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Date: Thu, 29 Oct 2015 17:30:50 +0100
From: Vitaly Kuznetsov <vkuznets@...hat.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Rasmus Villemoes <linux@...musvillemoes.dk>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Ulf Hansson <ulf.hansson@...aro.org>,
James Bottomley <JBottomley@...n.com>,
Kees Cook <keescook@...omium.org>, linux-kernel@...r.kernel.org
Subject: [PATCH v3 4/4] lib/test-string_helpers.c: add string_get_size() tests
Add a couple of simple tests for string_get_size().
Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
---
lib/test-string_helpers.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 58 insertions(+)
diff --git a/lib/test-string_helpers.c b/lib/test-string_helpers.c
index 8e376ef..4c77b54 100644
--- a/lib/test-string_helpers.c
+++ b/lib/test-string_helpers.c
@@ -326,6 +326,61 @@ out:
kfree(out_test);
}
+#define string_get_size_maxbuf 16
+#define test_string_get_size_one(size, blk_size, exp_result10, exp_result2) \
+ do { \
+ BUILD_BUG_ON(sizeof(exp_result10) >= string_get_size_maxbuf); \
+ BUILD_BUG_ON(sizeof(exp_result2) >= string_get_size_maxbuf); \
+ __test_string_get_size((size), (blk_size), (exp_result10), \
+ (exp_result2)); \
+ } while (0)
+
+
+static __init void __test_string_get_size(const u64 size, const u32 blk_size,
+ const char *exp_result10,
+ const char *exp_result2)
+{
+ char buf10[string_get_size_maxbuf];
+ char buf2[string_get_size_maxbuf];
+
+ string_get_size(size, blk_size, STRING_UNITS_10, buf10, sizeof(buf10));
+ string_get_size(size, blk_size, STRING_UNITS_2, buf2, sizeof(buf2));
+
+ if (!memcmp(buf10, exp_result10, strlen(exp_result10) + 1))
+ goto check_stringunits_2;
+
+ buf10[sizeof(buf10) - 1] = '\0';
+
+ pr_warn("Test 'test_string_get_size' failed!\n");
+ pr_warn("string_get_size(size = %llu, blk_size = %u, units = %s)\n",
+ size, blk_size, "STRING_UNITS_10");
+ pr_warn("expected: '%s', got '%s'\n", exp_result10, buf10);
+
+check_stringunits_2:
+ if (!memcmp(buf2, exp_result2, strlen(exp_result2) + 1))
+ return;
+
+ buf2[sizeof(buf2) - 1] = '\0';
+
+ pr_warn("Test 'test_string_get_size' failed!\n");
+ pr_warn("string_get_size(size = %llu, blk_size = %u, units = %s)\n",
+ size, blk_size, "STRING_UNITS_2");
+ pr_warn("expected: '%s', got '%s'\n", exp_result2, buf2);
+}
+
+static __init void test_string_get_size(void)
+{
+ test_string_get_size_one(16384, 512, "8.38 MB", "8.00 MiB");
+ test_string_get_size_one(500118192, 512, "256 GB", "238 GiB");
+ test_string_get_size_one(8192, 4096, "33.5 MB", "32.0 MiB");
+ test_string_get_size_one(1100, 1, "1.10 kB", "1.07 KiB");
+ test_string_get_size_one(3000, 1900, "5.70 MB", "5.43 MiB");
+ test_string_get_size_one(U64_MAX, 4096, "75.5 ZB", "63.9 ZiB");
+ test_string_get_size_one(1999, U32_MAX, "8.58 TB", "7.80 TiB");
+ test_string_get_size_one(1, 512, "512 B", "512 B");
+ test_string_get_size_one(0, 512, "0 B", "0 B");
+}
+
static int __init test_string_helpers_init(void)
{
unsigned int i;
@@ -344,6 +399,9 @@ 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);
--
2.4.3
--
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