Added new test that verifies that rte_jhash_1words,
rte_jhash_2words and rte_jhash_3words return the same
values as rte_jhash.
Note that this patch has been added after the update
of the jhash function because these 3 functions did not
return the same values as rte_jhash before
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch at intel.com>
---
app/test/test_hash_functions.c | 48 ++++++++++++++++++++++++++++++++++++++++
1 files changed, 48 insertions(+), 0 deletions(-)
diff --git a/app/test/test_hash_functions.c b/app/test/test_hash_functions.c
index 04b2862..7c830b2 100644
--- a/app/test/test_hash_functions.c
+++ b/app/test/test_hash_functions.c
@@ -241,6 +241,51 @@ verify_jhash_32bits(void)
}
/*
+ * Verify that rte_jhash and rte_jhash_1word, rte_jhash_2words
+ * and rte_jhash_3words return the same
+ */
+static int
+verify_jhash_words(void)
+{
+ unsigned i;
+ uint32_t key[3];
+ uint32_t hash, hash_words;
+
+ for (i = 0; i < 3; i++)
+ key[i] = rand();
+
+ /* Test rte_jhash_1word */
+ hash = rte_jhash(key, 4, 0);
+ hash_words = rte_jhash_1word(key[0], 0);
+ if (hash != hash_words) {
+ printf("rte_jhash returns different value (0x%x)"
+ "than rte_jhash_1word (0x%x)\n",
+ hash, hash_words);
+ return -1;
+ }
+ /* Test rte_jhash_2words */
+ hash = rte_jhash(key, 8, 0);
+ hash_words = rte_jhash_2words(key[0], key[1], 0);
+ if (hash != hash_words) {
+ printf("rte_jhash returns different value (0x%x)"
+ "than rte_jhash_2words (0x%x)\n",
+ hash, hash_words);
+ return -1;
+ }
+ /* Test rte_jhash_3words */
+ hash = rte_jhash(key, 12, 0);
+ hash_words = rte_jhash_3words(key[0], key[1], key[2], 0);
+ if (hash != hash_words) {
+ printf("rte_jhash returns different value (0x%x)"
+ "than rte_jhash_3words (0x%x)\n",
+ hash, hash_words);
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
* Run all functional tests for hash functions
*/
static int
@@ -252,6 +297,9 @@ run_hash_func_tests(void)
if (verify_jhash_32bits() != 0)
return -1;
+ if (verify_jhash_words() != 0)
+ return -1;
+
return 0;
}
--
1.7.4.1
