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=-17.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=unavailable 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 9DB74C3A5A6 for ; Sat, 24 Aug 2019 01:35:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 67B8821848 for ; Sat, 24 Aug 2019 01:35:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="HD6KX9lX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727602AbfHXBfO (ORCPT ); Fri, 23 Aug 2019 21:35:14 -0400 Received: from mail-pg1-f202.google.com ([209.85.215.202]:44786 "EHLO mail-pg1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727581AbfHXBfK (ORCPT ); Fri, 23 Aug 2019 21:35:10 -0400 Received: by mail-pg1-f202.google.com with SMTP id i134so5990951pgd.11 for ; Fri, 23 Aug 2019 18:35:09 -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=xgs2ZRRv/gWulHMvAMwpPFfeVbxStAts8w5EgfNFku8=; b=HD6KX9lX2O9mVSEATuHwStXxooe59H5LVAtcSlWs4JirI9mFNIKmENJWeI2E4FVVd0 +Jg2zin/4xeqRg4gtiDNfN7Drqig8Vh97RPsSKEp3NZ6CTY+/Uo898nSHmiBgeJzTua5 RmCYlVbzKnHawNUt5auYcZBntMnEC3yZ+V4auO4FRHpVun2Ct2vnBFasbGdWb8rFbN1n 42Tku8NwOMEHbdxIB+zuRh2UtsuyrMU+B3Fz9ye+0seSPLtsAlKDnIXeEbkFeDjN+f8v /sWuFKrRyiNC2KCs/uMbVwtDiYiri3TRgDuaBYmURQesExWbrbgX25tYJ4IyU0hAC//j OEhg== 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=xgs2ZRRv/gWulHMvAMwpPFfeVbxStAts8w5EgfNFku8=; b=iftSCC1FG2AnaUAWiJ8BgTP/VlcUpTa60xpSgcEF/NwICi8N6Aacg8qfcvaj4Ua84+ ZnJ3COwAowCDwDnXzd1TzuZXTsDqp4epT1Vm2lFDB/odCeGQM99nMjzp1lLfdzrmSGGm oQuCwiZ71fMp7AfkQYnUrlyBGkyqRRZrI7oPbi3ghGT21G1yBVRXBcs3ECLhWpYtXwO/ Wwkw02qOviSWh0VvIePDhVS9DzWui/o9G6z+kUjiZ0XAJB60m1F+eWnxTiUvHdeyH+OE Ho5qT0qyU17W5L4iqINz+UE9BQC+zkDpUy+cWq1GSJ7wWWFKlSN9tiBbWKmoFQgKrUof JKmg== X-Gm-Message-State: APjAAAVtBXQaGr/GrdPrV45nbNcPN2cUlQLxK3G3lgCBSZuPUxm5bTNo 2PrZUW2gAP06nHeoUJMoCv4bYTzMFSNTGt1ZPppVaA== X-Google-Smtp-Source: APXvYqwKHU5UXjAXrzen8gkyacIAVYZBvNYQsUvaYMpe+t++hrvK18VbogqPIINASnBHyQwHf+d18IUEeZtO/bdrnoQC2g== X-Received: by 2002:a63:8a43:: with SMTP id y64mr6447446pgd.104.1566610508927; Fri, 23 Aug 2019 18:35:08 -0700 (PDT) Date: Fri, 23 Aug 2019 18:34:19 -0700 In-Reply-To: <20190824013425.175645-1-brendanhiggins@google.com> Message-Id: <20190824013425.175645-13-brendanhiggins@google.com> Mime-Version: 1.0 References: <20190824013425.175645-1-brendanhiggins@google.com> X-Mailer: git-send-email 2.23.0.187.g17f5b7556c-goog Subject: [PATCH v15 12/18] 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 Cc: devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, kunit-dev@googlegroups.com, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-nvdimm@lists.01.org, linux-um@lists.infradead.org, Alexander.Levin@microsoft.com, Tim.Bird@sony.com, amir73il@gmail.com, dan.carpenter@oracle.com, daniel@ffwll.ch, jdike@addtoit.com, joel@jms.id.au, julia.lawall@lip6.fr, khilman@baylibre.com, knut.omang@oracle.com, logang@deltatee.com, mpe@ellerman.id.au, pmladek@suse.com, rdunlap@infradead.org, richard@nod.at, rientjes@google.com, rostedt@goodmis.org, wfg@linux.intel.com, Avinash Kondareddy , Brendan Higgins Content-Type: text/plain; charset="UTF-8" Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org 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 --- kunit/test-test.c | 228 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 228 insertions(+) diff --git a/kunit/test-test.c b/kunit/test-test.c index e0ab4bd546ea..5ebe059d16e2 100644 --- a/kunit/test-test.c +++ b/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); -- 2.23.0.187.g17f5b7556c-goog