From patchwork Fri Sep 20 23:19:16 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Brendan Higgins X-Patchwork-Id: 11155147 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7F9A21747 for ; Fri, 20 Sep 2019 23:49:58 +0000 (UTC) Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (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 5D3C22073F for ; Fri, 20 Sep 2019 23:49:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=google.com header.i=@google.com header.b="C8CTpH7h" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5D3C22073F Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvdimm-bounces@lists.01.org Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 25DC8202ECFCA; Fri, 20 Sep 2019 16:48:53 -0700 (PDT) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=2607:f8b0:4864:20::c49; helo=mail-yw1-xc49.google.com; envelope-from=3rf6fxq4kdheqgtcspcwxvvxchvddvat.rdbaxcjm-cksxbbaxhih.pq.dgv@flex--brendanhiggins.bounces.google.com; receiver=linux-nvdimm@lists.01.org Received: from mail-yw1-xc49.google.com (mail-yw1-xc49.google.com [IPv6:2607:f8b0:4864:20::c49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 7C076202ECFBC for ; Fri, 20 Sep 2019 16:48:51 -0700 (PDT) Received: by mail-yw1-xc49.google.com with SMTP id 132so6795526ywo.13 for ; Fri, 20 Sep 2019 16:49:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=aABf1eQBMP6/WvpZsyoq3EyRjH0cX7yhFaKM6+EkpH4=; b=C8CTpH7hjt5YzOI8L3ZXZdx+UjDYARIDHHjQ/7OtEDOsGIfUTly+gb2r4DffPT2x7P 4vRLIiK1XK9TvUnkfkNU1Iv9kUN8urfJiAOsHRGh0rwJ8k9Ny1vyB/ixjD51NAsOwCbO FRInTaqsz/Bd8gz2nilcPiISmipuNqdZi9TZdJaanGF6Re0R4bHhbmbZDoOTAg98B5vF D2QLWdOrGKPy9B47ek5ANwRKVa8jMt08wD6F/S/feLXmidmt6srqGWOW5ZgWIW0/Rm+Q OQaWqX+oD7QR9eH/jyHsv+MYWnflZtQKzkZaXkmsA21SGpVoFzW6o3ApmTnQrTzRApNP OQkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=aABf1eQBMP6/WvpZsyoq3EyRjH0cX7yhFaKM6+EkpH4=; b=uXZuvOycOmUyapAlUSd1a5kpT/Yg5QrhEBSOYPQb4RqpIblvrTGls4zMrB0oYhdBha GJ4cp+/tmbrydsJtRu4GH+ZJT+/dEVa8fwtxfKyu/0XoOcn/rPGlqMNtq6yiK6t3oIz9 lgdR8QMk6dJMfVVE/2qTABVk/vENSaL5yR74T6O5AMEtIz0JFsylD8hImC93lh2Nu20Q qT9cN8YEv36CX+FRMEsJQA1J458+4bKVQbUr05C/jgN68e0qBf9E3M5ocBsIqM1p79/u /IkWTetmVWQKeqrdvnDeoDzGODvzrisV9maAYqno6GY/eQ8G0xlPDGTX4nyPxAlIJlIe 1zyw== X-Gm-Message-State: APjAAAWwkvZmb6wV23d4l2rsP313Apv9Hr/Oc3fdPLx3j56mtOYErslQ pLCtMSU+POQPh5PPEK/ywtvUVEJwnY8SzFDk8WmiFA== X-Google-Smtp-Source: APXvYqweqI84X6kIFXp//UjYY7BAsyfmpZhSb5WrEB7msV1QvcEohsykXXMYy3EnpAxoYkj0k9lpHjzJ8iclAUJ1C+DKlg== X-Received: by 2002:a81:a24f:: with SMTP id z15mr14509682ywg.55.1569021612142; Fri, 20 Sep 2019 16:20:12 -0700 (PDT) Date: Fri, 20 Sep 2019 16:19:16 -0700 In-Reply-To: <20190920231923.141900-1-brendanhiggins@google.com> Message-Id: <20190920231923.141900-13-brendanhiggins@google.com> Mime-Version: 1.0 References: <20190920231923.141900-1-brendanhiggins@google.com> X-Mailer: git-send-email 2.23.0.351.gc4317032e6-goog Subject: [PATCH v16 12/19] kunit: test: add tests for KUnit managed resources From: Brendan Higgins To: frowand.list@gmail.com, gregkh@linuxfoundation.org, jpoimboe@redhat.com, keescook@google.com, kieran.bingham@ideasonboard.com, mcgrof@kernel.org, peterz@infradead.org, robh@kernel.org, sboyd@kernel.org, shuah@kernel.org, tytso@mit.edu, yamada.masahiro@socionext.com X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pmladek@suse.com, linux-doc@vger.kernel.org, amir73il@gmail.com, Brendan Higgins , dri-devel@lists.freedesktop.org, Alexander.Levin@microsoft.com, linux-kselftest@vger.kernel.org, linux-nvdimm@lists.01.org, khilman@baylibre.com, knut.omang@oracle.com, wfg@linux.intel.com, joel@jms.id.au, rientjes@google.com, jdike@addtoit.com, dan.carpenter@oracle.com, devicetree@vger.kernel.org, linux-kbuild@vger.kernel.org, Tim.Bird@sony.com, Avinash Kondareddy , linux-um@lists.infradead.org, rostedt@goodmis.org, julia.lawall@lip6.fr, kunit-dev@googlegroups.com, richard@nod.at, torvalds@linux-foundation.org, rdunlap@infradead.org, linux-kernel@vger.kernel.org, daniel@ffwll.ch, mpe@ellerman.id.au, linux-fsdevel@vger.kernel.org Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" From: Avinash Kondareddy Add unit tests for KUnit managed resources. KUnit managed resources (struct kunit_resource) are resources that are automatically cleaned up at the end of a KUnit test, similar to the concept of devm_* managed resources. Signed-off-by: Avinash Kondareddy Signed-off-by: Brendan Higgins Reviewed-by: Greg Kroah-Hartman Reviewed-by: Logan Gunthorpe Reviewed-by: Stephen Boyd --- lib/kunit/test-test.c | 228 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 228 insertions(+) diff --git a/lib/kunit/test-test.c b/lib/kunit/test-test.c index e0ab4bd546ea..5ebe059d16e2 100644 --- a/lib/kunit/test-test.c +++ b/lib/kunit/test-test.c @@ -101,3 +101,231 @@ static struct kunit_suite kunit_try_catch_test_suite = { .test_cases = kunit_try_catch_test_cases, }; kunit_test_suite(kunit_try_catch_test_suite); + +/* + * Context for testing test managed resources + * is_resource_initialized is used to test arbitrary resources + */ +struct kunit_test_resource_context { + struct kunit test; + bool is_resource_initialized; + int allocate_order[2]; + int free_order[2]; +}; + +static int fake_resource_init(struct kunit_resource *res, void *context) +{ + struct kunit_test_resource_context *ctx = context; + + res->allocation = &ctx->is_resource_initialized; + ctx->is_resource_initialized = true; + return 0; +} + +static void fake_resource_free(struct kunit_resource *res) +{ + bool *is_resource_initialized = res->allocation; + + *is_resource_initialized = false; +} + +static void kunit_resource_test_init_resources(struct kunit *test) +{ + struct kunit_test_resource_context *ctx = test->priv; + + kunit_init_test(&ctx->test, "testing_test_init_test"); + + KUNIT_EXPECT_TRUE(test, list_empty(&ctx->test.resources)); +} + +static void kunit_resource_test_alloc_resource(struct kunit *test) +{ + struct kunit_test_resource_context *ctx = test->priv; + struct kunit_resource *res; + kunit_resource_free_t free = fake_resource_free; + + res = kunit_alloc_and_get_resource(&ctx->test, + fake_resource_init, + fake_resource_free, + GFP_KERNEL, + ctx); + + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, res); + KUNIT_EXPECT_PTR_EQ(test, + &ctx->is_resource_initialized, + (bool *) res->allocation); + KUNIT_EXPECT_TRUE(test, list_is_last(&res->node, &ctx->test.resources)); + KUNIT_EXPECT_PTR_EQ(test, free, res->free); +} + +static void kunit_resource_test_destroy_resource(struct kunit *test) +{ + struct kunit_test_resource_context *ctx = test->priv; + struct kunit_resource *res = kunit_alloc_and_get_resource( + &ctx->test, + fake_resource_init, + fake_resource_free, + GFP_KERNEL, + ctx); + + KUNIT_ASSERT_FALSE(test, + kunit_resource_destroy(&ctx->test, + kunit_resource_instance_match, + res->free, + res->allocation)); + + KUNIT_EXPECT_FALSE(test, ctx->is_resource_initialized); + KUNIT_EXPECT_TRUE(test, list_empty(&ctx->test.resources)); +} + +static void kunit_resource_test_cleanup_resources(struct kunit *test) +{ + int i; + struct kunit_test_resource_context *ctx = test->priv; + struct kunit_resource *resources[5]; + + for (i = 0; i < ARRAY_SIZE(resources); i++) { + resources[i] = kunit_alloc_and_get_resource(&ctx->test, + fake_resource_init, + fake_resource_free, + GFP_KERNEL, + ctx); + } + + kunit_cleanup(&ctx->test); + + KUNIT_EXPECT_TRUE(test, list_empty(&ctx->test.resources)); +} + +static void kunit_resource_test_mark_order(int order_array[], + size_t order_size, + int key) +{ + int i; + + for (i = 0; i < order_size && order_array[i]; i++) + ; + + order_array[i] = key; +} + +#define KUNIT_RESOURCE_TEST_MARK_ORDER(ctx, order_field, key) \ + kunit_resource_test_mark_order(ctx->order_field, \ + ARRAY_SIZE(ctx->order_field), \ + key) + +static int fake_resource_2_init(struct kunit_resource *res, void *context) +{ + struct kunit_test_resource_context *ctx = context; + + KUNIT_RESOURCE_TEST_MARK_ORDER(ctx, allocate_order, 2); + + res->allocation = ctx; + + return 0; +} + +static void fake_resource_2_free(struct kunit_resource *res) +{ + struct kunit_test_resource_context *ctx = res->allocation; + + KUNIT_RESOURCE_TEST_MARK_ORDER(ctx, free_order, 2); +} + +static int fake_resource_1_init(struct kunit_resource *res, void *context) +{ + struct kunit_test_resource_context *ctx = context; + + kunit_alloc_and_get_resource(&ctx->test, + fake_resource_2_init, + fake_resource_2_free, + GFP_KERNEL, + ctx); + + KUNIT_RESOURCE_TEST_MARK_ORDER(ctx, allocate_order, 1); + + res->allocation = ctx; + + return 0; +} + +static void fake_resource_1_free(struct kunit_resource *res) +{ + struct kunit_test_resource_context *ctx = res->allocation; + + KUNIT_RESOURCE_TEST_MARK_ORDER(ctx, free_order, 1); +} + +/* + * TODO(brendanhiggins@google.com): replace the arrays that keep track of the + * order of allocation and freeing with strict mocks using the IN_SEQUENCE macro + * to assert allocation and freeing order when the feature becomes available. + */ +static void kunit_resource_test_proper_free_ordering(struct kunit *test) +{ + struct kunit_test_resource_context *ctx = test->priv; + + /* fake_resource_1 allocates a fake_resource_2 in its init. */ + kunit_alloc_and_get_resource(&ctx->test, + fake_resource_1_init, + fake_resource_1_free, + GFP_KERNEL, + ctx); + + /* + * Since fake_resource_2_init calls KUNIT_RESOURCE_TEST_MARK_ORDER + * before returning to fake_resource_1_init, it should be the first to + * put its key in the allocate_order array. + */ + KUNIT_EXPECT_EQ(test, ctx->allocate_order[0], 2); + KUNIT_EXPECT_EQ(test, ctx->allocate_order[1], 1); + + kunit_cleanup(&ctx->test); + + /* + * Because fake_resource_2 finishes allocation before fake_resource_1, + * fake_resource_1 should be freed first since it could depend on + * fake_resource_2. + */ + KUNIT_EXPECT_EQ(test, ctx->free_order[0], 1); + KUNIT_EXPECT_EQ(test, ctx->free_order[1], 2); +} + +static int kunit_resource_test_init(struct kunit *test) +{ + struct kunit_test_resource_context *ctx = + kzalloc(sizeof(*ctx), GFP_KERNEL); + + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); + + test->priv = ctx; + + kunit_init_test(&ctx->test, "test_test_context"); + + return 0; +} + +static void kunit_resource_test_exit(struct kunit *test) +{ + struct kunit_test_resource_context *ctx = test->priv; + + kunit_cleanup(&ctx->test); + kfree(ctx); +} + +static struct kunit_case kunit_resource_test_cases[] = { + KUNIT_CASE(kunit_resource_test_init_resources), + KUNIT_CASE(kunit_resource_test_alloc_resource), + KUNIT_CASE(kunit_resource_test_destroy_resource), + KUNIT_CASE(kunit_resource_test_cleanup_resources), + KUNIT_CASE(kunit_resource_test_proper_free_ordering), + {} +}; + +static struct kunit_suite kunit_resource_test_suite = { + .name = "kunit-resource-test", + .init = kunit_resource_test_init, + .exit = kunit_resource_test_exit, + .test_cases = kunit_resource_test_cases, +}; +kunit_test_suite(kunit_resource_test_suite);