etcd/mvcc/downgrade_test.go
Siyuan Zhang c65c1ea559 Add function to migrate 3.5 data online.
Signed-off-by: Siyuan Zhang <sizhang@google.com>
2024-02-20 08:55:55 -08:00

96 lines
2.6 KiB
Go

// Copyright 2024 The etcd Authors
//
// 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 mvcc
import (
"encoding/binary"
"encoding/json"
"testing"
"github.com/coreos/go-semver/semver"
"go.etcd.io/etcd/raft/raftpb"
)
func TestUnsafeDetectSchemaVersion(t *testing.T) {
tests := []struct {
storageVersion string
term uint64
confState *raftpb.ConfState
expectedVersion string
}{
{
storageVersion: "3.6.1",
expectedVersion: "3.6.1",
},
{
expectedVersion: "3.4.0",
},
{
term: 1,
expectedVersion: "3.5.0",
},
{
term: 1,
confState: &raftpb.ConfState{Voters: []uint64{1}},
expectedVersion: "3.5.0",
},
{
confState: &raftpb.ConfState{Voters: []uint64{1}},
expectedVersion: "3.5.0",
},
{
term: 0,
confState: &raftpb.ConfState{Voters: []uint64{}},
expectedVersion: "3.5.0",
},
{
term: 1,
confState: &raftpb.ConfState{Voters: []uint64{}},
expectedVersion: "3.5.0",
},
}
for _, tt := range tests {
s := newFakeStore()
b := s.b.(*fakeBackend)
if len(tt.storageVersion) > 0 {
b.tx.rangeRespc <- rangeResp{[][]byte{storageVersionKeyName}, [][]byte{[]byte(tt.storageVersion)}}
} else {
b.tx.rangeRespc <- rangeResp{nil, nil}
}
if tt.confState != nil {
confStateBytes, err := json.Marshal(tt.confState)
if err != nil {
t.Fatalf("Cannot marshal raftpb.ConfState, conf-state = %s, err = %s\n", tt.confState.String(), err)
}
b.tx.rangeRespc <- rangeResp{[][]byte{confStateKeyName}, [][]byte{confStateBytes}}
} else {
b.tx.rangeRespc <- rangeResp{nil, nil}
}
if tt.term > 0 {
bs2 := make([]byte, 8)
binary.BigEndian.PutUint64(bs2, tt.term)
b.tx.rangeRespc <- rangeResp{[][]byte{termKeyName}, [][]byte{bs2}}
} else {
b.tx.rangeRespc <- rangeResp{nil, nil}
}
v := UnsafeDetectSchemaVersion(s.lg, b.BatchTx())
expectedVersion := semver.Must(semver.NewVersion(tt.expectedVersion))
if !v.Equal(*expectedVersion) {
t.Fatalf("want version: %s, got: %s", expectedVersion, v)
}
}
}