mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
139 lines
4.0 KiB
Go
139 lines
4.0 KiB
Go
// Copyright 2018 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 snapshot_test
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import (
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"context"
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"fmt"
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"math/rand"
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"net/url"
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"os"
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"path/filepath"
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"testing"
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"time"
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"go.uber.org/zap/zaptest"
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"go.etcd.io/etcd/client/pkg/v3/fileutil"
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"go.etcd.io/etcd/client/pkg/v3/testutil"
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clientv3 "go.etcd.io/etcd/client/v3"
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"go.etcd.io/etcd/client/v3/snapshot"
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"go.etcd.io/etcd/server/v3/embed"
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integration2 "go.etcd.io/etcd/tests/v3/framework/integration"
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)
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// TestSaveSnapshotFilePermissions ensures that the snapshot is saved with
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// the correct file permissions.
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func TestSaveSnapshotFilePermissions(t *testing.T) {
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expectedFileMode := os.FileMode(fileutil.PrivateFileMode)
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kvs := []kv{{"foo1", "bar1"}, {"foo2", "bar2"}, {"foo3", "bar3"}}
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_, dbPath := createSnapshotFile(t, newEmbedConfig(t), kvs)
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defer os.RemoveAll(dbPath)
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dbInfo, err := os.Stat(dbPath)
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if err != nil {
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t.Fatalf("failed to get test snapshot file status: %v", err)
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}
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actualFileMode := dbInfo.Mode()
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if expectedFileMode != actualFileMode {
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t.Fatalf("expected test snapshot file mode %s, got %s:", expectedFileMode, actualFileMode)
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}
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}
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// TestSaveSnapshotVersion ensures that the snapshot returns proper storage version.
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func TestSaveSnapshotVersion(t *testing.T) {
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// Put some keys to ensure that wal snapshot is triggered
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var kvs []kv
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for i := 0; i < 10; i++ {
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kvs = append(kvs, kv{fmt.Sprintf("%d", i), "test"})
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}
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cfg := newEmbedConfig(t)
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// Force raft snapshot to ensure that storage version is set
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cfg.SnapshotCount = 1
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ver, dbPath := createSnapshotFile(t, cfg, kvs)
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defer os.RemoveAll(dbPath)
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if ver != "3.6.0" {
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t.Fatalf("expected snapshot version %s, got %s:", "3.6.0", ver)
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}
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}
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type kv struct {
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k, v string
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}
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func newEmbedConfig(t *testing.T) *embed.Config {
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clusterN := 1
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urls := newEmbedURLs(clusterN * 2)
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cURLs, pURLs := urls[:clusterN], urls[clusterN:]
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cfg := integration2.NewEmbedConfig(t, "default")
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cfg.ClusterState = "new"
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cfg.ListenClientUrls, cfg.AdvertiseClientUrls = cURLs, cURLs
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cfg.ListenPeerUrls, cfg.AdvertisePeerUrls = pURLs, pURLs
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cfg.InitialCluster = fmt.Sprintf("%s=%s", cfg.Name, pURLs[0].String())
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return cfg
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}
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// creates a snapshot file and returns the file path.
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func createSnapshotFile(t *testing.T, cfg *embed.Config, kvs []kv) (version string, dbPath string) {
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testutil.SkipTestIfShortMode(t,
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"Snapshot creation tests are depending on embedded etcd server so are integration-level tests.")
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srv, err := embed.StartEtcd(cfg)
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if err != nil {
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t.Fatal(err)
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}
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defer func() {
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srv.Close()
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}()
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select {
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case <-srv.Server.ReadyNotify():
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case <-time.After(3 * time.Second):
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t.Fatalf("failed to start embed.Etcd for creating snapshots")
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}
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ccfg := clientv3.Config{Endpoints: []string{cfg.AdvertiseClientUrls[0].String()}}
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cli, err := integration2.NewClient(t, ccfg)
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if err != nil {
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t.Fatal(err)
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}
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defer cli.Close()
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for i := range kvs {
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ctx, cancel := context.WithTimeout(context.Background(), testutil.RequestTimeout)
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_, err = cli.Put(ctx, kvs[i].k, kvs[i].v)
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cancel()
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if err != nil {
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t.Fatal(err)
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}
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}
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dbPath = filepath.Join(t.TempDir(), fmt.Sprintf("snapshot%d.db", time.Now().Nanosecond()))
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version, err = snapshot.SaveWithVersion(context.Background(), zaptest.NewLogger(t), ccfg, dbPath)
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if err != nil {
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t.Fatal(err)
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}
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return version, dbPath
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}
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func newEmbedURLs(n int) (urls []url.URL) {
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urls = make([]url.URL, n)
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for i := 0; i < n; i++ {
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u, _ := url.Parse(fmt.Sprintf("unix://localhost:%d", rand.Intn(45000)))
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urls[i] = *u
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}
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return urls
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}
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