open-consul/consul/server_test.go

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package consul
import (
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"fmt"
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"io/ioutil"
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"net"
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"os"
"testing"
"time"
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)
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var nextPort = 15000
func getPort() int {
p := nextPort
nextPort++
return p
}
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func tmpDir(t *testing.T) string {
dir, err := ioutil.TempDir("", "consul")
if err != nil {
t.Fatalf("err: %v", err)
}
return dir
}
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func testServer(t *testing.T) (string, *Server) {
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return testServerDC(t, "dc1")
}
func testServerDC(t *testing.T, dc string) (string, *Server) {
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dir := tmpDir(t)
config := DefaultConfig()
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config.Bootstrap = true
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config.Datacenter = dc
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config.DataDir = dir
// Adjust the ports
p := getPort()
config.NodeName = fmt.Sprintf("Node %d", p)
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config.RPCAddr = &net.TCPAddr{
IP: []byte{127, 0, 0, 1},
Port: p,
}
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config.SerfLANConfig.MemberlistConfig.BindAddr = "127.0.0.1"
config.SerfLANConfig.MemberlistConfig.BindPort = getPort()
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config.SerfLANConfig.MemberlistConfig.ProbeTimeout = 200 * time.Millisecond
config.SerfLANConfig.MemberlistConfig.ProbeInterval = time.Second
config.SerfLANConfig.MemberlistConfig.GossipInterval = 100 * time.Millisecond
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config.SerfWANConfig.MemberlistConfig.BindAddr = "127.0.0.1"
config.SerfWANConfig.MemberlistConfig.BindPort = getPort()
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config.SerfWANConfig.MemberlistConfig.ProbeTimeout = 200 * time.Millisecond
config.SerfWANConfig.MemberlistConfig.ProbeInterval = time.Second
config.SerfWANConfig.MemberlistConfig.GossipInterval = 100 * time.Millisecond
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config.RaftConfig.HeartbeatTimeout = 40 * time.Millisecond
config.RaftConfig.ElectionTimeout = 40 * time.Millisecond
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server, err := NewServer(config)
if err != nil {
t.Fatalf("err: %v", err)
}
return dir, server
}
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func TestServer_StartStop(t *testing.T) {
dir := tmpDir(t)
defer os.RemoveAll(dir)
config := DefaultConfig()
config.DataDir = dir
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private, err := GetPrivateIP()
if err != nil {
t.Fatalf("err: %v", err)
}
config.RPCAdvertise = &net.TCPAddr{
IP: private.IP,
Port: 8300,
}
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server, err := NewServer(config)
if err != nil {
t.Fatalf("err: %v", err)
}
if err := server.Shutdown(); err != nil {
t.Fatalf("err: %v", err)
}
// Idempotent
if err := server.Shutdown(); err != nil {
t.Fatalf("err: %v", err)
}
}
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func TestServer_JoinLAN(t *testing.T) {
dir1, s1 := testServer(t)
defer os.RemoveAll(dir1)
defer s1.Shutdown()
dir2, s2 := testServer(t)
defer os.RemoveAll(dir2)
defer s2.Shutdown()
// Try to join
addr := fmt.Sprintf("127.0.0.1:%d",
s1.config.SerfLANConfig.MemberlistConfig.BindPort)
if _, err := s2.JoinLAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
}
// Check the members
if len(s1.LANMembers()) != 2 {
t.Fatalf("bad len")
}
if len(s2.LANMembers()) != 2 {
t.Fatalf("bad len")
}
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}
func TestServer_JoinWAN(t *testing.T) {
dir1, s1 := testServer(t)
defer os.RemoveAll(dir1)
defer s1.Shutdown()
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dir2, s2 := testServerDC(t, "dc2")
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defer os.RemoveAll(dir2)
defer s2.Shutdown()
// Try to join
addr := fmt.Sprintf("127.0.0.1:%d",
s1.config.SerfWANConfig.MemberlistConfig.BindPort)
if _, err := s2.JoinWAN([]string{addr}); err != nil {
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t.Fatalf("err: %v", err)
}
// Check the members
if len(s1.WANMembers()) != 2 {
t.Fatalf("bad len")
}
if len(s2.WANMembers()) != 2 {
t.Fatalf("bad len")
}
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time.Sleep(10 * time.Millisecond)
// Check the remoteConsuls has both
if len(s1.remoteConsuls) != 2 {
t.Fatalf("remote consul missing")
}
if len(s2.remoteConsuls) != 2 {
t.Fatalf("remote consul missing")
}
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}
func TestServer_Leave(t *testing.T) {
dir1, s1 := testServer(t)
defer os.RemoveAll(dir1)
defer s1.Shutdown()
dir2, s2 := testServer(t)
defer os.RemoveAll(dir2)
defer s2.Shutdown()
// Try to join
addr := fmt.Sprintf("127.0.0.1:%d",
s1.config.SerfLANConfig.MemberlistConfig.BindPort)
if _, err := s2.JoinLAN([]string{addr}); err != nil {
t.Fatalf("err: %v", err)
}
time.Sleep(time.Second)
p1, _ := s1.raftPeers.Peers()
if len(p1) != 2 {
t.Fatalf("should have 2 peers: %v", p1)
}
p2, _ := s2.raftPeers.Peers()
if len(p2) != 2 {
t.Fatalf("should have 2 peers: %v", p2)
}
// Issue a leave
if err := s2.Leave(); err != nil {
t.Fatalf("err: %v", err)
}
// Should lose a peer
p1, _ = s1.raftPeers.Peers()
if len(p1) != 1 {
t.Fatalf("should have 1 peer: %v", p1)
}
}
func TestServer_RPC(t *testing.T) {
dir1, s1 := testServer(t)
defer os.RemoveAll(dir1)
defer s1.Shutdown()
var out struct{}
if err := s1.RPC("Status.Ping", struct{}{}, &out); err != nil {
t.Fatalf("err: %v", err)
}
}