140 lines
3.6 KiB
Go
140 lines
3.6 KiB
Go
// Copyright 2023 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,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package client
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/pingcap/errors"
|
|
"github.com/stretchr/testify/require"
|
|
"go.etcd.io/etcd/tests/v3/integration"
|
|
)
|
|
|
|
type mockCmdRequest struct {
|
|
V1 string `json:"v_1"`
|
|
V2 int `json:"v_2"`
|
|
}
|
|
|
|
type mockCmdResponse struct {
|
|
V3 string `json:"v_3"`
|
|
V4 int `json:"v_4"`
|
|
}
|
|
|
|
func TestCommandClient(t *testing.T) {
|
|
integration.BeforeTestExternal(t)
|
|
|
|
cluster := integration.NewClusterV3(t, &integration.ClusterConfig{Size: 1})
|
|
defer cluster.Terminate(t)
|
|
etcd := cluster.RandClient()
|
|
|
|
etcdCli := NewCommandClient(etcd)
|
|
mockCli := NewMockCommandClient()
|
|
|
|
ctx, cancel := context.WithTimeout(context.TODO(), time.Minute)
|
|
defer cancel()
|
|
|
|
resCh := make(chan *mockCmdResponse)
|
|
defer close(resCh)
|
|
|
|
for _, cli := range []CommandClient{etcdCli, mockCli} {
|
|
var sendRequestID, recvRequestID string
|
|
|
|
// send command
|
|
go func() {
|
|
var err error
|
|
var res mockCmdResponse
|
|
defer func() {
|
|
resCh <- &res
|
|
}()
|
|
req := &mockCmdRequest{V1: "1", V2: 2}
|
|
sendRequestID, err = cli.Command(ctx, "type1", req, &res)
|
|
require.NoError(t, err)
|
|
require.NotEmpty(t, sendRequestID)
|
|
}()
|
|
|
|
// check the received command and send response
|
|
watcher := cli.WatchCommand(ctx)
|
|
select {
|
|
case cmd, ok := <-watcher:
|
|
require.True(t, ok)
|
|
require.NotNil(t, cmd)
|
|
require.Equal(t, "type1", cmd.CmdType)
|
|
recvRequestID = cmd.RequestID
|
|
var gotReq mockCmdRequest
|
|
require.NoError(t, json.Unmarshal(cmd.Data, &gotReq))
|
|
require.Equal(t, "1", gotReq.V1)
|
|
require.Equal(t, 2, gotReq.V2)
|
|
ok, err := cli.TakeCommand(ctx, recvRequestID)
|
|
require.NoError(t, err)
|
|
require.True(t, ok)
|
|
require.NoError(t, cli.ResponseCommand(ctx, cmd.RequestID, &mockCmdResponse{V3: "3", V4: 4}))
|
|
case <-ctx.Done():
|
|
require.FailNow(t, ctx.Err().Error())
|
|
}
|
|
|
|
// check received response
|
|
select {
|
|
case res := <-resCh:
|
|
require.NotNil(t, res)
|
|
require.Equal(t, recvRequestID, sendRequestID)
|
|
require.Equal(t, "3", res.V3)
|
|
require.Equal(t, 4, res.V4)
|
|
case <-ctx.Done():
|
|
require.FailNow(t, ctx.Err().Error())
|
|
}
|
|
|
|
// Take command again should return false, nil
|
|
ok, err := cli.TakeCommand(ctx, recvRequestID)
|
|
require.NoError(t, err)
|
|
require.False(t, ok)
|
|
|
|
// send command and expect an error
|
|
go func() {
|
|
var err error
|
|
var res mockCmdResponse
|
|
defer func() {
|
|
resCh <- &res
|
|
}()
|
|
req := &mockCmdRequest{V1: "1", V2: 2}
|
|
sendRequestID, err = cli.Command(ctx, "type1", req, &res)
|
|
require.NotEmpty(t, sendRequestID)
|
|
require.EqualError(t, err, "mockErr")
|
|
}()
|
|
|
|
// response an error
|
|
watcher = cli.WatchCommand(ctx)
|
|
select {
|
|
case cmd, ok := <-watcher:
|
|
require.True(t, ok)
|
|
require.NotNil(t, cmd)
|
|
_, err = cli.TakeCommand(ctx, cmd.RequestID)
|
|
require.NoError(t, err)
|
|
require.NoError(t, cli.ResponseCommand(ctx, cmd.RequestID, errors.New("mockErr")))
|
|
case <-ctx.Done():
|
|
require.FailNow(t, ctx.Err().Error())
|
|
}
|
|
|
|
// wait send goroutine exit
|
|
select {
|
|
case <-resCh:
|
|
case <-ctx.Done():
|
|
require.FailNow(t, ctx.Err().Error())
|
|
}
|
|
}
|
|
}
|