forked from etcd-io/etcd
/
etcd_test.go
193 lines (146 loc) · 4.19 KB
/
etcd_test.go
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package main
import (
"fmt"
"github.com/coreos/go-etcd/etcd"
"math/rand"
"os"
//"strconv"
"testing"
"time"
)
// Create a single node and try to set value
func TestSingleNode(t *testing.T) {
procAttr := new(os.ProcAttr)
procAttr.Files = []*os.File{nil, os.Stdout, os.Stderr}
args := []string{"etcd", "-i", "-d=/tmp/node1"}
process, err := os.StartProcess("etcd", args, procAttr)
if err != nil {
t.Fatal("start process failed:" + err.Error())
return
}
defer process.Kill()
time.Sleep(time.Second)
etcd.SyncCluster()
// Test Set
result, err := etcd.Set("foo", "bar", 100)
if err != nil || result.Key != "/foo" || result.Value != "bar" || result.TTL != 99 {
if err != nil {
t.Fatal(err)
}
t.Fatalf("Set 1 failed with %s %s %v", result.Key, result.Value, result.TTL)
}
time.Sleep(time.Second)
result, err = etcd.Set("foo", "bar", 100)
if err != nil || result.Key != "/foo" || result.Value != "bar" || result.PrevValue != "bar" || result.TTL != 99 {
if err != nil {
t.Fatal(err)
}
t.Fatalf("Set 2 failed with %s %s %v", result.Key, result.Value, result.TTL)
}
}
// This test creates a single node and then set a value to it.
// Then this test kills the node and restart it and tries to get the value again.
func TestSingleNodeRecovery(t *testing.T) {
procAttr := new(os.ProcAttr)
procAttr.Files = []*os.File{nil, os.Stdout, os.Stderr}
args := []string{"etcd", "-d=/tmp/node1"}
process, err := os.StartProcess("etcd", append(args, "-i"), procAttr)
if err != nil {
t.Fatal("start process failed:" + err.Error())
return
}
time.Sleep(time.Second)
etcd.SyncCluster()
// Test Set
result, err := etcd.Set("foo", "bar", 100)
if err != nil || result.Key != "/foo" || result.Value != "bar" || result.TTL != 99 {
if err != nil {
t.Fatal(err)
}
t.Fatalf("Set 1 failed with %s %s %v", result.Key, result.Value, result.TTL)
}
time.Sleep(time.Second)
process.Kill()
process, err = os.StartProcess("etcd", args, procAttr)
defer process.Kill()
if err != nil {
t.Fatal("start process failed:" + err.Error())
return
}
time.Sleep(time.Second)
results, err := etcd.Get("foo")
if err != nil {
t.Fatal("get fail: " + err.Error())
return
}
result = results[0]
if err != nil || result.Key != "/foo" || result.Value != "bar" || result.TTL > 99 {
if err != nil {
t.Fatal(err)
}
t.Fatalf("Recovery Get failed with %s %s %v", result.Key, result.Value, result.TTL)
}
}
// Create a three nodes and try to set value
func TestSimpleMultiNode(t *testing.T) {
procAttr := new(os.ProcAttr)
procAttr.Files = []*os.File{nil, os.Stdout, os.Stderr}
clusterSize := 3
_, etcds, err := createCluster(clusterSize, procAttr)
if err != nil {
t.Fatal("cannot create cluster")
}
defer destroyCluster(etcds)
time.Sleep(time.Second)
etcd.SyncCluster()
// Test Set
result, err := etcd.Set("foo", "bar", 100)
if err != nil || result.Key != "/foo" || result.Value != "bar" || result.TTL != 99 {
if err != nil {
t.Fatal(err)
}
t.Fatalf("Set 1 failed with %s %s %v", result.Key, result.Value, result.TTL)
}
time.Sleep(time.Second)
result, err = etcd.Set("foo", "bar", 100)
if err != nil || result.Key != "/foo" || result.Value != "bar" || result.PrevValue != "bar" || result.TTL != 99 {
if err != nil {
t.Fatal(err)
}
t.Fatalf("Set 2 failed with %s %s %v", result.Key, result.Value, result.TTL)
}
}
// Create a five nodes
// Randomly kill one of the node and keep on sending set command to the cluster
func TestMultiNodeRecovery(t *testing.T) {
procAttr := new(os.ProcAttr)
procAttr.Files = []*os.File{nil, os.Stdout, os.Stderr}
clusterSize := 5
argGroup, etcds, err := createCluster(clusterSize, procAttr)
if err != nil {
t.Fatal("cannot create cluster")
}
defer destroyCluster(etcds)
time.Sleep(2 * time.Second)
etcd.SyncCluster()
stop := make(chan bool)
// Test Set
go set(stop)
for i := 0; i < 10; i++ {
num := rand.Int() % clusterSize
fmt.Println("kill node", num+1)
// kill
etcds[num].Kill()
etcds[num].Release()
time.Sleep(time.Second)
// restart
etcds[num], err = os.StartProcess("etcd", argGroup[num], procAttr)
if err != nil {
panic(err)
}
time.Sleep(time.Second)
}
fmt.Println("stop")
stop <- true
<-stop
}