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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 command
import (
"context"
"errors"
"fmt"
perrs "github.com/pingcap/errors"
"github.com/pingcap/tiup/pkg/cluster/spec"
"github.com/pingcap/tiup/pkg/meta"
"github.com/pingcap/tiup/pkg/proxy"
"github.com/pingcap/tiup/pkg/utils"
"github.com/spf13/cobra"
"golang.org/x/sync/errgroup"
// for sql/driver
_ "github.com/go-sql-driver/mysql"
)
func newTestCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "_test <cluster-name>",
Short: "test toolkit",
Hidden: true,
RunE: func(cmd *cobra.Command, args []string) error {
if len(args) < 1 {
return cmd.Help()
}
clusterName := args[0]
exist, err := tidbSpec.Exist(clusterName)
if err != nil {
return err
}
if !exist {
return perrs.Errorf("cannot start non-exists cluster %s", clusterName)
}
metadata, err := spec.ClusterMetadata(clusterName)
if err != nil && !errors.Is(perrs.Cause(err), meta.ErrValidate) {
return err
}
tcpProxy := proxy.GetTCPProxy()
switch args[1] {
case "writable":
return writable(metadata.Topology, tcpProxy)
case "data":
return data(metadata.Topology, tcpProxy)
default:
fmt.Println("unknown command: ", args[1])
return cmd.Help()
}
},
}
return cmd
}
// To check if test.ti_cluster has data
func data(topo *spec.Specification, tcpProxy *proxy.TCPProxy) error {
errg, _ := errgroup.WithContext(context.Background())
for _, spec := range topo.TiDBServers {
endpoint := utils.JoinHostPort(spec.Host, spec.Port)
errg.Go(func() error {
if tcpProxy != nil {
closeC := tcpProxy.Run([]string{endpoint})
defer tcpProxy.Close(closeC)
endpoint = tcpProxy.GetEndpoints()[0]
}
db, err := createDB(endpoint)
if err != nil {
return err
}
row := db.QueryRow("select count(*) from test.ti_cluster")
count := 0
if err := row.Scan(&count); err != nil {
return err
}
if count == 0 {
return errors.New("table test.ti_cluster is empty")
}
fmt.Printf("check data %s success\n", utils.JoinHostPort(spec.Host, spec.Port))
return nil
})
}
return errg.Wait()
}
func writable(topo *spec.Specification, tcpProxy *proxy.TCPProxy) error {
errg, _ := errgroup.WithContext(context.Background())
for _, spec := range topo.TiDBServers {
endpoint := utils.JoinHostPort(spec.Host, spec.Port)
errg.Go(func() error {
if tcpProxy != nil {
closeC := tcpProxy.Run([]string{endpoint})
defer tcpProxy.Close(closeC)
endpoint = tcpProxy.GetEndpoints()[0]
}
db, err := createDB(endpoint)
if err != nil {
return err
}
_, err = db.Exec("create table if not exists test.ti_cluster(id int AUTO_INCREMENT primary key, v int)")
if err != nil {
return err
}
_, err = db.Exec("insert into test.ti_cluster (v) values(1)")
if err != nil {
return err
}
fmt.Printf("write %s success\n", utils.JoinHostPort(spec.Host, spec.Port))
return nil
})
}
return errg.Wait()
}
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