Currently the only one combination is tested for overflow, i.e. rowsize = 16,
groupsize = 1, len = 1. Do various test to go through all possible branches.
Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
Cc: Rasmus Villemoes <li...@rasmusvillemoes.dk>
---
lib/test_hexdump.c | 21 ++++++++++++++++++---
1 file changed, 18 insertions(+), 3 deletions(-)
diff --git a/lib/test_hexdump.c b/lib/test_hexdump.c
index 16a7593..11d45f5 100644
--- a/lib/test_hexdump.c
+++ b/lib/test_hexdump.c
@@ -133,7 +133,9 @@ static void __init test_hexdump_set(int rowsize, bool ascii)
test_hexdump(len, rowsize, 1, ascii);
}
-static void __init test_hexdump_overflow(size_t buflen, bool ascii)
+static void __init test_hexdump_overflow(size_t buflen, size_t len,
+ int rowsize, int groupsize,
+ bool ascii)
{
char test[TEST_HEXDUMP_BUF_SIZE];
char buf[TEST_HEXDUMP_BUF_SIZE];
@@ -176,6 +178,19 @@ static void __init test_hexdump_overflow(size_t buflen,
bool ascii)
}
}
+static void __init test_hexdump_overflow_set(size_t buflen, bool ascii)
+{
+ unsigned int i = 0;
+ int rs = (get_random_int() % 2 + 1) * 16;
+
+ do {
+ int gs = 1 << i;
+ size_t len = get_random_int() % rs + gs;
+
+ test_hexdump_overflow(buflen, rounddown(len, gs), rs, gs,
ascii);
+ } while (i++ < 3);
+}
+
static int __init test_hexdump_init(void)
{
unsigned int i;
@@ -192,10 +207,10 @@ static int __init test_hexdump_init(void)
test_hexdump_set(rowsize, true);
for (i = 0; i <= TEST_HEXDUMP_BUF_SIZE; i++)
- test_hexdump_overflow(i, false);
+ test_hexdump_overflow_set(i, false);
for (i = 0; i <= TEST_HEXDUMP_BUF_SIZE; i++)
- test_hexdump_overflow(i, true);
+ test_hexdump_overflow_set(i, true);
return -EINVAL;
}
--
2.6.2
--
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