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test: reduce redundant code about etcd server and logger #7007

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merged 8 commits into from
Sep 4, 2023
Merged

test: reduce redundant code about etcd server and logger #7007

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5bfd4a1
refactor etcd test server
lhy1024 Aug 30, 2023
60e5f07
refactor InitLogger
lhy1024 Aug 30, 2023
b22a84e
fix lint
lhy1024 Aug 30, 2023
11f0a90
fix #6890
lhy1024 Aug 30, 2023
4ccfaf6
fix test
lhy1024 Aug 30, 2023
4af12f3
address comments
lhy1024 Aug 30, 2023
b68b701
remove recursion
lhy1024 Sep 1, 2023
3923233
Merge branch 'master' of github.com:tikv/pd into etcd-test
lhy1024 Sep 4, 2023
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18 changes: 3 additions & 15 deletions pkg/audit/audit_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -24,11 +24,11 @@ import (
"testing"
"time"

"github.com/pingcap/log"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/stretchr/testify/require"
"github.com/tikv/pd/pkg/utils/requestutil"
"github.com/tikv/pd/pkg/utils/testutil"
)

func TestLabelMatcher(t *testing.T) {
Expand Down Expand Up @@ -93,7 +93,7 @@ func TestLocalLogBackendUsingFile(t *testing.T) {
t.Parallel()
re := require.New(t)
backend := NewLocalLogBackend(true)
fname := initLog()
fname := testutil.InitTempFileLogger("info")
defer os.RemoveAll(fname)
req, _ := http.NewRequest(http.MethodGet, "http://127.0.0.1:2379/test?test=test", strings.NewReader("testBody"))
re.False(backend.ProcessHTTPRequest(req))
Expand Down Expand Up @@ -125,7 +125,7 @@ func BenchmarkLocalLogAuditUsingTerminal(b *testing.B) {
func BenchmarkLocalLogAuditUsingFile(b *testing.B) {
b.StopTimer()
backend := NewLocalLogBackend(true)
fname := initLog()
fname := testutil.InitTempFileLogger("info")
defer os.RemoveAll(fname)
req, _ := http.NewRequest(http.MethodGet, "http://127.0.0.1:2379/test?test=test", strings.NewReader("testBody"))
b.StartTimer()
Expand All @@ -135,15 +135,3 @@ func BenchmarkLocalLogAuditUsingFile(b *testing.B) {
backend.ProcessHTTPRequest(req)
}
}

func initLog() string {
cfg := &log.Config{}
f, _ := os.CreateTemp("/tmp", "pd_tests")
fname := f.Name()
f.Close()
cfg.File.Filename = fname
cfg.Level = "info"
lg, p, _ := log.InitLogger(cfg)
log.ReplaceGlobals(lg, p)
return fname
}
132 changes: 25 additions & 107 deletions pkg/election/leadership_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -16,14 +16,12 @@ package election

import (
"context"
"fmt"
"os"
"strings"
"testing"
"time"

"github.com/pingcap/failpoint"
"github.com/pingcap/log"
"github.com/stretchr/testify/require"
"github.com/tikv/pd/pkg/utils/etcdutil"
"github.com/tikv/pd/pkg/utils/testutil"
Expand All @@ -35,27 +33,15 @@ const defaultLeaseTimeout = 1

func TestLeadership(t *testing.T) {
re := require.New(t)
cfg := etcdutil.NewTestSingleConfig(t)
etcd, err := embed.StartEtcd(cfg)
defer func() {
etcd.Close()
}()
re.NoError(err)

ep := cfg.LCUrls[0].String()
client, err := clientv3.New(clientv3.Config{
Endpoints: []string{ep},
})
re.NoError(err)

<-etcd.Server.ReadyNotify()
_, client, clean := etcdutil.NewTestEtcdCluster(t, 1)
defer clean()

// Campaign the same leadership
leadership1 := NewLeadership(client, "/test_leader", "test_leader_1")
leadership2 := NewLeadership(client, "/test_leader", "test_leader_2")

// leadership1 starts first and get the leadership
err = leadership1.Campaign(defaultLeaseTimeout, "test_leader_1")
err := leadership1.Campaign(defaultLeaseTimeout, "test_leader_1")
re.NoError(err)
// leadership2 starts then and can not get the leadership
err = leadership2.Campaign(defaultLeaseTimeout, "test_leader_2")
Expand Down Expand Up @@ -168,60 +154,24 @@ func TestExitWatch(t *testing.T) {
// Case6: transfer leader without client reconnection.
checkExitWatch(t, leaderKey, func(server *embed.Etcd, client *clientv3.Client) func() {
cfg1 := server.Config()
cfg2 := etcdutil.NewTestSingleConfig(t)
cfg2.InitialCluster = cfg1.InitialCluster + fmt.Sprintf(",%s=%s", cfg2.Name, &cfg2.LPUrls[0])
cfg2.ClusterState = embed.ClusterStateFlagExisting
peerURL := cfg2.LPUrls[0].String()
addResp, err := etcdutil.AddEtcdMember(client, []string{peerURL})
re.NoError(err)
etcd2, err := embed.StartEtcd(cfg2)
etcd2 := etcdutil.MustAddEtcdMember(t, &cfg1, client)
client2, err := etcdutil.CreateEtcdClient(nil, etcd2.Config().LCUrls)
re.NoError(err)
re.Equal(uint64(etcd2.Server.ID()), addResp.Member.ID)
<-etcd2.Server.ReadyNotify()
ep := cfg2.LCUrls[0].String()
client1, err := clientv3.New(clientv3.Config{
Endpoints: []string{ep},
})
re.NoError(err)

// close the original leader
server.Server.HardStop()
client1.Delete(context.Background(), leaderKey)
// delete the leader key with the new client
client2.Delete(context.Background(), leaderKey)
return func() {
etcd2.Close()
client2.Close()
}
})
// Case7: loss the quorum when the watch loop is running
checkExitWatch(t, leaderKey, func(server *embed.Etcd, client *clientv3.Client) func() {
tempStdoutFile, _ := os.CreateTemp("/tmp", "pd_tests")
defer os.RemoveAll(tempStdoutFile.Name())
logCfg := &log.Config{}
logCfg.File.Filename = tempStdoutFile.Name()
logCfg.Level = "info"
lg, p, _ := log.InitLogger(logCfg)
log.ReplaceGlobals(lg, p)

cfg1 := server.Config()
cfg2 := etcdutil.NewTestSingleConfig(t)
cfg2.InitialCluster = cfg1.InitialCluster + fmt.Sprintf(",%s=%s", cfg2.Name, &cfg2.LPUrls[0])
cfg2.ClusterState = embed.ClusterStateFlagExisting
peerURL := cfg2.LPUrls[0].String()
addResp, err := etcdutil.AddEtcdMember(client, []string{peerURL})
re.NoError(err)
etcd2, err := embed.StartEtcd(cfg2)
re.NoError(err)
re.Equal(uint64(etcd2.Server.ID()), addResp.Member.ID)
<-etcd2.Server.ReadyNotify()

cfg3 := etcdutil.NewTestSingleConfig(t)
cfg3.InitialCluster = cfg2.InitialCluster + fmt.Sprintf(",%s=%s", cfg3.Name, &cfg3.LPUrls[0])
cfg3.ClusterState = embed.ClusterStateFlagExisting
peerURL = cfg3.LPUrls[0].String()
addResp, err = etcdutil.AddEtcdMember(client, []string{peerURL})
re.NoError(err)
etcd3, err := embed.StartEtcd(cfg3)
re.NoError(err)
re.Equal(uint64(etcd3.Server.ID()), addResp.Member.ID)
<-etcd3.Server.ReadyNotify()
etcd2 := etcdutil.MustAddEtcdMember(t, &cfg1, client)
cfg2 := etcd2.Config()
etcd3 := etcdutil.MustAddEtcdMember(t, &cfg2, client)

resp2, err := client.MemberList(context.Background())
re.NoError(err)
Expand All @@ -237,24 +187,11 @@ func TestExitWatch(t *testing.T) {

func checkExitWatch(t *testing.T, leaderKey string, injectFunc func(server *embed.Etcd, client *clientv3.Client) func()) {
re := require.New(t)
cfg := etcdutil.NewTestSingleConfig(t)
etcd, err := embed.StartEtcd(cfg)
defer func() {
etcd.Close()
}()
re.NoError(err)

ep := cfg.LCUrls[0].String()
client1, err := clientv3.New(clientv3.Config{
Endpoints: []string{ep},
})
re.NoError(err)
client2, err := clientv3.New(clientv3.Config{
Endpoints: []string{ep},
})
servers, client1, clean := etcdutil.NewTestEtcdCluster(t, 1)
defer clean()
client2, err := etcdutil.CreateEtcdClient(nil, servers[0].Config().LCUrls)
re.NoError(err)

<-etcd.Server.ReadyNotify()
defer client2.Close()

leadership1 := NewLeadership(client1, leaderKey, "test_leader_1")
leadership2 := NewLeadership(client2, leaderKey, "test_leader_2")
Expand All @@ -268,7 +205,7 @@ func checkExitWatch(t *testing.T, leaderKey string, injectFunc func(server *embe
done <- struct{}{}
}()

cleanFunc := injectFunc(etcd, client2)
cleanFunc := injectFunc(servers[0], client2)
defer cleanFunc()

testutil.Eventually(re, func() bool {
Expand All @@ -283,33 +220,14 @@ func checkExitWatch(t *testing.T, leaderKey string, injectFunc func(server *embe

func TestRequestProgress(t *testing.T) {
checkWatcherRequestProgress := func(injectWatchChanBlock bool) {
tempStdoutFile, _ := os.CreateTemp("/tmp", "pd_tests")
defer os.RemoveAll(tempStdoutFile.Name())
logCfg := &log.Config{}
logCfg.File.Filename = tempStdoutFile.Name()
logCfg.Level = "debug"
lg, p, _ := log.InitLogger(logCfg)
log.ReplaceGlobals(lg, p)

re := require.New(t)
cfg := etcdutil.NewTestSingleConfig(t)
etcd, err := embed.StartEtcd(cfg)
defer func() {
etcd.Close()
}()
fname := testutil.InitTempFileLogger("debug")
defer os.RemoveAll(fname)
servers, client1, clean := etcdutil.NewTestEtcdCluster(t, 1)
defer clean()
client2, err := etcdutil.CreateEtcdClient(nil, servers[0].Config().LCUrls)
re.NoError(err)

ep := cfg.LCUrls[0].String()
client1, err := clientv3.New(clientv3.Config{
Endpoints: []string{ep},
})
re.NoError(err)
client2, err := clientv3.New(clientv3.Config{
Endpoints: []string{ep},
})
re.NoError(err)

<-etcd.Server.ReadyNotify()
defer client2.Close()

leaderKey := "/test_leader"
leadership1 := NewLeadership(client1, leaderKey, "test_leader_1")
Expand All @@ -328,14 +246,14 @@ func TestRequestProgress(t *testing.T) {
if injectWatchChanBlock {
failpoint.Enable("github.com/tikv/pd/pkg/election/watchChanBlock", "return(true)")
testutil.Eventually(re, func() bool {
b, _ := os.ReadFile(tempStdoutFile.Name())
b, _ := os.ReadFile(fname)
l := string(b)
return strings.Contains(l, "watch channel is blocked for a long time")
})
failpoint.Disable("github.com/tikv/pd/pkg/election/watchChanBlock")
} else {
testutil.Eventually(re, func() bool {
b, _ := os.ReadFile(tempStdoutFile.Name())
b, _ := os.ReadFile(fname)
l := string(b)
return strings.Contains(l, "watcher receives progress notify in watch loop")
})
Expand Down
33 changes: 4 additions & 29 deletions pkg/election/lease_test.go
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -22,25 +22,12 @@ import (
"github.com/stretchr/testify/require"
"github.com/tikv/pd/pkg/utils/etcdutil"
"go.etcd.io/etcd/clientv3"
"go.etcd.io/etcd/embed"
)

func TestLease(t *testing.T) {
re := require.New(t)
cfg := etcdutil.NewTestSingleConfig(t)
etcd, err := embed.StartEtcd(cfg)
defer func() {
etcd.Close()
}()
re.NoError(err)

ep := cfg.LCUrls[0].String()
client, err := clientv3.New(clientv3.Config{
Endpoints: []string{ep},
})
re.NoError(err)

<-etcd.Server.ReadyNotify()
_, client, clean := etcdutil.NewTestEtcdCluster(t, 1)
defer clean()

// Create the lease.
lease1 := &lease{
Expand Down Expand Up @@ -104,20 +91,8 @@ func TestLease(t *testing.T) {

func TestLeaseKeepAlive(t *testing.T) {
re := require.New(t)
cfg := etcdutil.NewTestSingleConfig(t)
etcd, err := embed.StartEtcd(cfg)
defer func() {
etcd.Close()
}()
re.NoError(err)

ep := cfg.LCUrls[0].String()
client, err := clientv3.New(clientv3.Config{
Endpoints: []string{ep},
})
re.NoError(err)

<-etcd.Server.ReadyNotify()
_, client, clean := etcdutil.NewTestEtcdCluster(t, 1)
defer clean()

// Create the lease.
lease := &lease{
Expand Down
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