test: add route table test (#2)

test/test_route_table.cpp

@@ -0,0 +1,60 @@
+#include "braft/configuration.h"
+#include "braft/route_table.h"
+#include <gflags/gflags.h>
+#include <gtest/gtest.h>
+#include <vector>
+#include "../test/util.h"
+
+class RouteTableTest : public testing::Test {
+  void SetUp() {
+    GFLAGS_NS::SetCommandLineOption("minloglevel", "1");
+
+    ::system("rm -rf data");
+  }
+  void TearDown() { ::system("rm -rf data"); }
+};
+
+TEST_F(RouteTableTest, BasicTest) {
+    std::string group = "unittest";
+    std::vector<braft::PeerId> peers;
+    Configuration conf;
+    for (int i = 0; i < 3; i++) {
+        braft::PeerId peer;
+        peer.addr.ip = butil::my_ip();
+        peer.addr.port = 5011 + i;
+        peer.idx = 0;
+        peers.push_back(peer);
+        conf.add_peer(peer);
+    }
+
+    // start cluster
+    Cluster cluster(group, peers);
+    for (size_t i = 0; i < peers.size(); i++) {
+        ASSERT_EQ(0, cluster.start(peers[i].addr));
+    }
+    cluster.wait_leader();
+    braft::Node* leader = cluster.leader();
+
+    PeerId leader_id;
+    braft::rtb::update_configuration("unittest", conf);
+    braft::rtb::select_leader(group, &leader_id);
+    ASSERT_EQ(PeerId(), leader_id); // unvalid peerid. 
+
+    braft::rtb::refresh_leader(group, 3000 /*timeout ms*/);
+    braft::rtb::select_leader(group, &leader_id);
+    ASSERT_EQ(leader->node_id().peer_id, leader_id); // leader id.
+
+    braft::rtb::update_leader(group, peers[1]);
+    braft::rtb::select_leader(group, &leader_id);
+    ASSERT_EQ(peers[1], leader_id); // leader id.
+
+    braft::rtb::remove_group(group);
+    ASSERT_EQ(braft::rtb::select_leader(group, &leader_id), -1);
+}
+
+int main(int argc, char *argv[]) {
+  ::testing::InitGoogleTest(&argc, argv);
+  GFLAGS_NS::SetCommandLineOption("minloglevel", "1");
+  GFLAGS_NS::ParseCommandLineFlags(&argc, &argv, true);
+  return RUN_ALL_TESTS();
+}