msgappv2_codec_test.go

Documentation: go.etcd.io/etcd/server/v3/etcdserver/api/rafthttp

     1  // Copyright 2015 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 rafthttp
    16  
    17  import (
    18  	"bytes"
    19  	"reflect"
    20  	"testing"
    21  
    22  	"go.etcd.io/etcd/client/pkg/v3/types"
    23  	"go.etcd.io/etcd/raft/v3/raftpb"
    24  	stats "go.etcd.io/etcd/server/v3/etcdserver/api/v2stats"
    25  )
    26  
    27  func TestMsgAppV2(t *testing.T) {
    28  	tests := []raftpb.Message{
    29  		linkHeartbeatMessage,
    30  		{
    31  			Type:    raftpb.MsgApp,
    32  			From:    1,
    33  			To:      2,
    34  			Term:    1,
    35  			LogTerm: 1,
    36  			Index:   0,
    37  			Entries: []raftpb.Entry{
    38  				{Term: 1, Index: 1, Data: []byte("some data")},
    39  				{Term: 1, Index: 2, Data: []byte("some data")},
    40  				{Term: 1, Index: 3, Data: []byte("some data")},
    41  			},
    42  		},
    43  		// consecutive MsgApp
    44  		{
    45  			Type:    raftpb.MsgApp,
    46  			From:    1,
    47  			To:      2,
    48  			Term:    1,
    49  			LogTerm: 1,
    50  			Index:   3,
    51  			Entries: []raftpb.Entry{
    52  				{Term: 1, Index: 4, Data: []byte("some data")},
    53  			},
    54  		},
    55  		linkHeartbeatMessage,
    56  		// consecutive MsgApp after linkHeartbeatMessage
    57  		{
    58  			Type:    raftpb.MsgApp,
    59  			From:    1,
    60  			To:      2,
    61  			Term:    1,
    62  			LogTerm: 1,
    63  			Index:   4,
    64  			Entries: []raftpb.Entry{
    65  				{Term: 1, Index: 5, Data: []byte("some data")},
    66  			},
    67  		},
    68  		// MsgApp with higher term
    69  		{
    70  			Type:    raftpb.MsgApp,
    71  			From:    1,
    72  			To:      2,
    73  			Term:    3,
    74  			LogTerm: 1,
    75  			Index:   5,
    76  			Entries: []raftpb.Entry{
    77  				{Term: 3, Index: 6, Data: []byte("some data")},
    78  			},
    79  		},
    80  		linkHeartbeatMessage,
    81  		// consecutive MsgApp
    82  		{
    83  			Type:    raftpb.MsgApp,
    84  			From:    1,
    85  			To:      2,
    86  			Term:    3,
    87  			LogTerm: 2,
    88  			Index:   6,
    89  			Entries: []raftpb.Entry{
    90  				{Term: 3, Index: 7, Data: []byte("some data")},
    91  			},
    92  		},
    93  		// consecutive empty MsgApp
    94  		{
    95  			Type:    raftpb.MsgApp,
    96  			From:    1,
    97  			To:      2,
    98  			Term:    3,
    99  			LogTerm: 2,
   100  			Index:   7,
   101  			Entries: nil,
   102  		},
   103  		linkHeartbeatMessage,
   104  	}
   105  	b := &bytes.Buffer{}
   106  	enc := newMsgAppV2Encoder(b, &stats.FollowerStats{})
   107  	dec := newMsgAppV2Decoder(b, types.ID(2), types.ID(1))
   108  
   109  	for i, tt := range tests {
   110  		if err := enc.encode(&tt); err != nil {
   111  			t.Errorf("#%d: unexpected encode message error: %v", i, err)
   112  			continue
   113  		}
   114  		m, err := dec.decode()
   115  		if err != nil {
   116  			t.Errorf("#%d: unexpected decode message error: %v", i, err)
   117  			continue
   118  		}
   119  		if !reflect.DeepEqual(m, tt) {
   120  			t.Errorf("#%d: message = %+v, want %+v", i, m, tt)
   121  		}
   122  	}
   123  }
   124
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