etcd/raft/rafttest/interaction_env_handler_transfer_leadership.go

42 lines
1.2 KiB
Go

// Copyright 2021 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 rafttest
import (
"testing"
"github.com/cockroachdb/datadriven"
)
func (env *InteractionEnv) handleTransferLeadership(t *testing.T, d datadriven.TestData) error {
var from, to uint64
d.ScanArgs(t, "from", &from)
d.ScanArgs(t, "to", &to)
if from == 0 || from > uint64(len(env.Nodes)) {
t.Fatalf(`expected valid "from" argument`)
}
if to == 0 || to > uint64(len(env.Nodes)) {
t.Fatalf(`expected valid "to" argument`)
}
return env.transferLeadership(from, to)
}
// Initiate leadership transfer.
func (env *InteractionEnv) transferLeadership(from, to uint64) error {
fromIdx := from - 1
env.Nodes[fromIdx].TransferLeader(to)
return nil
}