[PATCH v2 3/3] app/test: add test for rte_ffs32 and rte_ffs64 functions.

[Andre Muezerie]

Add tests for new rte_ffs32 and rte_ffs64 functions.

Signed-off-by: Andre Muezerie <andre...@linux.microsoft.com>
---
 app/test/test_bitops.c | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/app/test/test_bitops.c b/app/test/test_bitops.c
index 78a7df6bb1..dd374d7883 100644
--- a/app/test/test_bitops.c
+++ b/app/test/test_bitops.c
@@ -406,6 +406,42 @@ test_bit_relaxed_test_set_clear(void)
        return TEST_SUCCESS;
 }
 
+static int
+test_bit_scan_forward(void)
+{
+       unsigned int bit_nr;
+
+       TEST_ASSERT((bit_nr = rte_ffs32(0)) == 0,
+               "rte_ffs32 returned unexpected %d", bit_nr);
+
+       for (int i = 0; i < 32; ++i) {
+               uint32_t n = RTE_BIT32(i);
+
+               TEST_ASSERT((bit_nr = rte_ffs32(n)) == (unsigned int)(i+1),
+                       "rte_ffs32 returned unexpected %d", bit_nr);
+       }
+
+       return TEST_SUCCESS;
+}
+
+static int
+test_bit_scan_forward64(void)
+{
+       unsigned int bit_nr;
+
+       TEST_ASSERT((bit_nr = rte_ffs64(0)) == 0,
+               "rte_ffs64 returned unexpected %d", bit_nr);
+
+       for (int i = 0; i < 64; ++i) {
+               uint64_t n = RTE_BIT64(i);
+
+               TEST_ASSERT((bit_nr = rte_ffs64(n)) == (unsigned int)(i+1),
+                       "rte_ffs64 returned unexpected %d", bit_nr);
+       }
+
+       return TEST_SUCCESS;
+}
+
 static struct unit_test_suite test_suite = {
        .suite_name = "Bitops test suite",
        .unit_test_cases = {
@@ -428,6 +464,8 @@ static struct unit_test_suite test_suite = {
                TEST_CASE(test_bit_relaxed_set),
                TEST_CASE(test_bit_relaxed_clear),
                TEST_CASE(test_bit_relaxed_test_set_clear),
+               TEST_CASE(test_bit_scan_forward),
+               TEST_CASE(test_bit_scan_forward64),
                TEST_CASES_END()
        }
 };
-- 
2.47.0.vfs.0.3