github.com/lfch/etcd-io/tests/v3@v3.0.0-20221004140520-eac99acd3e9d/integration/clientv3/mirror_test.go (about)

     1  // Copyright 2016 The etcd Authors
     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  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package clientv3test
    16  
    17  import (
    18  	"context"
    19  	"fmt"
    20  	"reflect"
    21  	"sync"
    22  	"testing"
    23  	"time"
    24  
    25  	"github.com/lfch/etcd-io/api/v3/mvccpb"
    26  	"github.com/lfch/etcd-io/client/v3/mirror"
    27  	integration2 "github.com/lfch/etcd-io/tests/v3/framework/integration"
    28  )
    29  
    30  func TestMirrorSync(t *testing.T) {
    31  	integration2.BeforeTest(t)
    32  
    33  	clus := integration2.NewCluster(t, &integration2.ClusterConfig{Size: 1})
    34  	defer clus.Terminate(t)
    35  
    36  	c := clus.Client(0)
    37  	_, err := c.KV.Put(context.TODO(), "foo", "bar")
    38  	if err != nil {
    39  		t.Fatal(err)
    40  	}
    41  
    42  	syncer := mirror.NewSyncer(c, "", 0)
    43  	gch, ech := syncer.SyncBase(context.TODO())
    44  	wkvs := []*mvccpb.KeyValue{{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 2, Version: 1}}
    45  
    46  	for g := range gch {
    47  		if !reflect.DeepEqual(g.Kvs, wkvs) {
    48  			t.Fatalf("kv = %v, want %v", g.Kvs, wkvs)
    49  		}
    50  	}
    51  
    52  	for e := range ech {
    53  		t.Fatalf("unexpected error %v", e)
    54  	}
    55  
    56  	wch := syncer.SyncUpdates(context.TODO())
    57  
    58  	_, err = c.KV.Put(context.TODO(), "foo", "bar")
    59  	if err != nil {
    60  		t.Fatal(err)
    61  	}
    62  
    63  	select {
    64  	case r := <-wch:
    65  		wkv := &mvccpb.KeyValue{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 3, Version: 2}
    66  		if !reflect.DeepEqual(r.Events[0].Kv, wkv) {
    67  			t.Fatalf("kv = %v, want %v", r.Events[0].Kv, wkv)
    68  		}
    69  	case <-time.After(time.Second):
    70  		t.Fatal("failed to receive update in one second")
    71  	}
    72  }
    73  
    74  func TestMirrorSyncBase(t *testing.T) {
    75  	integration2.BeforeTest(t)
    76  
    77  	cluster := integration2.NewCluster(t, &integration2.ClusterConfig{Size: 1})
    78  	defer cluster.Terminate(t)
    79  
    80  	cli := cluster.Client(0)
    81  	ctx := context.TODO()
    82  
    83  	keyCh := make(chan string)
    84  	var wg sync.WaitGroup
    85  
    86  	for i := 0; i < 50; i++ {
    87  		wg.Add(1)
    88  
    89  		go func() {
    90  			defer wg.Done()
    91  
    92  			for key := range keyCh {
    93  				if _, err := cli.Put(ctx, key, "test"); err != nil {
    94  					t.Error(err)
    95  				}
    96  			}
    97  		}()
    98  	}
    99  
   100  	for i := 0; i < 2000; i++ {
   101  		keyCh <- fmt.Sprintf("test%d", i)
   102  	}
   103  
   104  	close(keyCh)
   105  	wg.Wait()
   106  
   107  	syncer := mirror.NewSyncer(cli, "test", 0)
   108  	respCh, errCh := syncer.SyncBase(ctx)
   109  
   110  	count := 0
   111  
   112  	for resp := range respCh {
   113  		count = count + len(resp.Kvs)
   114  		if !resp.More {
   115  			break
   116  		}
   117  	}
   118  
   119  	for err := range errCh {
   120  		t.Fatalf("unexpected error %v", err)
   121  	}
   122  
   123  	if count != 2000 {
   124  		t.Errorf("unexpected kv count: %d", count)
   125  	}
   126  }