github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/pkg/p2p/client_connector_test.go (about)

     1  // Copyright 2021 PingCAP, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package p2p
    15  
    16  import (
    17  	"context"
    18  	"fmt"
    19  	"net"
    20  	"sync"
    21  	"sync/atomic"
    22  	"testing"
    23  	"time"
    24  
    25  	"github.com/phayes/freeport"
    26  	"github.com/pingcap/tiflow/pkg/security"
    27  	"github.com/pingcap/tiflow/proto/p2p"
    28  	"github.com/stretchr/testify/require"
    29  	"google.golang.org/grpc"
    30  )
    31  
    32  type mockService struct {
    33  	callCount int32
    34  }
    35  
    36  func (s *mockService) SendMessage(server p2p.CDCPeerToPeer_SendMessageServer) error {
    37  	atomic.AddInt32(&s.callCount, 1)
    38  	return nil
    39  }
    40  
    41  func TestClientConnector(t *testing.T) {
    42  	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
    43  	defer cancel()
    44  	mockService := &mockService{}
    45  	grpcServer := grpc.NewServer()
    46  
    47  	port := freeport.GetPort()
    48  	addr := fmt.Sprintf("127.0.0.1:%d", port)
    49  	lis, err := net.Listen("tcp", addr)
    50  	require.NoError(t, err)
    51  
    52  	p2p.RegisterCDCPeerToPeerServer(grpcServer, mockService)
    53  
    54  	var wg sync.WaitGroup
    55  	wg.Add(1)
    56  	go func() {
    57  		defer wg.Done()
    58  		_ = grpcServer.Serve(lis)
    59  	}()
    60  
    61  	cc := newClientConnector()
    62  
    63  	client, release, err := cc.Connect(clientConnectOptions{
    64  		network:    "tcp",
    65  		addr:       addr,
    66  		credential: &security.Credential{},
    67  	})
    68  	require.NoError(t, err)
    69  	defer release()
    70  
    71  	_, err = client.SendMessage(ctx)
    72  	require.NoError(t, err)
    73  
    74  	require.Eventually(t, func() bool {
    75  		return atomic.LoadInt32(&mockService.callCount) == 1
    76  	}, time.Second*5, time.Millisecond*100)
    77  
    78  	cancel()
    79  	grpcServer.Stop()
    80  	wg.Wait()
    81  }