From patchwork Wed Jul 17 01:55:30 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Brendan Higgins X-Patchwork-Id: 11046943 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2E86B13BD for ; Wed, 17 Jul 2019 01:56:14 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1E15028702 for ; Wed, 17 Jul 2019 01:56:14 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1164928707; Wed, 17 Jul 2019 01:56:14 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.5 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, USER_IN_DEF_DKIM_WL autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6E12B2870E for ; Wed, 17 Jul 2019 01:56:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727192AbfGQB4J (ORCPT ); Tue, 16 Jul 2019 21:56:09 -0400 Received: from mail-yb1-f202.google.com ([209.85.219.202]:33476 "EHLO mail-yb1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727182AbfGQB4I (ORCPT ); Tue, 16 Jul 2019 21:56:08 -0400 Received: by mail-yb1-f202.google.com with SMTP id v17so252621ybq.0 for ; Tue, 16 Jul 2019 18:56:07 -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=rXjnRaBVRpZdecCHg0/QEfyUk4ZcJw3rWna10bMhLQM=; b=L5X6WDBNMvs/rKMUL/R4U+rPmHl1vybmceKksEPLuoT3pcTKSFQKfDBbVeWRU5+LzB ul4e2wxsiJEH5PZNjRpTv0Tkr3GBtgMxXz8OyyyP8nAhWYWEMaa21R0KwvCbvhYrE+fu Dh+pybFPRe0aLdQVBom7M2zIPUWFI84nvB+fK8zH/Lon1dMCDWofA6GVk3w0sYOtsteQ Ibm2aE4sdSg6Mrurpb+d4zqLpJAuUuFawoBXdgzCc4LXb/E3r1Z+pRUEG9WmlxctOIOS rRBSllSEuEC4EHFwUIX97Y7QgG0++N6Xs8+MnoNlZt06l2eWLhnu0Aop0jIR4q5llE9A qTsA== 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=rXjnRaBVRpZdecCHg0/QEfyUk4ZcJw3rWna10bMhLQM=; b=gyFDHAUXxnFz0VXxSy4LQmqIBGZsj5/kE1An9/9h+USY93g+l6ahqum410vs3CMo4H 5FTgE338TNUukH7MNjz4rIDBdLjstJhO+kQt7Yq8OcaBPidEGVEutBY3KvFRqtStP2Ak FWwBfMBDkLg2yZAvygeq3fAZEXjDuGKtM2GV3OqkACDUD1V87anjTkM1fflT81ZEiwdr Tra7SkNZJVG7/XkyNCBgE2JncSQqC3nt1kWWv7kf8Lx5oS9FRKu9rC20LhGmWlCkV+Wk 9QMss1CWvRH40lPf4DtCy2Ol8GB3urK7D3HIfOhdsPE6RNWVmaE6gXcczMEHXvJGE/63 nd6Q== X-Gm-Message-State: APjAAAV3khpmLKjBACOfrUEnA6WPjJI3uJt5By4S/69O24Oviy6Vc69M whfncSzO2TNNFBxHxTQhMgHzweQyWsauxLyC/xqTBQ== X-Google-Smtp-Source: APXvYqwOkIGO1sUD2pIOycYffhfJaQ0ehdxMOF+CR/WLJkWy2ixKMmVthtXWyCbbgK8/mA75c/BQDEhn61C+GB5e7UgOIg== X-Received: by 2002:a81:a453:: with SMTP id b80mr21499441ywh.485.1563328566777; Tue, 16 Jul 2019 18:56:06 -0700 (PDT) Date: Tue, 16 Jul 2019 18:55:30 -0700 In-Reply-To: <20190717015543.152251-1-brendanhiggins@google.com> Message-Id: <20190717015543.152251-6-brendanhiggins@google.com> Mime-Version: 1.0 References: <20190717015543.152251-1-brendanhiggins@google.com> X-Mailer: git-send-email 2.22.0.510.g264f2c817a-goog Subject: [PATCH v11 05/18] kunit: test: add the concept of expectations 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, Brendan Higgins Sender: linux-kbuild-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add support for expectations, which allow properties to be specified and then verified in tests. Signed-off-by: Brendan Higgins Reviewed-by: Greg Kroah-Hartman Reviewed-by: Logan Gunthorpe --- include/kunit/test.h | 526 +++++++++++++++++++++++++++++++++++++++++++ kunit/test.c | 66 ++++++ 2 files changed, 592 insertions(+) diff --git a/include/kunit/test.h b/include/kunit/test.h index 4b6e7d91afd34..6ae585478730a 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -9,6 +9,7 @@ #ifndef _KUNIT_TEST_H #define _KUNIT_TEST_H +#include #include #include #include @@ -322,4 +323,529 @@ void __printf(3, 4) kunit_printk(const char *level, #define kunit_err(test, fmt, ...) \ kunit_printk(KERN_ERR, test, fmt, ##__VA_ARGS__) +/* + * Generates a compile-time warning in case of comparing incompatible types. + */ +#define __kunit_typecheck(lhs, rhs) \ + ((void) __typecheck(lhs, rhs)) + +static inline struct kunit_stream *kunit_expect_start(struct kunit *test, + const char *file, + const char *line) +{ + struct kunit_stream *stream = alloc_kunit_stream(test, KERN_ERR, + GFP_KERNEL); + + kunit_stream_add(stream, "EXPECTATION FAILED at %s:%s\n\t", file, line); + + return stream; +} + +static inline void kunit_expect_end(struct kunit *test, + bool success, + struct kunit_stream *stream) +{ + if (!success) + kunit_fail(test, stream); + else + kunit_stream_clear(stream); +} + +#define KUNIT_EXPECT_START(test) \ + kunit_expect_start(test, __FILE__, __stringify(__LINE__)) + +#define KUNIT_EXPECT_END(test, success, stream) \ + kunit_expect_end(test, success, stream) + +#define KUNIT_EXPECT_MSG(test, success, message, fmt, ...) do { \ + struct kunit_stream *__stream = KUNIT_EXPECT_START(test); \ + \ + kunit_stream_add(__stream, message); \ + kunit_stream_add(__stream, fmt, ##__VA_ARGS__); \ + KUNIT_EXPECT_END(test, success, __stream); \ +} while (0) + +#define KUNIT_EXPECT(test, success, message) do { \ + struct kunit_stream *__stream = KUNIT_EXPECT_START(test); \ + \ + kunit_stream_add(__stream, message); \ + KUNIT_EXPECT_END(test, success, __stream); \ +} while (0) + +/** + * KUNIT_SUCCEED() - A no-op expectation. Only exists for code clarity. + * @test: The test context object. + * + * The opposite of KUNIT_FAIL(), it is an expectation that cannot fail. In other + * words, it does nothing and only exists for code clarity. See + * KUNIT_EXPECT_TRUE() for more information. + */ +#define KUNIT_SUCCEED(test) do {} while (0) + +/** + * KUNIT_FAIL() - Always causes a test to fail when evaluated. + * @test: The test context object. + * @fmt: an informational message to be printed when the assertion is made. + * @...: string format arguments. + * + * The opposite of KUNIT_SUCCEED(), it is an expectation that always fails. In + * other words, it always results in a failed expectation, and consequently + * always causes the test case to fail when evaluated. See KUNIT_EXPECT_TRUE() + * for more information. + */ +#define KUNIT_FAIL(test, fmt, ...) do { \ + struct kunit_stream *__stream = KUNIT_EXPECT_START(test); \ + \ + kunit_stream_add(__stream, fmt, ##__VA_ARGS__); \ + KUNIT_EXPECT_END(test, false, __stream); \ +} while (0) + +/** + * KUNIT_EXPECT_TRUE() - Causes a test failure when the expression is not true. + * @test: The test context object. + * @condition: an arbitrary boolean expression. The test fails when this does + * not evaluate to true. + * + * This and expectations of the form `KUNIT_EXPECT_*` will cause the test case + * to fail when the specified condition is not met; however, it will not prevent + * the test case from continuing to run; this is otherwise known as an + * *expectation failure*. + */ +#define KUNIT_EXPECT_TRUE(test, condition) \ + KUNIT_EXPECT(test, (condition), \ + "Expected " #condition " is true, but is false\n") + +#define KUNIT_EXPECT_TRUE_MSG(test, condition, fmt, ...) \ + KUNIT_EXPECT_MSG(test, (condition), \ + "Expected " #condition " is true, but is false\n",\ + fmt, ##__VA_ARGS__) + +/** + * KUNIT_EXPECT_FALSE() - Makes a test failure when the expression is not false. + * @test: The test context object. + * @condition: an arbitrary boolean expression. The test fails when this does + * not evaluate to false. + * + * Sets an expectation that @condition evaluates to false. See + * KUNIT_EXPECT_TRUE() for more information. + */ +#define KUNIT_EXPECT_FALSE(test, condition) \ + KUNIT_EXPECT(test, !(condition), \ + "Expected " #condition " is false, but is true\n") + +#define KUNIT_EXPECT_FALSE_MSG(test, condition, fmt, ...) \ + KUNIT_EXPECT_MSG(test, !(condition), \ + "Expected " #condition " is false, but is true\n",\ + fmt, ##__VA_ARGS__) + +void kunit_expect_binary_msg(struct kunit *test, + long long left, const char *left_name, + long long right, const char *right_name, + bool compare_result, + const char *compare_name, + const char *file, + const char *line, + const char *fmt, ...); + +static inline void kunit_expect_binary(struct kunit *test, + long long left, const char *left_name, + long long right, const char *right_name, + bool compare_result, + const char *compare_name, + const char *file, + const char *line) +{ + kunit_expect_binary_msg(test, + left, left_name, + right, right_name, + compare_result, + compare_name, + file, + line, + NULL); +} + +void kunit_expect_ptr_binary_msg(struct kunit *test, + void *left, const char *left_name, + void *right, const char *right_name, + bool compare_result, + const char *compare_name, + const char *file, + const char *line, + const char *fmt, ...); + +static inline void kunit_expect_ptr_binary(struct kunit *test, + void *left, const char *left_name, + void *right, const char *right_name, + bool compare_result, + const char *compare_name, + const char *file, + const char *line) +{ + kunit_expect_ptr_binary_msg(test, + left, left_name, + right, right_name, + compare_result, + compare_name, + file, + line, + NULL); +} + +/* + * A factory macro for defining the expectations for the basic comparisons + * defined for the built in types. + * + * Unfortunately, there is no common type that all types can be promoted to for + * which all the binary operators behave the same way as for the actual types + * (for example, there is no type that long long and unsigned long long can + * both be cast to where the comparison result is preserved for all values). So + * the best we can do is do the comparison in the original types and then coerce + * everything to long long for printing; this way, the comparison behaves + * correctly and the printed out value usually makes sense without + * interpretation, but can always be interpretted to figure out the actual + * value. + */ +#define KUNIT_EXPECT_BINARY(test, left, condition, right) do { \ + typeof(left) __left = (left); \ + typeof(right) __right = (right); \ + __kunit_typecheck(__left, __right); \ + kunit_expect_binary(test, \ + (long long) __left, #left, \ + (long long) __right, #right, \ + __left condition __right, #condition, \ + __FILE__, __stringify(__LINE__)); \ +} while (0) + +#define KUNIT_EXPECT_BINARY_MSG(test, left, condition, right, fmt, ...) do { \ + typeof(left) __left = (left); \ + typeof(right) __right = (right); \ + __kunit_typecheck(__left, __right); \ + kunit_expect_binary_msg(test, \ + (long long) __left, #left, \ + (long long) __right, #right, \ + __left condition __right, #condition, \ + __FILE__, __stringify(__LINE__), \ + fmt, ##__VA_ARGS__); \ +} while (0) + +/* + * Just like KUNIT_EXPECT_BINARY, but for comparing pointer types. + */ +#define KUNIT_EXPECT_PTR_BINARY(test, left, condition, right) do { \ + typeof(left) __left = (left); \ + typeof(right) __right = (right); \ + __kunit_typecheck(__left, __right); \ + kunit_expect_ptr_binary(test, \ + (void *) __left, #left, \ + (void *) __right, #right, \ + __left condition __right, #condition, \ + __FILE__, __stringify(__LINE__)); \ +} while (0) + +#define KUNIT_EXPECT_PTR_BINARY_MSG(test, left, condition, right, fmt, ...) \ +do { \ + typeof(left) __left = (left); \ + typeof(right) __right = (right); \ + __kunit_typecheck(__left, __right); \ + kunit_expect_ptr_binary_msg(test, \ + (void *) __left, #left, \ + (void *) __right, #right, \ + __left condition __right, #condition, \ + __FILE__, __stringify(__LINE__), \ + fmt, ##__VA_ARGS__); \ +} while (0) + +/** + * KUNIT_EXPECT_EQ() - Sets an expectation that @left and @right are equal. + * @test: The test context object. + * @left: an arbitrary expression that evaluates to a primitive C type. + * @right: an arbitrary expression that evaluates to a primitive C type. + * + * Sets an expectation that the values that @left and @right evaluate to are + * equal. This is semantically equivalent to + * KUNIT_EXPECT_TRUE(@test, (@left) == (@right)). See KUNIT_EXPECT_TRUE() for + * more information. + */ +#define KUNIT_EXPECT_EQ(test, left, right) \ + KUNIT_EXPECT_BINARY(test, left, ==, right) + +#define KUNIT_EXPECT_EQ_MSG(test, left, right, fmt, ...) \ + KUNIT_EXPECT_BINARY_MSG(test, \ + left, \ + ==, \ + right, \ + fmt, \ + ##__VA_ARGS__) + +/** + * KUNIT_EXPECT_PTR_EQ() - Expects that pointers @left and @right are equal. + * @test: The test context object. + * @left: an arbitrary expression that evaluates to a pointer. + * @right: an arbitrary expression that evaluates to a pointer. + * + * Sets an expectation that the values that @left and @right evaluate to are + * equal. This is semantically equivalent to + * KUNIT_EXPECT_TRUE(@test, (@left) == (@right)). See KUNIT_EXPECT_TRUE() for + * more information. + */ +#define KUNIT_EXPECT_PTR_EQ(test, left, right) \ + KUNIT_EXPECT_PTR_BINARY(test, left, ==, right) + +#define KUNIT_EXPECT_PTR_EQ_MSG(test, left, right, fmt, ...) \ + KUNIT_EXPECT_PTR_BINARY_MSG(test, \ + left, \ + ==, \ + right, \ + fmt, \ + ##__VA_ARGS__) + +/** + * KUNIT_EXPECT_NE() - An expectation that @left and @right are not equal. + * @test: The test context object. + * @left: an arbitrary expression that evaluates to a primitive C type. + * @right: an arbitrary expression that evaluates to a primitive C type. + * + * Sets an expectation that the values that @left and @right evaluate to are not + * equal. This is semantically equivalent to + * KUNIT_EXPECT_TRUE(@test, (@left) != (@right)). See KUNIT_EXPECT_TRUE() for + * more information. + */ +#define KUNIT_EXPECT_NE(test, left, right) \ + KUNIT_EXPECT_BINARY(test, left, !=, right) + +#define KUNIT_EXPECT_NE_MSG(test, left, right, fmt, ...) \ + KUNIT_EXPECT_BINARY_MSG(test, \ + left, \ + !=, \ + right, \ + fmt, \ + ##__VA_ARGS__) + +/** + * KUNIT_EXPECT_PTR_NE() - Expects that pointers @left and @right are not equal. + * @test: The test context object. + * @left: an arbitrary expression that evaluates to a pointer. + * @right: an arbitrary expression that evaluates to a pointer. + * + * Sets an expectation that the values that @left and @right evaluate to are not + * equal. This is semantically equivalent to + * KUNIT_EXPECT_TRUE(@test, (@left) != (@right)). See KUNIT_EXPECT_TRUE() for + * more information. + */ +#define KUNIT_EXPECT_PTR_NE(test, left, right) \ + KUNIT_EXPECT_PTR_BINARY(test, left, !=, right) + +#define KUNIT_EXPECT_PTR_NE_MSG(test, left, right, fmt, ...) \ + KUNIT_EXPECT_PTR_BINARY_MSG(test, \ + left, \ + !=, \ + right, \ + fmt, \ + ##__VA_ARGS__) + +/** + * KUNIT_EXPECT_LT() - An expectation that @left is less than @right. + * @test: The test context object. + * @left: an arbitrary expression that evaluates to a primitive C type. + * @right: an arbitrary expression that evaluates to a primitive C type. + * + * Sets an expectation that the value that @left evaluates to is less than the + * value that @right evaluates to. This is semantically equivalent to + * KUNIT_EXPECT_TRUE(@test, (@left) < (@right)). See KUNIT_EXPECT_TRUE() for + * more information. + */ +#define KUNIT_EXPECT_LT(test, left, right) \ + KUNIT_EXPECT_BINARY(test, left, <, right) + +#define KUNIT_EXPECT_LT_MSG(test, left, right, fmt, ...) \ + KUNIT_EXPECT_BINARY_MSG(test, \ + left, \ + <, \ + right, \ + fmt, \ + ##__VA_ARGS__) + +/** + * KUNIT_EXPECT_LE() - Expects that @left is less than or equal to @right. + * @test: The test context object. + * @left: an arbitrary expression that evaluates to a primitive C type. + * @right: an arbitrary expression that evaluates to a primitive C type. + * + * Sets an expectation that the value that @left evaluates to is less than or + * equal to the value that @right evaluates to. Semantically this is equivalent + * to KUNIT_EXPECT_TRUE(@test, (@left) <= (@right)). See KUNIT_EXPECT_TRUE() for + * more information. + */ +#define KUNIT_EXPECT_LE(test, left, right) \ + KUNIT_EXPECT_BINARY(test, left, <=, right) + +#define KUNIT_EXPECT_LE_MSG(test, left, right, fmt, ...) \ + KUNIT_EXPECT_BINARY_MSG(test, \ + left, \ + <=, \ + right, \ + fmt, \ + ##__VA_ARGS__) + +/** + * KUNIT_EXPECT_GT() - An expectation that @left is greater than @right. + * @test: The test context object. + * @left: an arbitrary expression that evaluates to a primitive C type. + * @right: an arbitrary expression that evaluates to a primitive C type. + * + * Sets an expectation that the value that @left evaluates to is greater than + * the value that @right evaluates to. This is semantically equivalent to + * KUNIT_EXPECT_TRUE(@test, (@left) > (@right)). See KUNIT_EXPECT_TRUE() for + * more information. + */ +#define KUNIT_EXPECT_GT(test, left, right) \ + KUNIT_EXPECT_BINARY(test, left, >, right) + +#define KUNIT_EXPECT_GT_MSG(test, left, right, fmt, ...) \ + KUNIT_EXPECT_BINARY_MSG(test, \ + left, \ + >, \ + right, \ + fmt, \ + ##__VA_ARGS__) + +/** + * KUNIT_EXPECT_GE() - Expects that @left is greater than or equal to @right. + * @test: The test context object. + * @left: an arbitrary expression that evaluates to a primitive C type. + * @right: an arbitrary expression that evaluates to a primitive C type. + * + * Sets an expectation that the value that @left evaluates to is greater than + * the value that @right evaluates to. This is semantically equivalent to + * KUNIT_EXPECT_TRUE(@test, (@left) >= (@right)). See KUNIT_EXPECT_TRUE() for + * more information. + */ +#define KUNIT_EXPECT_GE(test, left, right) \ + KUNIT_EXPECT_BINARY(test, left, >=, right) + +#define KUNIT_EXPECT_GE_MSG(test, left, right, fmt, ...) \ + KUNIT_EXPECT_BINARY_MSG(test, \ + left, \ + >=, \ + right, \ + fmt, \ + ##__VA_ARGS__) + +/** + * KUNIT_EXPECT_STREQ() - Expects that strings @left and @right are equal. + * @test: The test context object. + * @left: an arbitrary expression that evaluates to a null terminated string. + * @right: an arbitrary expression that evaluates to a null terminated string. + * + * Sets an expectation that the values that @left and @right evaluate to are + * equal. This is semantically equivalent to + * KUNIT_EXPECT_TRUE(@test, !strcmp((@left), (@right))). See KUNIT_EXPECT_TRUE() + * for more information. + */ +#define KUNIT_EXPECT_STREQ(test, left, right) do { \ + struct kunit_stream *__stream = KUNIT_EXPECT_START(test); \ + typeof(left) __left = (left); \ + typeof(right) __right = (right); \ + \ + kunit_stream_add(__stream, "Expected " #left " == " #right ", but\n"); \ + kunit_stream_add(__stream, "\t\t%s == %s\n", #left, __left); \ + kunit_stream_add(__stream, "\t\t%s == %s\n", #right, __right); \ + \ + KUNIT_EXPECT_END(test, !strcmp(left, right), __stream); \ +} while (0) + +#define KUNIT_EXPECT_STREQ_MSG(test, left, right, fmt, ...) do { \ + struct kunit_stream *__stream = KUNIT_EXPECT_START(test); \ + typeof(left) __left = (left); \ + typeof(right) __right = (right); \ + \ + kunit_stream_add(__stream, "Expected " #left " == " #right ", but\n"); \ + kunit_stream_add(__stream, "\t\t%s == %s\n", #left, __left); \ + kunit_stream_add(__stream, "\t\t%s == %s\n", #right, __right); \ + kunit_stream_add(__stream, fmt, ##__VA_ARGS__); \ + \ + KUNIT_EXPECT_END(test, !strcmp(left, right), __stream); \ +} while (0) + +/** + * KUNIT_EXPECT_STRNEQ() - Expects that strings @left and @right are not equal. + * @test: The test context object. + * @left: an arbitrary expression that evaluates to a null terminated string. + * @right: an arbitrary expression that evaluates to a null terminated string. + * + * Sets an expectation that the values that @left and @right evaluate to are + * not equal. This is semantically equivalent to + * KUNIT_EXPECT_TRUE(@test, strcmp((@left), (@right))). See KUNIT_EXPECT_TRUE() + * for more information. + */ +#define KUNIT_EXPECT_STRNEQ(test, left, right) do { \ + struct kunit_stream *__stream = KUNIT_EXPECT_START(test); \ + typeof(left) __left = (left); \ + typeof(right) __right = (right); \ + \ + kunit_stream_add(__stream, "Expected " #left " != " #right ", but\n"); \ + kunit_stream_add(__stream, "\t\t%s == %s\n", #left, __left); \ + kunit_stream_add(__stream, "\t\t%s == %s\n", #right, __right); \ + \ + KUNIT_EXPECT_END(test, strcmp(left, right), __stream); \ +} while (0) + +#define KUNIT_EXPECT_STRNEQ_MSG(test, left, right, fmt, ...) do { \ + struct kunit_stream *__stream = KUNIT_EXPECT_START(test); \ + typeof(left) __left = (left); \ + typeof(right) __right = (right); \ + \ + kunit_stream_add(__stream, "Expected " #left " != " #right ", but\n"); \ + kunit_stream_add(__stream, "\t\t%s == %s\n", #left, __left); \ + kunit_stream_add(__stream, "\t\t%s == %s\n", #right, __right); \ + kunit_stream_add(__stream, fmt, ##__VA_ARGS__); \ + \ + KUNIT_EXPECT_END(test, strcmp(left, right), __stream); \ +} while (0) + +/** + * KUNIT_EXPECT_NOT_ERR_OR_NULL() - Expects that @ptr is not null and not err. + * @test: The test context object. + * @ptr: an arbitrary pointer. + * + * Sets an expectation that the value that @ptr evaluates to is not null and not + * an errno stored in a pointer. This is semantically equivalent to + * KUNIT_EXPECT_TRUE(@test, !IS_ERR_OR_NULL(@ptr)). See KUNIT_EXPECT_TRUE() for + * more information. + */ +#define KUNIT_EXPECT_NOT_ERR_OR_NULL(test, ptr) do { \ + struct kunit_stream *__stream = KUNIT_EXPECT_START(test); \ + typeof(ptr) __ptr = (ptr); \ + \ + if (!__ptr) \ + kunit_stream_add(__stream, \ + "Expected " #ptr " is not null, but is\n"); \ + if (IS_ERR(__ptr)) \ + kunit_stream_add(__stream, \ + "Expected " #ptr " is not error, but is: %ld", \ + PTR_ERR(__ptr)); \ + \ + KUNIT_EXPECT_END(test, !IS_ERR_OR_NULL(__ptr), __stream); \ +} while (0) + +#define KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, ptr, fmt, ...) do { \ + struct kunit_stream *__stream = KUNIT_EXPECT_START(test); \ + typeof(ptr) __ptr = (ptr); \ + \ + if (!__ptr) { \ + kunit_stream_add(__stream, \ + "Expected " #ptr " is not null, but is\n"); \ + kunit_stream_add(__stream, fmt, ##__VA_ARGS__); \ + } \ + if (IS_ERR(__ptr)) { \ + kunit_stream_add(__stream, \ + "Expected " #ptr " is not error, but is: %ld", \ + PTR_ERR(__ptr)); \ + \ + kunit_stream_add(__stream, fmt, ##__VA_ARGS__); \ + } \ + KUNIT_EXPECT_END(test, !IS_ERR_OR_NULL(__ptr), __stream); \ +} while (0) + #endif /* _KUNIT_TEST_H */ diff --git a/kunit/test.c b/kunit/test.c index fdab07bb0b529..1f94a9224b03e 100644 --- a/kunit/test.c +++ b/kunit/test.c @@ -287,3 +287,69 @@ void kunit_printk(const char *level, va_end(args); } + +void kunit_expect_binary_msg(struct kunit *test, + long long left, const char *left_name, + long long right, const char *right_name, + bool compare_result, + const char *compare_name, + const char *file, + const char *line, + const char *fmt, ...) +{ + struct kunit_stream *stream = kunit_expect_start(test, file, line); + struct va_format vaf; + va_list args; + + kunit_stream_add(stream, + "Expected %s %s %s, but\n", + left_name, compare_name, right_name); + kunit_stream_add(stream, "\t\t%s == %lld\n", left_name, left); + kunit_stream_add(stream, "\t\t%s == %lld", right_name, right); + + if (fmt) { + va_start(args, fmt); + + vaf.fmt = fmt; + vaf.va = &args; + + kunit_stream_add(stream, "\n%pV", &vaf); + + va_end(args); + } + + kunit_expect_end(test, compare_result, stream); +} + +void kunit_expect_ptr_binary_msg(struct kunit *test, + void *left, const char *left_name, + void *right, const char *right_name, + bool compare_result, + const char *compare_name, + const char *file, + const char *line, + const char *fmt, ...) +{ + struct kunit_stream *stream = kunit_expect_start(test, file, line); + struct va_format vaf; + va_list args; + + kunit_stream_add(stream, + "Expected %s %s %s, but\n", + left_name, compare_name, right_name); + kunit_stream_add(stream, "\t\t%s == %pK\n", left_name, left); + kunit_stream_add(stream, "\t\t%s == %pK", right_name, right); + + if (fmt) { + va_start(args, fmt); + + vaf.fmt = fmt; + vaf.va = &args; + + kunit_stream_add(stream, "\n%pV", &vaf); + + va_end(args); + } + + kunit_expect_end(test, compare_result, stream); +}