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lib / string_helpers: refactoring the test suite

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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>
Cc: "John W . Linville" <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andy Shevchenko 2014-10-13 15:55:14 -07:00 committed by Linus Torvalds
parent d295634e96
commit 45ff337a54
1 changed files with 27 additions and 12 deletions
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39
lib/test-string_helpers.c
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@ -10,6 +10,26 @@
#include <linux/string.h> #include <linux/string.h>
#include <linux/string_helpers.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 { struct test_string {
const char *in; const char *in;
const char *out; 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 in[256];
char out_test[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); q_real = string_unescape(in, out_real, q_real, flags);
} }
if (q_real != q_test || memcmp(out_test, out_real, q_test)) { test_string_check_buf(name, flags, in, p - 1, out_real, q_real,
pr_warn("Test failed: flags = %u\n", flags); out_test, q_test);
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);
}
} }
static int __init test_string_helpers_init(void) 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"); pr_info("Running tests...\n");
for (i = 0; i < UNESCAPE_ANY + 1; i++) for (i = 0; i < UNESCAPE_ANY + 1; i++)
test_string_unescape(i, false); test_string_unescape("unescape", i, false);
test_string_unescape(get_random_int() % (UNESCAPE_ANY + 1), true); test_string_unescape("unescape inplace",
get_random_int() % (UNESCAPE_ANY + 1), true);
return -EINVAL; return -EINVAL;
} }