110 lines
2.9 KiB
Go
110 lines
2.9 KiB
Go
// Copyright 2019 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package confchange
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import (
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"errors"
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"fmt"
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"strconv"
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"strings"
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"testing"
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"github.com/cockroachdb/datadriven"
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pb "go.etcd.io/etcd/raft/raftpb"
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"go.etcd.io/etcd/raft/tracker"
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)
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func TestConfChangeDataDriven(t *testing.T) {
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datadriven.Walk(t, "testdata", func(t *testing.T, path string) {
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tr := tracker.MakeProgressTracker(10)
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c := Changer{
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Tracker: tr,
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LastIndex: 0, // incremented in this test with each cmd
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}
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// The test files use the commands
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// - simple: run a simple conf change (i.e. no joint consensus),
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// - enter-joint: enter a joint config, and
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// - leave-joint: leave a joint config.
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// The first two take a list of config changes, which have the following
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// syntax:
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// - vn: make n a voter,
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// - ln: make n a learner,
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// - rn: remove n, and
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// - un: update n.
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datadriven.RunTest(t, path, func(d *datadriven.TestData) string {
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defer func() {
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c.LastIndex++
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}()
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var ccs []pb.ConfChangeSingle
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toks := strings.Split(strings.TrimSpace(d.Input), " ")
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if toks[0] == "" {
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toks = nil
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}
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for _, tok := range toks {
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if len(tok) < 2 {
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return fmt.Sprintf("unknown token %s", tok)
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}
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var cc pb.ConfChangeSingle
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switch tok[0] {
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case 'v':
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cc.Type = pb.ConfChangeAddNode
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case 'l':
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cc.Type = pb.ConfChangeAddLearnerNode
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case 'r':
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cc.Type = pb.ConfChangeRemoveNode
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case 'u':
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cc.Type = pb.ConfChangeUpdateNode
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default:
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return fmt.Sprintf("unknown input: %s", tok)
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}
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id, err := strconv.ParseUint(tok[1:], 10, 64)
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if err != nil {
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return err.Error()
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}
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cc.NodeID = id
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ccs = append(ccs, cc)
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}
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var cfg tracker.Config
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var prs tracker.ProgressMap
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var err error
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switch d.Cmd {
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case "simple":
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cfg, prs, err = c.Simple(ccs...)
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case "enter-joint":
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var autoLeave bool
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if len(d.CmdArgs) > 0 {
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d.ScanArgs(t, "autoleave", &autoLeave)
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}
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cfg, prs, err = c.EnterJoint(autoLeave, ccs...)
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case "leave-joint":
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if len(ccs) > 0 {
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err = errors.New("this command takes no input")
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} else {
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cfg, prs, err = c.LeaveJoint()
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}
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default:
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return "unknown command"
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}
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if err != nil {
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return err.Error() + "\n"
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}
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c.Tracker.Config, c.Tracker.Progress = cfg, prs
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return fmt.Sprintf("%s\n%s", c.Tracker.Config, c.Tracker.Progress)
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})
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})
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}
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