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Subject[PATCH 3/3] lib/test-string_helpers.c: add string_get_size() tests
Date
Add a couple of simple tests for string_get_size().

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.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);
--
2.4.3


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