linux-kernel - Re: [PATCH 3/3] lib/test-string_helpers.c: add string_get

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Message-ID: <1445872421.22669.69.camel@linux.intel.com>
Date:	Mon, 26 Oct 2015 17:13:41 +0200
From:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:	Vitaly Kuznetsov <vkuznets@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	James Bottomley <JBottomley@...n.com>,
	Kees Cook <keescook@...omium.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] lib/test-string_helpers.c: add string_get_size()
 tests

On Mon, 2015-10-26 at 14:55 +0100, Vitaly Kuznetsov wrote:
> Add a couple of simple tests for string_get_size().
> 

In linux-next this one (or similar?) is commit 29f3d140.
I don't think you need it in the series since it's in Andrew's patch
set already.


> Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
> ---
>  lib/test-string_helpers.c | 44
> ++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 44 insertions(+)
> 
> diff --git a/lib/test-string_helpers.c b/lib/test-string_helpers.c
> index 8e376ef..a158cb3 100644
> --- a/lib/test-string_helpers.c
> +++ b/lib/test-string_helpers.c
> @@ -326,6 +326,47 @@ out:
>  	kfree(out_test);
>  }
>  
> +#define string_get_size_maxbuf 16
> +#define test_string_get_size_one(size, blk_size, units,
> exp_result)            \
> +	do
> {                                                                   \
> +		BUILD_BUG_ON(sizeof(exp_result) >=
> string_get_size_maxbuf);    \
> +		__test_string_get_size((size), (blk_size),
> (units),            \
> +				       (exp_result));               
>            \
> +	} while (0)
> +
> +
> +static __init void __test_string_get_size(const u64 size, const u32
> blk_size,
> +					  const enum
> string_size_units units,
> +					  const char *exp_result)
> +{
> +	char buf[string_get_size_maxbuf];
> +
> +	string_get_size(size, blk_size, units, buf, sizeof(buf));
> +	if (!memcmp(buf, exp_result, strlen(exp_result) + 1))
> +		return;
> +
> +	buf[sizeof(buf) - 1] = '\0';
> +	pr_warn("Test 'test_string_get_size_one' failed!\n");
> +	pr_warn("string_get_size(size = %llu, blk_size = %u, units =
> %d\n",
> +		size, blk_size, units);
> +	pr_warn("expected: '%s', got '%s'\n", exp_result, buf);
> +}
> +
> +static __init void test_string_get_size(void)
> +{
> +	test_string_get_size_one(16384, 512, STRING_UNITS_2, "8.00
> MiB");
> +	test_string_get_size_one(500118192, 512, STRING_UNITS_2,
> "238 GiB");
> +	test_string_get_size_one(8192, 4096, STRING_UNITS_10, "33.5
> MB");
> +	test_string_get_size_one(1100, 1, STRING_UNITS_10, "1.10
> kB");
> +	test_string_get_size_one(3000, 1900, STRING_UNITS_10, "5.70
> MB");
> +	test_string_get_size_one(151234561234657, 3456789,
> STRING_UNITS_10,
> +				 "522 EB");
> +	test_string_get_size_one(1999, U32_MAX - 1, STRING_UNITS_10,
> +				 "8.58 TB");
> +	test_string_get_size_one(1, 512, STRING_UNITS_10, "512 B");
> +	test_string_get_size_one(0, 512, STRING_UNITS_10, "0 B");
> +}
> +
>  static int __init test_string_helpers_init(void)
>  {
>  	unsigned int i;
> @@ -344,6 +385,9 @@ static int __init test_string_helpers_init(void)
>  	for (i = 0; i < (ESCAPE_ANY_NP | ESCAPE_HEX) + 1; i++)
>  		test_string_escape("escape 1", escape1, i,
> TEST_STRING_2_DICT_1);
>  
> +	/* Test string_get_size() */
> +	test_string_get_size();
> +
>  	return -EINVAL;
>  }
>  module_init(test_string_helpers_init);

-- 
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Intel Finland Oy

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