[PATCH v3 02/11] lib / string_helpers: refactoring the test suite

Andy Shevchenko
2014-08-20T09:43:07Z

This patch prepares test suite for a following update. It introduces
test_string_check_buf() helper which checks the result and dumps an error.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
lib/test-string_helpers.c | 39 +++++++++++++++++++++++++++------------
1 file changed, 27 insertions(+), 12 deletions(-)

diff --git a/lib/test-string_helpers.c b/lib/test-string_helpers.c
index 6ac48de..ac44c92 100644
--- a/lib/test-string_helpers.c
+++ b/lib/test-string_helpers.c
@@ -10,6 +10,26 @@
#include <linux/string.h>
#include <linux/string_helpers.h>

+static __init bool test_string_check_buf(const char *name, unsigned int flags,
+ char *in, size_t p,
+ char *out_real, size_t q_real,
+ char *out_test, size_t q_test)
+{
+ if (q_real == q_test && !memcmp(out_test, out_real, q_test))
+ return true;
+
+ pr_warn("Test '%s' failed: flags = %u\n", name, flags);
+
+ print_hex_dump(KERN_WARNING, "Input: ", DUMP_PREFIX_NONE, 16, 1,
+ in, p, true);
+ print_hex_dump(KERN_WARNING, "Expected: ", DUMP_PREFIX_NONE, 16, 1,
+ out_test, q_test, true);
+ print_hex_dump(KERN_WARNING, "Got: ", DUMP_PREFIX_NONE, 16, 1,
+ out_real, q_real, true);
+
+ return false;
+}
+
struct test_string {
const char *in;
const char *out;
@@ -39,7 +59,8 @@ static const struct test_string strings[] __initconst = {
},
};

-static void __init test_string_unescape(unsigned int flags, bool inplace)
+static void __init test_string_unescape(const char *name, unsigned int flags,
+ bool inplace)
{
char in[256];
char out_test[256];
@@ -77,15 +98,8 @@ static void __init test_string_unescape(unsigned int flags, bool inplace)
q_real = string_unescape(in, out_real, q_real, flags);
}

- if (q_real != q_test || memcmp(out_test, out_real, q_test)) {
- pr_warn("Test failed: flags = %u\n", flags);
- print_hex_dump(KERN_WARNING, "Input: ",
- DUMP_PREFIX_NONE, 16, 1, in, p - 1, true);
- print_hex_dump(KERN_WARNING, "Expected: ",
- DUMP_PREFIX_NONE, 16, 1, out_test, q_test, true);
- print_hex_dump(KERN_WARNING, "Got: ",
- DUMP_PREFIX_NONE, 16, 1, out_real, q_real, true);
- }
+ test_string_check_buf(name, flags, in, p - 1, out_real, q_real,
+ out_test, q_test);
}

static int __init test_string_helpers_init(void)
@@ -94,8 +108,9 @@ static int __init test_string_helpers_init(void)

pr_info("Running tests...\n");
for (i = 0; i < UNESCAPE_ANY + 1; i++)
- test_string_unescape(i, false);
- test_string_unescape(get_random_int() % (UNESCAPE_ANY + 1), true);
+ test_string_unescape("unescape", i, false);
+ test_string_unescape("unescape inplace",
+ get_random_int() % (UNESCAPE_ANY + 1), true);

return -EINVAL;
}
--
2.1.0