Add nat tests

unittest/vslib/Makefile.am

@@ -30,6 +30,7 @@ testslibsaivs_SOURCES =	main_libsaivs.cpp \
 				test_sai_vs_mcastfdb.cpp \
 				test_sai_vs_mirror.cpp \
 				test_sai_vs_mpls.cpp \
+				test_sai_vs_nat.cpp \
 				test_sai_vs_hash.cpp \
 				test_sai_vs_vlan.cpp \
 				test_sai_vs_hostif.cpp \

unittest/vslib/test_sai_vs_nat.cpp

@@ -0,0 +1,35 @@
+#include <gtest/gtest.h>
+
+extern "C" {
+#include "sai.h"
+}
+
+#include "swss/logger.h"
+
+TEST(libsaivs, nat)
+{
+    sai_nat_api_t *api = nullptr;
+
+    sai_api_query(SAI_API_NAT, (void**)&api);
+
+    EXPECT_NE(api, nullptr);
+
+    sai_nat_entry_t id ;
+
+    EXPECT_NE(SAI_STATUS_SUCCESS, api->create_nat_entry(&id,0,0));
+    EXPECT_NE(SAI_STATUS_SUCCESS, api->remove_nat_entry(0));
+    EXPECT_NE(SAI_STATUS_SUCCESS, api->set_nat_entry_attribute(0,0));
+    EXPECT_NE(SAI_STATUS_SUCCESS, api->get_nat_entry_attribute(0,0,0));
+
+    EXPECT_NE(SAI_STATUS_SUCCESS, api->create_nat_entries(0,0,0,0,SAI_BULK_OP_ERROR_MODE_IGNORE_ERROR,0));
+    EXPECT_NE(SAI_STATUS_SUCCESS, api->remove_nat_entries(0,0,SAI_BULK_OP_ERROR_MODE_IGNORE_ERROR,0));
+    EXPECT_NE(SAI_STATUS_SUCCESS, api->set_nat_entries_attribute(0,0,0,SAI_BULK_OP_ERROR_MODE_IGNORE_ERROR,0));
+    EXPECT_NE(SAI_STATUS_SUCCESS, api->get_nat_entries_attribute(0,0,0,0,SAI_BULK_OP_ERROR_MODE_IGNORE_ERROR,0));
+
+    sai_object_id_t id1;
+
+    EXPECT_NE(SAI_STATUS_SUCCESS, api->create_nat_zone_counter(&id1,0,0,0));
+    EXPECT_NE(SAI_STATUS_SUCCESS, api->remove_nat_zone_counter(0));
+    EXPECT_NE(SAI_STATUS_SUCCESS, api->set_nat_zone_counter_attribute(0,0));
+    EXPECT_NE(SAI_STATUS_SUCCESS, api->get_nat_zone_counter_attribute(0,0,0));
+}