Add a couple of simple tests for string_get_size(). Signed-off-by: Vitaly Kuznetsov <vkuzn...@redhat.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/