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Date: Fri, 21 Jan 2022 15:21:59 +0800
From: David Gow <davidgow@...gle.com>
To: Daniel Latypov <dlatypov@...gle.com>
Cc: Brendan Higgins <brendanhiggins@...gle.com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
KUnit Development <kunit-dev@...glegroups.com>,
"open list:KERNEL SELFTEST FRAMEWORK"
<linux-kselftest@...r.kernel.org>,
Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH 5/5] kunit: decrease macro layering for EQ/NE asserts
On Wed, Jan 19, 2022 at 6:35 AM Daniel Latypov <dlatypov@...gle.com> wrote:
>
> Introduce KUNIT_BINARY_PTR_ASSERTION to match KUNIT_BINARY_INT_ASSERTION
> and make KUNIT_EXPECT_EQ and KUNIT_EXPECT_PTREQ use these instead of
> shared intermediate macros that only remove the need to type "==" or
> "!=".
>
> The current macro chain looks like:
> KUNIT_EXPECT_EQ_MSG => KUNIT_BINARY_EQ_MSG_ASSERTION => KUNIT_BASE_EQ_MSG_ASSERTION => KUNIT_BASE_BINARY_ASSERTION
> KUNIT_EXPECT_PTR_EQ_MSG => KUNIT_BINARY_PTR_EQ_MSG_ASSERTION => KUNIT_BASE_EQ_MSG_ASSERTION => KUNIT_BASE_BINARY_ASSERTION
> <ditto for NE and ASSERT>
>
> After this change:
> KUNIT_EXPECT_EQ_MSG => KUNIT_BINARY_INT_ASSERTION => KUNIT_BASE_BINARY_ASSERTION
> KUNIT_EXPECT_PTR_EQ_MSG => KUNIT_BINARY_PTR_ASSERTION => KUNIT_BASE_BINARY_ASSERTION
>
> Signed-off-by: Daniel Latypov <dlatypov@...gle.com>
> ---
This is great: the macros are much simpler and nicer now. In fact,
this whole series is one of the nicest I've seen for a while: I can't
think of any serious downsides to any of it.
Reviewed-by: David Gow <davidgow@...gle.com>
Thanks,
-- David
> include/kunit/test.h | 173 ++++++++++++-------------------------------
> 1 file changed, 49 insertions(+), 124 deletions(-)
>
> diff --git a/include/kunit/test.h b/include/kunit/test.h
> index 48cf520b69ce..bf82c313223b 100644
> --- a/include/kunit/test.h
> +++ b/include/kunit/test.h
> @@ -888,48 +888,6 @@ do { \
> ##__VA_ARGS__); \
> } while (0)
>
> -#define KUNIT_BASE_EQ_MSG_ASSERTION(test, \
> - assert_class, \
> - ASSERT_CLASS_INIT, \
> - assert_type, \
> - left, \
> - right, \
> - fmt, \
> - ...) \
> - KUNIT_BASE_BINARY_ASSERTION(test, \
> - assert_class, \
> - ASSERT_CLASS_INIT, \
> - assert_type, \
> - left, ==, right, \
> - fmt, \
> - ##__VA_ARGS__)
> -
> -#define KUNIT_BASE_NE_MSG_ASSERTION(test, \
> - assert_class, \
> - ASSERT_CLASS_INIT, \
> - assert_type, \
> - left, \
> - right, \
> - fmt, \
> - ...) \
> - KUNIT_BASE_BINARY_ASSERTION(test, \
> - assert_class, \
> - ASSERT_CLASS_INIT, \
> - assert_type, \
> - left, !=, right, \
> - fmt, \
> - ##__VA_ARGS__)
> -
> -#define KUNIT_BINARY_EQ_MSG_ASSERTION(test, assert_type, left, right, fmt, ...)\
> - KUNIT_BASE_EQ_MSG_ASSERTION(test, \
> - kunit_binary_assert, \
> - KUNIT_INIT_BINARY_ASSERT_STRUCT, \
> - assert_type, \
> - left, \
> - right, \
> - fmt, \
> - ##__VA_ARGS__)
> -
> #define KUNIT_BINARY_INT_ASSERTION(test, \
> assert_type, \
> left, \
> @@ -945,43 +903,18 @@ do { \
> fmt, \
> ##__VA_ARGS__)
>
> -#define KUNIT_BINARY_PTR_EQ_MSG_ASSERTION(test, \
> - assert_type, \
> - left, \
> - right, \
> - fmt, \
> - ...) \
> - KUNIT_BASE_EQ_MSG_ASSERTION(test, \
> - kunit_binary_ptr_assert, \
> - KUNIT_INIT_BINARY_PTR_ASSERT_STRUCT, \
> - assert_type, \
> - left, \
> - right, \
> - fmt, \
> - ##__VA_ARGS__)
> -
> -#define KUNIT_BINARY_NE_MSG_ASSERTION(test, assert_type, left, right, fmt, ...)\
> - KUNIT_BASE_NE_MSG_ASSERTION(test, \
> - kunit_binary_assert, \
> - KUNIT_INIT_BINARY_ASSERT_STRUCT, \
> - assert_type, \
> - left, \
> - right, \
> - fmt, \
> - ##__VA_ARGS__)
> -
> -#define KUNIT_BINARY_PTR_NE_MSG_ASSERTION(test, \
> - assert_type, \
> - left, \
> - right, \
> - fmt, \
> - ...) \
> - KUNIT_BASE_NE_MSG_ASSERTION(test, \
> +#define KUNIT_BINARY_PTR_ASSERTION(test, \
> + assert_type, \
> + left, \
> + op, \
> + right, \
> + fmt, \
> + ...) \
> + KUNIT_BASE_BINARY_ASSERTION(test, \
> kunit_binary_ptr_assert, \
> KUNIT_INIT_BINARY_PTR_ASSERT_STRUCT, \
> assert_type, \
> - left, \
> - right, \
> + left, op, right, \
> fmt, \
> ##__VA_ARGS__)
>
> @@ -1082,12 +1015,11 @@ do { \
> KUNIT_EXPECT_EQ_MSG(test, left, right, NULL)
>
> #define KUNIT_EXPECT_EQ_MSG(test, left, right, fmt, ...) \
> - KUNIT_BINARY_EQ_MSG_ASSERTION(test, \
> - KUNIT_EXPECTATION, \
> - left, \
> - right, \
> - fmt, \
> - ##__VA_ARGS__)
> + KUNIT_BINARY_INT_ASSERTION(test, \
> + KUNIT_EXPECTATION, \
> + left, ==, right, \
> + fmt, \
> + ##__VA_ARGS__)
>
> /**
> * KUNIT_EXPECT_PTR_EQ() - Expects that pointers @left and @right are equal.
> @@ -1104,12 +1036,11 @@ do { \
> KUNIT_EXPECT_PTR_EQ_MSG(test, left, right, NULL)
>
> #define KUNIT_EXPECT_PTR_EQ_MSG(test, left, right, fmt, ...) \
> - KUNIT_BINARY_PTR_EQ_MSG_ASSERTION(test, \
> - KUNIT_EXPECTATION, \
> - left, \
> - right, \
> - fmt, \
> - ##__VA_ARGS__)
> + KUNIT_BINARY_PTR_ASSERTION(test, \
> + KUNIT_EXPECTATION, \
> + left, ==, right, \
> + fmt, \
> + ##__VA_ARGS__)
>
> /**
> * KUNIT_EXPECT_NE() - An expectation that @left and @right are not equal.
> @@ -1126,12 +1057,11 @@ do { \
> KUNIT_EXPECT_NE_MSG(test, left, right, NULL)
>
> #define KUNIT_EXPECT_NE_MSG(test, left, right, fmt, ...) \
> - KUNIT_BINARY_NE_MSG_ASSERTION(test, \
> - KUNIT_EXPECTATION, \
> - left, \
> - right, \
> - fmt, \
> - ##__VA_ARGS__)
> + KUNIT_BINARY_INT_ASSERTION(test, \
> + KUNIT_EXPECTATION, \
> + left, !=, right, \
> + fmt, \
> + ##__VA_ARGS__)
>
> /**
> * KUNIT_EXPECT_PTR_NE() - Expects that pointers @left and @right are not equal.
> @@ -1148,12 +1078,11 @@ do { \
> KUNIT_EXPECT_PTR_NE_MSG(test, left, right, NULL)
>
> #define KUNIT_EXPECT_PTR_NE_MSG(test, left, right, fmt, ...) \
> - KUNIT_BINARY_PTR_NE_MSG_ASSERTION(test, \
> - KUNIT_EXPECTATION, \
> - left, \
> - right, \
> - fmt, \
> - ##__VA_ARGS__)
> + KUNIT_BINARY_PTR_ASSERTION(test, \
> + KUNIT_EXPECTATION, \
> + left, !=, right, \
> + fmt, \
> + ##__VA_ARGS__)
>
> /**
> * KUNIT_EXPECT_LT() - An expectation that @left is less than @right.
> @@ -1358,12 +1287,11 @@ do { \
> KUNIT_ASSERT_EQ_MSG(test, left, right, NULL)
>
> #define KUNIT_ASSERT_EQ_MSG(test, left, right, fmt, ...) \
> - KUNIT_BINARY_EQ_MSG_ASSERTION(test, \
> - KUNIT_ASSERTION, \
> - left, \
> - right, \
> - fmt, \
> - ##__VA_ARGS__)
> + KUNIT_BINARY_INT_ASSERTION(test, \
> + KUNIT_ASSERTION, \
> + left, ==, right, \
> + fmt, \
> + ##__VA_ARGS__)
>
> /**
> * KUNIT_ASSERT_PTR_EQ() - Asserts that pointers @left and @right are equal.
> @@ -1379,12 +1307,11 @@ do { \
> KUNIT_ASSERT_PTR_EQ_MSG(test, left, right, NULL)
>
> #define KUNIT_ASSERT_PTR_EQ_MSG(test, left, right, fmt, ...) \
> - KUNIT_BINARY_PTR_EQ_MSG_ASSERTION(test, \
> - KUNIT_ASSERTION, \
> - left, \
> - right, \
> - fmt, \
> - ##__VA_ARGS__)
> + KUNIT_BINARY_PTR_ASSERTION(test, \
> + KUNIT_ASSERTION, \
> + left, ==, right, \
> + fmt, \
> + ##__VA_ARGS__)
>
> /**
> * KUNIT_ASSERT_NE() - An assertion that @left and @right are not equal.
> @@ -1400,12 +1327,11 @@ do { \
> KUNIT_ASSERT_NE_MSG(test, left, right, NULL)
>
> #define KUNIT_ASSERT_NE_MSG(test, left, right, fmt, ...) \
> - KUNIT_BINARY_NE_MSG_ASSERTION(test, \
> - KUNIT_ASSERTION, \
> - left, \
> - right, \
> - fmt, \
> - ##__VA_ARGS__)
> + KUNIT_BINARY_INT_ASSERTION(test, \
> + KUNIT_ASSERTION, \
> + left, !=, right, \
> + fmt, \
> + ##__VA_ARGS__)
>
> /**
> * KUNIT_ASSERT_PTR_NE() - Asserts that pointers @left and @right are not equal.
> @@ -1422,12 +1348,11 @@ do { \
> KUNIT_ASSERT_PTR_NE_MSG(test, left, right, NULL)
>
> #define KUNIT_ASSERT_PTR_NE_MSG(test, left, right, fmt, ...) \
> - KUNIT_BINARY_PTR_NE_MSG_ASSERTION(test, \
> - KUNIT_ASSERTION, \
> - left, \
> - right, \
> - fmt, \
> - ##__VA_ARGS__)
> + KUNIT_BINARY_PTR_ASSERTION(test, \
> + KUNIT_ASSERTION, \
> + left, !=, right, \
> + fmt, \
> + ##__VA_ARGS__)
> /**
> * KUNIT_ASSERT_LT() - An assertion that @left is less than @right.
> * @test: The test context object.
> --
> 2.34.1.703.g22d0c6ccf7-goog
>
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