1 files changed, 274 insertions, 0 deletions
diff --git a/hicn-light/src/hicn/test/test-nexthops.cc b/hicn-light/src/hicn/test/test-nexthops.cc
new file mode 100644
index 000000000..9063298fd
--- /dev/null
+++ b/hicn-light/src/hicn/test/test-nexthops.cc
@@ -0,0 +1,274 @@
+/*
+ * Copyright (c) 2021 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+#include <netinet/in.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+
+extern "C" {
+#define WITH_TESTS
+#include <hicn/core/nexthops.h>
+#include <hicn/core/strategy.h>
+}
+
+#define NEXTHOP1 50
+#define NEXTHOP2 51
+#define NEXTHOP3 52
+
+class NexthopsTest : public ::testing::Test {
+ protected:
+  NexthopsTest() {}
+
+  virtual ~NexthopsTest() {}
+
+  nexthops_t nexthops;
+};
+
+TEST_F(NexthopsTest, NexthopsAdd) {
+  nexthops = NEXTHOPS_EMPTY;
+  nexthops_add(&nexthops, NEXTHOP1);
+
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 1);
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP1));
+
+  nexthops_add(&nexthops, NEXTHOP2);
+  nexthops_add(&nexthops, NEXTHOP3);
+
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 3);
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP3));
+}
+
+TEST_F(NexthopsTest, NexthopsRemove) {
+  nexthops = NEXTHOPS_EMPTY;
+  nexthops_add(&nexthops, NEXTHOP1);
+  nexthops_add(&nexthops, NEXTHOP2);
+  nexthops_add(&nexthops, NEXTHOP3);
+
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 3);
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP3));
+
+  nexthops_remove(&nexthops, NEXTHOP2);
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 2);
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP3));
+
+  nexthops_remove(&nexthops, NEXTHOP3);
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 1);
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP3));
+
+  nexthops_remove(&nexthops, NEXTHOP3);
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 1);
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP3));
+
+  nexthops_remove(&nexthops, NEXTHOP1);
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 0);
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP3));
+}
+
+TEST_F(NexthopsTest, NexthopsClear) {
+  nexthops = NEXTHOPS_EMPTY;
+  nexthops_add(&nexthops, NEXTHOP1);
+  nexthops_add(&nexthops, NEXTHOP2);
+  nexthops_add(&nexthops, NEXTHOP3);
+
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 3);
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP3));
+
+  nexthops_clear(&nexthops);
+
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 0);
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP3));
+}
+
+TEST_F(NexthopsTest, NexthopsGetOne) {
+  nexthops = NEXTHOPS_EMPTY;
+  nexthops_add(&nexthops, NEXTHOP1);
+  nexthops_add(&nexthops, NEXTHOP2);
+  nexthops_add(&nexthops, NEXTHOP3);
+
+  unsigned nexthop = nexthops_get_one(&nexthops);
+
+  EXPECT_TRUE(nexthops_contains(&nexthops, nexthop));
+}
+
+TEST_F(NexthopsTest, NexthopsSelect) {
+  int ret;
+  nexthops = NEXTHOPS_EMPTY;
+  nexthops_add(&nexthops, NEXTHOP1);
+  nexthops_add(&nexthops, NEXTHOP2);
+  nexthops_add(&nexthops, NEXTHOP3);
+
+  ret = nexthops_select(&nexthops, 2);
+
+  EXPECT_TRUE(ret == 0);
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 3);
+  EXPECT_TRUE(nexthops_get_curlen(&nexthops) == 1);
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP3));
+
+  ret = nexthops_select(&nexthops, 0);
+
+  EXPECT_TRUE(ret == 0);
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 3);
+  EXPECT_TRUE(nexthops_get_curlen(&nexthops) == 1);
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP3));
+
+  nexthops_reset(&nexthops);
+
+  EXPECT_TRUE(ret == 0);
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 3);
+  EXPECT_TRUE(nexthops_get_curlen(&nexthops) == 3);
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP3));
+
+  ret = nexthops_select(&nexthops, 4);
+
+  EXPECT_TRUE(ret == -1);
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 3);
+  EXPECT_TRUE(nexthops_get_curlen(&nexthops) == 3);
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP3));
+
+  ret = nexthops_select(&nexthops, 3);
+
+  EXPECT_TRUE(ret == -1);
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 3);
+  EXPECT_TRUE(nexthops_get_curlen(&nexthops) == 3);
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP3));
+}
+
+TEST_F(NexthopsTest, NexthopsDisable) {
+  int ret;
+  nexthops = NEXTHOPS_EMPTY;
+  nexthops_add(&nexthops, NEXTHOP1);
+  nexthops_add(&nexthops, NEXTHOP2);
+  nexthops_add(&nexthops, NEXTHOP3);
+
+  ret = nexthops_disable(&nexthops, 0);
+
+  EXPECT_TRUE(ret == 0);
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 3);
+  EXPECT_TRUE(nexthops_get_curlen(&nexthops) == 2);
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP3));
+
+  ret = nexthops_disable(&nexthops, 2);
+
+  EXPECT_TRUE(ret == 0);
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 3);
+  EXPECT_TRUE(nexthops_get_curlen(&nexthops) == 1);
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP3));
+
+  ret = nexthops_disable(&nexthops, 3);
+  EXPECT_TRUE(ret == -1);
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 3);
+  EXPECT_TRUE(nexthops_get_curlen(&nexthops) == 1);
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP3));
+}
+
+TEST_F(NexthopsTest, NexthopsState) {
+  strategy_nexthop_state_t state;
+  nexthops = NEXTHOPS_EMPTY;
+  nexthops_add(&nexthops, NEXTHOP1);
+  nexthops_add(&nexthops, NEXTHOP2);
+  nexthops_add(&nexthops, NEXTHOP3);
+  nexthops.state[0].load_balancer.pi = 100;
+  nexthops.state[1].load_balancer.pi = 200;
+  nexthops.state[2].load_balancer.pi = 300;
+
+  state = nexthops_state(&nexthops, 0);
+  EXPECT_TRUE(state.load_balancer.pi == 100);
+
+  state = nexthops_state(&nexthops, 1);
+  EXPECT_TRUE(state.load_balancer.pi == 200);
+
+  state = nexthops_state(&nexthops, 2);
+  EXPECT_TRUE(state.load_balancer.pi == 300);
+
+  nexthops_remove(&nexthops, NEXTHOP1);
+  EXPECT_TRUE(nexthops_get_len(&nexthops) == 2);
+  EXPECT_FALSE(nexthops_contains(&nexthops, NEXTHOP1));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP2));
+  EXPECT_TRUE(nexthops_contains(&nexthops, NEXTHOP3));
+
+  state = nexthops_state(&nexthops, 0);
+  EXPECT_TRUE(state.load_balancer.pi == 300);
+
+  state = nexthops_state(&nexthops, 1);
+  EXPECT_TRUE(state.load_balancer.pi == 200);
+}
+
+TEST_F(NexthopsTest, NexthopsEqual) {
+  nexthops = NEXTHOPS_EMPTY;
+  nexthops_t nexthops_eq = NEXTHOPS_EMPTY;
+  nexthops_t nexthops_not_eq = NEXTHOPS_EMPTY;
+
+  nexthops_add(&nexthops, NEXTHOP1);
+  nexthops_add(&nexthops, NEXTHOP3);
+  nexthops_add(&nexthops_eq, NEXTHOP1);
+  nexthops_add(&nexthops_eq, NEXTHOP3);
+  nexthops_add(&nexthops_not_eq, NEXTHOP2);
+
+  bool ret = nexthops_equal(&nexthops, &nexthops_eq);
+  EXPECT_TRUE(ret);
+
+  ret = nexthops_equal(&nexthops, &nexthops_not_eq);
+  EXPECT_FALSE(ret);
+}
+
+TEST_F(NexthopsTest, NexthopsCopy) {
+  nexthops = NEXTHOPS_EMPTY;
+  nexthops_t nexthops_eq = NEXTHOPS_EMPTY;
+
+  nexthops_add(&nexthops, NEXTHOP1);
+  nexthops_add(&nexthops, NEXTHOP3);
+  nexthops_copy(&nexthops, &nexthops_eq);
+
+  bool ret = nexthops_equal(&nexthops, &nexthops_eq);
+  EXPECT_TRUE(ret);
+}