Opensource , Baolin Wang , Sangbeom Kim , Greg Kroah-Hartman , Randy Dunlap , Matti Vaittinen , Liam Girdwood , linux-kernel@vger.kernel.org, mikko.mutanen@fi.rohmeurope.com, Vinod Koul , Rob Herring , patches@opensource.cirrus.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add a KUnit test for the linear_ranges helper. Signed-off-by: Matti Vaittinen Reviewed-by: Brendan Higgins --- No changes since v9 lib/Kconfig.debug | 11 ++ lib/Makefile | 1 + lib/test_linear_ranges.c | 228 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 240 insertions(+) create mode 100644 lib/test_linear_ranges.c diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 50c1f5f08e6f..a4bfa80dc8a3 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2090,6 +2090,17 @@ config LIST_KUNIT_TEST If unsure, say N. +config LINEAR_RANGES_TEST + tristate "KUnit test for linear_ranges" + depends on KUNIT + help + This builds the linear_ranges unit test, which runs on boot. + Tests the linear_ranges logic correctness. + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config TEST_UDELAY tristate "udelay test driver" help diff --git a/lib/Makefile b/lib/Makefile index 20b9cfdcad69..cd548bfa8df9 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -310,3 +310,4 @@ obj-$(CONFIG_OBJAGG) += objagg.o # KUnit tests obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o +obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o diff --git a/lib/test_linear_ranges.c b/lib/test_linear_ranges.c new file mode 100644 index 000000000000..676e0b8abcdd --- /dev/null +++ b/lib/test_linear_ranges.c @@ -0,0 +1,228 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * KUnit test for the linear_ranges helper. + * + * Copyright (C) 2020, ROHM Semiconductors. + * Author: Matti Vaittinen + */ +#include + +#include + +/* First things first. I deeply dislike unit-tests. I have seen all the hell + * breaking loose when people who think the unit tests are "the silver bullet" + * to kill bugs get to decide how a company should implement testing strategy... + * + * Believe me, it may get _really_ ridiculous. It is tempting to think that + * walking through all the possible execution branches will nail down 100% of + * bugs. This may lead to ideas about demands to get certain % of "test + * coverage" - measured as line coverage. And that is one of the worst things + * you can do. + * + * Ask people to provide line coverage and they do. I've seen clever tools + * which generate test cases to test the existing functions - and by default + * these tools expect code to be correct and just generate checks which are + * passing when ran against current code-base. Run this generator and you'll get + * tests that do not test code is correct but just verify nothing changes. + * Problem is that testing working code is pointless. And if it is not + * working, your test must not assume it is working. You won't catch any bugs + * by such tests. What you can do is to generate a huge amount of tests. + * Especially if you were are asked to proivde 100% line-coverage x_x. So what + * does these tests - which are not finding any bugs now - do? + * + * They add inertia to every future development. I think it was Terry Pratchet + * who wrote someone having same impact as thick syrup has to chronometre. + * Excessive amount of unit-tests have this effect to development. If you do + * actually find _any_ bug from code in such environment and try fixing it... + * ...chances are you also need to fix the test cases. In sunny day you fix one + * test. But I've done refactoring which resulted 500+ broken tests (which had + * really zero value other than proving to managers that we do do "quality")... + * + * After this being said - there are situations where UTs can be handy. If you + * have algorithms which take some input and should produce output - then you + * can implement few, carefully selected simple UT-cases which test this. I've + * previously used this for example for netlink and device-tree data parsing + * functions. Feed some data examples to functions and verify the output is as + * expected. I am not covering all the cases but I will see the logic should be + * working. + * + * Here we also do some minor testing. I don't want to go through all branches + * or test more or less obvious things - but I want to see the main logic is + * working. And I definitely don't want to add 500+ test cases that break when + * some simple fix is done x_x. So - let's only add few, well selected tests + * which ensure as much logic is good as possible. + */ + +/* + * Test Range 1: + * selectors: 2 3 4 5 6 + * values (5): 10 20 30 40 50 + * + * Test Range 2: + * selectors: 7 8 9 10 + * values (4): 100 150 200 250 + */ + +#define RANGE1_MIN 10 +#define RANGE1_MIN_SEL 2 +#define RANGE1_STEP 10 + +/* 2, 3, 4, 5, 6 */ +static const unsigned int range1_sels[] = { RANGE1_MIN_SEL, RANGE1_MIN_SEL + 1, + RANGE1_MIN_SEL + 2, + RANGE1_MIN_SEL + 3, + RANGE1_MIN_SEL + 4 }; +/* 10, 20, 30, 40, 50 */ +static const unsigned int range1_vals[] = { RANGE1_MIN, RANGE1_MIN + + RANGE1_STEP, + RANGE1_MIN + RANGE1_STEP * 2, + RANGE1_MIN + RANGE1_STEP * 3, + RANGE1_MIN + RANGE1_STEP * 4 }; + +#define RANGE2_MIN 100 +#define RANGE2_MIN_SEL 7 +#define RANGE2_STEP 50 + +/* 7, 8, 9, 10 */ +static const unsigned int range2_sels[] = { RANGE2_MIN_SEL, RANGE2_MIN_SEL + 1, + RANGE2_MIN_SEL + 2, + RANGE2_MIN_SEL + 3 }; +/* 100, 150, 200, 250 */ +static const unsigned int range2_vals[] = { RANGE2_MIN, RANGE2_MIN + + RANGE2_STEP, + RANGE2_MIN + RANGE2_STEP * 2, + RANGE2_MIN + RANGE2_STEP * 3 }; + +#define RANGE1_NUM_VALS (ARRAY_SIZE(range1_vals)) +#define RANGE2_NUM_VALS (ARRAY_SIZE(range2_vals)) +#define RANGE_NUM_VALS (RANGE1_NUM_VALS + RANGE2_NUM_VALS) + +#define RANGE1_MAX_SEL (RANGE1_MIN_SEL + RANGE1_NUM_VALS - 1) +#define RANGE1_MAX_VAL (range1_vals[RANGE1_NUM_VALS - 1]) + +#define RANGE2_MAX_SEL (RANGE2_MIN_SEL + RANGE2_NUM_VALS - 1) +#define RANGE2_MAX_VAL (range2_vals[RANGE2_NUM_VALS - 1]) + +#define SMALLEST_SEL RANGE1_MIN_SEL +#define SMALLEST_VAL RANGE1_MIN + +static struct linear_range testr[] = { + { + .min = RANGE1_MIN, + .min_sel = RANGE1_MIN_SEL, + .max_sel = RANGE1_MAX_SEL, + .step = RANGE1_STEP, + }, { + .min = RANGE2_MIN, + .min_sel = RANGE2_MIN_SEL, + .max_sel = RANGE2_MAX_SEL, + .step = RANGE2_STEP + }, +}; + +static void range_test_get_value(struct kunit *test) +{ + int ret, i; + unsigned int sel, val; + + for (i = 0; i < RANGE1_NUM_VALS; i++) { + sel = range1_sels[i]; + ret = linear_range_get_value_array(&testr[0], 2, sel, &val); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, val, range1_vals[i]); + } + for (i = 0; i < RANGE2_NUM_VALS; i++) { + sel = range2_sels[i]; + ret = linear_range_get_value_array(&testr[0], 2, sel, &val); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, val, range2_vals[i]); + } + ret = linear_range_get_value_array(&testr[0], 2, sel + 1, &val); + KUNIT_EXPECT_NE(test, 0, ret); +} + +static void range_test_get_selector_high(struct kunit *test) +{ + int ret, i; + unsigned int sel; + bool found; + + for (i = 0; i < RANGE1_NUM_VALS; i++) { + ret = linear_range_get_selector_high(&testr[0], range1_vals[i], + &sel, &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range1_sels[i]); + KUNIT_EXPECT_TRUE(test, found); + } + + ret = linear_range_get_selector_high(&testr[0], RANGE1_MAX_VAL + 1, + &sel, &found); + KUNIT_EXPECT_LE(test, ret, 0); + + ret = linear_range_get_selector_high(&testr[0], RANGE1_MIN - 1, + &sel, &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_FALSE(test, found); + KUNIT_EXPECT_EQ(test, sel, range1_sels[0]); +} + +static void range_test_get_value_amount(struct kunit *test) +{ + int ret; + + ret = linear_range_values_in_range_array(&testr[0], 2); + KUNIT_EXPECT_EQ(test, (int)RANGE_NUM_VALS, ret); +} + +static void range_test_get_selector_low(struct kunit *test) +{ + int i, ret; + unsigned int sel; + bool found; + + for (i = 0; i < RANGE1_NUM_VALS; i++) { + ret = linear_range_get_selector_low_array(&testr[0], 2, + range1_vals[i], &sel, + &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range1_sels[i]); + KUNIT_EXPECT_TRUE(test, found); + } + for (i = 0; i < RANGE2_NUM_VALS; i++) { + ret = linear_range_get_selector_low_array(&testr[0], 2, + range2_vals[i], &sel, + &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range2_sels[i]); + KUNIT_EXPECT_TRUE(test, found); + } + + /* + * Seek value greater than range max => get_selector_*_low should + * return Ok - but set found to false as value is not in range + */ + ret = linear_range_get_selector_low_array(&testr[0], 2, + range2_vals[RANGE2_NUM_VALS - 1] + 1, + &sel, &found); + + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range2_sels[RANGE2_NUM_VALS - 1]); + KUNIT_EXPECT_FALSE(test, found); +} + +static struct kunit_case range_test_cases[] = { + KUNIT_CASE(range_test_get_value_amount), + KUNIT_CASE(range_test_get_selector_high), + KUNIT_CASE(range_test_get_selector_low), + KUNIT_CASE(range_test_get_value), + {}, +}; + +static struct kunit_suite range_test_module = { + .name = "linear-ranges-test", + .test_cases = range_test_cases, +}; + +kunit_test_suites(&range_test_module); + +MODULE_LICENSE("GPL"); -- 2.21.0 -- Matti Vaittinen, Linux device drivers ROHM Semiconductors, Finland SWDC Kiviharjunlenkki 1E 90220 OULU FINLAND ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~ Simon says - in Latin please. ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~ Thanks to Simon Glass for the translation =] _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8E80FC2BA2B for ; Wed, 15 Apr 2020 05:18:01 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 494A12076A for ; Wed, 15 Apr 2020 05:18:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="YId7kTNt" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 494A12076A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=fi.rohmeurope.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=fA4xIe4KY99YNME5js28UdWmDHQdeGsYgOn3bvqRgJE=; b=YId7kTNtZpvlnd 2K5VMZ5NgRgT2D5J2V+Wm5gzK2mfzvaz2vaD0zAtnUXiASIEauPKl1wQZx9x2B42rGxLPskbyTAzf f0jT6QQXJNcHSemA4Q5N5Mj780kNvjrfvlfJ1XHMDeOVKGbF27mvod9U7gdh2oR9Ugx7079gU/h8m DMe+Ryf/3/zScBitI/27x/3eup2tNCQMr6x1ozCzgOlNfSVDzTK1XiSxwAGH7AaJuRX4X0S6OlRA7 qZ7bAmsR0ON0ht3Uo2KsFCqJsnRANWU8zLVTwNSKgteuFCJWm7q9L8r25qaJkqV32uZfRIgXHc9TF E5vCDqW3EKLIWaJKGlpA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jOaQv-0007pQ-3m; Wed, 15 Apr 2020 05:17:57 +0000 Received: from mail-lf1-f68.google.com ([209.85.167.68]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jOaQr-0007oG-1K; Wed, 15 Apr 2020 05:17:55 +0000 Received: by mail-lf1-f68.google.com with SMTP id t11so1620835lfe.4; Tue, 14 Apr 2020 22:17:52 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=76AwQED9Us2wlfnledgM2REzlhCh0kvNjSLqoUFIJcA=; b=Rls5jWwiAN9/hBxs563rqZYUf/YAV1GUC6AAHvnU57V5j4uT2OFa2oD8E0BWuvOHW0 uZmP+s/7teAy1mqZCz5yIM1M81gLhwc1NxZrkKYXTnnAaCE747GxYBvIQHL10LIm48mi wUqG8MKdEyVniZ3GAh0WcUGjfz2jdt1uuKYjzgK7hbz67M/QSd8EJ6QZ39PyA9UmXr4y 59PE2eBVamoJ/PIlSektpiEKfGMVfe+D9aWfTlGUNuH8JNjM7/+V3GgBqICMvcXTl6cd nzK54XVLwU5nJq2JkS5R01tV4DtaGiwRmJxlb1yqg3Ej0aPcskgEgWixVE6FbS5Ob5Vt U8Ww== X-Gm-Message-State: AGi0Puak/EGnsQ+QiWP7kQqTlXPG9sNqczBSdklguja59wTeqzDS4nSs c/ma9IZl06va4EMoRUXGRO8= X-Google-Smtp-Source: APiQypL5rzP0ZU80YIcFqj7zFssn3OWzUI8SnlClsOXZWrr0315FTqTX8vB3St10rfmesLNDaN+Tpw== X-Received: by 2002:ac2:5684:: with SMTP id 4mr1896676lfr.88.1586927871069; Tue, 14 Apr 2020 22:17:51 -0700 (PDT) Received: from localhost.localdomain (dc7t7ryyyyyyyyyyyyybt-3.rev.dnainternet.fi. [2001:14ba:16e1:b700::3]) by smtp.gmail.com with ESMTPSA id b1sm12048899lfb.22.2020.04.14.22.17.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 14 Apr 2020 22:17:50 -0700 (PDT) Date: Wed, 15 Apr 2020 08:17:42 +0300 From: Matti Vaittinen To: matti.vaittinen@fi.rohmeurope.com, mazziesaccount@gmail.com Subject: [PATCH v10 02/11] lib/test_linear_ranges: add a test for the 'linear_ranges' Message-ID: <8290db0984a1c64f478d8b00f7e9ae2bffde8fb7.1586925868.git.matti.vaittinen@fi.rohmeurope.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.1 (2019-06-15) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200414_221753_088291_2AFD3BD3 X-CRM114-Status: GOOD ( 25.67 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Andrei Stefanescu , Heiko Stuebner , "Rafael J. Wysocki" , Tony Lindgren , Linus Walleij , Brendan Higgins , Sebastian Reichel , Andreas Kemnade , "Angelo G. Del Regno" , Hsin-Hsiung Wang , linux-samsung-soc@vger.kernel.org, Andy Shevchenko , Axel Lin , Gregory CLEMENT , linux-pm@vger.kernel.org, Krzysztof Kozlowski , Markus Reichl , Bartosz Golaszewski , Chen-Yu Tsai , Andy Gross , markus.laine@fi.rohmeurope.com, Adam Thomson , devicetree@vger.kernel.org, Charles Keepax , linux-omap@vger.kernel.org, Bartlomiej Zolnierkiewicz , linux-arm-msm@vger.kernel.org, Richard Fitzgerald , Mark Brown , linux-mediatek@lists.infradead.org, Matthias Brugger , Thomas Gleixner , Bjorn Andersson , linux-arm-kernel@lists.infradead.org, Support Opensource , Baolin Wang , Sangbeom Kim , Greg Kroah-Hartman , Randy Dunlap , Matti Vaittinen , Liam Girdwood , linux-kernel@vger.kernel.org, mikko.mutanen@fi.rohmeurope.com, Vinod Koul , Rob Herring , patches@opensource.cirrus.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add a KUnit test for the linear_ranges helper. Signed-off-by: Matti Vaittinen Reviewed-by: Brendan Higgins --- No changes since v9 lib/Kconfig.debug | 11 ++ lib/Makefile | 1 + lib/test_linear_ranges.c | 228 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 240 insertions(+) create mode 100644 lib/test_linear_ranges.c diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 50c1f5f08e6f..a4bfa80dc8a3 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2090,6 +2090,17 @@ config LIST_KUNIT_TEST If unsure, say N. +config LINEAR_RANGES_TEST + tristate "KUnit test for linear_ranges" + depends on KUNIT + help + This builds the linear_ranges unit test, which runs on boot. + Tests the linear_ranges logic correctness. + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config TEST_UDELAY tristate "udelay test driver" help diff --git a/lib/Makefile b/lib/Makefile index 20b9cfdcad69..cd548bfa8df9 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -310,3 +310,4 @@ obj-$(CONFIG_OBJAGG) += objagg.o # KUnit tests obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o +obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o diff --git a/lib/test_linear_ranges.c b/lib/test_linear_ranges.c new file mode 100644 index 000000000000..676e0b8abcdd --- /dev/null +++ b/lib/test_linear_ranges.c @@ -0,0 +1,228 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * KUnit test for the linear_ranges helper. + * + * Copyright (C) 2020, ROHM Semiconductors. + * Author: Matti Vaittinen + */ +#include + +#include + +/* First things first. I deeply dislike unit-tests. I have seen all the hell + * breaking loose when people who think the unit tests are "the silver bullet" + * to kill bugs get to decide how a company should implement testing strategy... + * + * Believe me, it may get _really_ ridiculous. It is tempting to think that + * walking through all the possible execution branches will nail down 100% of + * bugs. This may lead to ideas about demands to get certain % of "test + * coverage" - measured as line coverage. And that is one of the worst things + * you can do. + * + * Ask people to provide line coverage and they do. I've seen clever tools + * which generate test cases to test the existing functions - and by default + * these tools expect code to be correct and just generate checks which are + * passing when ran against current code-base. Run this generator and you'll get + * tests that do not test code is correct but just verify nothing changes. + * Problem is that testing working code is pointless. And if it is not + * working, your test must not assume it is working. You won't catch any bugs + * by such tests. What you can do is to generate a huge amount of tests. + * Especially if you were are asked to proivde 100% line-coverage x_x. So what + * does these tests - which are not finding any bugs now - do? + * + * They add inertia to every future development. I think it was Terry Pratchet + * who wrote someone having same impact as thick syrup has to chronometre. + * Excessive amount of unit-tests have this effect to development. If you do + * actually find _any_ bug from code in such environment and try fixing it... + * ...chances are you also need to fix the test cases. In sunny day you fix one + * test. But I've done refactoring which resulted 500+ broken tests (which had + * really zero value other than proving to managers that we do do "quality")... + * + * After this being said - there are situations where UTs can be handy. If you + * have algorithms which take some input and should produce output - then you + * can implement few, carefully selected simple UT-cases which test this. I've + * previously used this for example for netlink and device-tree data parsing + * functions. Feed some data examples to functions and verify the output is as + * expected. I am not covering all the cases but I will see the logic should be + * working. + * + * Here we also do some minor testing. I don't want to go through all branches + * or test more or less obvious things - but I want to see the main logic is + * working. And I definitely don't want to add 500+ test cases that break when + * some simple fix is done x_x. So - let's only add few, well selected tests + * which ensure as much logic is good as possible. + */ + +/* + * Test Range 1: + * selectors: 2 3 4 5 6 + * values (5): 10 20 30 40 50 + * + * Test Range 2: + * selectors: 7 8 9 10 + * values (4): 100 150 200 250 + */ + +#define RANGE1_MIN 10 +#define RANGE1_MIN_SEL 2 +#define RANGE1_STEP 10 + +/* 2, 3, 4, 5, 6 */ +static const unsigned int range1_sels[] = { RANGE1_MIN_SEL, RANGE1_MIN_SEL + 1, + RANGE1_MIN_SEL + 2, + RANGE1_MIN_SEL + 3, + RANGE1_MIN_SEL + 4 }; +/* 10, 20, 30, 40, 50 */ +static const unsigned int range1_vals[] = { RANGE1_MIN, RANGE1_MIN + + RANGE1_STEP, + RANGE1_MIN + RANGE1_STEP * 2, + RANGE1_MIN + RANGE1_STEP * 3, + RANGE1_MIN + RANGE1_STEP * 4 }; + +#define RANGE2_MIN 100 +#define RANGE2_MIN_SEL 7 +#define RANGE2_STEP 50 + +/* 7, 8, 9, 10 */ +static const unsigned int range2_sels[] = { RANGE2_MIN_SEL, RANGE2_MIN_SEL + 1, + RANGE2_MIN_SEL + 2, + RANGE2_MIN_SEL + 3 }; +/* 100, 150, 200, 250 */ +static const unsigned int range2_vals[] = { RANGE2_MIN, RANGE2_MIN + + RANGE2_STEP, + RANGE2_MIN + RANGE2_STEP * 2, + RANGE2_MIN + RANGE2_STEP * 3 }; + +#define RANGE1_NUM_VALS (ARRAY_SIZE(range1_vals)) +#define RANGE2_NUM_VALS (ARRAY_SIZE(range2_vals)) +#define RANGE_NUM_VALS (RANGE1_NUM_VALS + RANGE2_NUM_VALS) + +#define RANGE1_MAX_SEL (RANGE1_MIN_SEL + RANGE1_NUM_VALS - 1) +#define RANGE1_MAX_VAL (range1_vals[RANGE1_NUM_VALS - 1]) + +#define RANGE2_MAX_SEL (RANGE2_MIN_SEL + RANGE2_NUM_VALS - 1) +#define RANGE2_MAX_VAL (range2_vals[RANGE2_NUM_VALS - 1]) + +#define SMALLEST_SEL RANGE1_MIN_SEL +#define SMALLEST_VAL RANGE1_MIN + +static struct linear_range testr[] = { + { + .min = RANGE1_MIN, + .min_sel = RANGE1_MIN_SEL, + .max_sel = RANGE1_MAX_SEL, + .step = RANGE1_STEP, + }, { + .min = RANGE2_MIN, + .min_sel = RANGE2_MIN_SEL, + .max_sel = RANGE2_MAX_SEL, + .step = RANGE2_STEP + }, +}; + +static void range_test_get_value(struct kunit *test) +{ + int ret, i; + unsigned int sel, val; + + for (i = 0; i < RANGE1_NUM_VALS; i++) { + sel = range1_sels[i]; + ret = linear_range_get_value_array(&testr[0], 2, sel, &val); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, val, range1_vals[i]); + } + for (i = 0; i < RANGE2_NUM_VALS; i++) { + sel = range2_sels[i]; + ret = linear_range_get_value_array(&testr[0], 2, sel, &val); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, val, range2_vals[i]); + } + ret = linear_range_get_value_array(&testr[0], 2, sel + 1, &val); + KUNIT_EXPECT_NE(test, 0, ret); +} + +static void range_test_get_selector_high(struct kunit *test) +{ + int ret, i; + unsigned int sel; + bool found; + + for (i = 0; i < RANGE1_NUM_VALS; i++) { + ret = linear_range_get_selector_high(&testr[0], range1_vals[i], + &sel, &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range1_sels[i]); + KUNIT_EXPECT_TRUE(test, found); + } + + ret = linear_range_get_selector_high(&testr[0], RANGE1_MAX_VAL + 1, + &sel, &found); + KUNIT_EXPECT_LE(test, ret, 0); + + ret = linear_range_get_selector_high(&testr[0], RANGE1_MIN - 1, + &sel, &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_FALSE(test, found); + KUNIT_EXPECT_EQ(test, sel, range1_sels[0]); +} + +static void range_test_get_value_amount(struct kunit *test) +{ + int ret; + + ret = linear_range_values_in_range_array(&testr[0], 2); + KUNIT_EXPECT_EQ(test, (int)RANGE_NUM_VALS, ret); +} + +static void range_test_get_selector_low(struct kunit *test) +{ + int i, ret; + unsigned int sel; + bool found; + + for (i = 0; i < RANGE1_NUM_VALS; i++) { + ret = linear_range_get_selector_low_array(&testr[0], 2, + range1_vals[i], &sel, + &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range1_sels[i]); + KUNIT_EXPECT_TRUE(test, found); + } + for (i = 0; i < RANGE2_NUM_VALS; i++) { + ret = linear_range_get_selector_low_array(&testr[0], 2, + range2_vals[i], &sel, + &found); + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range2_sels[i]); + KUNIT_EXPECT_TRUE(test, found); + } + + /* + * Seek value greater than range max => get_selector_*_low should + * return Ok - but set found to false as value is not in range + */ + ret = linear_range_get_selector_low_array(&testr[0], 2, + range2_vals[RANGE2_NUM_VALS - 1] + 1, + &sel, &found); + + KUNIT_EXPECT_EQ(test, 0, ret); + KUNIT_EXPECT_EQ(test, sel, range2_sels[RANGE2_NUM_VALS - 1]); + KUNIT_EXPECT_FALSE(test, found); +} + +static struct kunit_case range_test_cases[] = { + KUNIT_CASE(range_test_get_value_amount), + KUNIT_CASE(range_test_get_selector_high), + KUNIT_CASE(range_test_get_selector_low), + KUNIT_CASE(range_test_get_value), + {}, +}; + +static struct kunit_suite range_test_module = { + .name = "linear-ranges-test", + .test_cases = range_test_cases, +}; + +kunit_test_suites(&range_test_module); + +MODULE_LICENSE("GPL"); -- 2.21.0 -- Matti Vaittinen, Linux device drivers ROHM Semiconductors, Finland SWDC Kiviharjunlenkki 1E 90220 OULU FINLAND ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~ Simon says - in Latin please. ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~ Thanks to Simon Glass for the translation =] _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel