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// Copyright 2020 PingCAP, Inc.
//
// 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package infosync
import (
"context"
"encoding/json"
"errors"
"fmt"
"os"
"path"
"reflect"
"testing"
"time"
. "github.com/pingcap/check"
"github.com/pingcap/failpoint"
"github.com/pingcap/tidb/ddl/util"
"github.com/pingcap/tidb/owner"
"go.etcd.io/etcd/integration"
)
func (is *InfoSyncer) getTopologyFromEtcd(ctx context.Context) (*topologyInfo, error) {
key := fmt.Sprintf("%s/%s:%v/info", TopologyInformationPath, is.info.IP, is.info.Port)
resp, err := is.etcdCli.Get(ctx, key)
if err != nil {
return nil, err
}
if len(resp.Kvs) == 0 {
return nil, errors.New("not-exists")
}
if len(resp.Kvs) != 1 {
return nil, errors.New("resp.Kvs error")
}
var ret topologyInfo
err = json.Unmarshal(resp.Kvs[0].Value, &ret)
if err != nil {
return nil, err
}
return &ret, nil
}
func (is *InfoSyncer) ttlKeyExists(ctx context.Context) (bool, error) {
key := fmt.Sprintf("%s/%s:%v/ttl", TopologyInformationPath, is.info.IP, is.info.Port)
resp, err := is.etcdCli.Get(ctx, key)
if err != nil {
return false, err
}
if len(resp.Kvs) >= 2 {
return false, errors.New("too many arguments in resp.Kvs")
}
return len(resp.Kvs) == 1, nil
}
func TestT(t *testing.T) {
CustomVerboseFlag = true
TestingT(t)
}
var _ = Suite(&testSuite{})
type testSuite struct {
}
func TestTopology(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
currentID := "test"
clus := integration.NewClusterV3(t, &integration.ClusterConfig{Size: 1})
defer clus.Terminate(t)
cli := clus.RandClient()
failpoint.Enable("github.com/pingcap/tidb/domain/infosync/mockServerInfo", "return(true)")
defer failpoint.Disable("github.com/pingcap/tidb/domain/infosync/mockServerInfo")
info, err := GlobalInfoSyncerInit(ctx, currentID, cli, false)
if err != nil {
t.Fatal(err)
}
err = info.newTopologySessionAndStoreServerInfo(ctx, owner.NewSessionDefaultRetryCnt)
if err != nil {
t.Fatal(err)
}
topo, err := info.getTopologyFromEtcd(ctx)
if err != nil {
t.Fatal(err)
}
if topo.StartTimestamp != 1282967700000 {
t.Fatal("start_timestamp of topology info does not match")
}
if !reflect.DeepEqual(*topo, info.getTopologyInfo()) {
t.Fatal("the info in etcd is not match with info.")
}
nonTTLKey := fmt.Sprintf("%s/%s:%v/info", TopologyInformationPath, info.info.IP, info.info.Port)
ttlKey := fmt.Sprintf("%s/%s:%v/ttl", TopologyInformationPath, info.info.IP, info.info.Port)
err = util.DeleteKeyFromEtcd(nonTTLKey, cli, owner.NewSessionDefaultRetryCnt, time.Second)
if err != nil {
t.Fatal(err)
}
// Refresh and re-test if the key exists
err = info.RestartTopology(ctx)
if err != nil {
t.Fatal(err)
}
topo, err = info.getTopologyFromEtcd(ctx)
if err != nil {
t.Fatal(err)
}
s, err := os.Executable()
if err != nil {
t.Fatal(err)
}
dir := path.Dir(s)
if topo.DeployPath != dir {
t.Fatal("DeployPath not match expected path")
}
if topo.StartTimestamp != 1282967700000 {
t.Fatal("start_timestamp of topology info does not match")
}
if !reflect.DeepEqual(*topo, info.getTopologyInfo()) {
t.Fatal("the info in etcd is not match with info.")
}
// check ttl key
ttlExists, err := info.ttlKeyExists(ctx)
if err != nil {
t.Fatal(err)
}
if !ttlExists {
t.Fatal("ttl non-exists")
}
err = util.DeleteKeyFromEtcd(ttlKey, cli, owner.NewSessionDefaultRetryCnt, time.Second)
if err != nil {
t.Fatal(err)
}
err = info.updateTopologyAliveness(ctx)
if err != nil {
t.Fatal(err)
}
ttlExists, err = info.ttlKeyExists(ctx)
if err != nil {
t.Fatal(err)
}
if !ttlExists {
t.Fatal("ttl non-exists")
}
}